Standard Classification of Pin Header Connectors

Pin header, a kind of connector, English name: Pin Header. Pin headers are generally widely used in the connection of PCB boards and have the reputation of universal connectors. Generally, there are headers, wire ends and other connectors that are paired with it. With the competition in the pin header connector market, some manufacturers now start with electroplating (imitation gold) and materials (green clad steel, alloy, etc.) to reduce costs, but they also reduce the service characteristics and life of the product.

This kind 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. Usually used with female headers to form a board-to-board connection; or used with electronic wiring harness terminals to form a board-to-wire connection; it can also be used independently for board-to-board connection.

Since the specifications required by different products are not the same, there are also a variety of models and specifications for pin headers, which are classified according to the standard of pin header connectors in the electronics industry:

According to the spacing, 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 needles, double-row needles, three-row needles, etc.; according to the packaging method, there are SMT (horizontal stickers) /Vertical paste), plug-in DIP (straight plug/curved plug), etc.; according to the installation method: 180° is represented by S, 90° is represented by W, and SMT is represented by T.

Number of rows: single row, double row, three rows, four rows, Z is mostly four rows.

Number of needles: 02to80

Pins: straight, bent, SMT; pin size.

Dimensions: overall dimensions length, width, thickness, row spacing.

Pitch: There are 0.8, 1.0, 1.27, 2.0, 2.54 pitches.

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

Packing: blister pack, roll bag, bulk pack.

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 processing process of the pin header is as follows: first process the pins with brass (or phosphor bronze) as required, and plate nickel and then gold as required, and then use the mold to process the insulator part, and then use the special equipment. According to the size requirements, insert the pins on the insulator.

Remarks: There are many factors that affect the price, usually the ones that affect Z are gold-plated, needle length, etc.

Features: single row and double row, straight needle and curved needle, the pin pitch is 2.54mm and 3.96mm, and various pin lengths.

Pin header application

●Data processing

●Computer

●Program control equipment

●Electronic measuring equipment

●Automatic control

●Automation

●Communication

The cross-section of the rectangular pin is 0.8×1.6mm, and the load current is 7.5A. The jack has at least two independent shrapnels and four contact points, and the jack structure can prevent mis-insertion. The cross-section of 254/I series square pin is 0.64×0.64mm. The above two kinds of pins are designed with obtuse corners and can be used in high-frequency technology fields. The pinhole contact part is gold-plated, anti-corrosion, low contact resistance and high reliability.