2.8mm Pitch 2×4P 5G Base Station Connector (Total Length 9.9mm)

This 2.8 mm pitch 2×4P 5G base station connector is a high-density board-to-board / board-to-cable interconnect component specially engineered for 5G communication infrastructure hardware. With a total overall length of 9.9 mm, this dual-row 4-position per-row connector delivers compact footprint, stable signal transmission and outstanding mechanical reliability for base station internal wiring, power distribution and high-speed signal routing. It is widely deployed inside remote radio units, baseband processing units and auxiliary control modules of 5G macro-sites and small-cell sites.

The mechanical dimension of total length 9.9 mm is strictly controlled during injection molding and stamping production. The 2.8 mm pin pitch balances high-density layout and sufficient creepage distance, which is critical for 5G telecom equipment. The PPS housing offers excellent thermal stability, anti-aging performance and resistance to chemical solvent inside base station cabinet environment. Selective gold plating is applied on the mating contact surface to guarantee low-resistance signal transmission even after long-term vibration and temperature cycling. The solder tails are tinned to achieve good solderability for PCB assembly. All raw material batches are traceable for telecom-grade quality requirement. Every finished connector undergoes dimensional inspection, plating thickness verification and electrical performance test before packing.

• Ultra-compact dimension optimized for 5G base station internal space constraint With total length only 9.9 mm and 2.8 mm pitch 2×4P layout, this connector saves valuable PCB real estate inside densely packed 5G RU, BBU and small-cell cabinets. Modern 5G base station hardware integrates multi-band radio modules, power supply circuits and signal processing circuits in limited cabinet volume. Miniaturized interconnect components become essential. This 9.9 mm short-body design avoids physical interference with surrounding components, supporting compact PCB layout design without sacrificing electrical safety margin. Design engineers can implement dense harness routing while keeping enough clearance for thermal dissipation.
• High-reliability contact system for telecom long-term operation The contact spring is stamped from high-elastic copper alloy. The mating contact area adopts precise selective gold plating process. Gold plating effectively prevents oxidation and surface corrosion under variable temperature and humidity inside outdoor base station cabinets. Stable low contact resistance is maintained during whole equipment service life. The contact structure provides proper contact normal force, resisting continuous vibration caused by fan operation and outdoor mechanical shock. Compared with ordinary consumer-grade connectors, this telecom-oriented product strictly controls spring deflection and stress relaxation, avoiding signal drop-off or intermittent connection failures. Minimum 500 mating cycles ensure convenient module maintenance and replacement in field service scenarios.
• Anti-misinsertion polarization & fool-proof housing design The PPS plastic housing is molded with built-in polarizing key feature. It physically blocks reverse insertion or offset mating. On-site maintenance technicians will not damage pin contacts by wrong insertion. This fool-proof function greatly reduces human-caused hardware failure risk during base station installation and troubleshooting. The housing wall thickness is enhanced to improve mechanical strength. It is resistant to accidental bump and scratch during assembly and transportation. UL94-V0 flame retardant PPS material suppresses fire spreading risk for power-signal mixed application inside telecom racks.
• Wide temperature adaptability for outdoor 5G infrastructure 5G base station equipment faces complex ambient condition: outdoor remote radio units may suffer low temperature in winter and high temperature when heat accumulates in cabinet in summer. This connector supports working temperature from -40℃ to +105℃. PPS housing keeps stable mechanical property under wide temperature swing. Contact spring will not lose elasticity under thermal cycling test. It can be used for both indoor BBU room and outdoor pole-mounted radio unit without extra protective modification.
• RoHS-compliant lead-free manufacturing & easy PCB assembly All materials comply with RoHS 2.0 and REACH regulation, suitable for global telecom-equipment export. Through-hole solder tail fits standard lead-free reflow soldering process. Solder-tail tin plating brings good wettability. SMT-related assembly work can be finished on standard production line without special tooling. The connector delivers consistent dimensional tolerance for high-volume automated assembly.
• Balanced power-signal mixed-use capability Each contact supports 3A rated current. It can transmit low-voltage auxiliary power and control signal simultaneously. For many 5G sub-modules, designers need one connector to handle both power supply and status signal feedback. This 2×4P 2.8 mm pitch connector realizes mixed power-signal interconnection, reducing total connector quantity and simplifying whole harness architecture.

This 2.8 mm pitch 2×4P 9.9 mm length 5G base station connector is developed for wireless communication infrastructure, and it also extends to other high-reliability industrial hardware fields.

1. 5G Macro Base Station Remote Radio Unit (RRU/RU) Inside outdoor 5G remote radio units, numerous sub-modules need internal interconnection: power supply distribution board, signal control board, fan monitoring module, status indicator module. This compact connector connects internal sub-boards and small harness assemblies. Its wide-temperature performance adapts to outdoor pole-mount or tower-mount RU environment, resisting temperature fluctuation and cabinet-internal vibration.

