Key Specifications
Type Design:
Standard
Connection Type:
In-Series
Connector 1 Series:
SMA
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
SMA
Connector 2 Gender:
Plug (Male)
Connector 3 Series (T-Adapter):
SMA
Connector 3 Gender (T-Adapter):
Jack (Female)
Impedance (Ohm):
50
Body Style:
T-Adapter
Panel Mount:
None
Connector 1 Connection Method:
Threaded (Screw-lock)
Connector 2 Connection Method:
Threaded (Screw-lock)
Connector 3 Connection Method:
Threaded (Screw-lock)
Frequency, Max (GHz):
12.4
Connector 1 Body Material:
Brass
Connector 1 Body Plating:
Gold Plating (Non-magnetic nickel-phosphorus underplating)
Connector 2 Body Material:
Brass
Connector 2 Body Plating:
Gold Plating (Non-magnetic nickel-phosphorus underplating)
Connector 3 Body Material:
Brass
Connector 3 Body Plating:
Gold Plating (Non-magnetic nickel-phosphorus underplating)
VSWR, Max:
N/A
Description
SMA Plug (Male) to SMA Jack (Female) to SMA Jack (Female) T-Adapter | Screw-Lock | Brass Body
The ROSNOL ADT-A2A1A25A/91-911-91 is a robust SMA T-adapter featuring one male plug and two female jacks for DC to 12.4 GHz operation at 50 Ω impedance. It provides VSWR ≤1.25, insertion loss ≤0.05√F (GHz) dB, and RF leakage ≥100 dB up to 1 GHz. Electrical parameters include insulation resistance ≤5 mΩ, center contact resistance ≤3 mΩ, and outer contact resistance ≤2 mΩ, with test voltage 1000 V rms and working voltage 480 V rms. Power handling is rated ≤200 W at 2 GHz. The screw-lock coupling mechanism ensures secure engagement with ≥500 mating cycles and recommended torque of 0.8–1.1 Nm.Piece parts include beryllium copper and brass center contacts with gold plating over non-magnetic nickel-phosphorus underplating, brass bodies with gold plating, PTFE insulators, silicone rubber gaskets, and brass coupling nuts with gold plating. These materials deliver corrosion resistance and thermal stability across −65°C to +155°C.
ROSNOL’s precision-engineered RF adapters deliver reliable performance across a wide range of RF and microwave systems. Designed to meet the stringent demands of high-frequency signal transmission, ROSNOL adapters offer a cost-effective alternative to products from leading European and American brands. All ROSNOL RF components are manufactured in ISO 9001-certified facilities and fully comply with RoHS and REACH regulations, ensuring global environmental and safety standards. Customization services for materials, plating, and mechanical design are available to support specialized interconnect requirements.
