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DC Barrel Jack to 2-Pin Terminal Block Adapter

Pololu item #: 2449
Brand: Generic

Price break	Unit price (US$)
1	1.95
10	1.75
100	1.55

Quantity:

This connector adapts a 5.5 × 2.1 mm DC barrel jack to a pair of screw terminals spaced approximately 5 mm (0.2″) apart. The terminals are labeled positive and negative, with the positive terminal connected to the center pin.

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Most sources refer to this style of connector as “female”, but since it has a center pin, some will refer to it as “male”. Please look at the product photos carefully to make sure this is the connector you are looking for. This connector is compatible with our DC barrel plug to 2-pin terminal block adapter and our wall power adapters that are terminated with 5.5 × 2.1 mm barrel plugs.

Note: The positive and negative markings on the terminal block side correspond to a center-positive barrel jack (the side labeled “+” connects to the center pin of the barrel jack and the side labeled “-” connects to the outer portion); you can flip the connections to make a center-negative jack.