Power Rectifier Diodes 100A – 500A Stud Type

Power Rectifier Diodes AS ENERGI^TM, also known as stud mount rectifier diodes, in stud design are general-purpose diodes, converting DC and AC currents to 500A at frequencies to 500 Hz in circuits with voltages to 3000V (depending on series).

Disc Type Rectifier Diodes have the following types (current): 100 A, 125 A, 160 A, 200 A, 250 A, 320 A, 400 A, 500 Ampere.

Series of stud rectifier diodes

Part numbering guide for stud rectifier diodes

Technical passport for stud type rectifier diodes

Installation recommendations for stud rectifier diodes

Video: Reviews of power stud and disc rectifier diodes

Polarity of diodes:

forward polarity diode: threaded base - Anode, flexible power lead - Cathode
reverse polarity diode: threaded base - Cathode, flexible power lead - Anode

Polarity of the diode is marked by a polarity symbol on the case. Reverse polarity diodes are indicated by an "X" in the code, e.g. "D161-320X-16". On this page are schematic diagrams and circuits of diodes with Anode and Cathode. The technical specifications, part numbering guide, polarity, dimensions and recommended coolers for diodes are listed below.

Rectifying diodes are one of the most widespread types of power switches. The diode has an industry-standard housing making it easy to integrate the device into existing equipment. The devices have a sealed ceramic housing insulating the semiconductor element from environment.

Air and water heat sinks are used to cool the thyristors. To provide reliable thermal and electrical contact with the heatsink a tightening torque Md must be observed during assembly. For better heat dissipation of thyristor during assembly, heat conducting paste is used.

Rectifier Diodes from AS Energi Global LLC have the following features: low static and dynamic losses, high values of V_RRM, extensive experience of using the devices in various industries, range of voltages from 300 to 4400 V and amperages from 100 to 500 A, high resistance to thermal and electric cycling, natural or forced air cooling.

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

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

For questions regarding the acquisition of High Power 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.

Photo Gallery

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

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Stud Type Power Rectifier Diode Series:

D141

D151

D161, D261

D171, D271, D371

Rectifier Diodes D141 (100A)

Diodes D141

Series	Price	Voltage V_RRM	Average forward current I_F(AV) (T_C, ºC)	Voltage code V_RRM / 100	Weight	Package type	Heatsink	Data sheet
D141-100	on request + –	300 - 1600V	100A (135ºC)	3 - 16	90 g	SD4	O241
D141-100X	on request + –	300 - 1600V	100A (135ºC)	3 - 16	90 g	SD4	O241

Detailed specifications of Rectifier Diodes D141

Series	V_RRM	I_F(AV) (T_C)	I_FRMS	I_FSM	T_jm	V_FM/I_FM	V_F(TO)	r_T	I_RRM	i²·t	R_th(j-c)	M_d	W
Series	V	A (ºC)	A	kA	ºC	V/A	V	mOhm	mA	kA²·s	ºC/W	N·m	kg
D141-100	300 - 1600	100 (135)	157	2.0	190	1.35/314	0.95	1.6	20	24	0.38	6-10	0.09
D141-100X	300 - 1600	100 (135)	157	2.0	190	1.35/314	0.95	1.6	20	24	0.38	6-10	0.09

Rectifier Diodes D151 (125A, 160A)

Diodes D151

Series	Price	Voltage V_RRM	Average forward current I_F(AV) (T_C, ºC)	Voltage code V_RRM / 100	Weight	Package type	Heatsink	Data sheet
D151-125	on request + –	300 - 1600V	125A (140ºC)	3 - 16	165 g	SD5	O151
D151-160	on request + –	300 - 1600V	160A (140ºC)	3 - 16	165 g	SD5	O151

Detailed specifications of Rectifier Diodes D151

Series	V_RRM	I_F(AV) (T_C)	I_FRMS	I_FSM	T_jm	V_FM/I_FM	V_F(TO)	r_T	I_RRM	i²·t	R_th(j-c)	M_d	W
Series	V	A (ºC)	A	kA	ºC	V/A	V	mOhm	mA	kA²·s	ºC/W	N·m	kg
D151-125	300 - 1600	125 (140)	196	3.0	190	1.35/392	0.90	1.3	20	45	0.3	10-20	0.165
D151-160	300 - 1600	160 (140)	300	4.5	190	1.35/502	0.90	1.0	20	100	0.24	10-20	0.165

Rectifier Diodes D161 (200A, 250A, 320A, 400A)

