Standard Rectifier Diodes Infineon Replacement

Power Standard Rectifier Diodes, also known as Normal Recovery Diodes in disc design is a press pack type general-purpose diodes.

Features: optimised for line frequency; low on-state losses; high reverse voltage and high current handling capabilities.

Rectifier Diodes ADD AS ENERGITM are a replacement, analog, alternative semiconductor devices for Standard Rectifier Diodes D Series Infineon Technologies, Eupec.

Part numbering guide for rectifier diodes

youtubeVideo: Reviews of high power disc diodes

icon AS ENERGITM Semiconductors Manufacturing Reference

The standard rectifier diodes converting DC and AC currents up to 7500A in circuits with voltages up to 9000V. Their main applications are rectifiers for large AC drives, aluminum smelting and other metal refining as well as trackside supply.

"Air-cooled heatsinks O series for disc devices", "Air heatsink SF series", "Water heatsink SS series" for diode cooling are also available to order.

The diode has an industry standard ceramic housing making it easy to integrate the device into existing equipment. This diode has a disc housing with pressure contacts. The polarity of the diode (anode, cathode) is determined by the icon on the case. The technical specifications, part numbering guide, datashets for diodes are listed below.

Rectifier Diodes AS ENERGITM have the following features: low static and dynamic losses, high values of VRSM/VRRM, extensive experience of using the devices in various industries, range of voltages from 100 to 9000 V and amperages from 100 to 7500 A, high resistance to thermal and electric cycling.

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

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The final price of standard rectifier diodes depends on the voltage class, quantity, delivery terms, manufacturer, country of origin and form of payment.

General specifications of Rectifier Disc Diodes Infineon and Replacements

(TC, °C)
IFSM I2t VT0 rT Tvj max Rth(j-c) Fm Package Replacement
Data sheet
V A A kA2·s V mΩ ºC K/kW kN PDF
Rectifier diodes up to 800 V
D650N02T 200 651 (100) 510 130 0.70 0.51 180 81.0 2.6-4.6 D42.14K0 ADD650N02T
D650N06T 600 ADD650N06T
D970N06T 600 972 (100) 8800 387 0.70 0.31 180 57.0 3.9-7.6 D42.14K0 ADD970N06T
D2450N02T 200 2450 (100) 28500 4061 0.70 0.0975 180 25.3 12.0-24.0 D58.14K0 ADD2450N02T
D2450N04T 400 ADD2450N04T
D2450N06T 600 ADD2450N06T
D5810N04T VF 400 5800 (58) 70000 24500 0.70 0.04 180 17.0 30.0-60.0 D75.26K0 ADD5810N04T VF
D5810N06T VF 600 ADD5810N06T VF
D8320N04T VF 400 8320 (56) 95000 45000 0.70 0.02 180 12.5 40.0-80.0 D100.26K0 ADD8320N04T VF
D8320N06T VF 600 ADD8320N06T VF
Rectifier diodes up to 1800 V
D1050N18T 1800 1050 (130) 18500 1710 0.81 0.17 180 38.0 10.0-24.0 D58.26K0 ADD1050N18T
D1230N14T 1400 1234 (100) 11800 696 0.81 0.28 180 39.0 6.0-15.0 D48.14K0 ADD1230N14T
D1230N16T 1600 ADD1230N16T
D1230N18T 1800 ADD1230N18T
Rectifier diodes up to 3000 V
D820N22T 2200 818 (100) 9000 405 0.83 0.52 160 39.0 6.0-15.0 D48.14K0 ADD820N22T
D950N18T 1800 950 (100) 10250 525 0.70 0.50 180 45.0 6.0-12.0 D42.14K0 ADD950N18T
D950N22T 2200 ADD950N22T
D1030N22T 2200 1030 (100) 14500 1051 0.82 0.28 160 38.0 10.0-24.0 D58.26K0 ADD1030N22T
D1030N26T 2600 ADD1030N26T
D2200N20T VF 2000 2200 (100) 35000 6125 0.83 0.15 160 17.0 24.0-60.0 D75.26K0 ADD2200N20T VF
D2200N22T VF 2400 ADD2200N22T VF
D2200N24T VF 2400 ADD2200N24T VF
D2520N22T VF 2200 2520 (100) 35000 6125 0.73 0.10 175 22.0 15.0-24.0 D76.26K0 ADD2520N22T VF
D2650N24T VF 2400 2650 (100) 41000 5611 0.82 0.15 180 16.9 24.0-60.0 D75.26K0 ADD2650N24T VF
D4201N20T 2000 4240 (100) 73500 27000 0.67 0.08 160 9.2 36.0-52.0 D120.35K ADD4201N20T
D4201N22T 2200 ADD4201N22T
D4810N22T VF 2200 4810 (100) 60000 18000 0.83 0.06 160 8.0 42.0-95.0 D111.26K0 ADD4810N22T VF
D4810N28T VF 2800 ADD4810N28T VF
Rectifier diodes up to 5000 V
D740N44T 4400 750 (100) 11000 605 0.85 0.650 160 39.0 10-24 D58.26K0 ADD740N44T
D740N48T 4800 ADD740N48T
D1800N40T VF 4000 1800 (100) 27500 3781 0.85 0.250 160 16.9 24-60 D75.26K0 ADD1800N40T VF
D1800N43T VF 4300 ADD1800N43T VF
D1800N44T VF 4400 ADD1800N44T VF
D1800N46T VF 4600 ADD1800N46T VF
D1800N48T VF 4800 ADD1800N48T VF
D2201N45T 4500 2060 (100) 38000 7220 0.69 0.206 140 11.2 27-45 D100.26K0 ADD2201N45T
D3501N40T 4000 3470 (100) 56000 15700 0.73 0.130 160 9.2 36-52 D120.35K ADD3501N40T
D3501N42T 4200 ADD3501N42T
D6001N50T 5000 5790 (100) 110000 60500 0.80 0.090 160 4.6 63-91 D150.26K ADD6001N50T
Rectifier diodes up to 10000 V
D471N90T 9000 550 (100) 10000 500 1.04 1.78 160 31.5 10-16 D58.26K0 ADD471N90T
D711N60T 6000 770 (100) 10500 550 0.84 0.87 160 31.5 10-16 D58.26K0 ADD711N60T
D711N65T 6500 ADD711N65T
D711N68T 6800 ADD711N68T
D1481N65T VF 6500 1590 (100) 24500 3000 0.75 0.42 160 15.8 15-36 D76.26K ADD1481N65T VF
D1481N68T VF 6800 ADD1481N68T VF
D1721NH90T 9000 1670 (85) 35000 5780 1.36 0.65 140 7.5 36-52 D120.26K ADD1721NH90T
D2601N85T 8500 2200 (100) 50000 12500 0.94 0.41 160 8.55 36-52 D120.26K ADD2601N85T
D2601N90T 9000 ADD2601N90T
D2601NH90T 9000 1440 (85) 22000 12500 0.94 0.41 160 8.55 36-52 D120.26K ADD2601NH90T
D3001N68T 6800 2800 (100) 53000 14040 0.84 0.22 160 9.2 36-52 D120.35K ADD3001N68T
D3041N60T 6000 2930 (100) 53000 14040 0.84 0.22 160 8.55 36-52 D120.35K ADD3041N60T
D3041N65T 6500 ADD3041N65T
D3041N68T 6800 ADD3041N68T

