Introduction of round hole exhaust bus connector

Round hole bus connector, English name: Pin Header.

This connector is widely used in electronics, electrical appliances, PCB circuit board in appearance, its role is in the circuit is blocked or isolated between the circuit, play the function of bridge, take on the mission of current or signal transmission. It is generally used with the exhaust bus to form a plate-to-plate connection. Or it can be used with the electronic wire harness terminal to form a plate-to-wire connection; It can also be used independently for board to board connection.

Because different products require different specifications, so there are also a variety of specifications, according to the electronic occupation of the needle discharge connector specification classification:

According to the interval, it can be roughly divided into five categories: 2.54mm, 2.00mm, 1.27mm, 1.00mm, 0.8mm. According to the number of rows, there are single row of needles, double row of needles, and three rows of needles. According to the packaging rules have SMT (horizontal paste/vertical paste), plug-in DIP (straight insert/bend insert); According to the device method difference: 180° indicated by S, 90° indicated by W, SMT indicated by T.

Number of rows: single row, double row, three row, four row, maximum four row.

Pin number: 02 to80

Stitching: straight foot, bent foot, SMT; The size of the needle.

Dimension: dimension length, width, thickness, row spacing.

Intervals: 0.8, 1.0, 1.27, 2.0, 2.54 intervals.

Material: refers to the material of touch parts and surface treatment, insulator material.

Packing: in bubble shell, in roll bag, in bulk.

Materials: Needle insertion materials: brass or phosphor bronze; Insulator: Plastic UL94V-0.

Surface treatment: gold plating 0.8U, tin plating, nickel plating.

Processing technology: The main process of needle arrangement processing is: first, the needle insertion is processed with brass (or phosphor bronze) according to the requirements.

And as required, first nickel plating and then gold plating, and then use the mold to process the insulation part, after all, on the special equipment according to the ruler

It is required to insert the pin into the insulator.

Note: there are many factors affecting the price, generally the most influential ones are gold plating, needle length and so on.

Example of needle arrangement parameters

Round hole stitching features: single row and double row, straight needle and bent needle, stitching interval of 2.54mm and 3.96mm, various stitching length.