2. 5G Base Band Unit (BBU) Cabinet In indoor BBU equipment room, multiple function boards are plugged into BBU chassis. Auxiliary control signals, fan sensor signals and local power distribution circuits adopt this connector for board-to-board and board-to-cable connection. Small-size feature helps BBU achieve high-density multi-board layout inside standard telecom rack.

3. 5G Small-Cell & Indoor Distributed Base Station Indoor coverage small-cell devices have strict dimension limitation. Light-weight, miniaturized communication hardware requires compact interconnect components. This 9.9 mm short-length connector fits small-cell internal PCB wiring, supporting enterprise indoor coverage, shopping mall, subway and office-building 5G signal-coverage equipment.

4. Telecom Power Supply & Monitoring Module Base station matched power-supply unit, environment monitoring module, alarm-signal collection board use this connector for signal transmission. It transfers equipment status signal, over-temperature alarm signal and auxiliary low-voltage power. High vibration resistance ensures stable data collection for remote monitoring system.

5.Industrial Wireless Gateway & Edge-Computing Communication Hardware Beyond pure 5G base station, industrial wireless gateway, edge computing box and IoT communication gateway also select this connector. Those devices work in factory, transportation-hub and outdoor cabinet environment, requiring same wide-temperature and anti-vibration performance as telecom infrastructure.

6. Other high-reliability industrial control equipment It can be applied to industrial sensor harness, embedded control board interconnection, and automated-equipment signal-interface. Wherever compact size, wide temperature range and reliable connection are required, this connector can serve as alternative interconnect solution.

Q1: What is the total length dimension of this 2×4P connector? Can you guarantee dimensional consistency in mass production?
A: The overall total length of this 2.8 mm pitch 2×4P connector is 9.9 mm. We implement strict mold maintenance and periodic dimensional sampling inspection for every production batch. Key dimensions including total length, pin pitch, pin height and housing opening size are checked by optical measuring instrument. Dimensional report can be provided upon customer request for project validation.

Q2: What is the difference between selective gold plating and full-surface gold plating for this connector?
A: We adopt selective gold plating: only the mating contact area is gold-plated, while solder tails are tin-plated. This solution keeps low contact resistance for signal mating interface and maintains good solderability for PCB soldering. Meanwhile it optimizes product cost without sacrificing telecom-grade reliability. If customer requires full gold plating for special application, customized plating service is available.

Q3: Can this connector work in outdoor base station cabinet directly? Does it need extra waterproof housing?
A: This product is an internal-device connector, designed for inside cabinet usage, not for direct exposure to rain and moisture. It is non-waterproof. It should be used inside sealed base-station cabinet. If your application needs outdoor waterproof interconnection, please consult our technical team for corresponding waterproof connector series.

Q4: What is the maximum working current for each pin? Can I run higher current than rated value?
A: The rated current is 3 A per contact under standard ambient temperature. Actual allowable current will decrease when multiple pins carry current simultaneously and temperature rises. We suggest operating below rated current. If you need higher-current solution, please share your working condition including current value, working temperature and pin-usage quantity, our engineer will give suggestion for product selection.

Q5: Is this connector RoHS compliant? Can you supply compliance certificate?
A: Yes, all raw materials comply with RoHS regulation. We can provide RoHS test report and material compliance certificate for your project certification requirement.

Q6: What is the lead-time for sample order and mass-production order?
A: For small-quantity sample order, sample lead-time is around 7-10 working days. For mass-production bulk order, lead-time depends on order quantity and raw-material stock status. Please send us your demand quantity, we will give you exact quotation and lead-time.

Q7: Can you provide custom modification? For example changing pin quantity, plating thickness or housing color?
A: Customization service is available. We support modification on pin count, gold plating thickness, housing color and special mechanical structure according to customer drawing or specification. Custom project needs minimum order quantity, our sales-technical team will evaluate your requirement and give detailed proposal.

Q8: What kind of mating counterpart can be used with this male header?
A: This is through-hole male header. Matching female socket and corresponding cable assembly can be supplied by our company. You can share your mating-side requirement, we can recommend matching part number for your reference.

Thank you for reviewing our 2.8 mm Pitch 2×4P 5G Base Station Connector product introduction. If you have technical questions, sample request, quotation demand, custom-project consultation or need further product drawing, 3D file, specification sheet, please feel free to reach our sales and technical support team.

Our team specializes in communication-grade connector and interconnect solution for 5G base station, industrial control and wireless-infrastructure industry. We provide full-set support including product selection guidance, technical parameter confirmation, sample delivery, mass-production order follow-up and after-sales technical service.

We welcome global customers including telecom equipment manufacturer, system integrator, cable-harness factory and distributor to establish long-term cooperative relationship with us.

Please kindly tell us your detailed requirement including part-number, target quantity, application scenario, special technical demand when sending inquiry. Our colleague will reply to you in short time.