Powerex LDR3__50 Data Sheet

500 Amperes / Up to 1800 Volts

OUTLINE DRAWING

PRELIMINARY

LDR3__50

POW-R-BLOK

Dual SCR Isolated Module

TM

Ordering Information:

Select the complete eight-digit
module part number from the table
below.
Example: LDR31650 is a 1600V,
500 Ampere Dual SCR Isolated

POW-R-BLOK

TM

Module.

Type

LDR3 08

Voltage

Volts

(x100)

10
12
14
16
18

Current

Amperes

(x10)

50

LDR3 Outline Dimensions

Dimension Inches Millimeters

A 5.87 149

B 4.88 124

C 4.41 112

D 2.36 60

E 2.05 52

F 1.97 50

G 1.89 48

H 1.73 44

J 1.22 31

K 1.10 28

L 1.02 26

M 0.67 17

N 0.39 10

P M10 Metric M10

Q 0.26 Dia. 6.5 Dia.

R 0.20 5

S 0.12 3

T .110 x .032 2.8 x 0.8

Note: Dimensions are for reference only.

LDR3__50
Dual SCR
POW-R-BLOKTM Module

500 Amperes / 800-1800 Volts

Description:

Powerex Dual SCR Modules are
designed for use in applications
requiring phase control and isolated
packaging. The modules are isolated
for easy mounting with other
components on a common heatsink.

POW-R-BLOK

recognized by the Underwriters
Laboratories.

Features:

 Electrically Isolated Heatsinking
 Compression Bonded Elements
 Metal Baseplate
 Low Thermal Impedance

for Improved Current Capability
 Includes Gate Lead Kits and

M10 Terminal Hardware

 UL Recognition Pending
 RoHS Compliant

Benefits:

 No Additional Insulation
Components Required

 Easy Installation
 No Clamping Components

Required
 Reduce Engineering Time

Applications:

 Bridge Circuits
 AC & DC Motor Drives
 Battery Supplies
 Power Supplies
 Large IGBT Circuit Front Ends

TM

has been tested and

Revision Date: 7/21/2017

A

A

PRELIMINARY

LDR3__50

POW-R-BLOK

TM

Dual SCR Isolated Module

500 Amperes / Up to 1800 Volts

Absolute Maximum Ratings

Characteristics Conditions Symbol Units

Repetitive Peak Forward and Reverse Blocking
Voltage

Non-Repetitive Peak Blocking Voltage
(t < 5 msec)
RMS Forward Current 180° Conduction, TC=85°C, 50 Hz I

verage Forward Current 180° Conduction, TC=85°C, 50 Hz I

Peak One Cycle Surge Current, Non-Repetitive 60 Hz, 0V reapplied, Tj= T

60 Hz, 0V reapplied, Tj= 25 °C I

50 Hz, 0V reapplied T

50 Hz, 0V reapplied, T

2

t for Fusing for One Cycle 60 Hz, 0V reapplied, Tj= T

I

60 Hz, 0V reapplied, Tj= 25 °C

50 Hz, 0V reapplied T

50 Hz, 0V reapplied, T

verage Forward Gate Power P

Maximum Rate-of-Rise of On-State Current,

T= T

(Repetitive)

Gate Pulse: I

Operating Temperature TJ -40 to +130 °C

Storage Temperature T

Max. Mounting Torque, M6 Mounting Screw 55

Max. Mounting Torque, M10 Terminal Screw 110

Module Weight, Typical 1.5 kg

3.30 lb

V Isolation @ 25C t= 1 minute, 50 Hz

Information presented is based upon manufacturers testing and projected capabilities.
This information is subject to change without notice.
The manufacturer makes no claim as to the suitability of use, reliability, capability,
or future availability of this product.

V

V

I

j max

= T

I

j

j max

= 25 °C I

j

j max

= T

j

j max

= 25 °C

j

, VD= 0.67 V

j max

I

= 2 I

TM

TAV

= 2 A, tGP= 50 µs,

G

di

/dt>= 1 A/µs

G

,

DRM

,

& V

DRM

up to 1800 V

RRM

V

RSM

785 A

T(RMS)

T(AV)

TSM

TSM

15,500 A

TSM

18,000 A

TSM

2

t

I

2

t

I

2

t

I

2

t

I

4 W

G(AV)

di/dt 400 A/µs

-40 to +125 °C

stg

V

rms

+ 100 V

RRM

500 A

17,000 A

20,000 A

1.19 x 10

1.66 x 10

1.20 x 10

1.62 x 10

6

6

6

6

2

A

sec

2

A

sec

A2 sec

2

A

sec

in. – Lb.

6

Nm

in. – Lb.

12

Nm

3000 V

Revision Date: 7/21/2017