Season’s Greetings — 2026
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Season’s Greetings — 2026
Wishing you a joyful Christmas and a prosperous New Year.
Thank you for being a valued partner.
STREAMLIED DESIGN DEVELOPMENT

BNC Jack (Female) to BNC Jack (Female) Bulkhead Adapter, DC-4GHz VSWR 1.2

Order No:AD-B2B25A-BH/H4-H4
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Key Specifications

Type Design:
Standard
Connection Type:
In-Series
Connector 1 Series:
BNC
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
BNC
Connector 2 Gender:
Jack (Female)
Impedance (Ohm):
50
Body Style:
Straight
Panel Mount:
Bulkhead
Connector 1 Connection Method:
Bayonet
Connector 2 Connection Method:
Bayonet
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:
1.20

Description

BNC Jack (Female) to BNC Jack (Female) | Bulkhead Adapter | Bayonet-Lock | Brass Body

The ROSNOL AD-B2B25A-BH/H4-H4 is a precision bulkhead adapter designed for 50 Ω systems operating from DC to 4 GHz. It achieves VSWR ≤ 1.20, insertion loss ≤ 0.1 × √f (GHz) dB, insulation resistance ≥ 5 GΩ, and contact resistance of ≤ 1.5 mΩ for the center and ≤ 1 mΩ for the outer contact. Rated for a test voltage of 1500 V rms, working voltage of 400 V rms, and power handling up to 80 W at 2 GHz, this adapter ensures secure connectivity with a bayonet-lock coupling mechanism. Mechanical durability includes ≥ 500 mating cycles and axial captivation ≥ 15 N.

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.

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.