Key Specifications
Type Design:
Standard
Connection Type:
In-Series
Connector 1 Series:
7/16
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
7/16
Connector 2 Gender:
Jack (Female)
Impedance (Ohm):
50
Body Style:
Straight
Panel Mount:
Bulkhead
Connector 1 Connection Method:
Threaded (Screw-lock)
Connector 2 Connection Method:
Threaded (Screw-lock)
Frequency, Max (GHz):
7.5
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:
1.22
Description
7/16 Jack (Female) to 7/16 Jack (Female) | Bulkhead Adapter | Screw-Lock | Brass Body
The ROSNOL AD-D2D25A-BH/H4-H4 is a high-power bulkhead adapter designed for 50 Ω systems operating from DC to 7.5 GHz. It achieves VSWR ≤ 1.22, insertion loss ≤ 0.05 × √f (GHz) dB, insulation resistance ≥ 10 GΩ, and contact resistance of ≤ 0.4 mΩ for the center and ≤ 1.5 mΩ for the outer contact. Rated for a working voltage of 500 V rms and power handling up to 1800 W at 1 GHz and 800 W at 4 GHz, this adapter ensures secure connectivity with a screw-lock coupling mechanism. RF leakage is ≥ 128 dB up to 1 GHz, and mechanical durability includes ≥ 500 mating cycles, axial captivation ≥ 200 N, and recommended torque between 25 and 30 Nm.Materials and plating: center contacts are phosphor bronze with gold plating (3 µinch) over a non-magnetic nickel-phosphorus underplate (80 µinch). The body, fastening nut, and washer are brass with copper-tin-zinc alloy plating for corrosion resistance, while the insulator is PTFE for excellent dielectric stability. A silicone rubber gasket provides environmental sealing. Operating temperature range is −65°C to +165°C, with IP68 protection when mated.
ROSNOL’s precision-engineered RF adapters deliver reliable performance across 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. Customization services for materials, plating, and mechanical design are available to support specialized interconnect requirements.