Key Specifications
Type Design:
Standard
Connection Type:
In-Series
Connector 1 Series:
SMA
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
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):
8.0
Connector 1 Body Material:
Brass
Connector 1 Body Plating:
Gold Plating (Nickel underplated)
Connector 2 Body Material:
Brass
Connector 2 Body Plating:
Gold Plating (Nickel underplated)
VSWR, Max:
1.30
Power, Max (Watts):
2
Attenuation Max. (dB):
1
Description
SMA Fixed Attenuator | 2 W Power | 1 dB | Screw-Lock | Brass Body
The ROSNOL FA-A1A25A-8G2W1/911-91 is a precision-engineered SMA fixed attenuator designed for high-frequency applications up to 8 GHz. It features a 50 Ω impedance, VSWR ≤ 1.30 (≥17.69 dB return loss), and supports 2 W average power at 25°C. The nominal attenuation is 1 dB with accuracy of ±0.7 dB across the specified range. The screw-lock coupling mechanism ensures secure connections and mechanical durability of ≥500 mating cycles.Constructed with premium materials, the center contact is beryllium copper with gold plating over a nickel underlayer for superior conductivity and corrosion resistance. The body and coupling nut are brass with gold plating over nickel, while the insulator is PTFE for excellent dielectric performance. A silicone rubber gasket provides environmental sealing. The design ensures reliable operation across a temperature range of -55°C to +125°C.
ROSNOL’s RF components deliver exceptional quality and cost efficiency, offering a competitive alternative to leading European and American brands. All products are manufactured in ISO 9001-certified facilities and fully comply with RoHS and REACH regulations. Customization services for attenuation values, materials, and plating are available to meet specialized requirements.
