What is a Header and IDC Connector?
IDC stands for Insulation Displacement Connector. Above is a photo of a 2×7 pin header.
This is called a 2×7 because there are 2 rows of 7 pins. Headers can come in many other combinations such as 1×3, 2×10 etc. The job of the pin header is to connect the LCD module to the customer’s PCB (Printed Circuit Board). This can be done in one of two ways.
- Solder the header directly to the customer’s PCB
- Connect the LCD module to the customer’s PCB with an IDC cable. Below is a photo of the IDC connector.
The standard spacing on a header is .1 inch or 2.54mm. This is called pitch. Pitch is the distance between each pin.