Yangzhou Jingcheng Electronics Co., Ltd. is professional in designing, developing, producing, sales and service of RF (Radio Frequency) coaxial connectors.
Reliable RF interconnection is a fundamental requirement in modern communication, test, aerospace, industrial, and wireless equipment. As operating frequencies increase and system dimensions become smaller, the connector is no longer a simple mechanical accessory. It becomes an active part of the signal path, influencing impedance continuity, insertion loss, return loss, shielding effectiveness, mechanical stability, and the long-term reliability of the complete assembly.
The JC3.660.4004 SSMA-KFD-5 is an SSMA micro-strip RF connector designed for compact high-frequency interconnection applications. Its configuration is intended to support the transition between an RF transmission structure and a printed circuit or micro-strip layout. By combining the compact SSMA interface with a board-level micro-strip connection, this type of connector helps equipment designers create efficient, serviceable, and space-conscious RF assemblies.
The product is manufactured and supplied by Yangzhou Jingcheng Electronics Co., Ltd., an experienced RF interconnection manufacturer established in 1999. The company develops and produces a broad portfolio of RF coaxial connectors, adapters, reverse polarity connectors, coaxial lightning protectors, high-frequency cables, cable assemblies, attenuators, terminal loads, antennas, and related products. Its product range includes more than 2,000 types, allowing customers to obtain both standard and customized solutions from one technical source.
This article examines the SSMA-KFD-5 from the perspective of product function, application value, design considerations, manufacturing quality, customization capability, and supplier strength. Because exact electrical ratings can vary according to the final configuration, mating interface, PCB design, plating specification, and test conditions, users should confirm the latest controlled drawing and technical datasheet before engineering release.
JC3.660.4004 SSMA-KFD-5
Content
The SSMA-KFD-5 belongs to the SSMA Micro-strip RF Connectors category. SSMA connectors are compact threaded coaxial connectors developed for applications where the equipment must maintain high-frequency performance while using less board and panel space than larger connector families. Their small form factor makes them suitable for densely populated electronic assemblies, modules, instruments, and communication equipment.
The designation JC3.660.4004 identifies the manufacturer’s product model, while SSMA-KFD-5 describes the connector configuration within the company’s product system. The “KFD” portion may indicate a particular mounting or termination arrangement in the manufacturer’s nomenclature. Since coding conventions differ among suppliers, the final installation method, mounting dimensions, contact arrangement, and compatible mating parts should always be confirmed against the official product drawing.
At the functional level, the connector provides a controlled RF transition between a coaxial mating interface and a micro-strip circuit. This transition must preserve the characteristic impedance of the transmission path as far as practical. It also needs to prevent unnecessary discontinuities caused by abrupt changes in conductor geometry, excessive parasitic capacitance, poor grounding, or inaccurate placement on the printed circuit board.
A high-quality micro-strip connector is therefore evaluated through more than its external appearance. Important considerations include dimensional accuracy, center-contact alignment, grounding design, shielding continuity, dielectric stability, plating quality, solderability or attachment compatibility, mechanical retention, and repeatability between production batches.
Modern RF systems often contain multiple functional blocks within a limited enclosure. These may include filters, amplifiers, oscillators, frequency converters, receivers, transmitters, switching networks, sensors, and measurement interfaces. Each block must be connected without introducing unacceptable signal degradation. In a compact system, even a short interconnection can affect performance if its geometry is not controlled.
Micro-strip circuits are widely used because they can be fabricated directly on printed circuit boards and integrated with active and passive RF components. They provide a convenient planar transmission structure, but they also require a carefully engineered connection to an external coaxial cable or test port. A connector such as the SSMA-KFD-5 serves as that interface.
The connector must accommodate mechanical assembly while maintaining an electrically smooth transition. This involves matching the connector’s signal pin to the board trace, creating an effective ground return path, and controlling the surrounding clearance and mounting geometry. The quality of the connector and the accuracy of the PCB footprint work together to determine final performance.
