Application

Posted in SHV Series

SHV Series- the main application is for surge protection for LED lighting.

Test Standards:
According to the standard IEC61000-4-5, the requirements are 1.20x50us waveform (8x20us waveform) surge wave form, but some countries take different surge waveform as test standard.

Waveform & Impedance:

(1) 1.2x50us and 8x20us (combination)
2 ohm: usually used in power L-N (called line to line)
12 ohm: usually used in power L-N to PE (called line to ground)

1) Line to Ground (L-PE、N-PE ): it is Common Mode.
2) Line to Line (L-NL): it is Differential Mode. Schematic Circuit:

SEA Specification

  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Typical Capacitance Leakage Current ESD Ability
    symbol DC V(1mA) V pF uA KV
    SFI0603EA240-HSP
    SFI0603EA240-MSP
    SFI0603EA240-LSP
    SFI0603EA470-HSP
    SFI0603EA470-LSP
    16
    16
    16
    28
    28
    28~38
    28~38
    28~38
    48~72
    48~72
    <57
    <57
    <57
    <108
    <108
    10
    25
    50
    15
    50
    1.5
    1.5
    1.5
    1.5
    1.5
    25
    25
    25
    25
    25
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Typical Capacitance Leakage Current ESD Ability
    symbol DC V(1mA) V pF uA KV
    SFI0805EA240-LSP 16 28~38 <57 50 1.5 25
  • 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
  • 0603
  • 1812
  • 2220
  • 3220