source:Industry News release time:2021-03-15 Article author:sznbone Popular:POGO PIN
As we all know, pogopin connectors have many commonly used parameters in the design, and each parameter is particularly important for the design, so how do we understand it?
1. Low voltage contact resistance
The supply voltage and current will not change the size of the physical contact surface and the oxide and film of the contact surface to evaluate the contact resistance of the contact system. The test is for a higher current of 100mA and a higher open circuit voltage of 20mV.
2. Insulation resistance
When the DC potential is supplied between adjacent contact points or between the metals closest to the contact point, the resistance of the insulating substance is detected.
3. Withstand voltage
When the system voltage suddenly increases or the instantaneous excess potential is generated due to switching, the connector can maintain the voltage that can be maintained without damage.
4. Positive force
The contact system is under normal use conditions, the contact point bears the pressure perpendicular to the contact surface, and the working point of the pogo pin connector exceeds 60gf.
5. Durability
Since the contact surface will wear out during plugging and unplugging, this wear will reduce the mechanical and electrical performance of the connector. Under the set environment, the connector plugging and unplugging is a cycle. The smallest plugging and unplugging that can be undertaken with the pogo pin connector The number of cycles is used to evaluate the durability of the connector, and the plug-in cycle rate that the pogo pin connector can bear can reach tens of thousands of times.
7. Vibration
Evaluate the influence of small changes on the contact surface caused by the action of mechanical force on the electrical characteristics of the contact system. Pogo pin connector 15 minutes 10～500HZ vibration frequency, 1.2mm amplitude, power failure will not exceed 1μsec, contact impedance <100mOhm.
8. Mechanical shock
Detect the mechanical and electrical integrity of the connector. When the connector device acts on an electronic device, it may be subjected to vibration during handling and transportation.
9. Hot and cold shock
Detect the resistance when pogo pin connector is exposed to extremely high temperature and low temperature, or the worst-case shock during storage, transportation and use.
10. Temperature life
When exposed to a high temperature environment where the mechanical properties fail due to temperature changes, evaluate the impact of this environment on electrical stability. High temperature will cause contact oxidation and reduce the positive force of the terminal, which will reduce the electrical performance.
11. Temperature and humidity cycle
Evaluate the impact of this environment on the electrical stability of the contact system when exposed to an environment that generates high temperature/humidity and makes mechanical properties fail. These effects include moisture accelerating the oxidation of the contact surface, the oxidation of tiny particles between the contact surfaces, and the oxidation of the underlying metal.
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