Compared with a larger connector, an SSMA solution can reduce occupied area and weight. Compared with a less specialized general-purpose connector, it may offer a more appropriate interface for high-frequency compact modules. These advantages are especially useful when the product designer needs to balance electrical performance, enclosure size, assembly efficiency, and serviceability.
The primary advantage of an SSMA micro-strip connector is its compact footprint. Small RF modules frequently have strict limitations on board edge length, panel area, and component spacing. A compact connector allows the designer to place ports closer together and preserve more board area for filters, matching networks, control circuits, and thermal management structures.
Space efficiency is also important in portable instruments, communication terminals, satellite-related electronics, wireless sensors, and test fixtures. Reducing connector size can help decrease the size of the overall enclosure without requiring the designer to compromise the accessibility of the RF interface.
SSMA interfaces are associated with high-frequency applications where signal integrity and mechanical precision are important. The SSMA-KFD-5 is intended for integration with micro-strip circuits, making it suitable for RF assemblies that require a controlled transition between coaxial and planar transmission structures.
In a well-designed installation, the connector can support a short and direct RF path. A direct path reduces the need for unnecessary internal cables, extra adapters, or complicated mechanical routing. Fewer transitions can simplify the system and reduce the number of possible sources of mismatch and loss.
The SSMA interface uses a threaded mating concept. Threaded RF interfaces generally provide more secure coupling than push-on arrangements when the equipment is exposed to vibration, repeated handling, or cable movement. The threaded connection helps maintain contact pressure and reduce the likelihood of accidental disengagement during operation.
For reliable performance, the mating torque, connector alignment, wrench clearance, and cable loading must follow the applicable technical requirements. The connector should not be used as a mechanical support for an excessively heavy or rigid cable. Proper strain relief remains important even when the RF interface itself is threaded.
The micro-strip configuration allows the connector to be installed directly at the edge or designated region of a printed circuit board. This can simplify the RF architecture by connecting the external coaxial port directly to the board transmission line.
Direct board-level integration can also support modular product design. A manufacturer may develop a common RF board platform and use compatible connector arrangements across several equipment versions. This supports product standardization, reduces redesign effort, and can improve manufacturing consistency.
A detachable external interface makes inspection, testing, replacement, and system reconfiguration easier. Instead of permanently attaching a cable to the RF module, the designer can use the connector as a defined service point. This is valuable in laboratory instruments, field equipment, communication systems, and production test stations.
Serviceability is especially beneficial when a system must be calibrated or tested at multiple stages. A properly selected connector enables engineers to connect test equipment while preserving a repeatable interface between the instrument and the device under test.
Different products may require variations in mounting style, body geometry, contact plating, attachment method, board thickness compatibility, or environmental protection. A connector manufacturer with extensive engineering experience can often adapt a standard platform to meet project-specific requirements.
The SSMA-KFD-5 can therefore be considered not only as an individual catalog item but also as part of a wider RF interconnection solution. When the required configuration differs from the standard version, customers can discuss technical requirements with the manufacturer’s engineering team before finalizing the design.
Product competitiveness in the RF connector market depends on a combination of electrical performance, mechanical reliability, delivery capability, documentation, customization, and total ownership cost. A connector with an attractive unit price may not be economical if it causes difficult assembly, unstable RF results, premature failure, or repeated qualification work.
The SSMA-KFD-5 offers several practical benefits when compared with larger, less compact, or less application-specific alternatives. Its small form factor can support denser layouts. Its threaded interface can provide more secure mating. Its micro-strip termination can reduce the length and complexity of the board transition. Its position within a broad product family can also help customers source related connectors, adapters, cables, lightning protectors, and other RF accessories from the same supplier.
Another competitive advantage is the possibility of engineering coordination. RF connectors cannot always be selected independently of the PCB, enclosure, cable, and system grounding design. A supplier that understands the complete interconnection chain can help identify potential problems earlier than a vendor focused only on dimensional supply.
