RF Dust Caps

RF dust caps are the simple yet essential protectors for unused RF connectors, sealing out moisture, dust and corrosion when your kit isn’t in service. You’ll find them sized to fit common terminations – BNC, N, TNC, SMA and the like – in materials ranging from rugged nylon to brass with EPDM or silicone O-rings. When selecting caps, match the connector type, check the IP or NEMA rating for your environment, and consider whether you want tethered or free-floating styles for quick access. A well-chosen dust cap prolongs connector life, maintains low VSWR and keeps your install running cleanly.