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Discrete Diodes and Thyristors

Discrete diodes and thyristors for low to high power applications. A wide range of case designs are available in voltage classes from 200V to 8000V and current ratings from 1A to 6000A.

Discretes Benefits

Discrete components are used in a wide variety of applications. Particular benefits are achieved whenever high current, uncommon topologies, natural cooling or resistance to harsh conditions are required. The SEMIKRON portfolio includes axial leaded diodes up to 6A, diodes and thyristors in screw fit (stud) and capsule housings which range from 6000A and 8000V for diodes to 1200A and 1800V for thyristors.

  • Easy assembly
  • Hermetic sealing
  • Rugged construction

Avalanche Diodes

  • No over-voltage suppressors needed
  • Insensitive to short term reverse overloads
  • High blocking voltages possible without static or dynamic voltage sharing circuits

Discretes Key Features

  • Recommended for forced air and water cooling
  • Compact case with high current capability
  • Stud and disc types: forward drop selections available for easy paralleling
  • Axial diodes for PCB mounting
  • Standard and fast types

Discretes Applications

Key applications include welding machines, battery chargers, electroplating, soft starters, DC motor control, AC controllers (e.g. for temperature control), alternators and others. With sealed cases, discrete devices are convenient for both natural convection and forced cooling, allowing for use in wider fields of application. With over 50 years of field experience and millions of units produced every year, the SEMIKRON portfolio provides options that are competitive, flexible and highly reliable.

Discretes Product Range

Discrete diodes and thyristors for low to high power applications are available in voltage classes from 200V to 8000V and current ratings from 1A to 6000A.

