Standard

Posted in SEA Series

Surge waveform 8/20μs (The standard IEC61000-4-5 open circuit waveform is 1.2/50μs and the short circuit waveform is 8/20μs)

Parameters

Posted in SEA Series

Parameter Unit Description (Definition)
Working Voltage V(max) Maximum continuous working voltage: within working temperature, the max. AC volt (RMS) loaded at both ends of component or DC voltage.
Breakdown Voltage V(1mA) At current (1mA), the terminal voltage of component, known as breakdown voltage.
Clamping Voltage V(1A) Loaded with standard current at waveform 8/20us, the maximum voltage of both ends
Non-linear Coefficient (α)   To meet with I-V curve, I1 & I2, V1 & V2, α= log I2/ I1/ logV2/ V1.
Leakage current uA To measure the leakage current at max. continuous working voltage.
Capacitance pF The existed capacitance of component (Typical)
Response Time ns Time for component operation
Operation Ambient Temperature The operating temperature at normal
Storage Temperature The storage temperature for general product

Dimension

Posted in SEA Series

Model 0603 Series 0805 Series
Length(L) 1.60±0.15mm 2.00±0.15mm
Width(W) 0.80±0.10mm 1.20±0.10mm
Thickness(T) 0.90mm Max 0.90mm Max
Termination(a) 0.3±0.1mm 0.3±0.1mm

Operation Theory

Posted in SEA Series

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

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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