Key Specifications
Type Design:
Standard
Connection Type:
Between Series
Connector 1 Series:
TNC
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
SMB
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:
Snap-On
Frequency, Max (GHz):
4.0
Connector 1 Body Material:
Brass
Connector 1 Body Plating:
Copper-Tin-Zinc Alloy
Connector 2 Body Material:
Brass
Connector 2 Body Plating:
Copper-Tin-Zinc Alloy
VSWR, Max:
1.35
Description
SMB Plug (Male) to TNC Jack (Female) | Straight Adapter | Snap-On & Screw-Lock | Brass Body
The ROSNOL AD-S1T25A/944-94 is a high-quality RF adapter for DC to 4 GHz with 50 Ω impedance. It offers VSWR ≤ 1.35 and insertion loss ≤ 0.05√F (GHz) dB, ensuring low reflection and excellent return loss. Insulation resistance is ≥1 GΩ, and the adapter supports ≥500 mating cycles on both sides. Coupling mechanisms include snap-on for SMB and screw-lock for TNC, with center contact captivation ≥10 N for SMB and ≥15 N for TNC.Center contacts are beryllium copper with 3 microinch gold plating over an 80 microinch nickel-phosphorus underplating. Bodies and coupling nuts are brass with copper-tin-zinc alloy finish, and insulators are PTFE. Recommended torque for the TNC side is 0.46–0.69 Nm. The operating temperature range spans −65°C to +165°C, providing durability under demanding conditions.
ROSNOL’s RF adapters combine precision engineering with robust mechanical design, delivering superior performance for high-frequency applications. They offer excellent electrical characteristics, long service life, and competitive pricing, making them an ideal alternative to leading European and American brands. Manufactured in ISO 9001-certified facilities and fully compliant with RoHS and REACH standards, ROSNOL also provides customization for plating, materials, and mechanical design to meet unique customer requirements.