Discrete Diodes

  • Products
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  • Product Type
  • Housing
  • VRRM / VDRM in V
  • IF / IT in A
  • IFSM / ITSM in A
  • Technology
  • Product Generation
  • Product Status
  • SK 1
    Leaded Diodes
    1000-1600
    1.45
    60
    Standard recovery
    E33 (D4.5x7)
    In production
  • SKN 2,5
    Leaded Diodes
    400-1600
    2.5
    180
    Standard recovery
    E5 (100D10M4)
    In production new
  • SK 3
    Leaded Diodes
    400-1600
    3
    180
    Standard recovery
    E34 (D6x9)
    In production
  • SKN 5
    Leaded Diodes
    200-1600
    5
    190
    Standard recovery
    E6 (112D18M4)
    In production new
  • SKa1
    Leaded Diodes
    1300-1700
    1
    60
    Avalanche
    E33 (D4.5x7)
    In production
  • SKNa2
    Leaded Diodes
    1300-1700
    2
    180
    Avalanche
    E5 (100D10M4)
    In production new
  • SKa3
    Leaded Diodes
    1300-1700
    3
    180
    Avalanche
    E34 (D6x9)
    In production
  • SKNa4
    Leaded Diodes
    1300-1700
    3.7
    190
    Avalanche
    E6 (112D18M4)
    In production new
  • SKN 20
    Stud Screw Fit Diodes
    400-1600
    20
    375
    Standard recovery
    E9 (130SW11M6)
    In production
  • SKN 26
    Stud Screw Fit Diodes
    400-1600
    25
    375
    Standard recovery
    E8 (21SW11M6)
    In production
  • SKN 45
    Stud Screw Fit Diodes
    400-1600
    45
    700
    Standard recovery
    E12 (135SW17M8)
    In production
  • SKN 70
    Stud Screw Fit Diodes
    400-1600
    70
    1150
    Standard recovery
    E12 (135SW17M8)
    In production
  • SKN 71
    Stud Screw Fit Diodes
    400-1600
    70
    1150
    Standard recovery
    E11 (26SW17M8)
    In production
  • SKN 100
    Stud Screw Fit Diodes
    400-1800
    100
    1750
    Standard recovery
    E13 (165SW24M12)
    In production
  • SKN 130
    Stud Screw Fit Diodes
    400-1800
    130
    2500
    Standard recovery
    E14 (165SW24M12)
    In production
  • SKN 240
    Stud Screw Fit Diodes
    400-1800
    240
    6000
    Standard recovery
    E15 (150SW32M16)
    Not for new designs
  • SKN 320
    Stud Screw Fit Diodes
    400-1600
    320
    9000
    Standard recovery
    E16 (230SW41M24)
    In production
  • SKN 400
    Stud Screw Fit Diodes
    1800-3000
    400
    9000
    Standard recovery
    E17 (230SW41M24)
    In production
  • SKR 20
    Stud Screw Fit Diodes
    400-1600
    20
    375
    Standard recovery
    E9 (130SW11M6)
    In production
  • SKR 26
    Stud Screw Fit Diodes
    400-1600
    25
    375
    Standard recovery
    E8 (21SW11M6)
    In production
  • SKR 45
    Stud Screw Fit Diodes
    400-1600
    45
    700
    Standard recovery
    E12 (135SW17M8)
    In production
  • SKR 70
    Stud Screw Fit Diodes
    400-1600
    70
    1150
    Standard recovery
    E12 (135SW17M8)
    In production
  • SKR 71
    Stud Screw Fit Diodes
    400-1600
    70
    1150
    Standard recovery
    E11 (26SW17M8)
    In production
  • SKR 100
    Stud Screw Fit Diodes
    400-1800
    100
    1750
    Standard recovery
    E13 (165SW24M12)
    In production
  • SKR 130
    Stud Screw Fit Diodes
    400-1800
    130
    2500
    Standard recovery
    E14 (165SW24M12)
    In production
  • SKR 240
    Stud Screw Fit Diodes
    400-1800
    240
    6000
    Standard recovery
    E15 (150SW32M16)
    In production
  • SKR 320
    Stud Screw Fit Diodes
    400-1600
    320
    9000
    Standard recovery
    E16 (230SW41M24)
    In production
  • SKN 94
    Stud Screw Fit Diodes
    200-1200
    96
    2000
    Standard recovery
    E12 (135SW17M8)
    In production
  • SKR 94
    Stud Screw Fit Diodes
    200-1200
    96
    2000
    Standard recovery
    E12 (135SW17M8)
    In production
  • SKN 96
    Stud Screw Fit Diodes
    200-1200
    96
    2000
    Standard recovery
    E10 (25SW17M6)
    In production
  • SKN 152
    Stud Screw Fit Diodes
    200-1200
    152
    4500
    Standard recovery
    DO-8 (112SW27Z3/8)
    In production
  • SKN 262
    Stud Screw Fit Diodes
    2000-2800
    262
    6000
    Standard recovery
    E45 (205SW32M16)
    In production
  • SKR 96
    Stud Screw Fit Diodes
    200-1200
    96
    2000
    Standard recovery
    E10 (25SW17M6)
    In production
  • SKR 152
    Stud Screw Fit Diodes
    200-1200
    152
    4500
    Standard recovery
    DO-8 (112SW27Z3/8)
    In production
  • SKR 262
    Stud Screw Fit Diodes
    2000-2800
    242
    6000
    Standard recovery
    E45 (205SW32M16)
    In production
  • SKN 390
    Stud Screw Fit Diodes
    400-1600
    390
    9000
    Standard recovery
    E15 (150SW32M16)
    In production
  • SKR 390
    Stud Screw Fit Diodes
    400-1600
    390
    9000
    Standard recovery
    E15 (150SW32M16)
    In production
  • SKR 400
    Stud Screw Fit Diodes
    1800-3000
    400
    9000
    Standard recovery
    E17 (230SW41M24)
    In production
  • SKN 300
    Stud Screw Fit Diodes
    400-1600
    300
    540
    Standard recovery
    E15 (150SW32M16)
    In production
  • SKR 300
    Stud Screw Fit Diodes
    400-1600
    300
    540
    Standard recovery
    E15 (150SW32M16)
    In production
  • SKN 2F17
    Stud Screw Fit Diodes
    400-1000
    17
    450
    Fast recovery
    E7 (22SW11M5)
    In production
  • SKN 3F20
    Stud Screw Fit Diodes
    800-1200
    20
    375
    Fast recovery
    E7 (22SW11M5)
    In production
  • SKN 2F50
    Stud Screw Fit Diodes
    400-1000
    50
    1100
    Fast recovery
    E10 (25SW17M6)
    In production
  • SKN 60F
    Stud Screw Fit Diodes
    1200-1700
    60
    1400
    Fast recovery
    E10 (25SW17M6)
    In production
  • SKN 135F
    Stud Screw Fit Diodes
    800-1200
    135
    2500
    Fast recovery
    E14 (165SW24M12)
    In production
  • SKN 136F
    Stud Screw Fit Diodes
    800-1200
    135
    2500
    Fast recovery
    E31 (47SW24M12)
    In production
  • SKN 140F
    Stud Screw Fit Diodes
    1200-1700
    140
    2500
    Fast recovery
    E14 (165SW24M12)
    In production
  • SKN 141F
    Stud Screw Fit Diodes
    1200-1700
    140
    2500
    Fast recovery
    E31 (47SW24M12)
    In production
  • SKR 2F17
    Stud Screw Fit Diodes
    400-1000
    17
    450
    Fast recovery
    E7 (22SW11M5)
    In production
  • SKR 3F20
    Stud Screw Fit Diodes
    800-1200
    20
    375
    Fast recovery
    E7 (22SW11M5)
    In production
  • SKR 2F50
    Stud Screw Fit Diodes
    400-1000
    50
    800
    Fast recovery
    E10 (25SW17M6)
    In production
  • SKR 60F
    Stud Screw Fit Diodes
    1200-1700
    60
    1400
    Fast recovery
    E10 (25SW17M6)
    In production
  • SKR 135F
    Stud Screw Fit Diodes
    800-1200
    135
    2500
    Fast recovery
    E14 (165SW24M12)
    In production
  • SKR 136F
    Stud Screw Fit Diodes
    800-1200
    135
    2500
    Fast recovery
    E31 (47SW24M12)
    In production
  • SKR 140F
    Stud Screw Fit Diodes
    1200-1700
    140
    2500
    Fast recovery
    E14 (165SW24M12)
    In production
  • SKR 141F
    Stud Screw Fit Diodes
    1200-1700
    140
    2500
    Fast recovery
    E31 (47SW24M12)
    In production
  • SKNa 20
    Stud Screw Fit Diodes
    1300-1700
    20
    375
    Avalanche
    E9 (130SW11M6)
    In production
  • SKNa 22
    Stud Screw Fit Diodes
    3600-5000
    25
    450
    Avalanche
    E42 (150SW14M6)
    In production
  • SKNa 47
    Stud Screw Fit Diodes
    3600-5000
    45
    700
    Avalanche
    E43 (160SW17M8)
    In production
  • SKNa 102
    Stud Screw Fit Diodes
    3600-5000
    125
    1900
    Avalanche
    E44 (185SW24M12)
    In production
  • SKNa 202
    Stud Screw Fit Diodes
    3600-5000
    200
    3800
    Avalanche
    E45 (205SW32M16)
    In production
  • SKNa 402
    Stud Screw Fit Diodes
    3600-5000
    400
    7800
    Avalanche
    E46 (250SW41M24)
    In production
  • SKN 6000
    Capsule Diodes
    200-600
    6000
    60000
    Diode
    E35 (D60x8)
    In production
  • SKHE 2000/900-1,2
    HV Axial Screw Diodes
    4800
    1.5
    135
    Diode
    SKHE 1 (L30D24M3)
    In production
  • SKHE 3500/1550-2,0
    HV Axial Screw Diodes
    8000
    2.5
    270
    Diode
    SKHE 2 (L170D12X16M3)
    In production
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Discrete Thyristors

