Demand

Posted in SHV Series

Lightning contains two types: direct lightning and indirect lightning. The most damage of networking device is indirect lightning. There are three channels.
1. The side effects of traditional lightning rod produces secondary indirect lightning. The lightning current flows through lightning rod and leads to induction into the inner house.
2. To induce indirect lightning through power lines, signal lines or antenna.
3. The introduction of location cause indirect lightning. Sometimes, the insufficient voltage caused by lightning can not damage the power equipment in one time. Even if there was no failure, it will cause the aging of parts of equipment after overvoltage for many years. It is easy to cause degrading of equipment parts and the old equipment is easier to damage to affect stable performance. The main function of SHV series is for surge protection for power system of LED lighting. Because the LED drivers becomes linear mode from switching mode , the requirements of surge protection will be more than before.

SHV Specification

  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI1210SV241-201A
    SFI1210SV391-201A
    210
    320
    240
    390
    <350
    <647
    200A
    200A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI1812SV471-501A 385 470 <775 500A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI2220SV391-501A
    SFI2220SV391-801A
    SFI2220SV431-501A
    SFI2220SV431-801A
    SFI2220SV471-501A
    SFI2220SV471-801A
    320
    320
    350
    350
    385
    385
    390
    390
    430
    430
    470
    470
    <647
    <647
    <705
    <705
    <775
    <775
    500A
    800A
    500A
    800A
    500A
    800A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI3220SV431-801A
    SFI3220SV471-801A
    350
    385
    430
    470
    <705
    <775
    1000A
    1000A
  • 1210
  • 1812
  • 2220
  • 3220