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25 Watt RF Attenuators

Bird's 25-A Series RF attenuators provide fixed signal attenuation from DC to 4 GHz in a compact, convection-cooled design. Choose from multiple attenuation values and N-Type connector configurations to meet your RF system requirements.

25-A-Series_25W_Attenuators_wht

Performance at a Glance

25 W Continuous Power

Handles up to 25 W of continuous RF power for RF testing, measurement, and system applications.

Bi-Directional Operation

Supports RF signal flow in either direction, providing flexible placement within test setups and RF systems.

Passive Convection Cooling

Dissipates heat through natural airflow with no fans or additional power required.

Next Step: Review the specifications below, then select the 25 W model that best fits your application.

Technical Specifications at a Glance

Review the specifications common to all 25-A Series attenuators.
Need help with RF terms? See the RF Glossary>

Series Name
Directionality
VSWR
Dimensions
Weight
Detailed Specs
25-A Series View Specs ›
Bi-Directional
1.10:1 (DC to 1 GHz)
1.25:1 (1 to 4 GHz)
5.3 in x 2.3 in Dia.
(135 mm x 59 mm Dia.)
9.0 oz (256 g)
View Specs ›
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All 25-A models share the specifications above. Select the model below that matches your attenuation and connector requirements.

25 W Model Configurations

Model Number
Frequency Range
Attenuation
RF Connector
Ordering
25-A-FFN-10 Buy Now
DC to 4 GHz
10 dB
N (f) to N (f)
Buy Now
25-A-FFN-20 Buy Now
DC to 4 GHz
20 dB
N (f) to N (f)
Buy Now
25-A-FFN-30 Buy Now
DC to 4 GHz
30 dB
N (f) to N (f)
Buy Now
25-A-MFN-10 Buy Now
DC to 4 GHz
10 dB
N (m) to N (f)
Buy Now
25-A-MFN-20 Buy Now
DC to 4 GHz
20 dB
N (m) to N (f)
Buy Now
25-A-MFN-30 Buy Now
DC to 4 GHz
30 dB
N (m) to N (f)
Buy Now
25-A-MFN-40 Buy Now
DC to 4 GHz
40 dB
N (m) to N (f)
Buy Now
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← Back To All Attenuators
Need help choosing a 25 W attenuator?

Get Expert Help Selecting the Right Model

If you're deciding between attenuation values, connector configurations, our RF applications engineers can help you determine which 25 W attenuator best fits your system requirements.

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