Diodes D161

Series	Price	Voltage V_RRM	Average forward current I_F(AV) (T_C, ºC)	Voltage code V_RRM / 100	Weight	Package type	Heatsink	Data sheet
D161-200	on request + –	300 - 1800V	200A (145ºC)	3 - 18	265 g	SD6	O171, O271, O371, O471, OM101
D161-250	on request + –	300 - 1800V	250A (140ºC)	3 - 18	265 g	SD6	O171, O271, O371, O471, OM101
D161-320	on request + –	300 - 1600V	320A (130ºC)	3 - 16	265 g	SD6	O171, O271, O371, O471, OM101
D161-400	on request + –	300 - 1600V	400A (120ºC) 480A (100ºC)	3 - 16	265 g	SD6	O171, O271, O371, O471, OM101
D161-200X	on request + –	300 - 1600V	200A (145ºC)	3 - 16	265 g	SD6	O171, O271, O371, O471, OM101
D161-250X	on request + –	300 - 1600V	250A (140ºC)	3 - 16	265 g	SD6	O171, O271, O371, O471, OM101
D161-320X	on request + –	300 - 1600V	320A (130ºC)	3 - 16	265 g	SD6	O171, O271, O371, O471, OM101
D161-400X	on request + –	300 - 1600V	400A (115ºC) 480A (100ºC)	3 - 16	265 g	SD6	O171, O271, O371, O471, OM101

Detailed specifications of Rectifier Diodes D161

Series	V_RRM	I_F(AV) (T_C)	I_FRMS	I_FSM	T_jm	V_FM/I_FM	V_F(TO)	r_T	I_RRM	i²·t	R_th(j-c)	M_d	W
Series	V	A (ºC)	A	kA	ºC	V/A	V	mOhm	mA	kA²·s	ºC/W	N·m	kg
D161-200	300 - 1800	200 (145)	314	5.5	190	1.35/628	0.90	0.850	40	150	0.15	20-30	0.265
D161-250	300 - 1800	250 (140)	392	6.4	190	1.35/785	0.90	0.640	40	200	0.15	20-30	0.265
D161-320	300 - 1600	320 (130)	500	7.5	190	1.35/1005	0.90	0.500	40	280	0.15	20-30	0.265
D161-400	300 - 1600	400 (120)	628	7.5	190	1.45/1256	0.836	0.516	40	280	0.13	20-30	0.265
D161-200X	300 - 1600	200 (145)	314	5.5	190	1.35/628	0.90	0.850	40	150	0.15	20-30	0.265
D161-250X	300 - 1600	250 (140)	392	6.4	190	1.45/785	0.90	0.765	40	200	0.14	20-30	0.265
D161-320X	300 - 1600	320 (130)	500	7.5	190	1.50/1005	0.90	0.650	40	280	0.13	20-30	0.265
D161-400Х	300 - 1600	400 (120)	628	7.5	190	1.45/1256	0.836	0.516	40	280	0.13	20-30	0.265

Rectifier Diodes D261 (250A 2400V - 2600V)

Diodes D261

Series	Price	Voltage V_RRM	Average forward current I_F(AV) (T_C, ºC)	Voltage code V_RRM / 100	Weight	Package type	Heatsink	Data sheet
D261-250	on request + –	2400 - 2600V	250A (113ºC)	24 - 26	265 g	SD6	O171, O271, O371, O471, OM101

Detailed specifications of Rectifier Diodes D261

A (ºC)

ºC

V/A

mOhm

kA²·s

ºC/W

N·m

D261-250

2400 - 2600

250 (113)

392

5.5

160

1.37/785

0.88

0.59

150

0.15

20-30

0.265

Rectifier Diodes D171 (400A, 500A)

Diodes D171

Series	Price	Voltage V_RRM	Average forward current I_F(AV) (T_C, ºC)	Voltage code V_RRM / 100	Weight	Package type	Heatsink	Data sheet
D171-400	on request + –	300 - 1800V	400A (145ºC)	3 - 18	465 g	SD7	O181, O281, OM105
D171-500	on request + –	400 - 1800V	500A (140ºC)	4 - 18	465 g	SD7	O181, O281

