Tamiya connector

A Tamiya connector is a type of DC power connector, commonly used on radio-controlled model vehicle battery packs, drones and chargers.[1] They are also commonly used on airsoft guns.[2] The connector was designed by Japanese manufacturer Tamiya Corporation.

Tamiya connector

Wiring

The usual wiring has the positive (red) wire running to the terminal with a square profile, and the negative (black) wire running to the half-circle, half-square terminal. This is true for both genders of connector. The female sockets are in a male housing and the male pins are in a female housing. The male pins (female housing) connector is usually on the battery side.

In electrical and electronics engineering, the convention is that gender refers to the metal contact parts of a connector in order to avoid ambiguity. A large number of hobbyist retailers selling these connectors refer to the gender of the plastic housing, which is against convention and can lead to errors.

In some cases, Mini-Tamiya connectors are wired in reverse polarity. This is often the case with airsoft guns, where the square profile terminal is the negative terminal and the rounded terminal is the positive terminal.[3]

Sizes

There are two sizes of Tamiya connectors: standard and mini. The outside dimensions of the standard connector is:

  • 13.4mm x 5.4mm x 26.8mm

The outside dimensions of the mini connector is:

  • 9.9mm x 5.4mm x 22mm (about 3/8" x 7/32" x 7/8")

Advantages

A useful feature of the Tamiya connectors is the locking mechanism which prevents accidental disconnection.

The connector physically isolates the positive and negative wires so that the connectors remain safe to use in damp conditions. This makes them safe for use in relatively low-current applications (up to about 15 A) in dirty conditions (for example, model boats or RC cars used outdoors).

See also

References
  1. ElectriFly: Adapters and Connectors shows converter cables for connectors commonly used in the RC community.
  2. "Battery Junction". Battery Junction. Retrieved 2011-06-22.
  3. "Mini-Tamiya Leads - Component-Shop". Component Shop. Retrieved 2014-08-09.
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