Switching power supply, also known as switching power supply, switching converter, is a high-frequency electrical energy conversion device, is a kind of power supply. Because the input of the switching power supply is mostly AC power supply or DC power supply, especially the AC power grid has instability or other harsh environments, it is extremely vulnerable to over voltage and over current caused by lightning surge and other reasons. SOCAY (Brand) Electronics launched one big current lightning surge protection device, which can be used for circuit protection of AC220V switching power supply, and the series use of varistor can improve the service life and protection safety of the device.

The device adopts SMD patch package, which is convenient for patch welding and can save board subspace. Because it uses ceramic as the main tube structure, its parasitic capacitance value is also relatively small, generally less than 1.5PF. The discharge mode of gas discharge, the flow rate can be up to 20KA, so it has the ability to absorb and suppress high energy lightning surge, and the response speed is fast. The device has a DC breakdown voltage of 470V and an arc voltage of 20V under 1A test conditions. It has high environmental adaptability, and the operating temperature range is -40℃-90 ℃.

     SC2E8-470HSMD ceramic gas discharge tube features:
DC breakdown voltage (100V/S) : 470V
Maximum pulse breakdown voltage (1KV/us) : 1000V
Minimum insulation resistance (at 100V) : 1GΩ
Flow rate (8/20uS ±5 times) : 20KA
Maximum interelectrode capacitance (1MHz) : 1.5pF
SC2E8-470HSMD ceramic gas discharge tube application:
Switching power supply
Instrument circuit
Power supply
Cable television equipment

Application: Switching power supply