Coaxial adapter cable Rangeful BNC male to SMA male RG58/U 50 Ω, 0.5 m

Rangeful BNC male to SMA male coaxial adapter cable is a 0.5 m RF patch lead assembled on RG58/U 50 Ω coaxial cable. The cable provides a compact, flexible connection between devices with BNC and SMA male ports and is intended for use in RF signal routing, antenna connections and test and measurement setups where a matched 50 ohm impedance is required.

Advantages

The RG58/U construction ensures characteristic 50 Ω impedance and stable electrical performance across typical VHF/UHF ranges. The BNC male and SMA male connectors enable quick, threaded or snap-style mating with common laboratory instruments, antennas and RF modules. At 0.5 m length the cable offers sufficient reach without excess bulk, keeping test benches tidy and minimizing insertion loss. The compact flexibility of the cable facilitates routing in confined spaces and supports repeated connect/disconnect cycles in measurement environments.

Suitable for

• Connecting laboratory test equipment with BNC outputs to devices with SMA inputs
• Antenna feedlines for routers, modems, or portable radio gear requiring 50 Ω
• Signal routing in RF prototyping and electronics workshops
• Temporary connections during calibration and measurement procedures

Key specifications

• Cable type: RG58/U coaxial
• Characteristic impedance: 50 Ω
• Connectors: BNC male to SMA male
• Length: 0.5 m
• Intended use: RF, antenna connections, test and measurement

How to use

Connect the BNC male end to the BNC jack by aligning and pushing until the bayonet locks; connect the SMA male end by hand-threading and tightening to the SMA jack until snug. Avoid excessive torque on the SMA connector; use a suitable torque wrench only if specified by the connected equipment. Route the cable to prevent sharp bends and avoid placing heavy objects on it. Before measurements, verify that both equipment ports expect 50 Ω impedance to maintain measurement accuracy.

Usage recommendations

For consistent RF performance, keep cable length as short as practical for your setup, maintain smooth bends with radii larger than the cable diameter, and inspect connectors for contamination or damage before use. If using sensitive test equipment, ensure connectors are clean and tighten SMA connections to the manufacturer-recommended torque.