Operation Theory

Posted in MLC Series

When overvoltage exceeds the breakdown voltage of MLV, the resistance value of MLV will rapidly decrease (from 109 Ω to 3~5 Ω), to lead the current to the ground through the MLV and the current away from the systems. The overvoltage will be clamping immediately so that the system circuit will be protected from damaging by transient events.

MLC Specification

  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage (8/20us)
    Symbol DC V(1mA) V A
    SFI0402ML080C-LF
    SFI0402ML120C-LF
    SFI0402ML150C-LF
    SFI0402ML180C-LF
    SFI0402ML220C-LF
    SFI0402ML240C-LF
    SFI0402ML270C-LF
    SFI0402ML330C-LF
    SFI0402ML390C-LF
    5.5
    9
    11
    14
    16.5
    18
    22
    26
    30
    8
    12
    15
    18
    22
    24
    27
    33
    39
    <20
    <24
    <25
    <35
    <40
    <40
    <45
    <54
    <65
    20A
    20A
    20A
    20A
    15A
    15A
    20A
    20A
    20A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage (8/20us)
    Symbol DC V(1mA) V A
    SFI0603ML080C-LF
    SFI0603ML120C-LF
    SFI0603ML150C-LF
    SFI0603ML180C-LF
    SFI0603ML240C-LF
    SFI0603ML270C-LF
    SFI0603ML330C-LF
    SFI0603ML390C-LF
    SFI0603ML470C-LF
    SFI0603ML560C-LF
    5.5
    9
    11
    14
    18
    22
    26
    30
    38
    45
    8
    12
    15
    18
    24
    27
    33
    39
    47
    56
    <20
    <24
    <25
    <30
    <39
    <44
    <54
    <65
    <77
    <90
    30A
    30A
    30A
    30A
    30A
    30A
    30A
    30A
    30A
    80A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage (8/20us)
    Symbol DC V(1mA) V A
    SFI0805ML050C-LF
    SFI0805ML080C-LF
    SFI0805ML120C-LF
    SFI0805ML150C-LF
    SFI0805ML180C-LF
    SFI0805ML240C-LF
    SFI0805ML270C-LF
    SFI0805ML330C-LF
    SFI0805ML390C-LF
    SFI0805ML470C-LF
    SFI0805ML560C-LF
    3.3
    5.5
    9
    11
    14
    18
    22
    26
    30
    38
    45
    5
    8
    12
    15
    18
    24
    27
    33
    39
    47
    56
    <12
    <20
    <24
    <25
    <30
    <39
    <44
    <54
    <65
    <77
    <90
    60A
    80A
    80A
    100A
    100A
    100A
    100A
    100A
    100A
    100A
    80A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage (8/20us)
    Symbol DC V(1mA) V A
    SFI1206ML080C-LF
    SFI1206ML101C-LF
    SFI1206ML120C-LF
    SFI1206ML150C-LF
    SFI1206ML180C-LF
    SFI1206ML240C-LF
    SFI1206ML270C-LF
    SFI1206ML330C-LF
    SFI1206ML390C-LF
    SFI1206ML470C-LF
    SFI1206ML560C-LF
    SFI1206ML680C-LF
    SFI1206ML820C-LF
    5.5
    85
    9
    11
    14
    18
    22
    26
    30
    38
    45
    56
    65
    8
    100
    12
    15
    18
    24
    27
    33
    39
    47
    56
    68
    82
    <20
    <165
    <24
    <25
    <30
    <38
    <44
    <54
    <65
    <77
    <90
    <110
    <135
    100A
    100A
    100A
    100A
    100A
    100A
    100A
    100A
    100A
    100A
    100A
    100A
    100A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage (8/20us)
    Symbol DC V(1mA) V A
    SFI1210ML080C-LF
    SFI1210ML150C-LF
    SFI1210ML180C-LF
    SFI1210ML240C-LF
    SFI1210ML270C-LF
    SFI1210ML330C-LF
    SFI1210ML390C-LF
    SFI1210ML470C-LF
    SFI1210ML560C-LF
    SFI1210ML680C-LF
    SFI1210ML820C-LF
    SFI1210ML101C-LF
    SFI1210ML121C-LF
    5.5
    11
    14
    18
    22
    26
    30
    38
    45
    56
    65
    85
    100
    8
    15
    18
    24
    27
    33
    39
    47
    56
    68
    82
    100
    120
    <20
    <25
    <30
    <38
    <44
    <54
    <65
    <77
    <90
    <110
    <135
    <165
    <200
    250A
    250A
    250A
    250A
    250A
    250A
    250A
    250A
    250A
    250A
    250A
    200A
    200A
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Surge Voltage (8/20us)
    Symbol DC V(1mA) V A
    SFI2220ML180C-LF
    SFI2220ML240C-LF
    SFI2220ML330C-LF
    SFI2220ML390C-LF
    SFI2220ML470C-LF
    SFI2220ML680C-LF
    14
    18
    26
    30
    38
    56
    18
    24
    33
    39
    47
    68
    <30
    <38
    <54
    <65
    <77
    <110
    1000A
    1000A
    1000A
    1000A
    1000A
    1000A
  • 0402
  • 0603
  • 0805
  • 1206
  • 1210
  • 2220