When testing mobile phone cameras, professional connection continuity test modules are required. At present, some manufacturers choose pogo pin, but they do not know that with the increasing number of mobile phone cameras, the internal space is becoming more and more dense. The limitations of pogo pin itself lead to no advantage in the performance test of mobile phone camera heads. Kaizhitong has made continuous technical innovation against the defects of pogo pin, The blade pin shrapnel microneedle module researched and developed can not only meet the needs of the small pitch field, but also has a much longer service life than the probe module, which can effectively reduce costs for enterprises.
01Pogo pin's deficiencies in camera test
The composition and structure of pogo pin is relatively complex, which is composed of spring, needle head, needle tube and needle tail. The surface is covered with gold plating. The cost is relatively high, and the production process is relatively complex.
The rated voltage that the pogo pin can pass is only 1A. Due to the complex internal structure, the current may attenuate at different parts, resulting in inaccurate test results.
The service life of the pogo pin has been tested to be about 5w times, so it cannot meet the requirements of high frequency testing, and it has been replaced frequently.
The pogo pin can cope with a pitch value of 0.3mm-0.4mm. In small pitches, the life and stability are poor, and pin jamming and pin breakage may occur, which is not conducive to the stability of the connection.
Advantages of 02blade pin in camera test
The blade pin is an integrated forming structure, which is made of nickel alloy/beryllium copper material by laser equipment and special process, and is later hard plated with gold.
The blade pin test module adopts a positioning pin+screw structure, which is easy to disassemble. The elastic pieces have a variety of head types, and can be customized according to the shape of the connector.
The maximum voltage that the blade pin can pass is 50A. In the conduction range, the current flows in the same material. The current transmission is stable and the over-current capacity is strong, which can meet the test requirements of mobile phone cameras.
The blade pin can be taken in a wide range, usually between 0.15 mm and 0.4 mm, and has a stable and reliable solution.
The average service life of blade pin is more than 20w times, and it can reach 50w times under good operation, environment and maintenance. It is a long-life module.