Detailed specifications of Rectifier Diodes D171

Series	V_RRM	I_F(AV) (T_C)	I_FRMS	I_FSM	T_jm	V_FM/I_FM	V_F(TO)	r_T	I_RRM	i²·t	R_th(j-c)	M_d	W
Series	V	A (ºC)	A	kA	ºC	V/A	V	mOhm	mA	kA²·s	ºC/W	N·m	kg
D171-400	300 - 1800	400 (150)	625	14.0	190	1.4/1256	0.90	0.56	50	980	0.085	25-35	0.465
D171-500	400 - 1800	500 (150)	785	16.0	190	1.4/1570	0.81	0.38	40	1200	0.085	25-35	0.465

Rectifier Diodes D271 (250A, 320A, 400A, 500A)

Diodes D271

Series	Price	Voltage V_RRM	Average forward current I_F(AV) (T_C, ºC)	Voltage code V_RRM / 100	Weight	Package type	Heatsink	Data sheet
D271-250	on request + –	2600 - 3000V	250A (130ºC)	26 - 30	465 g	SD7	O181, O281, OM105
D271-320	on request + –	2000 - 2600V	320A (123ºC)	20 - 26	465 g	SD7	O181, O281, OM105
D271-400	on request + –	300 - 1800V	400A (144ºC) 544A (120ºC)	3 - 18	465 g	SD7	O181, O281, OM105
D271-500	on request + –	600 - 1200V	500A (136ºC) 603A (120ºC)	6 - 12	465 g	SD7	O181, O281, OM105
D271-400X	on request + –	300 - 1800V	400A (150ºC) 592A (120ºC)	3 - 18	465 g	SD7	O181, O281, OM105
D271-500X	on request + –	600 - 1200V	500A (142ºC) 659A (120ºC)	6 - 12	465 g	SD7	O181, O281, OM105

Detailed specifications of Rectifier Diodes D271

Series	V_RRM	I_F(AV) (T_C)	I_FRMS	I_FSM	T_jm	V_FM/I_FM	V_F(TO)	r_T	I_RRM	i²·t	R_th(j-c)	M_d	W
Series	V	A (ºC)	A	kA	ºC	V/A	V	mOhm	mA	kA²·s	ºC/W	N·m	kg
D271-250	2600 - 3000	250 (130)	392	5.5	160	1.40/785	1.02	0.51	50	151	0.090	25-35	0.465
D271-320	2000 - 2600	320 (123)	502	6.5	160	1.33/1000	0.92	0.45	50	211	0.090	25-35	0.465
D271-400	300 - 1800	400 (144) 544 (120)	628	13.0	190	1.45/1256	0.80	0.53	40	840	0.085	25-35	0.465
D271-500	600 - 1200	500 (136) 603 (120)	785	16.0	190	1.40/1570	0.81	0.38	40	1200	0.085	25-35	0.465
D271-400Х	300 - 1800	400 (150) 592 (120)	628	13.0	190	1.45/1256	0.80	0.53	40	840	0.085	25-35	0.465
D271-500Х	600 - 1200	500 (142) 659 (120)	785	16.0	190	1.40/1570	0.81	0.38	40	1200	0.085	25-35	0.465

Rectifier Diodes D371 (250A)

Diodes D371

Series	Price	Voltage V_RRM	Average forward current I_F(AV) (T_C, ºC)	Voltage code V_RRM / 100	Weight	Package type	Heatsink	Data sheet
D371-250	on request + –	4000 - 4400V	250A (116ºC)	40 - 44	465 g	SD7	O181, O281, OM105

Detailed specifications of Rectifier Diodes D371

A (ºC)

ºC

V/A

mOhm

kA²·s

ºC/W

N·m

D371-250

4000 - 4400

250 (116)

392

5.4

160

2.10/785

1.34

0.98

146

0.090

25-35

0.465

Part Numbering Guide for Power Rectifier Stud Type Diodes:

161

–

320

–

D	–	Rectifier Diode, AS ENERGI^TM
161	–	Diode type (stud type).
320	–	Average forward current I_F(AV), Amp.
16	–	Voltage class V_RRM / 100 (Nominal voltage – 1600 V).

Technical Passport for Rectifier Stud Type Diodes (sample):

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

High Power Semiconductors AS ENERGI^TM

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

To purchase Power Rectifier Diodes, Thyristors, Modules send an email request to:

[email protected]

And we will provide you a commercial offer for delivery.

Video: Stud Type Power Rectifier Diodes

Video: Disc Type Rectifier Diodes

Photo of Stud Type Rectifier Diodes:

Installation recommendations for stud type power rectifier diodes:

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.

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

Why choose AS ENERGI^TM

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 ENERGI^TM 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 ENERGI^TM 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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