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):
6.0
Connector 1 Body Material:
Stainless Steel
Connector 1 Body Plating:
Passivated
Connector 2 Body Material:
Stainless Steel
Connector 2 Body Plating:
Passivated
VSWR, Max:
1.20
Power, Max (Watts):
2
Attenuation Max. (dB):
6
Description
SMA Fixed Attenuator | Male to Female | 6 dB | 2 Watt | Screw-Lock | Stainless Steel Body Passivated
The ROSNOL FA-A1A25B-6G2W6/9XX-9X is a high-precision fixed attenuator engineered for RF and microwave systems. Operating from DC to 6 GHz, it provides a nominal attenuation of 6 dB with an accuracy of ±0.3 dB, ensuring stable signal performance. The device maintains a 50 Ω impedance, VSWR ≤ 1.20 (≥20.83 dB return loss), and supports 2 Watts average power at 25°C. Its screw-lock coupling mechanism guarantees secure connections, with axial contact retention ≥27 N, radial ≥3 Ncm, and mechanical durability exceeding 500 mating cycles. Recommended torque is 0.8–1.1 Nm for optimal reliability.Constructed from premium materials, the center contact is beryllium copper with gold plating over nickel underplating for superior conductivity and corrosion resistance. The body and coupling nut are stainless steel with passivated finish, while the insulator is PTFE for excellent dielectric properties. Silicone rubber gaskets provide environmental sealing, and the assembly withstands temperatures from -65°C to +125°C, ensuring long-term durability.
ROSNOL’s RF attenuators deliver exceptional performance at competitive pricing, making them a cost-effective 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 options are available to meet specialized requirements.