Low PIM RF Connector 4310-J1/2 Female

As a dedicated source manufacturer deeply engaged in the RF coaxial connector industry, we have witnessed the rapid evolution of mobile communication networks from 4G to 5G. We understand that in dense antenna arrays and complex base station systems, every single connection node directly impacts the overall network performance. Therefore, we proudly present the 4.3-10-J1/2 RF Connector. This product is our core solution tailored for the stringent demands of next-generation communication equipment-delivering "compact size, low passive intermodulation (Low PIM), and easy installation." It is designed to help our clients achieve superior RF performance within limited spaces.

The 4.3-10-J1/2 is a Low Passive Intermodulation (Low PIM) RF coaxial connector specifically designed for mobile communication systems. The "J" designates the male (pin) structure, and the "1/2" indicates that it is custom-developed for 1/2-inch super-flexible or corrugated coaxial cables. Compared to traditional 7/16 DIN connectors, our 4.3-10 series reduces volume by 40% and weight by 60%. This not only saves significant space at the antenna end but also enables tool-free quick mating. Backed by over 30 years of precision manufacturing heritage, this connector delivers industry-leading Low PIM performance and outstanding waterproof/dustproof capabilities while maintaining an ultra-compact footprint.

This connector operates based on the 50Ω coaxial transmission line mechanism. Electrically, the high-precision internal center pin achieves surface contact with the mating female receptacle, ensuring highly efficient and low-loss RF signal transmission. The outer metal shells mate tightly via an innovative locking mechanism (supporting threaded, hand-screw, or push-pull quick-lock options) to form a complete outer conductor circuit. This design provides 360° comprehensive electromagnetic shielding, effectively isolating external Electromagnetic Interference (EMI) and preventing signal leakage. Mechanically, the separation of the electrical and mechanical planes ensures that while achieving Low PIM performance, the connector no longer relies excessively on locking torque, significantly reducing installation difficulty.

The 4.3-10-J1/2 connector mainly consists of the following core components:

Outer Conductor (Body): Manufactured from high-quality brass or stainless steel with a tri-metal or white bronze plating finish, providing excellent corrosion resistance, mechanical support, and electromagnetic shielding.

Inner Conductor (Pin): Made of high-conductivity copper and plated with hard gold to minimize contact resistance, enhance high-frequency transmission efficiency, and improve oxidation resistance.

Dielectric Insulator: Positioned between the inner and outer conductors, utilizing premium Polytetrafluoroethylene (PTFE) to support the inner conductor, maintain constant characteristic impedance, and provide electrical insulation.

Sealing & Locking Mechanism: The rear is equipped with a polymer claw ring and a silicone rubber O-ring seal. Combined with a precision locking nut, this ensures an IP68 waterproof and dustproof rating in both mated and unmated states.

Below are the standard electrical and mechanical performance specifications for the 4.3-10-J1/2 connector:

Characteristic Impedance: 50Ω

Frequency Range: 0-3GHz

Passive Intermodulation (PIM): ≤ -166 dBc @ 2x43 dBm

Voltage Standing Wave Ratio (VSWR): ≤ 1.15 @ 3 GHz

Contact Resistance: Inner Conductor ≤ 1.5 mΩ, Outer Conductor ≤ 1.0 mΩ

Insulation Resistance: ≥ ≥10000mΩ

Dielectric Withstanding Voltage: ≥ 750 V rms (at sea level)

Ingress Protection Rating: IP68 (Mated state, 2 meters water depth for 1 hour)

Mechanical Life: ≥ 100 mating cycles

Operating Temperature Range: -65℃ ~ +165℃

Environmental Compliance: Fully compliant with RoHS / REACH standards

With its compact size and outstanding electrical performance, the 4.3-10-J1/2 connector is widely used in the following fields:

5G/4G Macro & Micro Base Stations: For jumper cable connections between RRUs (Remote Radio Units) and antennas, perfectly adapting to the spatial constraints of high-density antenna arrays (e.g., Massive MIMO).

Distributed Antenna Systems (DAS): Applicable for signal coverage equipment in complex indoor environments such as shopping malls, subways, and airports.

Microwave & Satellite Communications: For stable high-frequency signal transmission links.

Test & Measurement Equipment: Serving as dedicated interfaces for Low PIM test loads, calibration kits, and RF analyzers.

To ensure the optimal performance of the 4.3-10-J1/2 connector, please observe the following guidelines during installation and operation:

Proper Operation: For hand-screw or push-pull versions, no tools are required; simply rotate or push/pull to complete the connection. For threaded versions, use a dedicated torque wrench and avoid over-tightening.

Maintain Clean Interfaces: Always inspect and clean the pin and insulator faces before mating. Even microscopic dust or metal shavings are the primary culprits behind elevated PIM values and signal degradation.

Cable Termination Process: Strictly follow our provided stripping dimension drawings to ensure a secure and solid crimp or solder joint, preventing cable detachment and impedance mismatch.

Waterproofing Measures: Although the product itself features an IP68 rating, for long-term outdoor exposure in harsh environments, we recommend applying additional waterproof tape or heat-shrink tubing at the connection point for dual protection.

Packaging: Standard packaging includes individual anti-static bags, packed in high-strength corrugated cartons with cushioning materials to protect the connectors from compression and moisture during long-distance sea or air freight. Customized pallet packaging is also available upon request.

Lead Time: For standard 4.3-10-J1/2 products, we typically maintain ample inventory, allowing for shipment within 1-3 working days after order confirmation. For special locking mechanisms or bulk custom orders, the standard production cycle is approximately 15 working days. The exact lead time will be confirmed upon order placement.

As a source factory with over 30 years of history, Zhenjiang Tongda Electronics Co., Ltd. has always regarded technological innovation and unwavering quality as the lifeline of our business. We not only provide 4.3-10 series connectors that comply with IEC international standards but also rely on our provincial-level engineering technology research center to solve various non-standard customization and special cable adaptation challenges for you at any time. If you are looking for a partner who understands technology, prioritizes quality, and ensures stable delivery, please visit our official website to explore our complete product catalog. We sincerely invite you to leave us a message or contact us via email/phone. Our technical team will provide you with professional selection advice and highly competitive quotation solutions at the earliest opportunity!

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