Key Specifications
Type Design:
Precision
Connection Type:
In-Series
Connector 1 Series:
Precision SMA
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
Precision SMA
Connector 2 Gender:
Plug (Male)
Impedance (Ohm):
50
Body Style:
Straight
Connector 1 Connection Method:
Threaded (Screw-lock)
Connector 2 Connection Method:
Threaded (Screw-lock)
Frequency, Max (GHz):
26.5
Connector 1 Body Material:
Stainless Steel
Connector 1 Body Plating:
Passivated
Connector 2 Body Material:
Stainless Steel
Connector 2 Body Plating:
Passivated
VSWR, Max:
1.35
Power, Max (Watts):
2
Attenuation Max. (dB):
3
Description
Precision SMA Fixed Attenuator | Plug (Male) to Jack (Female) | 3 dB | 2 W Power Handling | Screw-Lock | Passivated Stainless Steel Body with Gold-Plated BeCu Contact
The ROSNOL FA-PCA1PCA25A-26.5G2W3/9XX-9X precision SMA fixed attenuator is designed for DC to 26.5 GHz operation with a characteristic impedance of 50 Ω and VSWR ≤ 1.25. This model provides a nominal attenuation of 3 dB with an attenuation accuracy of ±0.5 dB, supporting 2 W average power handling at 25 °C and peak power up to 200 W under short-pulse conditions. A precision screw-lock coupling mechanism ensures reliable mating, stable contact retention, and repeatable mechanical performance for laboratory and system-level RF measurements. Electrical performance is verified across the specified frequency band to ensure consistent attenuation and power accuracy.The construction features a precision beryllium copper center contact with gold plating over a nickel underplating to ensure low contact resistance and long-term signal stability. The body and coupling nut are manufactured from stainless steel with a passivated finish for enhanced corrosion resistance. A PTFE insulator provides excellent dielectric performance and thermal stability across an operating temperature range from −55 °C to +125 °C, supporting reliable operation in demanding RF environments.
ROSNOL’s RF attenuators are precision-engineered in ISO 9001-certified facilities and fully comply with RoHS and REACH requirements. Offering consistent quality, competitive pricing, and dependable RF performance, ROSNOL attenuators serve as a cost-effective alternative to leading European and American brands. Comprehensive customization services, including attenuation values, materials, plating options, and mechanical configurations, are available to meet specialized application needs.
