BNC Jack (Female) Protective Cap with 125mm Chain

BNC Straight Protective Cap Jack with Chain | Bayonet‑Lock | ROSNOL RF Connector Accessory

The ROSNOL BNC2A00‑1700C‑125/‑4 is a BNC straight protective cap jack with chain, designed to protect unmated BNC female RF connectors from mechanical damage and environmental exposure. This protective cap features a Bayonet‑Lock coupling mechanism to provide secure attachment in applications requiring higher retention force. The body is manufactured from brass with copper‑tin‑zinc alloy construction, while the metal retaining chain is made from brass with nickel plating. The chain has an approximate length of 125 mm to prevent loss during maintenance or field operation. The protective cap supports an operating temperature range from −65°C to +165°C and is fully RoHS compliant.

This BNC protective cap jack with screw‑lock coupling is suitable for RF and microwave systems where connectors are subject to vibration, handling stress, or extended service intervals. The attached chain ensures the cap remains available when unmated, reducing the risk of contamination by dust or moisture and helping preserve connector interface integrity. Typical applications include communication infrastructure, test systems, and equipment using BNC connectors that require enhanced mechanical security.

ROSNOL’s RF connector accessories are precision‑engineered to meet the demanding requirements of RF and microwave transmission systems. Manufactured under ISO 9001‑certified processes, ROSNOL products deliver consistent quality and dependable performance while offering a cost‑effective alternative to solutions from leading European and American brands. All ROSNOL RF components are fully compliant with RoHS regulations, and customization services for materials, plating, and mechanical design are available to support specialized interconnect requirements.