Banana Connectors

Banana Connectors are a type of connector used in creating and testing electrical connections. They are used for joining wire to electrical test equipment or electrical circuit boards. Banana connectors are sometimes referred to as 4 mm connectors as these are a common size. Banana connectors are a popular type of connector as they are used universally and provide an easy way to create high-quality connections.

Banana connectors feature a metal contact, such as gold-plated brass. The connector comes with a plastic housing available in a wide range of colours, such as red, black, green and yellow. We offer a variety of banana connectors such as banana plugs, banana sockets and banana couplers.

Types of Banana Connector:

  • Banana plugs are small cylindrical plugs that have a very distinctive bulged prong. This bulge houses a spring that, when inserted into a socket, presses outwards to ensure a solid and secure connection. The plug takes its name from the shape of this prong, which reminds many people of a straightened out banana.
    Banana plugs are the alternative to using bare wire when connecting your speakers to your surround receiver, you can connect them with no screwdriver Banana plugs give you a permanent and high-quality connection. The term banana plug or banana jack refers to the 4mm version. The 3mm and 2mm variations are both called “mini-bananas”, but they cannot be used interchangeably. Banana plugs and jacks also come in different safety variations. You can find out more in our complete guide to banana plugs
  • Banana sockets are the female connector. A banana connector (commonly banana plug for the male, banana socket or banana jack for the female) is a single-wire (one conductor) electrical connector used for joining wires to equipment.
  • Banana couplers allow you to extend an existing wire or when you’re running a new installation, they help to join two pieces of wire. Work by connecting two banana plugs into a sleeve that connects both ends to provide a secure and high performance connection.

Shrouded vs. Unshrouded Banana Plugs

Banana test plugs may be shrouded, unshrounded or with a retractable. Unshrouded banana plugs are a common type. Using a shrouded banana plug is essential when working with high-voltage circuits. The shrouding provides a protective cover to prevent accidental contact.


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Description Price Colour Gender Termination Method Voltage Rating Current Rating Contact Plating Spring Contact Length Contact Material Type Connector Size Insulation Material Priced to Clear
RS Stock No. 423-201
BrandRS PRO
£1.872
Each (In a Pack of 5)
Units
Black Female Solder 50V dc 16A Nickel - 52.9mm Brass Test Connector 4 mm POM -
RS Stock No. 423-239
BrandRS PRO
£2.148
Each (In a Pack of 5)
Units
Red Female Solder 50V dc 16A Nickel - 52.9mm Brass Test Connector 4 mm POM -
RS Stock No. 103-7637
BrandRS PRO
£1.263
Each (In a Pack of 10)
Units
Red Male Solder 50V 10A Nickel Yes - Stainless Steel Banana Plug 4 mm - -
RS Stock No. 454-277
BrandRS PRO
£2.436
Each (In a Pack of 5)
Units
Red Male Solder 1000V 10A Tin - - Brass Banana Plug 4 mm PP -
RS Stock No. 454-283
BrandRS PRO
£15.25
1 Pack of 5
Pack(s)
Black Male Solder 1000V 10A Tin - - Brass Banana Plug 4 mm PP -
RS Stock No. 103-7621
BrandRS PRO
£1.259
Each (In a Pack of 10)
Units
Black Male Solder 50V 10A Nickel Yes - Stainless Steel Banana Plug 4 mm - -
RS Stock No. 423-223
BrandRS PRO
£2.024
Each (In a Pack of 5)
Units
Green Female Solder 50V dc 16A Nickel - 52.9mm Brass Test Connector 4 mm POM -
RS Stock No. 465-621
BrandRS PRO
£2.318
Each (In a Pack of 5)
Units
Red Male Solder 1000V 10A Nickel Yes - Brass Banana Plug 4 mm Polyamide -
RS Stock No. 465-615
BrandRS PRO
£2.318
Each (In a Pack of 5)
Units
Black Male Solder 1000V 10A Nickel Yes - Brass Banana Plug 4 mm Polyamide -
RS Stock No. 454-306
BrandRS PRO
£2.686
Each (In a Pack of 5)
Units
Green Male Solder 1000V 10A Tin - - Brass Banana Plug 4 mm PP -
RS Stock No. 423-245
BrandRS PRO
£2.09
Each (In a Pack of 5)
Units
Yellow Female Solder 50V dc 16A Nickel - 52.9mm Brass Test Connector 4 mm POM -
RS Stock No. 423-251
BrandRS PRO
£1.914
Each (In a Pack of 5)
Units
White Female Solder 50V dc 16A Nickel - 52.9mm Brass Test Connector 4 mm POM -
RS Stock No. 423-3119
BrandRS PRO
£7.91
Each
Units
Black Male - 45 V ac, 60V dc 36A - - - - Banana Plug 4 mm - -
RS Stock No. 454-299
BrandRS PRO
£2.956
Each (In a Pack of 5)
Units
Blue Male Solder 1000V 10A Tin - - Brass Banana Plug 4 mm PP -
RS Stock No. 454-328
BrandRS PRO
£2.992
Each (In a Pack of 5)
Units
Yellow Male Solder 1000V 10A Tin - - Brass Banana Plug 4 mm PP -
RS Stock No. 454-312
BrandRS PRO
£11.20
1 Pack of 5
Pack(s)
White Male Solder 1000V 10A Tin - - Brass Banana Plug 4 mm PP -
RS Stock No. 261-5064
BrandRS PRO
£0.281
Each (In a Bag of 10)
Units
Red/Black - - - - - - 4mm - Banana Plug - - -
RS Stock No. 103-6511
BrandRS PRO
£1.384
Each (In a Pack of 5)
Units
Red Female - 50V 10A Silver - 23.3mm Brass Test Connector 4 mm Acetal -
RS Stock No. 423-3125
BrandRS PRO
£7.91
Each
Units
Red Male - 45 V ac, 60V dc 36A - - - - Banana Plug 4 mm - -
RS Stock No. 423-447
BrandRS PRO
£2.998
Each (In a Pack of 5)
Units
Brown Female Solder 50V dc 16A Nickel - 52.9mm Brass Test Connector 4 mm POM -