Standard Recovery Diodes, Stud Type, Vishay Replacement

Power Rectifier Diodes, also known as Standard Recovery Diodes in stud design is a general-purpose diodes.

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

Rectifier Diodes ASDS AS ENERGITM are a replacement, analog, alternative semiconductor devices for Standard Recovery Diodes Stud Type Vishay Semiconductors.

"Air-cooled heatsinks O series for stud devices", for diode cooling are also available to order.

Part numbering guide for rectifier diodes

youtubeVideo: Reviews of high power stud diodes

icon AS ENERGITM Semiconductors Manufacturing Reference

The standard recovery diodes converting DC and AC currents up to 600A in circuits with voltages up to 3600V. Their main applications are rectifiers for large AC drives, aluminum smelting and other metal refining as well as trackside supply.

The diode has an industry standard stud design making it easy to integrate the device into existing equipment. 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 15000 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 recovery diodes stud type depends on the voltage class, quantity, delivery terms, manufacturer, country of origin and form of payment.

General specifications of Standard Recovery Diodes (Stud Type) Vishay and Replacements

VRRM/VDRM IFSM I2t VF(TO) rT Tvj max Rth(j-c)
W Package Replacement
A (ºC) V A kA2·s V mΩ ºC ºC/W g mm PDF
VS-150U60D 150 (125) 600 3000 45 0.80 0.97 180 0.023 130 DO-8
VS-150UR60D 600 ASDS150UR60D
VS-150U80D 800 ASDS150U80D
VS-150UR80D 800 ASDS150UR80D
VS-150U80DL 800 ASDS150U80DL
VS-150UR80DL 800 ASDS150UR80DL
VS-150U100D 1000 ASDS150U100D
VS-150U100DL 1000 ASDS150U100DL
VS-150UR100D 1000 ASDS150UR100D
VS-150UR100DL 1000 ASDS150UR100DL
VS-150U120D 1200 ASDS150U120D
VS-150U120DL 1200 ASDS150U120DL
VS-150U120DM12 1200 ASDS150U120DM12
VS-150UR120D 1200 ASDS150UR120D
VS-150UR120DL 1200 ASDS150UR120DL
VS-150UR120DM12 1200 ASDS150UR120DM12
VS-45L10 150 (150) 100 3570 64 0.83 0.91 200 0.023 100 DO-30
VS-45LR10 100 ASDS45LR10
VS-45LR20 200 ASDS45LR20
VS-45L20 200 ASDS45L20
VS-45L40 400 ASDS45L40
VS-45LR40 400 ASDS45LR40
VS-45LR60 600 ASDS45LR60
VS-45L60 600 ASDS45L60
VS-150K10A 150 (150) 100 3570 64 0.83 0.91 200 0.023 100 DO-8
VS-150KR10A 100 ASDS150KR10A
VS-150K20A 200 ASDS150K20A
VS-150KR20A 200 ASDS150KR20A
VS-150K30A 300 ASDS150K30A
VS-150KR30A 300 ASDS150KR30A
VS-150K40A 400 ASDS150K40A
VS-150KR40A 400 ASDS150KR40A
VS-150K60A 600 ASDS150K60A
VS-150KR60A 600 ASDS150KR60A
VS-150KS10 150 (150) 100 3570 64 0.83 0.91 200 0.023 100 B-42 ASDS150KS10
VS-150KSR10 100 ASDS150KSR10
VS-150KS20 200 ASDS150KS20
VS-150KSR20 200 ASDS150KSR20
VS-150KS30 300 ASDS150KS30
VS-150KSR30 300 ASDS150KSR30
VS-150KS40 400 ASDS150KS40
VS-150KSR40 400 ASDS150KSR40
VS-150KS60 600 ASDS150KS60
VS-150KSR60 600 ASDS150KSR60
VS-SD200N16PC 200 (110) 1600 4700 110 1.00 0.64 180 0.030 120 DO-30
VS-SD200R16PC 1600 ASDS200R16PC
VS-SD200N20PC 2000 ASDS200N20PC
VS-SD200R20PC 2000 ASDS200R20PC
VS-SD200R24MC 2400 ASDS200R24MC
VS-SD200R24PC 2400 ASDS200R24PC
VS-SD200N24PC 2400 ASDS200N24PC
VS-300U10A 300 (150) 100 6550 214 0.610 0.751 200 0.015 250 DO-9
VS-300UR10A 100 ASDS300UR10A
VS-300U20A 200 ASDS300U20A
VS-300UR20A 200 ASDS300UR20A
