Power Rectifier Diode Module MDK800-25 (800A 2500V) Water cooling MDK800-25-409F3

Average forward current, ITAV/IFAV (Tcase) 800A (60ºC)
Voltage, VRRM/VDRM 1900 – 2500V
Voltage code, VRRM / 100 19 – 25
MDK800-25-W on request
Weight 2600 g
Dimensions L×B×H
Datasheet Datasheet

Dual diode rectifier module MDK 800-25-W AS ENERGITM in an international standard package with water cooling, 800A 2500V.

The diode modules MDK800-25-W-409F3 are characterized by high electrical and thermal cycling capability, meaning high reliability and long lifetime in intensive operation modes. The diode modules are housed in a industry-standard housing making it easy to integrate the device into existing equipment.

The two-position modules have different switching circuits (electrical circuit diagrams): МDChalf-bridge; МDKscheme with common cathode; МDAscheme with common anode.

Series (ratings) of diode modules: MDK800-19 (800A 1900V), MDK800-20 (800A 2000V), MDK800-22 (800A 2200V), MDK800-24 (800A 2400V).

The main (power) terminals are on the top of the case and are marked as 123 (common anode-cathode, cathode, anode).

Dual diode modules MDK series are used in various power equipment - power and control units, power regulators, AC regulators, DC motors control, AC motor soft starters, converters, controllers of blast furnaces or chemical processes, welding equipment, and as rectifiers for AC converters.

The modules are available in standard and water-cooled housings. Water-cooling is indicated by the letter W in the marking. Water-cooled MDK800-25-W modules feature a direct cooled base, allowing for more efficient cooling and offering an enhanced average current rating.

Our modules are offered in several dual and single device topologies for almost all phase control or rectifier applications.

Our company provides a quality guarantee for thyristor / diode modules of 2 years from the date of purchase. When supplying thyristor / diode modules, if necessary, we provide technical passport and certificate of conformity.

Read more

The final price for thyristor / diode modules depends on the class, quantity, delivery terms, manufacturer, country of origin and form of payment.

General specifications of diode-diode module MDK800-25-W, MDK800-25-W-409F3:

Diode module specifications MDK800-25-W
Maximum allowable average forward current (Case temperature) ITAV/IFAV (Tcase) 800 A (60ºC)
Repetitive pulsed reverse voltage; Repetitive pulsed closed state voltage VRRM/VDRM 2500 V
Surge on-state current ITSM/IFSM 22 A
Safety factor I2t 2420 kA2·s
Threshold voltage VT(TO) 0.80 V
Repetitive pulse current when closed; repetitive pulse return current IDRM/IRRM 45 mA
Open pulse voltage VTM 1.86 V
Open pulse current ITM 2400 A
On-state slope resistance rT 0.36 mΩ
Junction temperature Tvj max 125 ºC
Thermal resistance, junction to case Rth(j-c) 0.075 ºC/W
Design (switches) - dual component
Type (circuit diagram) - diode-diode
Weight W 2600 g
Package (Housing) type 409F3
Dimensions, mm L×B×H 135x76x68
Datasheet PDF Datasheet

Part numbering guide for diode–diode modules MDK:

MD K 800 25 W 409F3
MD Diode module, brand AS ENERGITM
K Circuit topology: common cathode-cathode.
800 Rated current (ITAV), A.
25 Voltage class (VRRM/100).
W Water cooling.
409F3 Package (housing) type.

Dimensions of diode module MDK800-25-W, MDK800-25-W-409F3:


Circuit diagram of diode modules MDK:


1 (KК), 2 (A), 3 (А) – main (power) terminals.

Diode module MDK800-25 datasheet:

PDFDownload pdf datasheet for diode MDK800-25

Technical Passport for Diode Modules MDK (sample):

When supplying diode, if necessary, we provide technical passport and certificate of conformity.

  • Technical Passport
  • Technical Passport
  • Technical Passport

High Power Semiconductors by AS ENERGI

The company manufactures a wide range of power semiconductors (thyristors, diodes, modules).
You can buy thyristor modules 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 Modules, Diodes, Thyristors, 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.

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.


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.


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.

Featured Products:


Tags: diode module scr mdk 800A 2500V, diode water cooling module mdk 800A, diode-diode rectifier module alternative components, dual diode module, MDK800-25 parameters, datasheet, specification, circuit, factory manufacturer of power diode module, rectifier, semiconductor diode, diode module price list, order, diode rectifier


Selected Products: