50 ohm Coax
SubConn® HF Coax
Drawing information
Dimensions in mm (1 mm = 0.03937 inch)
Threads in inches (1 inch = 25.4 mm)


Connector specifications
Voltage rating on coax insert only: 800 V, max nominal voltage
Frequency*: 0.3 GHz / 0.6 GHz / 0.9 GHz / 1.2 GHz / 1.5 GHz / 1.8 GHz / 2.1 GHz / 2.4 GHz / 2.7 GHz / 3.0 GHz
Attenuation*: 5.0 dB / 7.7 dB / 9.9 dB / 11.6 dB / 13.4 dB / 15.3 dB / 17.3 dB / 19.3 dB / 21 dB / 22.5 dB

Recommended max frequency: 3.0 GHz
Insulation resistance:  > 200 MΩ
Contact resistance: <  0.01 Ω
Temperature rating (water): - 4 to 60˚C, 25 to 140˚F
Temperature rating (air): - 40 to 60˚C, - 40 to 140˚F
Storage temperature rating: - 40 to 60˚C, - 40 to 140˚F
Qualified pressure tested: 600 bar, 8,700 psi (mated)

Material specifications
Connector body: Chloroprene rubber
Bulkhead body: Brass, stainless steel, titanium or anodised aluminium
Bulkhead body (RA): Brass, stainless steel, titanium or anodised aluminium
Coax contacts: Gold plated contacts
O-rings: Nitrile
Locking sleeves: POM or stainless steel
Locking sleeves (RA): RADLSA-M (black POM)
Snap rings: Stainless steel AISI 302
Inline cable (2 ft, 60 cm): PUR jacket cable with RG58 coax
Coax bulkhead leads (3.3 ft, 100 cm): RG316 coax


Additional information
*All frequency and attenuation values are based on a 10 meter cable assembly test including 2 bulkhead connectors (50 Ω).
BNC connector for RG316 coax leads use Amphenol 031-315-RFX or equivalent.
BNC connector for RG58 coax cables use Amphenol 112116 or equivalent.

Recommended SMB termination for Coax, check in Technical Information chapter.

SubConn® Coax connectors are designed for dry mating only. The Coax series is not suitable for open-face pressure or waterblock applications. Locking sleeves are required. Avoid greasing the actual coax part.
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