N Plug (Male) Protective Cap with 125mm Chain

N Straight Protective Cap Plug with Chain | Screw‑Lock | ROSNOL RF Connector Accessory

The ROSNOL N1A00‑1420C‑125/‑‑4 is an N straight protective cap plug with chain designed to protect unmated N male RF connectors from mechanical damage and environmental exposure. This protective cap features a screw‑lock coupling mechanism to provide secure attachment in applications requiring enhanced retention. The coupling nut is manufactured from brass with copper‑tin‑zinc alloy construction, while the integrated silicone rubber gasket enhances sealing performance. A metal retaining chain with an approximate length of 125 mm, made from brass with nickel plating, is included 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 N protective cap plug with chain is suitable for RF and microwave systems where connectors are subject to frequent handling or extended service intervals. The attached chain keeps the protective cap readily available, reducing the risk of dust or moisture contamination and helping maintain connector interface integrity. Typical applications include outdoor communication systems, test equipment, and industrial RF installations using N‑type connectors.

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.