Basic performance and application standard of conductive pin connector.vintage thimbles Wholesale

　　The basic performance of conductive pin connectors can be divided into three categories: mechanical performance, electrical performance and environmental performance. Another important mechanical property is the mechanical life of the connector. Mechanical life is actually a durability indicator, which is called mechanical operation in the national standard GB5095. It takes one insertion and one withdrawal as a cycle, and whether the conductive pin connector can normally complete its connection function (such as contact resistance value) after the specified insertion and removal cycle is used as the judgement basis.

　　1. Mechanical performance As far as the connection function is concerned, the insertion and extraction force is an important mechanical performance. Insertion and extraction force is divided into insertion force and extraction force (extraction force is also called separation force), the requirements of the two are different. There are provisions for maximum insertion force and minimum separation force in the relevant standards, which shows that from the point of view of use, the insertion force should be small (there are low insertion force LIF and no insertion force ZIF structure), and if the separation force is too small, It will affect the reliability of the contact.

　　2. The insertion and extraction force and mechanical life of the conductive pin connector are related to the contact structure (positive pressure), the coating quality of the contact part (the sliding friction coefficient) and the dimensional accuracy of the contact arrangement (alignment).

　　2. Electrical properties The main electrical properties of conductive field connectors include contact resistance, insulation resistance and dielectric strength.

　　① Electrically conductive connectors with high contact resistance should have low and stable contact resistance. The contact resistance of the conductive field conductive pin connector ranges from a few milliohms to tens of milliohms.

　　②Insulation resistance is a measure of the insulation performance between the contacts of the electrical charging pin connector and between the contacts and the shell, and its magnitude ranges from hundreds of megohms to several thousand megohms.

　　③ Dielectric strength, or withstand voltage, dielectric withstand voltage, is a characterization of the ability to withstand the rated test voltage between the contacts of the charging external pin connector or between the contacts and the shell.

　　④Other electrical properties.

　　Electromagnetic interference leakage attenuation is to evaluate the electromagnetic interference shielding effect of the connector, and the electromagnetic interference leakage attenuation is to evaluate the electromagnetic interference shielding effect of the charging pin connector. It is generally tested in the frequency range of 100MHz~10GHz.

　　For radio frequency coaxial charging pin connectors, there are also electrical indicators such as characteristic impedance, insertion loss, reflection coefficient, and voltage standing wave ratio (VSWR). Due to the development of digital technology, in order to connect and transmit high-speed digital pulse signals, a new type of connector, namely high-speed signal conductive pin connector, has appeared. Accordingly, in terms of electrical performance, in addition to characteristic impedance, some new ones have appeared. Electrical indicators, such as crosstalk, delay, skew, etc.

　　3. Environmental performance Common environmental performance includes temperature resistance, humidity resistance, salt spray resistance, vibration and shock resistance.

　　①Temperature resistance At present, the maximum working temperature of the charging pin connector is 200°C (except for a few high-temperature special connectors), and the minimum temperature is -65°C. As the conductive pin connector is working, the current generates heat at the contact point, resulting in a temperature rise, so it is generally believed that the working temperature should be equal to the sum of the ambient temperature and the temperature rise of the contact point. In some specifications, the maximum temperature rise allowed by the connector under the rated operating current is clearly specified.

　　②The intrusion of moisture resistance will affect the insulation performance of the connection h and rust metal parts. Constant heat and humidity test conditions are relative humidity 90%~95% (according to product specifications, up to 98%), temperature +125±45°C, test time is as per product specifications, at least 96 hours. The alternating damp heat test is more stringent.

　　③When the salt spray resistant charging pin connector works in an environment containing moisture and salt, the metal structure and contact surface treatment layer may produce electrochemical corrosion, which affects the physical and electrical performance of the charging pin connector. In order to evaluate the ability of electrical connectors to withstand this environment, a salt spray test is specified.

Read recommendations:

M2120 8.0x13.2(3A) Dip Pogo Pin price

M1790 3.0x19.55(1A)

Double-ended spring thimble M483 1 .8X7.3molecular probe company

Electronic cigarette pogopin

Brief description of the function and working principle of Pogo pin