For customers with multiple equipment platforms, supplier breadth is also valuable. A single source that offers coaxial connectors, reverse polarity connectors, adapters, high-frequency cables, cable assemblies, attenuators, terminal loads, antennas, and coaxial lightning protectors can reduce procurement complexity. It may also make it easier to maintain interface compatibility across product families.
RF systems are commonly designed around a defined characteristic impedance. The connector transition should be compatible with the impedance environment of the cable and board. If the center conductor, dielectric region, ground structure, or board trace changes abruptly, reflections may occur.
Return loss and voltage standing wave ratio are influenced by both the connector and the surrounding PCB layout. The connector alone cannot guarantee the final system result. The footprint, trace width, ground-via placement, solder fillet, board material, board thickness, and enclosure geometry all contribute to the transition.
For this reason, the SSMA-KFD-5 should be evaluated using the actual PCB stack-up and intended operating frequency range. Engineering validation may include vector network analyzer measurements, time-domain analysis, or comparison with a calibrated reference assembly.
Insertion loss represents the signal power lost as energy passes through the interconnection. Connector loss is normally affected by conductor resistance, surface finish, dielectric properties, geometry, contact quality, and frequency. Maintaining clean surfaces and stable contact pressure is important for repeatable results.
In a complete RF system, the connector’s insertion loss may be small compared with cable or circuit losses, but it can become important when multiple interfaces are placed in series. Compact, accurately manufactured connectors can help the designer reduce unnecessary transition loss, particularly in sensitive receiver paths or high-frequency test equipment.
Effective shielding requires continuity around the signal path and a low-impedance ground return. A connector body that is not properly bonded to the board ground can create an unwanted discontinuity. The PCB should provide an appropriate ground arrangement around the mounting region, including suitable ground pads and, where required, strategically positioned vias.
Shielding performance is particularly important in equipment containing high-gain amplifiers, sensitive receivers, local oscillators, and densely packed digital circuits. A well-integrated connector helps limit unwanted coupling and supports the overall electromagnetic compatibility strategy of the product.
At higher frequencies, small dimensional changes can influence performance. Variations in contact position, dielectric spacing, mounting height, and board alignment may affect the electrical response. Consistent manufacturing processes are therefore essential for repeatable high-frequency behavior.
The SSMA-KFD-5 should be selected in combination with a PCB design that is controlled for material type, dielectric thickness, copper geometry, and fabrication tolerance. Prototype validation is recommended before large-scale production, especially when the connector is used near the upper frequency limit of the system.
The connector must remain firmly attached to the board or supporting structure during assembly, mating, unmating, transportation, and operation. The mechanical design should distribute loads appropriately and avoid placing excessive stress on the center contact or soldered region.
When a cable is connected, bending and pulling forces can be transferred to the connector. Cable routing, strain relief, panel support, and enclosure design should be used to protect the RF interface. A high-quality connector performs best when it is installed according to the intended mechanical conditions.
Conductive materials and surface treatments influence contact resistance, corrosion resistance, solderability, wear resistance, and long-term stability. The appropriate finish depends on the electrical requirements, mating frequency, environmental exposure, assembly process, and customer specification.
For projects with strict material or compliance requirements, customers should specify the required base materials, plating system, RoHS or other regulatory expectations, and any restrictions on substances. The manufacturer can then confirm the available configuration and documentation.
Outdoor communication equipment, industrial systems, transportation electronics, and infrastructure products may experience wide temperature and humidity variations. Thermal expansion, condensation, corrosion, and material aging can affect connector reliability.
Qualification testing should be selected according to the intended application. Possible evaluations may include temperature cycling, damp heat, salt exposure, vibration, shock, mating durability, and insulation or dielectric testing. The specific test plan should be agreed upon between the customer and supplier because environmental requirements vary significantly by industry.
Threaded mating helps protect against accidental loosening, but the total assembly must still be designed for vibration. The connector, PCB, cable, bracket, and enclosure must work together. Applications in vehicles, industrial machinery, outdoor cabinets, and aerospace-related equipment may require additional mechanical reinforcement.
Where vibration is expected, engineers should check fastener retention, cable flexibility, connector support, solder joint stress, and clearance around the mating interface. Qualification should be performed using the final assembly rather than an isolated component whenever possible.
