Key Specifications
Type Design:
Precision
Connection Type:
In-Series
Connector 1 Series:
2.92mm
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
2.92mm
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):
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):
50
Attenuation Max. (dB):
50
Description
2.92 mm Fixed Attenuator | Plug (Male) to Jack (Female) | 50 dB | 50 W | Screw-Lock | Stainless Steel Body, Passivated
ROSNOL FA-K1K25A-40G50W50/9XX-9X is a 2.92 mm fixed attenuator operating from DC to 40 GHz at 50 Ω impedance with VSWR ≤ 1.35. It supports 50 W average power at 25 °C and up to 200 W peak. Nominal attenuation accuracy for 50 dB is −2.0 / +3.0 dB. The screw-lock coupling mechanism provides secure mating with recommended torque of 0.9 Nm and durability of ≥ 500 cycles. Temperature range −55 °C to +125 °C.The center contact uses beryllium copper with gold plating over a non-magnetic nickel-phosphorus underlayer (approx. 3 μin Au over 80 μin Ni-P) for superior conductivity and corrosion resistance. Stainless steel body and coupling nut are passivated, while PTFE insulators ensure high thermal stability. Silicone rubber gaskets provide sealing, and an integrated black anodized aluminum heatsink enhances heat dissipation for reliable performance under extreme conditions.
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.
