SMA‑C‑J1 SMA Male RF Coaxial Antenna Plug

The SMA-C-J1 from Tongda Electronic is arguably one of the most classic and best-selling models in our export lineup. Simply put, it is an SMA female crimp-type connector. We developed this product with a clear objective: to provide a fast, reliable termination solution for small-diameter cables like RG174 and RG316. It maintains a stable 50Ω impedance across a wide frequency range-from DC to 6 GHz-ensuring clean, crisp signal transmission. It is an excellent choice for applications ranging from communication base stations and test equipment to automotive electronics. 

The SMA-C-J1 employs a classic threaded coupling mechanism. As the male connector is screwed in, the threads mesh seamlessly, ensuring a secure lock and a full 360-degree grounding contact between the inner and outer conductors. Its core feature is the internal PTFE insulator, which precisely maintains the spacing between the center and outer conductors, ensuring unimpeded signal transmission without reflection or loss. Meanwhile, the crimp design at the rear uses a specialized tool to tightly clamp the ferrule onto the cable's shielding layer, providing resistance against vibration and pulling forces while completely eliminating electromagnetic interference.

RF jumper cables for telecom base stations and small cells.

Interfaces for lab equipment like spectrum analyzers and network analyzers.

Vehicle GPS modules, Wi-Fi, and Bluetooth antennas.

Industrial IoT (IIoT) sensors.

Microwave systems in aerospace and defense.

Strip Accurately: Always follow our stripping dimension drawings. Don't nick the center conductor, and keep the braided shield neat and tidy.

Use the Right Tool: Never use regular pliers. You must use a dedicated SMA crimping tool. Crimp it firmly in one go-no double crimping!

Keep it Clean: Before crimping, check the inside for any copper shavings or dust. Wipe it with some alcohol if necessary.

Tighten Properly: Hand-tighten to align the threads, then use a torque wrench to tighten it to 0.5–0.7 N·m. Don't use brute force; overtightening can ruin the threads or crack the dielectric.

Weatherproof for Outdoors: If it's going outside, add some heat-shrink tubing or waterproof tape. A little extra protection goes a long way.

At Tongda Electronic, we don't do gimmicks; we just make connectors you can actually rely on. The SMA-C-J1 is a perfect example of what we do best: compact, tough, and built to take a beating. If you're looking for an SMA connector that offers top-notch performance and great value, drop us a line. We're always here with honest pricing and solid technical support!

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