3.5 kV, 5 kV Peak, SPDT, 18 Amps, VHC-3 Vacuum Relay (non-RF)


ceramic vacuum relay, SPDT contacts, for make-and-break load switching (not RF rated)

(Other manufacturers make other variations of this relay and are sometimes available, inquire)
Jennings RJ1HGigavac GH-3
Test Voltage5 kV
Peak Voltage3.5 kV
Current Carry Amps (RMS)18 amps @ 60 Hz
Contact Close Speed6 MS (Milliseconds)
Contact Release Speed6 MS (Milliseconds)
Rated Life Operations2,000,000

Contacts made of Tungsten to increase life if use for Make / Break load switching.

Important Dimensions
Max Length1.36 in / 35.00 mm
Max Diameter0.92 in / 24.00 mm
Mounting Hole Diameter0.55 in / 14.05 mm
Weight1.00 oz / 28.00 g
MountingThreaded base with mounting nut included.
ConditionBrand New, unused. Guaranteed good.
Manufacturer’s Data SheetClick Here!
About Max-Gain Systems, Inc.

Max-Gain Systems, Inc. carries a full line of in-series, between series, right angle, T-shaped, quick connect, handie-talkie (BLACK), pigtails (coaxial jumpers), etc… RF adapters. Our RF adapter lines are constantly expanding. We keep our RF connector and adapter lines in stock. We ship both retail and wholesale quantities. To become a dealer / wholesale user, contact us with your potential usage.

Max-Gain Systems, Inc. is the number one supplier of fiberglass round hollow tube, square tube and round solid rod to the antenna manufacturing industry. We produce millions of feet a year for hundreds of different industries including but not limited to: marine / boating, aeronautical, agriculture, construction, emergency services, etc…. We have the unique ability to sell one piece or even a semi-truck full. Feel free to prototype using our fiberglass tube and rod then contact us for a quote on a production run. At production run quantities we can cut to your desired lengths at no additional charge, and we can also perform several different fabrications (example: drilling holes in precise locations along a tube) to ensure your delivered material is ready for assembly. We have several accessory items designed for our fiberglass including but not limited to: couplers, telescoping clamps, ferrules, etc…

Additional information

Shipping Weight1.00 oz
Shipping Dimensions1.36 × 0.92 × 0.92 in
Coil Voltage

12 VDC, 26.5 VDC

Contact Set Configuration

Current Rating

18 Amps


3.5 KV

Peak Voltage

5 kV




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