
Gigavac GH3 SPDT High Voltage Relay - 3.5kV / 18A
The Gigavac GH3 is a compact, vacuum-sealed Single Pole Double Throw (SPDT) high-voltage relay designed for high-speed switching and reliable power management. Engineered to handle peak voltages up to 3.5kV and a continuous carry current of 18 Amps, the GH3 stands out with its ultra-fast 6ms operate and release times. Its hermetically sealed vacuum dielectric ensures low (0.02 Ohms) and stable contact resistance over a mechanical life of 2 million cycles. This makes the GH3 an ideal solution for applications where space is limited but fast response and long-term durability are critical.
Product Highlights
- Fast Switching: Rapid 6ms maximum operate and release time
- SPDT Configuration: Versatile Single Pole Double Throw (Form C) switching
- Vacuum Dielectric: Hermetically sealed for ultra-low and stable resistance
- Carry Current: Reliable continuous carry capability up to 18 Amps
- Extended Longevity: Engineered for a mechanical life of 2,000,000 cycles
- Compact Design: High power-to-size ratio for high-density electronic assemblies
Fields of Use
- High-Voltage Test and Measurement Instrumentation
- Radio Frequency (RF) Antenna Switching
- Medical Electronics (MRI and Diagnostic Imaging)
- Capacitor Discharge and Pulse Power Circuits
- Industrial High-Voltage Power Supply Control
- Aerospace and Defense Communication Systems
Technical Specifications
| Contact Arrangement | Single Pole Double Throw (SPDT) |
|---|---|
| Voltage Rating (Peak) | 3.5 kV Peak (DC or 60Hz) |
| Max Carry Current | 18 Amps (DC or 60Hz) |
| Max. Contact Resistance | 0.02 Ohms |
| Max Operate Time | 6 ms |
| Max Release Time | 6 ms |
| Mechanical Life | 2,000,000 Cycles |
| Dielectric Strength | Vacuum Sealed |
Technical Datasheet
Download the official Gigavac GH3 datasheet for comprehensive technical documentation, including dimensional drawings, terminal configurations, and performance curves.
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