Key Specifications
Type Design:
Precision
Connection Type:
In-Series
Connector 1 Series:
Precision SMA
Connector 1 Gender:
Plug (Male)
Connector 2 Series:
Precision SMA
Connector 2 Gender:
Jack (Female)
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):
20
Description
Precision SMA Fixed Attenuator | Plug (Male) to Jack (Female) | 20 dB | 2 W Power Handling | Screw-Lock | Passivated Stainless Steel Body with Gold-Plated BeCu Contact
The ROSNOL FA-PCA1PCA25A-26.5G2W20/9XX-9X precision SMA fixed attenuator operates from DC to 26.5 GHz with 50 Ω impedance and maintains VSWR ≤ 1.25 across the operating band. It delivers 20 dB nominal attenuation with an accuracy of ±0.5 dB and supports 2 W average power handling at 25 °C, with peak power capability up to 200 W under pulse conditions. The precision screw-lock coupling mechanism provides secure engagement, consistent electrical contact, and dependable mechanical durability for repeated mating cycles. Attenuation and power accuracy are validated across the full frequency range.This attenuator incorporates a gold-plated beryllium copper center contact with nickel underplating to ensure excellent conductivity and wear resistance. The stainless steel body and coupling nut are passivated for superior corrosion protection, while the PTFE insulator delivers stable dielectric performance over a wide temperature range of −55 °C to +125 °C. The material and plating system is optimized for long-term reliability in high-frequency RF and microwave environments.
ROSNOL RF attenuators are manufactured under ISO 9001 quality systems and are fully compliant with RoHS and REACH regulations. Designed to deliver high quality at a competitive cost, ROSNOL products represent a practical replacement for premium European and American RF brands. Custom attenuation levels, mechanical designs, materials, and plating options are available to support diverse system requirements.