Fast Thyristor KK200A 1200V – 1400V
Average forward current, IT(AV) (TC, ºC) | 200А (55ºC) |
Voltage, VDRM/VRRM | 1200-1400 V |
Voltage code, VRRM / 100 | 12 – 14 |
KK200-(12...14) | on request |
Dimensions ØDxØdxH | 42x25x15 mm |
Weight | 0.10 kg |
Datasheet | ![]() |
Fast Thyristor KK200-(12...14) AS ENERGITM in disc design is a press pack type fast turn-off semiconductor device. This fast power thyristor designed for converting and control DC and AC currents up to 200A with frequency up to 10kHz in circuits with voltages up to 1200V – 1400V (voltage class from 12 to 14). Thyristor dimensions ØDxØdxH – 42x25x15 mm (outer case diameter X contact surface diameter X case height), weight – 100 g.
KK-series Fast thyristors are devices with reduced tq, trr, Qrr values and with a higher value (diT/dt)cr (up to 2500 A/µs) designed to operate at higher frequencies modes (up to 10kHz). Fast thyristors are characterized with a very low turn-off time that sets them apart from the standard models. They are used in welding, induction heating and melting, electric transportation, AC drives, UPS, and other systems requiring short turn-on and turn-off times. The thyristors have an industry-standard ceramic sealed housing isolating the functional part and the semiconductor element from mechanical impacts and environment.
The anode and cathode of the thyristor (polarity) are determined by the symbol on the case. Fast thyristors are in a press pack disc (capsule, tablet) housing. This fast thyristor can be an alternative product, replacement, analog, equivalent for other types of fast thyristors 180A, 190A, 200 amp in a disk package.
For cooling during the operation of power thyristors they are mounted with coolers (heat sinks). Depending on the amount of heat generated and the working conditions of the semiconductors, either natural air flow cooling or forced cooling can be used.
When assembling, the necessary clamping force Fm specific for each type of thyristor package (indicated in the parameter table) must be provided.
Thyristors can be manufactured for use in temperate, cold and tropical climates. Thyristors of the disc type KK are used in various power converters (e.g. melting furnaces) where fast switching and control of currents is necessary.
Specifications and parameters, datasheets PDF, dimensions, drawings, case diagrams thyristors, recommended coolers are listed below.
Our company provides a quality guarantee for thyristors of 2 years from the date of purchase. When supplying thyristors, if necessary, we provide technical passport and certificate of conformity.
Fast thyristor ratings: KK200A 1200V, KK200A 1400V.
The final price for disc fast thyristors depends on the voltage class, quantity, delivery terms, manufacturer, country of origin and form of payment.
For questions regarding the acquisition of High Power Fast Thyristors send an email request to:
And we will provide you a commercial offer for delivery.
For a large number, we will provide an individual price!!!
We are open to manufacture products at our production facilities
according to your requests and technical task.
General specifications of fast thyristors KK200-(12...14):
Thyristors specifications | KK200-(12...14) | |
Maximum allowable average forward current (Case temperature) | IT(AV)/(TC) | 200 A (55ºC) |
Repetitive pulsed closed state voltage; repetitive pulsed reverse voltage | VDRM/VRRM | 1200-1400 V |
Surge on-state current | ITSM | 2.8 kA |
Safety factor | I2t | 39 kA2·s |
Critical rate of rise of off-state voltage | dv/dt | 1000 V/µs |
Critical rate of rise of on-state current | di/dt | 200 A/µs |
Turn-off time | tq | 20 µs |
Temperature of p-n junction | Tvj max | 125 ºC |
Thermal resistance, junction to case | Rth(j-c) | 0.08 ºC/W |
Clamping force | Fm ±10% | 5 kN |
Weight | W | 0.10 kg |
Dimensions | ØDxØdxH | 42x25x15 |
Datasheet | ![]() |
Part numbering guide for fast thyristors KK200A 14V:
KK | 200A | – | 1400V |
KK | – | Type: Fast thyristor, ![]() |
200A | – | Average forward on-state current IT(AV), A. |
1400V | – | Nominal voltage, V. |
Polarity (anode, cathode, gate) and dimensions of disc thyristor KK200-(12...14):
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Thyristors KK200-(12...14) datasheet:
Download datasheet for fast thyristors KK200-(12...14)
High Power Semiconductors by AS ENERGI
Our company is engaged in the manufacturer and sale of power semiconductors (power thyristors, diodes, modules).
You can buy semiconductor devices from us in any volumes, and when ordering large lots, the price will be lower.
We have earned the trust of customers and supply products all over the world.
For questions regarding the acquisition of Power Thyristors, Diodes, Modules send an email request to:
And we will provide you a commercial offer for delivery.
For a large number, we will provide an individual price!!!
We are open to manufacture products at our production facilities
according to your requests and technical task.
Heat sinks for disc fast thyristors:
Heat sinks (radiators) are used for single- and double-sided cooling of power semiconductor devices in disc design.
Heat sinks of coolers are made of aluminum radiator profiles and do not require additional protective coating when used in various climatic conditions.
See for more information about heatsinks: "Air-cooled heatsinks O series for disc devices", "Air heatsink SF series", "Water heatsink SS series".
Photo of Fast Thyristor SCR:
Why choose AS ENERGITM
- Own production facilities, including semiconductor silicon chips production
- European brand - 100% quality, favorable price, short production terms
- Over 20 years of experience in the semiconductor industry
- Clients from more than 50 countries trust us
- 20000 items in the product line for currents from 10A to 15000A, voltages from 100V to 9000V
- We produce analogues of other manufacturers' products
- Guaranteed certified quality, warranty period of operation - 2 years
Quality Warranty
Our products are certified and correspond to international standards.
Our company provides a quality guarantee for products of 2 years.
We provide certificates of conformity, reliability reports, data sheets and technical passports at the request of the customer.
Each product is tested for the main parameters, and Test reports of the parameters for each product are provided.
Geography of partnership
AS ENERGITM company manufactures and supplies power semiconductors to more than 50 countries around the world.
Logistics and Delivery
We deliver our products all over the world with the services of logistics companies: DHL, TNT, UPS, EMS, Fedex, Aramex.
Products can be delivered by any means of transport: air, sea, rail and road.

AS ENERGITM Semiconductors Manufacturing
Our products range includes rectifier diodes, phase control thyristors in disc and stud design, avalanche diodes and thyristors, fast switching, high frequency thyristors, fast recovery, welding and rotor diodes, triacs, bridge rectifiers, power modules (thyristor, diode, thyristor-diode, IGBT), and air and water heatsinks to them.
Power diodes and thyristors are produced for currents from 10A to 15000A, voltage range from 100V to 9000V.
Power diode and thyristor modules are produced from 25A and up to 1250A, voltage range 400V - 4400V.
The range of power semiconductors also includes equivalent, replacement, analogue and alternative semiconductor devices of global manufacturers.
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