Straight 50Ω RF Adapter SMA Plug to BNC Socket 4GHz

  • RS Stock No. 878-2378
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): TW
Product Details

RS 50 Ohm SMA to BNC RF Coaxial Interseries Adapters

From RS PRO, this flanged adapter connects an SMA socket connector to an BNC type coaxial connector. With a nickel-plated brass body, this inter-series adaptor converts different connector styles while maintaining impedance.

This robust and reliable adapter has a mechanical interface according to MIL-STD-348A, and so it suitable for Department of Defense approved equipment and applications.

With excellent performance characteristics, this feedthrough SMA to BNC connector can easily couple corresponding cable assemblies.

• Stock number 878-2371 is a 50 Ohm SMA receptacle to BNC plug RF coax adapter
• Stock number 878-2378 is a 50 Ohm SMA plug to BNC receptacle RF coax adapter

Features and Benefits

• SMA-BNC RF Connector
• Gold contact plating for excellent signal connectivity
• Robust nickel-plated brass body


The SMA, or Subminiature A connector, are used in radio frequency applications up to 18 GHz, and are typically found in wi-fi systems. The BNC connector is typically used in lower frequency and power applications and is commonly used in analogue signal applications such as pre-digital television broadcasts and laboratory test equipment. This inter-series adapter allows interfacing between both types of connector and is often used in laboratory conditions or for testing and evaluating products.


RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards; they’re only given the RS PRO Seal of Approval if we’re confident of their exceptional quality, which means you can be confident too.

Our range of connectors contains plugs, sockets and tool solutions to suit any installation.

Attribute Value
Adapter Type SMA Plug to BNC Jack
Adapter Type A SMA
Adapter Type B BNC
Gender A Male
Gender B Female
Impedance 50Ω
Body Orientation Straight
Operating Frequency 4GHz
Contact Plating Gold
Length 27.6mm
Body Plating Nickel
Contact Material Brass
675 In stock for delivery within 5 working day(s) (Global Stock)
Price (ex. GST) Each
$ 14.48
(exc. GST)
$ 15.93
(inc. GST)
Per unit
1 - 49
50 - 99
100 - 249
250 - 499
500 +
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