International Rrectifier MT..KB User Manual

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Bulletin I27500 rev. A 05/03

MT..KB SERIES

THREE PHASE BRIDGE

Features

Package fully compatible with the industry standard INT-A­pak power modules series

High thermal conductivity package, electrically insulated case
Outstanding number of power encapsulated components
Excellent power volume ratio, outline for easy connections to

power transistor and IGBT modules
4000 V
UL E78996 approved

isolating voltage

RMS

Description

A range of extremely compact, encapsulated three phase
bridge rectifiers offering efficient and reliable operation.
They are intended for use in general purpose and heavy
duty applications.

Major Ratings and Characteristics

Power Modules

60 A
70 A

Parameters 60MT.KB 70MT.KB Units

I

O

@ T

I

FSM

I2t @ 50Hz 870 1150 A2s

I2√t 8700 11500 A2√s
V

T
T

@ 50Hz 420 480 A
@ 60Hz 440 500 A

@ 60Hz 790 1050 A2s

range 800 to 1600 V

RRM

range - 40 to 150 °C

STG

range - 40 to 150 °C

J

60 (75) 70 (90) A
85 (61) 85 (57) °C

C

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60-70MT..KB Series

Bulletin I27500 rev. A 05/03

ELECTRICAL SPECIFICATIONS

Voltage Ratings

Voltage V

Type number Code peak reverse voltage repetitive peak rev. voltage @ T

80 800 900

100 1000 1100

60-70MT..KB 120 1200 1300 10

140 1400 1500
160 1600 1700

Forward Conduction

Parameter 60MT.KB 70MT.KB Units Conditions

IOMaximum DC output current 60 (75) 70 (90) A 120° Rect conduction angle

@ Case temperature 85 (61) 85 (57) °C
Maximum peak, one-cycle forward, 420 480 A t = 10ms No voltage

I

FSM

non-repetitive surge current 440 5 0 0 t = 8.3ms reapplied

2

I

t Maximum I2t for fusing 870 1150 A2s t = 10ms No voltage

2

√t Maximum I2√t for fusing 8700 11300 A2√s t = 0.1 to 10ms, no voltage reapplied

I
V

Low level value of threshold voltage 0.85 0.86 V (16.7% x π x I

F(TO)1

V

High level value of threshold voltage 1.07 1.08 (I > π x I

F(TO)2

Low level value of forward slope resistance 8.04 7.35 mΩ (16.7% x π x I

r

f1

r

High level value of forward slope resistance 7.08 6.53 (I > π x I

f2

V

Maximum forward voltage drop 1.75 1.55 V Ipk = 100A, TJ = 25°C, tp = 400µs single junction

FM

V

RMS isolation voltage 4000 4000 V TJ = 25°C, all terminal shorted

INS

, maximum repetitive V

RRM

VVmA

350 400 t = 10ms 100% V
370 420 t = 8.3ms reapplied Initial TJ = TJ max.

790 1050 t = 8.3ms reapplied
610 800 t = 10ms 100% V
560 730 t = 8.3ms reapplied

, maximum non- I

RSM

< I < π x I

F(AV)

), @ TJ max.

F(AV)

< I < π x I

F(AV)

), @ TJ max.

F(AV)

f = 50Hz, t = 1s

RRM

RRM

RRM

), @ TJ max.

F(AV)

), @ TJ max.

F(AV)

max.

max.

J

Thermal and Mechanical Specifications

Parameter 60MT.KC 70MT.KC Units Conditions

TJMax. junction operating temperature range -40 to 150 °C
T

Max. storage temperature range -40 to 150 °C

stg

Max. thermal resistance, junction to case 0.37 0.29 K/W DC operation per module

R

thJC

2.22 1.75 DC operation per junction

0.40 0.34 120° Rect condunction angle per module

2.42 2.01 120° Rect condunction angle per junction

R

Max. thermal resistance, case to heatsink 0.03 K/ W Per module

thCS

T Mounting torque ± 10% to heatsink 4 to 6 Nm

to terminal 3 to 4

wt Approximate weight 176 g

Mounting surface smooth, flat and greased

A mounting compound is recommended and
the torque should be rechecked after a
period of 3 hours to allow for the spread of the
compound. Lubricated threads.

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Ordering Information Table

Device Code

7 0 MT 160 K B

1 2

1 - Current rating code: 6 = 60 A Avg.

2 - Three phase diodes bridge
3 - Essential part number
4 - Voltage code: Code x 10 = V
5 - Generation II

Outline Table (without optional barriers)

3

7 = 70 A Avg.

(See Voltage Ratings Table)

RRM

60-70MT..KB Series

Bulletin I27500 rev. A 05/03

4

5

A
B
C

All dimensions in millimeters (inches)

NOTE: To order the Optional Hardware see Bulletin I27900

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D

E
F

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