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Thyristor / Diode Discretes

The power capsule devices made by TECHSEM include phase-control thyristors (KP series), fast turn-off thyristors (KK series) and rectifier diodes (ZP series), with chip diameters ranging from 0.5 inches to 5 inches. The output current range is 200A to 8500A, and the reverse voltage range of the capsule devices is 400V to 6500V. All TECHSEM capsules have CE marking and comply with European RoHS directives. TECHSEM is the leader in the Chinese power capsule device market. TECHSEM products are widely used for soft starter, induction heating, welding devices, rectifiers, power supplies and other applications in many industries. The packages of TECHSEM capsule devices are in full compliance with international standards and providing excellent versatility and substitutability to customers.

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Category 
Voltage (V) 
Current (A) 
Package type 
Price 
  1. H100KPR-35-60

    H100KPR-35-60

    Phase Controlled Thyristors
    VRRM: 6000 (V)
    ITAV: 3500 (A) H100KPR-35-60

    Original Price: $2,441.92

    Now only: $2,073.81 As low as: $867.83
    VAT not applicable
    excl. Shipping Cost
  2. H100KPR-35-65

    H100KPR-35-65

    Phase Controlled Thyristors
    VRRM: 6500 (V)
    ITAV: 3500 (A) H100KPR-35-65

    Original Price: $2,507.87

    Now only: $2,129.87 As low as: $891.28
    VAT not applicable
    excl. Shipping Cost
  3. H125KPR-52-60

    H125KPR-52-60

    Phase Controlled Thyristors
    VRRM: 6000 (V)
    ITAV: 5200 (A) H125KPR-52-60

    Original Price: $4,751.76

    Now only: $4,035.51 As low as: $1,688.74
    VAT not applicable
    excl. Shipping Cost
  4. H125KPR-52-65

    H125KPR-52-65

    Phase Controlled Thyristors
    VRRM: 6500 (V)
    ITAV: 5200 (A) H125KPR-52-65

    Original Price: $5,015.78

    Now only: $4,259.70 As low as: $1,782.56
    VAT not applicable
    excl. Shipping Cost
  5. H38KPR-04-60

    H38KPR-04-60

    Phase Controlled Thyristors
    VRRM: 6000 (V)
    ITAV: 400 (A) H38KPR-04-60

    Original Price: $429.00

    Now only: $364.35 As low as: $152.47
    VAT not applicable
    excl. Shipping Cost
  6. H38KPR-04-65

    H38KPR-04-65

    Phase Controlled Thyristors
    VRRM: 6500 (V)
    ITAV: 400 (A) H38KPR-04-65

    Original Price: $448.80

    Now only: $381.15 As low as: $159.50
    VAT not applicable
    excl. Shipping Cost
  7. H50KPR-09-60

    H50KPR-09-60

    Phase Controlled Thyristors
    VRRM: 6000 (V)
    ITAV: 900 (A) H50KPR-09-60

    Original Price: $660.00

    Now only: $560.49 As low as: $234.54
    VAT not applicable
    excl. Shipping Cost
  8. H50KPR-09-65

    H50KPR-09-65

    Phase Controlled Thyristors
    VRRM: 6500 (V)
    ITAV: 900 (A) H50KPR-09-65

    Original Price: $725.95

    Now only: $616.55 As low as: $258.01
    VAT not applicable
    excl. Shipping Cost
  9. H76KPR-16-60

    H76KPR-16-60

    Phase Controlled Thyristors
    VRRM: 6000 (V)
    ITAV: 1600 (A) H76KPR-16-60

    Original Price: $1,187.93

    Now only: $1,008.88 As low as: $422.19
    VAT not applicable
    excl. Shipping Cost
  10. H76KPR-16-65

    H76KPR-16-65

    Phase Controlled Thyristors
    VRRM: 6500 (V)
    ITAV: 1600 (A) H76KPR-16-65

    Original Price: $1,227.52

    Now only: $1,042.50 As low as: $436.25
    VAT not applicable
    excl. Shipping Cost

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More information about thyristor & diode discrete

A discrete structure is defined as a structure consists of sole diodes, transistors and thyristors and has no integrated circuits. The individual components are soldered on the semiconductor plate. Where the modules are no longer sufficient, the disc cells / capsules can be used. The disc cells have no insulation within them and can be cooled on both sides. Thus, due to the two-sided heat dissipation they are especially suitable for operation between two heatsinks. A thyristor disc cells has an optimal thermal and electrical contact to the heat sink. Such things can, however, also easily reached from internal component.

The name disc cells derives, whether equipped with a thyristor or diode, from the round and flat, disk-like shape. Here, a thyristor or diode will be placed on a wafer between two plungers, which are a cathode and an anode. This wafer chip is round and favors the disk shape. The wafer chip is fabricated in a clean room from silicon to achieve the optimal quality in the disc cells.

The disc cell is encased in a ceramic housing. In order to distribute evenly the pressure on the wafer and the thyristor as well as on the anode, and to achieve an optimal adaptation to the material expansion, the wafer made of silicon will be placed between two slices of molybdenum. The welding of the two closure plates as the ceiling and bottom hermetically closes the complete disc cell. Only when the disc cell is subjected to a certain pressure, a thermal and electrical contact between anode and cathode can be realized and the diode or thyristor dedicates to the task put to him.

Therefore, the disc cells are an excellent choice for soft starter device, as well as for induction heating, welding equipment, DC power systems and electricity utilities. Using a soft starter the final consumption for on switching of the device can be reduced, and for the devices with mechanical reaction forces such as grinding machines, these can be also minimized. The electrical motors and other machines with strong or large torque can thus additionally be protected against overly large input acceleration and the direct response of a power protection can be then bypassed.