1.85 mm Male-to-Female Precision Fixed Attenuator Series, 1 W, DC–67 GHz | VST-U-185XX0101-67G

P/N: VST-U-185XX0101-67G

• DC–67 GHz Broadband Performance
• 3 / 6 / 10 / 12 dB Fixed Attenuation Values
• 1 W Power Handling | 50 Ω
• VSWR ≤1.55
• Precision 1.85 mm Male-to-Female Interface
• Passivated Stainless-Steel Body with Gold-Plated BeCu Contacts

Product Overview

VST-U-185XX0101-67G is a 50 Ω 1.85 mm male-to-female precision fixed attenuator series covering DC to 67 GHz. Available in 3, 6, 10, and 12 dB nominal attenuation values, the series provides fixed level reduction in broadband RF and millimeter-wave measurement paths.

The attenuators are rated for 1 W with a maximum VSWR of 1.55:1. Passivated stainless-steel construction and gold-plated BeCu inner contacts provide a compact inline solution for compatible 1.85 mm coaxial test systems.

Key Engineering Features

DC–67 GHz Broadband Performance

Broadband operation for RF and millimeter-wave measurement paths through 67 GHz.

3 / 6 / 10 / 12 dB Fixed Attenuation

Available in 3, 6, 10, and 12 dB nominal attenuation values.

1 W Power Rating | 50 Ω

1 W rated power with 50 Ω nominal impedance.

VSWR ≤1.55

Maximum specified VSWR of 1.55:1 across the rated frequency range.

1.85 mm Male-to-Female Interface

Inline male-to-female configuration for compatible precision coaxial test paths.

Stainless-Steel Construction & Gold-Plated BeCu Contacts

Passivated stainless-steel body and connector outer parts with gold-plated BeCu inner contacts.

Attenuation Options & Tolerances

Nominal Attenuation 3 dB 6 dB 10 dB 12 dB
Attenuation Tolerance -1.0 / +1.2 dB -1.0 / +1.2 dB -1.0 / +1.2 dB -1.0 / +1.5 dB
Use in 67 GHz Measurement Paths

The male-to-female configuration allows direct inline insertion between compatible 1.85 mm interfaces. Select the nominal attenuation value according to the required signal-level reduction and power conditions of the measurement setup.

Electrical Performance

Series Part Number VST-U-185XX0101-67G
Frequency Range DC–67 GHz
Available Attenuation 3 / 6 / 10 / 12 dB
VSWR 1.55:1 Max.
Impedance 50 Ω
Power Rating 1 W
Temperature Range -55°C to +125°C
Mechanical & Materials

Connector Configuration 1.85 mm Male-to-Female
Connector Outer Material Stainless steel, passivated
Male Inner Contact Beryllium copper, gold-plated
Female Inner Contact Beryllium copper, gold-plated
Body Material Stainless steel, passivated
Overall Size Ø8 × 26.8 mm ±2%
Weight 5 g
Compliance RoHS
Typical Applications

Millimeter-Wave Test Systems

Defined signal-level reduction in broadband measurement paths operating through 67 GHz.

VNA Measurement Chains

Inline fixed attenuation between compatible instrumentation, fixtures, adapters, and devices under test.

RF & Millimeter-Wave Device Test

Inline attenuation for component, module, and device measurements through 67 GHz.

1.85 mm Interconnect Systems

Fixed level reduction in compatible 1.85 mm coaxial test assemblies.

Ordering & Verification

Series Part Number

VST-U-185XX0101-67G
XX denotes the selected attenuation value. Available nominal values: 3, 6, 10, and 12 dB.

RF Test Documentation

RF test report available upon request.

Handling Note

Use appropriate handling and mating practices for 1.85 mm precision interfaces. Avoid unnecessary mechanical loading during installation and removal.

Configure a 1.85 mm Fixed Attenuator for Your Test Setup

Specify the required attenuation value, operating frequency, power level, and interface requirements for quotation or technical review.

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Engineering Support

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