2004 IXYS All rights reserved
1 - 2
IXYS reserves the right to change limits, test conditions and dimensions.
VBO 25
420
Standard and Avalanche Types
V
RSM
V
BRmin
V
RRM
Standard
Avalanche
V
V
V
Types
Types
900
800
VBO 25-08NO2
1300
1230
1200
VBO 25-12NO2 VBO 25-12AO2
1500
1430
1400
VBO 25-14NO2 VBO 25-14AO2
1700
1630
1600
VBO 25-16NO2 VBO 25-16AO2
For Avalanche Types only
Features
Avalanche rated parts available
Package with DCB ceramic base plate
Isolation voltage 3600 V~
Planar passivated chips
Low forward voltage drop
" fast-on terminals
UL registered E 72873
Applications
Supplies for DC power equipment
Input rectifiers for PWM inverter
Battery DC power supplies
Field supply for DC motors
Advantages
Easy to mount with one screw
Space and weight savings
Improved temperature and power cycling
Symbol
Test Conditions
Maximum Ratings
I
dAV
T
C
= 85
C, module
38
A
I
dAVM
module
40
A
P
RSM
T
VJ
= T
VJM
t = 10
s
3.4
kW
I
FSM
T
VJ
= 45
C;
t = 10 ms (50 Hz), sine
370
A
V
R
= 0
t = 8.3 ms (60 Hz), sine
390
A
T
VJ
= T
VJM
t = 10 ms (50 Hz), sine
320
A
V
R
= 0
t = 8.3 ms (60 Hz), sine
340
A
I
2
t
T
VJ
= 45
C
t = 10 ms (50 Hz), sine
680
A
2
s
V
R
= 0
t = 8.3 ms (60 Hz), sine
640
A
2
s
T
VJ
= T
VJM
t = 10 ms (50 Hz), sine
510
A
2
s
V
R
= 0
t = 8.3 ms (60 Hz), sine
470
A
2
s
T
VJ
-40...+150
C
T
VJM
150
C
T
stg
-40...+125
C
V
ISOL
50/60 Hz, RMS
t = 1 min
3000
V~
I
ISOL
1 mA
t = 1 s
3600
V~
M
d
Mounting torque (M5)
1.5-2
Nm
(10-32 UNF)
13-18
lb.in.
Weight
typ.
15
g
I
dAV
= 38 A
V
RRM
= 800-1600 V
Data according to IEC 60747 and refer to a single diode unless otherwise stated
for resistive load at bridge output, with isolated fast-on tabs.
Dimensions in mm (1 mm = 0.0394")
Symbol
Test Conditions
Characteristic Values
I
R
V
R
= V
RRM
;
T
VJ
= 25
C
0.3
mA
V
R
= V
RRM
;
T
VJ
= T
VJM
5
mA
V
F
I
F
= 55 A;
T
VJ
= 25
C
1.36
V
V
T0
For power-loss calculations only
0.85
V
r
T
T
VJ
= T
VJM
8
m
R
thJC
per diode, DC current
2.8
K/W
per module
0.7
K/W
R
thJK
per diode, DC current
3.2
K/W
per module
0.8
K/W
d
S
Creeping distance on surface
13
mm
d
A
Creepage distance in air
9.5
mm
a
Max. allowable acceleration
50
m/s
2
Single Phase
Rectifier Bridge
~
~
+
+
~
~
2004 IXYS All rights reserved
2 - 2
IXYS reserves the right to change limits, test conditions and dimensions.
VBO 25
420
Fig. 1 Surge overload current per
diode
I
FSM
: Crest value, t: duration
Fig. 3 Max. forward current at case
temperature
Fig. 2 I
2
t versus time (1-10 ms)
per diode
Fig. 4 Power dissipation versus direct output current and ambient temperature
Fig. 5 Transient thermal impedance junction to heatsink per diode
Constants for Z
thJK
calculation:
i
R
thi
(K/W)
t
i
(s)
1
0.775
0.0788
2
1.390
0.504
3
1.055
3.701
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