Fixed RF and microwave attenuators for precision test paths, high-power signal chains and cryogenic systems. Interface platforms from 1.0 mm to N-Type, with selected models up to 110 GHz.
RF Attenuator Overview
Vinstronics fixed RF attenuators cover broadband microwave and mmWave signal paths through selected high-power and low-temperature configurations. Frequency coverage, attenuation values, impedance match and power ratings are specified by individual model; a platform's highest frequency and power ratings should not be combined.
RF Attenuator Families
Browse by coaxial interface. Listed upper frequencies refer to selected models within each family.
1.0 mm Attenuators
Selected models to 110 GHz
1.85 mm Attenuators
Selected models to 67 GHz
2.4 mm Attenuators
Selected models to 50 GHz
2.92 mm Attenuators
Selected models to 40 GHz
3.5 mm Attenuators
Selected models to 26.5 GHz
SMA Attenuators
Selected models to 26.5 GHz
N-Type Attenuators
General RF and higher-power configurations
Additional interfaces and representative specifications are in the Selection Guide.
View All RF Attenuators →View RF Attenuator Platform MatrixFrequency and power overview
| Platform | Frequency Range | Power Capability | Product Class |
|---|---|---|---|
| 1.0 mm | DC–110 GHz | 2 W | Precision mmWave |
| 1.85 mm | DC–67 GHz | Up to 10 W @ 67 GHz | Precision mmWave / power |
| 2.4 mm | DC–50 GHz | Up to 35 W @ 50 GHz | Precision / power |
| 2.92 mm | DC–40 GHz | Up to 50 W @ 40 GHz | Precision / power |
| 3.5 mm | DC–26.5 GHz | Up to 150 W @ 26.5 GHz | Precision / power |
| SMA | Up to DC–26.5 GHz | Up to 100 W @ 26.5 GHz; selected models to 200 W at lower bands | Precision / general / power |
| N-Type | Up to DC–18 GHz | Up to 500 W @ 18 GHz; 1000 W @ 6 GHz | General / high power |
These are platform capabilities across different models. Power ratings are model-, frequency-, attenuation- and thermal-condition dependent; maximum frequency and maximum power must not be assumed to apply to the same part.
Specialty RF Attenuators
Application-specific options for power handling and low-temperature signal chains.
High-Power RF Attenuators
Selected heat-sink constructions for higher RF power levels. Power capability depends on operating frequency, attenuation and cooling conditions.
Cryogenic RF Attenuators
Fixed attenuation for cryostat and low-temperature microwave signal paths. Interface and attenuation values are selected for the stage and frequency requirements.
Featured RF Attenuators
Representative models and published series with distinct frequency and attenuation configurations.
1.0 mm Precision Attenuators
Selected 2 W models
2.92 mm Precision Attenuator
VST-U-292XX0201-40G
SMA Fixed Attenuator
Selected 10–40 dB options
SMP Cryogenic Attenuator
VST-QU-SMP030202-18G
Frequently Asked Questions
Does the maximum power rating apply across the full frequency range?
Not necessarily. Maximum power and frequency ratings depend on the specific model, attenuation value and thermal conditions. Do not combine the highest ratings from different models.
Which cryogenic attenuator interfaces are available?
Selected 2.92 mm, SMA, SMP and SSMP fixed attenuator platforms are available for cryogenic applications. Frequency, attenuation and operating-temperature limits must be confirmed for each model.
What information is useful for an attenuator quotation?
Provide the operating frequency range, attenuation value, RF input power, interface and gender, operating conditions and quantity. Include cooling or thermal constraints for high-power applications.
RF Attenuator Selection Guide
Interface platforms, frequency coverage, representative models, attenuation options and model-specific power ratings.
Download Selection Guide ↗Need a Specific Attenuator?
Send the frequency range, attenuation, RF power, connector configuration and operating conditions for review.
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