TNC Male to TNC Female Lightning Arrester - DC - 3 GHz

Product Overview

Designed for an inline 50 ohm coaxial route, this TNC male-to-female protection unit operates across the stated DC to 3 GHz band. Its serviceable 90 V GDT has a reference 10 kA capacity on the 8/20 us wave and connects surge energy to the earth terminal. The specified signal loss is 0.2 dB during normal RF operation.

Core Trade-off: A gas-discharge approach supports a replaceable element and a low-capacitance transmission path. Its response threshold is distinct from diode solutions, so final selection should follow the antenna-line design and installation context.

Protection Mechanism and Construction

• Protection Element: A serviceable 90 V GDT is located in the main enclosure, with a 10 kA reference rating on the 8/20 us waveform. The element can be reached for inspection or replacement while the cable connection remains in place.
• Grounding Path: The side-mounted ring terminal bonds the unit to the site earth bar. Keep this connection direct and practical because its routing affects the energy reaching downstream equipment.
• Body: The plated brass body uses an inline form factor suitable for placement within a compatible RF cable run.
• Connector Interface: The TNC male and female ends accept compatible assemblies. Tighten each interface in line with the relevant connector guidance.

Reference Technical Specifications

The values below are provided as product references. Verify them against the selected production configuration before installation or system commissioning.

Use the listed information as a reference and confirm the final configuration before deployment.

Engineering Comparison

• vs. Quarter-Wave Stub: A quarter-wave solution is limited to its designed frequency range. This inline unit is specified for use from DC through 3 GHz where a compatible multi-band coaxial path is required.
• vs. Diode-Based Protector: Diode-based limiters can add capacitance that affects the applicable frequency or power range. This gas-discharge design has listed 0.2 dB loss and 150 W reference CW capability for suitable transmitter-line applications.
• vs. DC Block Surge Protector: A DC block does not supply the same route for high-energy events to the earth system. This product instead directs a transient toward its ground connection in applicable exterior antenna-line installations.

Applications

• Base radio and repeater, telemetry: Base radio, repeater, and telemetry cable paths may use this configuration at an appropriate antenna-line location to conduct induced surge energy toward the site earth arrangement.
• Tower and Rooftop Installations: At a building-entry, cabinet-entry, or shelter transition, the device can form a grounded point in the transmission-line path.
• Multi-Band Radio Sites: The stated operating span supports compatible legacy or current RF bands without changing the unit configuration.
• Equipment Racks and Test Systems: Positioning the device near a compatible equipment input can help route cable-coupled transients away from connected instruments or radio modules.

Installation and Grounding Notes

• Grounding First: For base-radio or repeater work, join the ground lug to the earth bar using a short, practical conductor. Avoid excessively long or thin leads because the earth-path arrangement affects installed protection.
• Mounting: Locate the inline body at the applicable entry or protection point and retain clear access to its grounding terminal within the site protection arrangement.
• Torque and Sealing: Follow connector-maker tightening guidance. Where the interfaces are exposed outdoors, apply appropriate weather sealing or a suitable boot.

OEM and B2B Support

• OEM Customization: For volume programs, connector combinations, discharge-element options, and plating preferences can be reviewed against the final requirement.
• Cable Assembly Options: Compatible factory-terminated jumper assemblies may be specified with the protection unit already incorporated.
• Packaging and Marking: Protective packaging, custom identification, and batch documentation can be requested where applicable.

FAQ

Q: How often does the gas discharge tube need replacement?

A: The 90 V element is referenced at 10 kA for the 8/20 us wave. Inspect it after a major event and replace it if leakage is found or the hold-off test is unsuccessful.

Q: Will this TNC Male to TNC Female lightning arrester affect my DC - 3 GHz signal?

A: The stated references are 0.2 dB insertion loss and VSWR no greater than 1.25, supporting a compatible low-impact RF path.

Q: Can I use this arrester indoors?

A: Yes. An installation may be made at the equipment side of a run or at an entry location when the system requires another grounded protection point. A TNC Male to TNC Female lightning arrester should be matched to the cable assembly and site bonding route. This RF surge protector is intended for the specified coaxial arrangement. The stated 3 GHz coaxial lightning protection range should be checked against the planned RF system. For base radio and repeater surge protection, locate the device at a suitable cable-entry or equipment-side point. A second TNC Male to TNC Female lightning arrester reference can be used when documenting the selected installation. Confirm the final production configuration before commissioning. Before installation, review the cable route, panel entry, connector access, and bonding location. Confirm that the inline body can be inspected without moving nearby equipment and that the cable has suitable support on both sides. Check the condition of weather sealing where connections are exposed. Document the selected mounting point and earth-bar connection for later maintenance. During service, inspect the ring terminal, cable jacket, connector engagement, and available clearance. If the radio cabinet, cable run, or grounding arrangement changes, reassess the installation before returning the system to normal operation. These practical checks support the specified product configuration and do not replace site procedures or final production documentation.