Product Overview
Amphenol UG-932/U MHV Miniature High Voltage Plug - Straight Clamp, 5000V, Nickel Body, PTFE Dielectric, Silver Contact
Condition
Unused NOS. All hardware components present: hex nut, lock washer, flat washer, rubber grommet, and center contact pin. Nickel-plated body and knurled coupling ring show no wear. Sourced from a government research facility.
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Product Overview
Amphenol UG-932/U is a straight, clamp-style MHV (Miniature High Voltage) male plug rated to 5,000V peak. Designed for RG-59, RG-62, and RG-71 coaxial cables, it terminates via solder center contact and mechanical braid clamp - no crimp tool required. The extended PTFE dielectric nose protrudes past the outer contact ring, a design feature that shields the live center pin when disconnected and prevents accidental cross-mating with standard BNC jacks. Body is brass with nickel plating; center contact is silver-plated. Mates exclusively with MHV female jacks and bulkhead feedthroughs.
Key Features
- Connector type: MHV (Miniature High Voltage) male plug, straight body
- Voltage rating: 5,000V peak
- Termination: Solder center contact, mechanical clamp outer braid
- Cable compatibility: RG-59, RG-59/U, RG-62, RG-62/U, RG-71, RG-71/U, RG-140, RG-210
- Body material: Brass, nickel-plated with knurled coupling ring
- Insulator material: PTFE (Teflon) - extended nose for live-pin protection
- Center contact plating: Silver
- Physically incompatible with standard BNC jacks - MHV dimensions prevent cross-mating
- All clamp hardware included: hex nut, lock washer, flat washer, rubber grommet, center pin
Applications
- Repairing a damaged cable end on a Ludlum Model 3, Bicron Surveyor 50, or similar Geiger survey meter - strip the RG-59 or RG-62 cable, solder the center pin, clamp the braid, and restore the probe connection without replacing the entire assembly
- Assembling custom-length high-voltage transmission cables for vacuum chamber experiments - terminate with the UG-932/U, plug into an MHV bulkhead feedthrough, and twist the bayonet collar to lock
- Building safe patch cables between DIY Geiger counter kits or fusors and legacy surplus high-voltage power supplies that carry MHV jacks
- Terminating RG-62 interconnects between NIM bin modules and high-voltage detectors or proportional counters in nuclear instrumentation setups
- Maker and hobbyist projects interfacing with any military or scientific surplus equipment that uses MHV jacks - the clamp design is reusable with only a soldering iron and a 7/16" wrench
Frequently Asked Questions
Will this mate with a standard BNC connector?
No. MHV connectors use a similar two-stud bayonet mechanism but have different dimensions and an extended dielectric insulator specifically to prevent cross-mating with BNC equipment. This plug mates only with MHV female jacks and bulkhead feedthroughs.
Do I need a crimp tool to install this connector?
No. The UG-932/U is a clamp-style connector. Installation requires a soldering iron for the center contact pin and a 7/16" wrench to tighten the rear clamp nut onto the cable braid. No specialized crimping tool is needed.
Which cable sizes does this fit? Will it work with RG-58?
This connector is designed for RG-59, RG-59/U, RG-62, RG-62/U, RG-71, RG-71/U, RG-140, and RG-210. It is not compatible with RG-58, which has a smaller outer diameter - using it with RG-58 will result in poor strain relief and an inadequate environmental seal.
What is the difference between the UG-932/U and the UG-932A/U?
The UG-932A/U is a closely related military standard variant with minor dimensional updates. Both use the same cable groups (RG-59, RG-62, RG-71). This listing is for the UG-932/U.
Is MHV the same as SHV?
No. SHV (Safe High Voltage) is a later connector standard developed to eliminate the possibility of accidental cross-mating. MHV connectors can technically be force-mated with BNC connectors under extreme pressure, which is a safety concern some modern labs address by mandating SHV instead. Confirm your equipment specifically requires MHV before ordering.
Radiation techs have been trusting this connector for decades - and for good reason. When the cable between your survey meter and its probe gives out, this is the part that puts it back in service without touching anything else.
