High Frequency Thyristor KA400A 800V – 1400V

Average forward current, IT(AV) (TC, ºC) 400А (55ºC)
Voltage, VDRM/VRRM 800-1400 V
Voltage code, VRRM / 100 8 – 14
KA400-(8...14) on request
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Dimensions ØDxØdxH 42x25x15 mm
Weight 0.10 kg
Datasheet PDF

Ultra Fast High Frequency Thyristor KA400-(8...14) AS ENERGITM in disc design is a press pack type ultra fast turn-off high frequency semiconductor device. This high frequency thyristor designed for converting and control DC and AC currents up to 400A with frequency up to 20kHz in circuits with voltages up to 800V – 1400V (voltage class from 8 to 14). Thyristor dimensions ØDxØdxH – 42x25x15 mm (outer case diameter X contact surface diameter X case height), weight – 100 g.

KA-series Fast High Frequency 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 high frequencies modes (up to 20kHz). A special feature of such thyristors is their highly branched control electrode that ensures short propagation time of the onstate. 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 380A, 390A, 400 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 KA 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: KA400A 800V, KA400A 900V, KA400A 1000V, KA400A 1200V, KA400A 1400V.

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The final price for disc fast high frequency thyristors depends on the voltage class, quantity, delivery terms, manufacturer, country of origin and form of payment.

General specifications of ultra fast high frequency thyristors KA400-(8...14):

Thyristors specifications KA400-(8...14)
Maximum allowable average forward current (Case temperature) IT(AV)/(TC) 400 A (55ºC)
Repetitive pulsed closed state voltage; repetitive pulsed reverse voltage VDRM/VRRM 800-1400 V
Surge on-state current ITSM 5.8 kA
Safety factor I2t 168 kA2·s
Critical rate of rise of off-state voltage dv/dt 200 V/µs
Critical rate of rise of on-state current di/dt 1500 A/µs
Turn-off time tq 12-24 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 PDF PDF

Part numbering guide for ultra fast thyristors KA400A 1400V:

KA 400A 1400V
KA Type: Fast High Frequency Thyristor, brand AS ENERGITM
400A Average forward on-state current IT(AV), A.
1400V Nominal voltage, V.

Polarity (anode, cathode, gate) and dimensions of disc thyristor KA400-(8...14):

Fast High Frequency Thyristor polarity High Frequency Thyristor dimensions

High Frequency Thyristors KA400-(8...14) datasheet:

PDFDownload datasheet for ultra fast thyristors KA400-(8...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:

[email protected]

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.


Photo Gallery

The photo gallery shows many different semiconductor devices, semiconductor chips and SCRs produced by AS ENERGITM, examples of test reports.


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 High Frequency Thyristor SCR:


icon 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.

Certificates

Each product is tested for the main parameters, and Test reports of the parameters for each product are provided.

Test Report

Geography of partnership

AS ENERGITM company manufactures and supplies power semiconductors to more than 50 countries around the world.

Geography

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.

Logistics

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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