Pin header, a type of connector, English name: Pin Header. This type of connector is widely used in PCB circuit boards in electronics, electrical appliances, and meters. Its function is to function as a bridge between blocked or isolated circuits in the circuit, and is responsible for current or signal transmission. task. It is usually used in conjunction with the motherboard to form a board-to-board connection; or used in conjunction with an electronic harness terminal to form a board-to-wire connection; it can also be used independently for board-to-board connection. Since the specifications required for different products are not the same, the pin headers are also available in various models. According to the electronic industry's pin header standard classification: according to the spacing can be roughly divided into 2.54mm, 2.00mm, 1.27mm, 1.00mm, 0.8mm five types according to the number of rows of single-row needle, double-row needle, three-row needle, etc.;

According to the package usage, there are patches SMT (bed/post), plug-in DIP (inline/bend).

According to the installation method: 180° is represented by S, 90° is represented by W, and SMT is represented by T.

Rows: single row, double row, three rows, four rows, up to four rows. Number of stitches: 02to80 stitches: straight foot, bent foot, SMT; needle size.

Dimensions: Dimensions, length, width, thickness, and row spacing. Spacing: 0.8, 1.0, 1.27, 2.0, 2.54 pitch.

Material: refers to the contact material and surface treatment, insulator material.

Packing: blister pack, roll bag, bulk.

Material: pin material, brass or phosphor bronze.

Insulator material: plastic UL94V-0.

Surface treatment: gold plated 0.8u, tin plated, nickel plated.

Processing technology: The main process of pin header processing is to first process the pins with brass (or phosphor bronze) according to requirements, and then nickel plating and gold plating as required, then use the mold to process the insulator part, and finally press on the special equipment. Dimensions require the pins to be mounted on the insulator.

Remarks: There are many factors affecting the price, and the most affected ones are gold plating and needle length.

Example of pin header parameters: single row and double row, straight needle and curved needle, the stitch spacing is 2.54mm and 3.96mm, a variety of stitch lengths.

Pin header applications: data processing, computers, program control devices, electronic measuring devices, automatic control, automation, communications.