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):
30
Description
Precision SMA Fixed Attenuator | Plug (Male) to Jack (Female) | 30 dB | 2 W Power Handling | Screw-Lock | Passivated Stainless Steel Body with Gold-Plated BeCu Contact
The ROSNOL FA-PCA1PCA25A-26.5G2W30/9XX-9X precision SMA fixed attenuator supports DC to 26.5 GHz operation with a 50 Ω impedance and VSWR ≤ 1.25. This model offers a nominal attenuation of 30 dB with ±0.6 dB accuracy and handles 2 W average power at 25 °C, with peak power ratings up to 200 W for short-duration pulses. The screw-lock coupling mechanism ensures secure mating, stable signal integrity, and consistent mechanical performance, making it well suited for precision RF measurement and microwave system applications.The internal design utilizes a beryllium copper center contact plated with gold over a nickel underplating to achieve low contact resistance and high durability. A passivated stainless steel body and coupling nut provide excellent corrosion resistance, while the PTFE insulator maintains electrical stability across an operating temperature range of −55 °C to +125 °C. The material stack-up is engineered for reliability in high-frequency and high-attenuation applications.
ROSNOL’s precision RF attenuators are produced in ISO 9001-certified manufacturing facilities and comply with RoHS and REACH requirements. With consistent electrical performance, robust construction, and competitive pricing, ROSNOL attenuators offer a dependable alternative to established European and American brands. Full customization services are available, including attenuation values, materials, plating systems, and mechanical configurations, to meet specific RF design needs.
