Key Specifications
Type Design:
Standard
Connection Type:
Between Series
Connector 1 Series:
SMA
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
BMA
Connector 2 Gender:
Plug (Male)
Impedance (Ohm):
50
Body Style:
Straight
Panel Mount:
None
Connector 1 Connection Method:
Threaded (Screw-lock)
Connector 2 Connection Method:
Slide-On
Frequency, Max (GHz):
22
Connector 1 Body Material:
Stainless Steel
Connector 1 Body Plating:
Passivated
Connector 2 Body Material:
Stainless Steel
Connector 2 Body Plating:
Passivated
VSWR, Max:
1.15
Description
BMA Plug (Male) to SMA Jack (Female) | Straight Design | Slide-On & Screw-Lock | Stainless Steel Body
The ROSNOL AD-BA1A25A/9X-9X is engineered for 50 Ω systems, supporting DC to 22 GHz with VSWR ≤1.15 (≥23.1 dB return loss) and insertion loss ≤0.05 × √F (GHz) dB. Electrical specifications include operating voltage of 350 Vrms and dielectric withstanding voltage of 1000 Vrms. Contact resistance is ≤5.0 mΩ (BMA) and ≤3.0 mΩ (SMA); outer contact resistance ≤2.5 mΩ on both sides. Coupling uses slide-on for BMA and screw-lock for SMA, ensuring secure engagement with ≥1000 mating cycles (BMA) and ≥500 cycles (SMA). Recommended torque for SMA is 0.5–0.9 N·m.Materials and plating: center contacts are beryllium copper with 3 µin gold plating over 80 µin nickel-phosphorus underplating. Bodies are stainless steel with passivated finish; insulators are PTFE; gaskets are silicone rubber. Rated for −65 °C to +125 °C, providing excellent corrosion resistance and mechanical reliability.
ROSNOL delivers precision-engineered RF adapters for uncompromising performance in high-frequency and microwave applications. Manufactured under ISO 9001-certified processes, fully RoHS and REACH compliant, and offering cost-effective alternatives to leading brands. Customization for materials, plating, and mechanical design is available to meet specialized interconnect requirements.
