Key Specifications
Type Design:
Precision
Connection Type:
In-Series
Connector 1 Series:
2.92mm
Connector 1 Gender:
Plug (Male)
Connector 2 Series:
2.92mm
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):
40
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):
40
Attenuation Max. (dB):
30
Description
2.92 mm Fixed Attenuator | Plug (Male) to Jack (Female) | 30 dB | 40 W | Screw-Lock | Stainless Steel Body, Passivated
ROSNOL FA-K1K25A-40G40W30/9XX-9X is a 2.92 mm fixed attenuator supporting DC to 40 GHz at 50 Ω impedance with VSWR ≤ 1.35. It handles 40 W average power at 25 °C and up to 200 W peak. Nominal attenuation accuracy for 30 dB is −2.0 / +3.0 dB. The screw-lock coupling mechanism provides secure engagement with recommended torque of 0.9 Nm and durability of ≥ 500 cycles. Center contact captivation meets axial ≥ 20 N requirements. Operating temperature range is −55 °C to +125 °C.The center contact uses beryllium copper with gold plating over a nickel-phosphorus underlayer for enhanced electrical performance and corrosion resistance. Stainless steel body and coupling nut are passivated, while the insulator is PTFE for high thermal stability. Silicone rubber gaskets ensure environmental sealing, and an integrated black anodized aluminum heatsink provides efficient heat dissipation for high-power operation.
ROSNOL’s precision-engineered RF attenuators deliver high performance and consistent value for RF and microwave systems. Manufactured in ISO 9001–certified facilities, all ROSNOL components comply with RoHS and REACH. ROSNOL provides cost-effective alternatives to leading European and American brands and offers comprehensive customization for materials, plating, and mechanical design.
