Operation Theory

Posted in SHN Series

Compared with other protective components, at stand-by state, the SHN 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.

SHN Specification

  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(10/700us)
    symbol DC V(1mA) V KV
    SFI0805SN240-1R5K 18 24 <45 1.5KV
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(10/700us)
    symbol DC V(1mA) V KV
    SFI1206SN120-040K
    SFI1206SN120-060K
    SFI1206SN240-040K
    SFI1206SN120-060K
    9
    9
    12
    12
    12
    12
    24
    24
    <30
    <30
    <35
    <40
    4KV
    6KV
    4KV
    6KV
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(10/700us)
    symbol DC V(1mA) V KV
    SFI1210SN470-040K
    SFI1206SN470-060K
    SFI1206SN750-040K
    SFI1206SN750-060K
    38
    38
    60
    60
    47
    47
    75
    75
    <75
    <75
    <100
    <100
    4KV
    6KV
    4KV
    6KV
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(10/700us)
    symbol DC V(1mA) V KV
    SFI1812SN240-080K
    SFI1812SN750-080K
    18
    60
    24
    75
    <45
    <100
    8KV
    8KV
  • 0805
  • 1206
  • 1210
  • 1812