Yangzhou Jingcheng Electronics Co., Ltd. was founded in 1999 and has built its business around RF coaxial connectors and related interconnection products. More than two decades of focused industry experience can support a better understanding of connector construction, customer application requirements, manufacturing tolerances, and common field issues.
Experience is particularly important for micro-strip products because their performance depends on the interaction between mechanical dimensions and electrical geometry. A supplier familiar with RF component development is better positioned to identify the relationship between connector design, PCB layout, cable selection, and system testing.
The company offers more than 2,000 product types. Its product categories include coaxial connectors, adapters, reverse polarity connectors, coaxial lightning protectors, high-frequency cables, cable assemblies, attenuators, terminal loads, antennas, and additional RF products.
This breadth gives customers access to compatible products for many parts of an RF system. For example, a customer developing an outdoor wireless device may require an SSMA connector for an internal board, a coaxial cable assembly for an external connection, a lightning protector for the antenna path, and an adapter for test equipment. A broad portfolio can reduce the need to coordinate several unrelated suppliers.
The company specializes in design, development, production, sales, and service. This integrated structure supports communication between product engineering, manufacturing, quality control, and customer service. It can also make the response to technical changes more efficient.
For customized connector programs, integrated capability is valuable because the project may involve drawing review, sample development, tooling, process validation, performance testing, packaging, and mass production. Keeping these activities within one coordinated supply chain can help reduce misunderstandings and improve accountability.
RF connector production requires precise machining, forming, assembly, plating, inspection, and testing. The company reports the use of advanced manufacturing and testing equipment. Such equipment supports the production of small and dimensionally sensitive parts while enabling process monitoring and quality verification.
Manufacturing equipment is only one part of quality assurance. Its effectiveness depends on calibration, preventive maintenance, operator training, process documentation, and statistical monitoring. A mature production environment uses equipment and procedures together to maintain consistent output.
The company maintains professional research and development and engineering teams. This capability is relevant when customers require more than a standard catalog part. Engineering support may involve connector selection, interface matching, board footprint review, material recommendations, cable integration, environmental requirements, or product customization.
Early engineering communication can help avoid common design problems. For example, a connector may appear mechanically compatible but create a poor RF transition because the board trace or grounding arrangement is incorrect. Reviewing the complete interface before tooling or mass production can save time and reduce redesign risk.
The company describes rigorous quality systems as part of its manufacturing capability. In RF connector production, quality systems should cover incoming materials, machining dimensions, plating condition, assembly control, electrical testing, visual inspection, packaging, and traceability.
Customers with formal supplier qualification procedures may request inspection standards, control plans, first-article reports, material certificates, test records, lot identification, and change-control procedures. These documents help demonstrate that the production process is controlled and that subsequent batches can be compared with approved samples.
The manufacturing process begins with product definition. Engineers review the interface type, mounting method, board compatibility, operating conditions, required materials, electrical targets, and customer documentation. The design is assessed for manufacturability as well as performance.
For the SSMA-KFD-5, the connector-to-board transition is a central consideration. The design must account for the position of the center contact, the ground interface, the expected board thickness, the installation process, and the mating structure. Tolerance analysis helps determine whether the design can be produced consistently.
RF connectors commonly contain several small components, including a body, center contact, insulating element, retaining parts, and mounting features. These parts require controlled dimensions and appropriate surface quality.
Machining and forming operations must be selected according to the material and geometry. Critical dimensions should be inspected using suitable gauges or measuring equipment. Burrs, deformation, contamination, or dimensional drift can affect both assembly and electrical performance.
Surface treatment protects conductive components and supports stable electrical contact. Plating processes must be controlled for coverage, thickness, adhesion, cleanliness, and appearance. The selected finish should match the connector’s intended environment and mating requirements.
Quality control in this stage may include visual inspection, thickness measurement, adhesion checks, and verification of process records. Consistent plating is important because surface irregularities or contamination can increase contact resistance and reduce durability.
