Operation Theory

Posted in SHV Series

Compared with other protective components, at stand-by state, the SHV series with high impedance (several mega ohms) will not affect the characteristics of circuit design. While an instant surge occurs (over breakdown voltage), the impedance of component becomes low (only a few ohms) to lead the major current through the loop to protect the electronic products or expensive components.

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