pogopin connector application

　　1. Which fields are used in

　　The pogo pin connector is used for the connection between the LCD display and the drive circuit (PCB). Nowadays, 0.4mm pitch products are mainly used, and 0.3mm pitch products have also been widely used. With the recent trend of LCD drivers being incorporated into LCD equipment, the number of pins of FPC will be reduced accordingly, and related products are already available in the market. From a longer-term perspective, in the future, the FPC pogo pin connector will be expected to be combined with other mobile phone components on the frame of the mobile phone or its LCD module.

　　2. Board-to-board pogo pin connector

　　The development trend of board-to-board pogo pin connectors in mobile phones is that the pin distance and height are getting smaller and smaller. At present, the pitch is mainly 0.4mm, and it will gradually develop to 0.35mm or even smaller. The subsequent requirements are lower and shielded Effect. At the same time, the height of the BTB (board-to-board pogo pin connector) has also been gradually reduced to 0.9mm.

　　3. I/O pogo pin connector

　　The I/O pogo pin connector is one of the most important access channels in mobile phones, including the connection between the power supply and the signal. Volume reduction and product standardization will be the main directions for future development. Nowadays, circular and MiniUSB pogo pin connectors are more commonly used. Micro USB pogo pin connectors for mobile phones are increasingly standardized and developed under the promotion of the European Union and the GSM Association. At that time, the mainstream of the market was 5pin, because each mobile phone manufacturer has its own The development trend of Micro USB pogo pin connector is a combination of standardization and customization. At the same time, the earphone plug-in connector has also developed in the same way. In 2012, MicroUSB will be mainly used in foreign countries as the standard interface for charging. Nokia, Moto And mobile phone manufacturers such as SEMC have begun to take substantial steps. Going forward, the connector is required to be thinner, with visual effects and waterproof functions.

　　There are roughly 3 parts for the components of the Pogo pin connector. Needles, springs, needles, needles, and materials are usually selected as Becu or SK. Both have their own advantages and disadvantages. Becu has good conductivity, but lacks hardness, and SK has high hardness, but it is easy to rust. Tension springs are also the most important, SUS SWP, especially PB free products are more and more nowadays, which directly causes the pins or BGA solder balls to become soft or hard. During the test process, it was found that the original yield rate was very high. , After changing the solder ball or pin data, the yield is extremely poor, the selection of spring pressure is very important, the test environment is also very strict on the data requirements of the spring, and the high and low temperature test directly affects the working life of the probe. Needle tube and selected data are more often used PB data

　　4. Cassette pogo pin connector

　　The card-type pogo pin connectors are mainly 6pin SIM card pogo pin connectors and T-flash pogo pin connectors. The future development direction is mainly to improve the shielding function and thickness of the SIM card pogo pin connectors to achieve more The ultra-low thickness of 0.50mm is low, and the card pogo pin connector product is oriented to multi-purpose development. The market has already presented a combination of SIM card pogo pin connector + T-flash pogo pin connector product.

　　5. Battery pogo pin connector

　　Battery pogo pin connectors can be divided into shrapnel type and guillotine type. The technical trends of battery pogo pin connectors are mainly miniaturization, new battery interface, low touch impedance and high connection reliability.

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