Operation Theory

Posted in SHC Series

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

SHC Specification

  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI0805SC240-251A
    SFI0805SC470-251A
    18
    38
    24
    47
    <45
    <85
    250A
    250A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI1206SC120-501A
    SFI1206SC240-501A
    SFI1206SC360-501A
    SFI1206SC470-501A
    SFI1206SC560-102A
    SFI1206SC680-501A
    SFI1206SC680-501A
    SFI1206SC750-501A
    9
    18
    30
    38
    45
    56
    56
    60
    12
    24
    36
    47
    56
    68
    68
    75
    <25
    <45
    <65
    <85
    <90
    <90
    <90
    <100
    500A
    500A
    500A
    500A
    1000A
    500A
    500A
    500A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI1210SC101-401A
    SFI1210SC240-102A
    SFI1210SC470-102A
    SFI1210SC750-102A
    85
    18
    38
    60
    100
    24
    47
    75
    <165
    <45
    <85
    <100
    400A
    1000A
    1000A
    1000A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI1812SC240-202A
    SFI1812CS470-202A
    SFI1812SC560-202A
    SFI1812SC750-202A
    18
    38
    45
    60
    24
    47
    56
    75
    <45
    <85
    <90
    <100
    2000A
    2000A
    2000A
    2000A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI2220SC240-302A
    SFI2220SC470-302A
    SFI2220SC470-452A
    SFI2220SC470-502A
    SFI2220SC470-802A
    SFI2220SC560-302A
    SFI2220SC750-302A
    SFI2220SC750-502A
    SFI2220SC750-502A
    SFI2220SC820-302A
    SFI2220SC820-452A
    18
    38
    38
    38
    38
    45
    60
    60
    60
    65
    65
    24
    47
    47
    47
    47
    56
    75
    75
    75
    82
    82
    <45
    <85
    <85
    <85
    <85
    <90
    <100
    <100
    <100
    <135
    <135
    3000A
    3000A
    4500A
    5000A
    8000A
    3000A
    3000A
    4500A
    5000A
    3000A
    4500A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage(8/20us)
    symbol DC V(1mA) V A
    SFI3220SC240-123A 18 24 <45 12000A
  • 0805
  • 1206
  • 1210
  • 1812
  • 2220
  • 3220