Precision 2.92 mm Female to 1.85 mm Male RF Coaxial Adapter, DC–40 GHz

P/N: VST-A-292F185M-01

– DC–40 GHz transition for female 1.85 mm ports
– 2.92 mm Female interface transitions to 1.85 mm Male
– VSWR ≤1.12 supports broadband measurement continuity
– Compact 26.1 mm body limits added axial length
– Connects male 2.92 mm paths to female 1.85 mm ports

Engineering Note
VST-A-292F185M-01 provides a compact DC–40 GHz transition from a male-ended 2.92 mm test path to a female 1.85 mm instrument, cable, or fixture port. The 2.92 mm female receptacle and 1.85 mm male coupling side establish the required mating polarity before installation. Its 50 Ω design, VSWR ≤1.12, 1000 Vrms dielectric withstand voltage, 26.1 mm body, and confirmed 2A/6H thread classes support direct integration where axial space is constrained.

Technical Specifications

Model VST-A-292F185M-01
Product Type Precision cross-series RF coaxial adapter
Interface 2.92 mm Female to 1.85 mm Male
Frequency Range DC–40 GHz
Impedance 50 Ω
VSWR ≤1.12
Dielectric Withstand Voltage 1000 Vrms
Insulation Resistance 5000 MΩ
Overall Length 26.1 mm
2.92 mm Interface Thread 1/4-36 UNS-2A
1.85 mm Interface Thread M7 × 0.75-6H
Dielectric PEI
Outer Conductor Stainless steel, passivated
Center Conductor Beryllium copper, gold-plated

Target Applications

Female 1.85 mm Instrument Ports

The 1.85 mm male side connects to a female measurement port while the 2.92 mm female side receives the test path.

VNA Cable Transitions

A male-ended 2.92 mm cable can connect directly to a female 1.85 mm interface through DC–40 GHz.

Compact RF Fixtures

The 26.1 mm body limits added axial length in fixtures requiring this specific interface polarity.

Module Port Validation

The adapter supports setups with a male 2.92 mm source side and a female 1.85 mm device port.

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