VS-300U30A 300 ASDS300U30A
VS-300UR30A 300 ASDS300UR30A
VS-300U40A 400 ASDS300U40A
VS-300U40AM20 400 ASDS300U40AM20
VS-300UR40A 400 ASDS300UR40A
VS-300U60A 600 ASDS300U60A
VS-300UR60A 600 ASDS300UR60A
VS-301URA160 330 (120) 1600 8250 340 0.84 0.49 180 0.011 250 DO-9
VS-301URA200 2000 ASDS301URA200
VS-301URA250 300 (120) 2500 6050 183 0.97 0.55 ASDS301URA250
VS-307URA160 330 (120) 1600 8250 340 0.84 0.49 180 0.011 250 B-60 ASDS307URA160
VS-307URA200 2000 ASDS307URA200
VS-307URA250 300 (120) 2500 6050 183 0.97 0.55 ASDS307URA250
VS-240U60D 320 (100) 600 4500 101 0.83 0.6 180 0.015 250 DO-9
VS-240U60DM16 600 ASDS240U60DM16
VS-240UR60D 600 ASDS240UR60D
VS-240UR60DM16 600 ASDS240UR60DM16
VS-240U80D 800 ASDS240U80D
VS-240U80DM16 800 ASDS240U80DM16
VS-240UR80D 800 ASDS240UR80D
VS-240U100D 1000 ASDS240U100D
VS-240UR100D 1000 ASDS240UR100D
VS-240U120D 1200 ASDS240U120D
VS-240UR120D 1200 ASDS240UR120D
VS-240UR140D 1400 ASDS240UR140D
VS-240UR160D 1600 ASDS240UR160D
VS-SD300N16PC 380 (100) 1600 6050 183 1.05 0.66 180 0.013 250 DO-9
VS-SD300R16PC 1600 ASDS300R16PC
VS-SD300N20PC 2000 ASDS300N20PC
VS-SD300R20PC 2000 ASDS300R20PC
VS-SD300N25PC 2500 ASDS300N25PC
VS-SD300R25PC 2500 ASDS300R25PC
VS-SD300N28PC 2800 ASDS300N28PC
VS-SD300R28PC 2800 ASDS300R28PC
VS-SD300N32PC 3200 ASDS300N32PC
VS-SD300R32PC 3200 ASDS300R32PC
VS-400U80D 400 (120) 800 8250 340 0.85 0.49 200 0.013 250 DO-9
VS-400UR80D 800 ASDS400UR80D
VS-400U120D 1200 ASDS400U120D
VS-400UR120D 1200 ASDS400UR120D
VS-400U160D 1600 ASDS400U160D
VS-400UR160D 1600 ASDS400UR160D
VS-SD400N16PC 480 (120) 1600 8250 340 0.85 0.51 190 0.013 250 DO-9
VS-SD400R16PC 1600 ASDS400R16PC
VS-SD400N20PC 2000 ASDS400N20PC
VS-SD400R20PC 2000 ASDS400R20PC
VS-SD400N24PC 2400 ASDS400N24PC
VS-SD400R24PC 2400 ASDS400R24PC
VS-SD500N36PC 475 (55) 3600 7500 281 0.97 0.72 150 0.008 454 B-8 ASDS500N36PC
VS-SD500R36PC 3600 ASDS500R36PC
VS-SD600N04PC 600 (92) 400 13000 845 0.87 0.31 180 0.008 454 B-8 ASDS600N04PC
VS-SD600R04PC 400 ASDS600R04PC
VS-SD600N08PC 800 ASDS600N08PC
VS-SD600R08PC 800 ASDS600R08PC
VS-SD600N12PC 1200 ASDS600N12PC
VS-SD600R12PC 1200 ASDS600R12PC
VS-SD600N16PC 1600 ASDS600N16PC
VS-SD600N16M24C 1600 ASDS600N16M24C
VS-SD600R16PC 1600 ASDS600R16PC
VS-SD600N20PC 2000 ASDS600N20PC
VS-SD600R20PC 2000 ASDS600R20PC
VS-SD600N22PC 2200 ASDS600N22PC
VS-SD600N28PC 2800 ASDS600N28PC
VS-SD600R28PC 2800 ASDS600R28PC
VS-SD600N32PC 3200 ASDS600N32PC
VS-SD600R32PC 3200 ASDS600R32PC

Part Numbering Guide for Standard Recovery Diodes:

AS DS 30 0 R 25 P C
DS Product group: Diode Stud.
30 Essential part number.
0 Standard recovery.
R N = stud normal polarity (cathode to stud)
R = stud reverse polarity (anode to stud)
25 Voltage code x 100 = VRRM.
P Stud base DO-9 (DO-205AB) 3/4"-16UNF-2A.
C Ceramic housing.

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.

Installation recommendations for stud type power rectifier diodes:

Assembling stud 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.

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

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.

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.

Device under voltage

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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