Description
The TNC straight male connector manufactured by Zhenjiang Tongda Company is a 50Ω RF coaxial connector designed for 50-3 (RG58), SYV50-3, and similar coaxial cables. Designated as model TNC-J3, this product features a threaded coupling mechanism, offers a wide range of applications, and is available for high-volume global supply.
Working Principle
Our TNC straight male connector (Model TNC-J3) features a precision coaxial design and 50Ω impedance, enabling low-loss RF signal transmission. It utilizes a threaded locking mechanism to ensure a reliable, vibration-resistant connection, while its all-metal housing provides superior shielding performance to effectively suppress electromagnetic interference. Furthermore, it is fully compatible with RG58/SYV-50-3 cables, ensuring a smooth impedance transition between the cable and the connector, thereby maintaining stable RF link performance.
Materials and Surface Finishes
Housing and center pin base material: Brass
Contact plating: Gold (reduces contact resistance; provides oxidation and corrosion resistance; ensures long-term mating stability)
Insulator: PTFE (resistant to high and low temperatures; low dielectric loss; excellent high-frequency performance)
Crimp sleeve and nut: Nickel-plated copper alloy (rust-resistant and wear-resistant)
Key electrical parameters
| Characteristic impedance | 50Ω |
| Operating frequency | DC～11 GHz |
| VSWR | ≤1.3 (full frequency band) |
| Insulation resistance | ≥5000 MΩ |
| Dielectric withstand voltage | 1500 Vrms |
| Center pin contact resistance | ≤2 mΩ; outer conductor contact resistance: ≤0.2 mΩ |
| Mating cycle lifespan | ≥500 times |
| Operating temperature range | -65℃ ～ +165℃ |
advantage
1. High upper frequency limit (up to 11 GHz); high-frequency performance is far superior to BNC (≤4 GHz);
2. Threaded locking mechanism offers vibration resistance and prevents loosening, making it suitable for vibrating environments and mobile equipment;
3. High versatility; RG58/SYV-50-3 is among the most commonly used RF cables on the market;
4. Excellent shielding performance and strong interference resistance;
5. Gold-plated contacts ensure superior electrical stability and a long service life;
Wide range of application scenarios
1. Antenna cables for two-way radios, vehicle-mounted radios, and wireless data transmission modules
2. Jumper cables for external GPS, BeiDou, and 4G/IoT antennas
3. Test cable assemblies for RF test instruments, signal generators, and spectrum analyzers
4. Interconnects for outdoor base stations, wireless security bridges, and microwave communication equipment
5. RF interconnects for aerospace, defense, automotive, and other applications requiring high vibration resistance
Zhenjiang Tongda Electronics Co., Ltd. is a professional manufacturer of RF coaxial connectors. We maintain ample stock of TNC straight male connectors for 50-3 (RG58) coaxial cables and can also provide a wide range of connector products tailored to your specific needs.
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