The center contact and insulating components must be assembled with accurate alignment. The contact should be retained securely while maintaining the intended position within the RF path. Excessive movement, tilt, or axial displacement can change the electrical transition and affect mating reliability.
Assembly equipment and fixtures should control insertion depth, concentricity, and retention. Operators or automated systems must also prevent damage to plated surfaces and insulating materials. Intermediate inspections can detect defects before final assembly.
After component assembly, the connector is inspected for appearance, dimensions, alignment, thread condition, mounting geometry, and mechanical integrity. Critical dimensions should be checked against the approved drawing or control specification.
Dimensional inspection is especially important for small SSMA components because minor deviations may influence mating, board placement, or signal performance. Inspection results should be linked to production lots when traceability is required.
Depending on the product specification, testing may include continuity, insulation resistance, dielectric withstand, contact resistance, return loss, insertion loss, voltage standing wave ratio, and mechanical durability. The exact tests and limits must be defined for the particular model and application.
RF testing should use calibrated instruments, suitable fixtures, and controlled connection procedures. Test fixtures themselves can introduce errors, so calibration and reference verification are essential. Mechanical tests may evaluate mating cycles, torque behavior, pull strength, retention, or environmental durability.
Small RF connectors can be damaged by impact, contamination, moisture, or uncontrolled bulk handling. Appropriate packaging should protect mating surfaces, threads, center contacts, and plated areas during storage and transportation.
Packaging labels should identify the product model, quantity, production lot, and any special handling requirements. Customers with automated assembly lines may also require tray, tube, reel, or other packaging formats.
The performance of the SSMA-KFD-5 depends strongly on the PCB layout. The recommended footprint should be taken from the current product drawing rather than recreated from approximate measurements. The board designer should verify the mounting hole, pad dimensions, signal trace geometry, ground area, keep-out regions, and edge clearance.
The micro-strip trace should be designed for the board material and stack-up used in production. Trace width alone does not define impedance; dielectric thickness, dielectric constant, copper thickness, solder mask, and nearby structures also contribute. Any change in PCB supplier or laminate construction may require renewed validation.
Ground vias can help create a more continuous return path around the RF transition. However, their number, diameter, pitch, and distance from the signal path should be selected through engineering analysis or proven reference designs. Poorly placed vias can introduce their own discontinuities.
Soldering conditions should be compatible with the connector materials and plating. Excessive solder, insufficient solder, voiding, misalignment, or reflow movement can affect the RF transition. The assembly process should include inspection criteria for connector position and solder joint quality.
For prototypes, it is useful to include measurement points or removable test structures where practical. This allows the engineering team to separate connector behavior from the performance of the active circuit. Once the design is stable, the production board can be optimized for cost and size.
Compact wireless communication modules often require multiple RF ports in a confined space. An SSMA micro-strip connector can provide a compact interface for radio-frequency paths while supporting modular assembly and test access.
Laboratory and production test equipment depends on repeatable RF connections. The threaded interface and compact form of an SSMA connector can be useful in test fixtures, signal generators, receivers, analyzers, calibration modules, and specialized measurement assemblies.
High-performance electronics may require compact, mechanically secure, and carefully controlled RF interfaces. The final connector selection must be based on the required environmental, reliability, traceability, and qualification standards. The SSMA-KFD-5 may be evaluated for suitable applications where its interface and configuration meet the project requirements.
Industrial sensing equipment may use RF signals for wireless communication, radar-based measurement, proximity detection, or condition monitoring. Compact board-mounted connectors can simplify enclosure design and make field testing more convenient.
Signal distribution assemblies often use several connector types and adapters to connect modules, cables, and instruments. An SSMA connector may be used where a smaller high-frequency interface is required within a compact subassembly.
Research teams frequently modify circuits and evaluate alternative RF architectures. A detachable micro-strip connector provides a convenient point for connecting cables, test equipment, or interchangeable modules. It can shorten development cycles by making repeated measurements easier.