Drawings and housings dimensions for Disc Diodes:

Package type Dimensions ØDxØdxH Weight
D42.14K0 42x23x14.5 mm 0.075 kg
D48.14K0 48x30x14.5 mm 0.11 kg
D58.14K0 58x36x14.5 mm 0.16 kg
D58.26K0 58x36x26.6 mm 0.28 kg
D75.26K0 75x50x26.5 mm 0.60 kg
D76.26K0 76x50x26 mm 0.60 kg
D100.26K 100x62.8x26 mm 0.90 kg
D100.26K0 100x65x26.5 mm 0.90 kg
D111.26K0 111x75x26.5 mm 1.20 kg
D120.26K 121x86x26 mm 1.35 kg
D120.35K 121x86x35 mm 1.70 kg
D150.26K 151.5x100x26 mm 2.50 kg
D150.35K 151.5x100x35 mm 3.00 kg
D172.26K 172.5x115x26 mm 4.00 kg

Part Numbering Guide for Standard Rectifier Diodes:

A DD 1721 N H 90 T VF
DD Product group: Rectifier Diode.
1721 Average forward current IF(AV), Amp.
N Normal recovery (standard rectifier) diode.
H Diode with soft recovery switch-off behaviour.
90 Voltage class VRRM / 100.
T Housing (package) type: disc housing.
VF Delivered in VF classes.

High Power Semiconductors AS ENERGITM

Our company is engaged in the manufacturer and sale of wide range of power semiconductors (power thyristors, modules, rectifier diodes, avalanche, rotor and welding diodes, triacs etc.) currents up to 15000A and voltages to 9000V, and air and water heatsinks to them.
You can buy semiconductor devices 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.

Photo of Rectifier Diodes:

Installation recommendations for disc type power rectifier diodes:

Assembling a diode with a heatsink

The reliability of heat transfer and electrical contact between the mating surfaces of the diode and the cooler over the entire temperature range is ensured by appropriate torque (clamping force).

Before assembly you should perform visual inspection (1) contact surfaces for mechanical damages and wipe (2), soaked with alcohol (toluene, gasoline, acetone).

After inspection, fix the current contacts (leads), install a pin to fix the alignment of the structure.

To improve the parameters of heat transfer it is recommended to lubricate (3) a thin layer of silicone thermal conductive paste before the assembly, which is not a mandatory condition for installation.

Install the diode (3), the second part of the cooler, the fiberglass insulator and the thrust washer.

To thread the traverse (4) and evenly tighten the nuts. Make sure no misalignment and evenness of the contact surfaces.

When the parts are sufficiently clamped but moveable, we recommend placing the cooler on a flat surface and checking the tolerance for parallelism of the overall adjacent plane of the surfaces (5).

Clamp each nut in turn (about a quarter turn) to the stop (6). The amount of deflection of the traverse determines whether the achieved clamping force corresponds to the required one.

After installation, the fasteners (nuts and washers) must be additionally secured against corrosion.

Tips and recommendations for power diodes:

The power diodes should not be operated for long periods of time at their limit load for all parameters. In this case, the safety factor is determined by the required degree of reliability of the device.

Replace a failed power diode with a diode that matches the parameters of the one being replaced.

Supercooling must be provided when operating in an environment with an elevated ambient temperature.

Periodic cleaning of power diodes and coolers to remove dust and contaminants is recommended to ensure proper heat dissipation.

Inductive current dividers (often twisted toroidal wire) should be used to equalize currents between power diodes connected in parallel. The most popular connection methods are closed circuit, common coil circuit, or power diode. The efficiency of current dividers in this case is determined by the cross section of the magnetic wire.

Prevention of voltage unbalance when power diodes are connected in series is achieved by using shunt resistors connected in parallel with each diode. Voltage equalization in transient conditions is provided by connecting capacitors in parallel to each diode.

It is strictly forbidden to touch power diodes under high voltage during operation.

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.

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