MSD70S
Glass Passivated Three
Phase Rectifier Bridge
V
RRM
800 to 1800V
I
D
70 Amp
Applications
Three phase rectifiers for power supplies
Rectifiers for DC motor field supplies
Battery charger rectifiers
Input rectifiers for variable frequency drives
Circuit
Features
MSD-S
Three phase bridge rectifier
Blocking voltage:800 to 1800V
Heat transfer and insulation through direct
copper bonded aluminum oxide ceramic(DBC)
Glass passivated chip
High surge currents
Module Type
TYPE
MSD70S-08
MSD70S-12
MSD70S-16
MSD70S-18
V
RRM
800V
1200V
1600V
1800V
V
RSM
900V
1300V
1700V
1900V
Maximum Ratings
Symbol
ID
IFSM
it
Visol
Tvj
Tstg
Ms
T
solder
Weight
To heatsink(M4)
Terminals,10s
2
Conditions
Values
70
370
685
2500
-40 to +150
-40 to +125
2
260
21
Units
A
A
A
2
s
V
℃
℃
Nm
℃
g
Three phase, full wave T
S
=80℃
t=10mS Tvj =25℃
t=10mS Tvj =25℃
a.c.50HZ;r.m.s.;1min
Module (Approximately)
Thermal Characteristics
Symbol
Rth(j-s)
Per diode
Conditions
Values
1.62
0.27
Units
℃/W
℃/W
Module (Approximately)
Electrical Characteristics
Symbol
VFM
IRD
T=25℃ IF =25A
Tvj=25℃ VRD=VRRM
Tvj=150℃ VRD=VRRM
1
Conditions
Values
Min.
－
－
Typ.
－
－
Max.
1.25
0.3
4
Units
V
mA
mA
Document Number: MSD70S
Oct.13, 2014
www.smsemi.com
MSD70S
Performance Curves
200
A
150
170
W
100
85
typ.
50
max.
I
F
0
0
V
F
0.5
1.0
1.5
V 2.0
25℃
- - -125℃
P
vtot
0
0 I
D
40
A 80
Fig1. Forward Characteristics
0.3
℃/
W
Per module
Z
th(j-
s
)
600
Fig2. Power dissipation
50HZ
A
0.2
400
0.1
200
0
0.001
0.01
0.1
1.0
10
S 100
0
1
10
cycles 100
Fig3. Transient thermal impedance
Fig4. Max Non-Repetitive Forward Surge
Current
100
A
80
60
40
20
I
D
0
0
Ts
50
100
℃
150
Fig5.Forward Current Derating Curve
Document Number: MSD70S
Oct.13, 2014
www.smsemi.com
2
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