Before ordering the SSMA-KFD-5, customers should confirm the complete product identification, connector gender, mating interface, mounting style, board compatibility, material finish, environmental requirements, and required electrical performance. Product photographs are useful for general recognition but should not replace a dimensional drawing.
The customer should also identify the intended cable type, mating connector, maximum operating frequency, expected power level, ambient temperature, humidity, vibration, and number of mating cycles. These factors help determine whether the standard configuration is appropriate or whether a modified version is needed.
For new projects, it is advisable to request samples before finalizing the PCB and enclosure. The sample should be evaluated in the actual mechanical and electrical environment. Prototype testing can reveal issues involving board edge clearance, cable bending radius, wrench access, connector height, and RF response.
For volume production, customers should discuss forecast quantity, packaging, delivery schedule, lot traceability, inspection documents, and change notification procedures. Early communication helps the manufacturer plan materials, tooling, process capacity, and quality controls.
RF equipment manufacturers do not always require an entirely new connector. In many cases, a standard design can be adapted through controlled changes to mounting dimensions, cable termination, body configuration, plating, insulation, packaging, or marking.
Customization should begin with a clear technical brief. Useful information includes a mechanical drawing, PCB stack-up, interface requirements, electrical targets, environmental profile, assembly process, applicable industry standards, and estimated annual demand. The more complete the information, the more efficiently the engineering team can assess feasibility.
Custom products should pass a formal sample approval process. This may include dimensional comparison, mating evaluation, RF measurement, environmental testing, assembly trials, and first-article inspection. Once approved, changes to critical materials or processes should be controlled and communicated.
Connector reliability is built through the combination of design, material control, process stability, inspection, and correct application. A connector that meets its initial electrical target must also maintain acceptable performance after storage, assembly, mating, vibration, and environmental exposure.
Users should protect unused connectors with suitable packaging or caps. Mating surfaces should be kept clean and free from particles. Connectors should be mated straight and tightened according to the specified method. Over-tightening can damage threads or deform components, while under-tightening can reduce contact stability.
Repeated mating should be limited to the rated durability of the selected interface. When a cable is frequently connected and disconnected, operators should avoid twisting or bending the cable during torque application. A proper torque wrench may be appropriate for controlled production or laboratory work.
Inspection during maintenance can identify damaged threads, worn contact surfaces, contamination, loose mounting, or cable strain. Replacing a suspect connector early can prevent more expensive failures in the connected RF module.
RF connector purchasing is not only a matter of comparing catalog prices. The supplier’s technical knowledge, production consistency, testing ability, product breadth, and communication quality can have a direct effect on the customer’s project schedule and field reliability.
Yangzhou Jingcheng Electronics Co., Ltd. combines long-term RF industry experience with design, development, production, sales, and service capabilities. Its more than 2,000 product types provide options for different connector families and related RF assemblies. Its reported advanced manufacturing and testing equipment supports precision production, while its R&D and engineering teams can assist with standard and customized requirements.
The company’s product coverage is also useful for customers who need more than one connector. Coaxial connectors, adapters, reverse polarity connectors, coaxial lightning protectors, high-frequency cables, cable assemblies, attenuators, terminal loads, and antennas may all be part of the same system design. A supplier capable of supporting these products can help simplify interface coordination and procurement.
For the SSMA-KFD-5 specifically, the supplier’s value lies in connecting the product to a wider engineering and manufacturing capability. Customers can evaluate the connector not only as an individual component but as part of a complete RF interconnection strategy.
The SSMA-KFD-5, identified by product code JC3.660.4004, is an SSMA micro-strip RF connector. It is intended to provide a compact connection between an SSMA coaxial interface and a micro-strip circuit or printed circuit board. The exact mounting and termination details should be verified using the current manufacturer drawing.
Potential applications include compact wireless communication equipment, RF modules, test and measurement devices, industrial electronics, research platforms, signal distribution assemblies, and other high-frequency systems requiring a small threaded coaxial-to-board interface.
No connector should be assumed to support every frequency, power level, environment, or assembly method. The SSMA-KFD-5 should be evaluated against the project’s required frequency range, impedance, insertion loss, return loss, power, temperature, vibration, and mating conditions.
