PIN Headers

PIN Headers are a type of connector used in embedded applications for multiple purposes. They may be used to connect a base development board to a shield, ribbon cable may be used to bridge two PCBs, alternatively, they can be broken up to form a jumper strip.

Depending on the type bought they may have a pitch of 2.54mm or 2.1 mm and be gold or silver plated.

Headers are available in SIL (Single in Line) and DIL (Dual In Line) configurations as either male (plug) or female (socket) connectors. As noted on many development boards, the base usually hosts the socket and the shield hosts the plug connectors. Once interconnected, a secure electrical connection is achieved.

These types of connectors are not intended to be connected and disconnected repeatedly. Repeated connection and disconnection often result in a loosening of the connection owing to wear.

The diagram below depicts the pitch, and it's a standard 2.54mm between pins. Where there is an SIL arrangement, the pitch is consistently 2.54mm between pins much the same as would be found on veroboard.

The Plug Pin Header is available in breakable strips, which enables you to count off how many you need and then break it off at that point. The Plug header is available in Right angle SIL or DIL strips and these are ideal for the connection needs to be directed off-board.

The same configuration is in place for the socket and this ensures compatibility between different shields and modules that may be connected or need to connect to your application.

You may obtain socket headers that are breakable or able to separate the same way as the plug headers are. However, this type tends to be weak and it's easy for the segments to separate unexpectedly through repeated use. It is better to purchase socket headers in the right size needed, and they are available in various pinouts to facilitate this.



PIN Headers are a versatile way of creating secure connections between PCBs and modules.