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  • Product Type
  • Housing
  • VRRM / VDRM in V
  • IF / IT in A
  • IFSM / ITSM in A
  • Technology
  • Product Generation
  • Product Status
  • SKT 10
    Stud Screw Fit Thyristor
    600-1200
    10
    210
    Thyristor
    B1 (20SW11M5)
    In production
  • SKT 16
    Stud Screw Fit Thyristor
    400-1800
    16
    330
    Thyristor
    B2 (30SW14M6)
    In production
  • SKT 24
    Stud Screw Fit Thyristor
    400-1800
    24
    380
    Thyristor
    B2 (30SW14M6)
    In production
  • SKT 40
    Stud Screw Fit Thyristor
    400-1800
    40
    600
    Thyristor
    B3 (33SW17M8)
    In production
  • SKT 50
    Stud Screw Fit Thyristor
    600-1800
    50
    900
    Thyristor
    B3 (33SW17M8)
    In production
  • SKT 55
    Stud Screw Fit Thyristor
    400-1800
    55
    1100
    Thyristor
    B5 (160SW24M12)
    In production
  • SKT 80
    Stud Screw Fit Thyristor
    600-1800
    80
    1500
    Thyristor
    B5 (160SW24M12)
    In production
  • SKT 100
    Stud Screw Fit Thyristor
    400-1800
    100
    1750
    Thyristor
    B5 (160SW24M12)
    In production
  • SKT 130
    Stud Screw Fit Thyristor
    400-1600
    130
    3000
    Thyristor
    B6 (190SW32M16)
    In production
  • SKT 160
    Stud Screw Fit Thyristor
    400-1600
    160
    3750
    Thyristor
    B6 (190SW32M16)
    In production
  • SKT 250
    Stud Screw Fit Thyristor
    400-1600
    250
    6000
    Thyristor
    B7 (230SW41M24)
    In production
  • SKT 300
    Stud Screw Fit Thyristor
    400-1600
    300
    10000
    Thyristor
    B7 (230SW41M24)
    In production
  • SKT 340
    Capsule Thyristor
    1200-1800
    340
    5200
    Thyristor
    B8 (D42x14)
    In production
  • SKT 493
    Capsule Thyristor
    400-1800
    490
    7000
    Thyristor
    B11a (D41x14)
    Not for new designs
  • SKT 551
    Capsule Thyristor
    1200-1800
    550
    8000
    Thyristor
    B11 (D42x14)
    In production
  • SKT 553
    Capsule Thyristor
    400-1800
    550
    8000
    Thyristor
    B11a (D41x14)
    In production
  • SKT 760
    Capsule Thyristor
    1200-1800
    760
    13000
    Thyristor
    B10 (D58x26)
    In production
  • SKT 1200
    Capsule Thyristor
    1200-1800
    1200
    25500
    Thyristor
    B14 (D74x26)
    In production
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