Customization may be possible depending on the required change, quantity, tooling needs, materials, and technical targets. Customers should provide a drawing or application specification so the manufacturer’s engineering team can assess the request.
The designer should confirm the official footprint, connector orientation, mounting dimensions, board thickness compatibility, center-contact position, ground arrangement, trace geometry, keep-out area, soldering process, and recommended via configuration. The latest controlled drawing should be used for production design.
Grounding provides the return path for the RF signal and helps maintain shielding continuity. Poor grounding can create impedance discontinuities, unwanted coupling, higher reflection, and degraded system performance. The connector and PCB ground structure should therefore be designed as one electrical transition.
A threaded interface can provide secure mechanical coupling and better resistance to accidental separation than some push-on interfaces. Correct mating alignment and torque remain necessary, and the cable should be supported so that excessive mechanical force is not transferred to the connector.
Outdoor use depends on the complete product configuration and environmental protection design. The connector’s materials, plating, sealing, cable assembly, enclosure, and lightning protection arrangement must all be evaluated. Outdoor applications may require additional environmental qualification.
Typical evaluation may include dimensional inspection, mating checks, continuity, insulation resistance, dielectric withstand, insertion loss, return loss, voltage standing wave ratio, mechanical durability, and environmental testing. The final test plan should reflect the application and applicable standards.
Yes. The supplier’s product portfolio includes coaxial connectors, adapters, reverse polarity connectors, coaxial lightning protectors, high-frequency cables, cable assemblies, attenuators, terminal loads, antennas, and other related products. This can support broader RF system sourcing requirements.
Customers can contact Yangzhou Jingcheng Electronics Co., Ltd. through the company’s sales or engineering channels and provide the product code, application, drawings, required quantity, electrical targets, and environmental conditions. This information enables a more accurate product and customization review.
The JC3.660.4004 SSMA-KFD-5 is a compact SSMA micro-strip RF connector intended for controlled, space-efficient, and serviceable high-frequency interconnection. Its value comes from the combination of a small threaded interface, board-level micro-strip integration, direct RF routing, and suitability for dense electronic assemblies.
Its competitive benefits include compact construction, secure threaded mating, convenient PCB integration, potential reduction of unnecessary interconnections, and adaptability to specialized RF designs. However, final performance depends on the connector configuration, PCB footprint, grounding arrangement, materials, assembly process, cable selection, and operating environment. Engineering validation with the actual system is therefore essential.
Yangzhou Jingcheng Electronics Co., Ltd. strengthens the product offering through long-term RF industry experience, more than 2,000 product types, advanced manufacturing and testing equipment, professional R&D and engineering teams, quality-oriented processes, and the ability to provide standard or customized interconnection solutions. This combination makes the SSMA-KFD-5 suitable for customers seeking more than a basic catalog component and requiring dependable technical support throughout product development and production.
For the best result, buyers should confirm the controlled product drawing, electrical specifications, materials, environmental ratings, testing requirements, packaging, and delivery conditions before placing a production order. When properly selected, installed, and validated, the SSMA-KFD-5 can contribute to reliable RF performance in compact communication, measurement, industrial, and specialized electronic systems.
1. RF Connector Engineering Principles, technical reference material covering impedance control, shielding, contact design, and high-frequency interconnection.
2. Micro-Strip Transmission Line Design Guidelines, reference material on PCB stack-up, trace geometry, grounding, and RF transition layout.
3. Coaxial Connector Interface and Test Practice, reference material covering mating systems, mechanical durability, electrical measurements, and calibration.
4. Printed Circuit Board Assembly Quality Practices, reference material covering soldering, inspection, component placement, and process control.
5. Environmental Reliability Testing for Electronic Interconnections, reference material covering temperature cycling, humidity, vibration, shock, corrosion, and durability evaluation.
6. Manufacturer Product and Capability Information for JC3.660.4004 SSMA-KFD-5 and related RF interconnection products.
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