Key Specifications
Type Design:
Standard
Connection Type:
Between Series
Connector 1 Series:
BNC
Connector 1 Gender:
Plug (Male)
Connector 2 Series:
TNC
Connector 2 Gender:
Jack (Female)
Impedance (Ohm):
50
Body Style:
Straight
Panel Mount:
None
Connector 1 Connection Method:
Bayonet
Connector 2 Connection Method:
Threaded (Screw-lock)
Frequency, Max (GHz):
4.0
Connector 1 Body Material:
Brass
Connector 1 Body Plating:
Nickel
Connector 2 Body Material:
Brass
Connector 2 Body Plating:
Nickel
VSWR, Max:
1.35
Description
BNC Plug (Male) to TNC Jack (Female) | Straight Design | Bayonet-Lock & Screw-Lock | Brass Body
The ROSNOL AD-B1T25A/H33-H3 is a precision RF adapter for 50 Ω systems, operating from DC to 4 GHz with VSWR ≤ 1.35 (≥16.54 dB return loss) and insertion loss ≤0.05 × √F (GHz) dB. Rated for 1500 Vrms test voltage, 400 Vrms working voltage, and power handling up to 80 W at 2 GHz under VSWR 1.0. Coupling combines bayonet-lock on the BNC side and screw-lock on the TNC side for secure engagement. Mechanical endurance ≥500 mating cycles; axial contact captivation ≥15 N; recommended torque 0.46–0.69 N·m on TNC side.Materials and plating: center contacts are phosphor bronze with 3 µin gold plating over 80 µin nickel-phosphorus underplating. Bodies and coupling nuts are brass with nickel plating; insulators are PTFE; gaskets are silicone rubber. Operating temperature range −65 °C to +165 °C ensures durability and corrosion resistance.
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.
