www.irf.com
1
THREE PHASE BRIDGE
Power Modules
25 A
35 A
MT SERIES
Bulletin I2771 rev. E 04/03
Description
A range of extremely compact, encapsulated three
phase bridge rectifiers offering efficient and reli-
able operation. They are intended for use in gen-
eral purpose and instrumentation applications.
Major Ratings and Characteristics
Parameters
26MT
36MT
Units
I
O
25
35
A
@ T
C
70
60
C
I
FSM
@
50Hz
360
475
A
@ 60Hz
375
500
A
I
2
t
@ 50Hz
635
1130
A
2
s
@ 60Hz
580
1030
A
2
s
V
RRM
range
100 to 1600
V
T
J
-55 to 150
C
Features
Universal, 3 way terminals:
push-on, wrap around or solder
High thermal conductivity package,
electrically insulated case
Center hole fixing
Excellent power/volume ratio
UL E 62320 approved
Terminals Solderable as per MIL-STD-202 METHOD 208,
solder: Sn/Pb (60/40); solder temperature: 235-260C mx. time: 8-10 sec.
2
26MT../36MT.. Series
Bulletin I2771 rev. E 04/03
www.irf.com
I
O
Maximum DC output current
25
35
A
120
o
Rect Conduction angle
@ T
C
70
60
C
I
FSM
Maximum peak, one-cycle
360
475
A
t = 10ms
No voltage
non-repetitive forward current
375
500
t = 8.3ms
reapplied
Initial T
J
= T
J
max.
300
400
t = 10ms
100% V
RRM
314
420
t = 8.3ms
reapplied
Initial T
J
= T
J
max.
I
2
t
Maximum I
2
t for fusing
635
1130
A
2
s
t = 10ms
No voltage
Initial T
J
= T
J
max.
580
1030
t = 8.3ms
reapplied
450
800
t = 10ms
100% V
RRM
410
730
t = 8.3ms
reapplied
I
2
t
Maximum I
2
t for fusing
6360
11300
A
2
s I
2
t for time t
x
= I
2
t x
t
x
; 0.1 <= t
x
<= 10ms, V
RRM
= 0V
V
F(TO) 1
Low-level of threshold voltage
0.88
0.86
V
(16.7% x
x I
F(AV)
< I <
x I
F(AV)
), @ T
J
max.
V
F(TO)2
High-level of threshold voltage
1.13
1.03
(I >
x I
F(AV)
), @ T
J
max.
r
t1
Low-level forward slope resistance
7.9
6.3
m
(16.7% x
x I
F(AV)
< I <
x I
F(AV)
), @ T
J
max.
r
t2
High-level forward slope resistance
5.2
5.0
(I >
x I
F(AV)
), @ T
J
max.
V
FM
Maximum forward voltage drop
1.26
1.19
V
T
J
= 25
o
C, I
FM
= 40A
pk
- Per single Junction
I
RRM
Max. DC reverse current
100
A
T
J
= 25
o
C, per Junction at rated V
RRM
V
INS
RMS isolation voltage
2700
V
T
J
= 25
o
C, All terminal shorted
f= 50Hz , t= 1s
Parameters
26MT
36MT
Units Conditions
Forward Conduction
Voltage
V
RRM
, maximum repetitive
V
RSM
, maximum non-
I
RRM
max.
Type number
Code
peak reverse voltage
repetitive peak rev. voltage
@ T
J
max.
V
V
mA
10
100
150
20
200
275
40
400
500
26MT../ 36MT..
60
600
725
2
80
800
900
100
1000
1100
120
1200
1300
140
1400
1500
160
1600
1700
ELECTRICAL SPECIFICATIONS
Voltage Ratings
3
26MT../36MT.. Series
Bulletin I2771 rev. E 04/03
www.irf.com
Parameters
26MT
36MT Units
Conditions
T
J
Max. junction temperature range
-55 to 150
o
C
T
stg
Max. storage temperature range
-55 to 150
o
C
R
thJC
Max. thermal resistance
DC operation per bridge
junction to case
(Based on total power loss of bridge)
R
thCS
Max. thermal resistance, case to
heatsink
wt
Approximate weight
20
g
T
Mounting Torque
10%
2.0
Nm
Bridge to heatsink with screw M4
1
3
2
36
MT
160
26 =
25A (Avg)
36 =
35A (Avg)
1
-
Current rating code:
2
-
Basic part number
3
-
Voltage code ( code x 10 = V
RRM
)
Suggested plugging force:
400 N max; axially applied to faston terminals
All dimensions in millimeters (inches)
Not To Scale
Thermal and Mechanical Specifications
1.42
1.35
K/W
0.2
0.2
K/W
Mounting surface, smooth, flat and greased
Outline Table
Ordering Information Table
Device Code
4
26MT../36MT.. Series
Bulletin I2771 rev. E 04/03
www.irf.com
Fig. 1 - Current Ratings Characteristics
Fig. 2 - Forward Voltage Drop Characteristics
Fig. 3 - Total Power Loss Characteristics
Fig. 4 - Maximum Non-Repetitive Surge Current
Fig. 5 - Maximum Non-Repetitive Surge Current
60
80
100
120
140
160
0
5
10
15
20
25
30
120
(Rect)
26MT.. Series
Total Output Current (A)
Max
i
m
u
m
A
l
l
o
w
a
b
l
e
C
as
e
T
e
m
per
at
ur
e
(
C)
1
10
100
1000
0
0.5
1
1.5
2
2.5
3
3.5
4
Instantaneous Forward Voltage (V)
In
s
t
a
n
t
an
eo
us
F
o
r
w
ar
d
C
u
r
r
e
nt
(
A
)
26MT.. Series
Per Junction
T = 15OC
T = 25C
J
J
0
25
50
75
100
125
150
Maximum Allowable Ambient Temperature (C)
10 K/W
7 K/W
5 K/W
4 K
/W
3
K/W
2
K/W
1
K/W
R
=
0.7
K
/W
-
D
elt
a
R
th
S
A
0
5
10
15
20
25
30
35
40
45
50
55
0
5
10
15
20
25
120
(Rect)
Total Output Current (A)
Ma
x
i
mu
m
T
o
t
a
l
Po
we
r
L
o
s
s
(
W)
26MT.. Series
T = 150C
J
80
100
120
140
160
180
200
220
240
260
280
300
320
1
10
100
P
e
a
k
H
a
lf
S
i
n
e
W
a
v
e
F
o
rwa
r
d
C
u
rre
n
t
(A
)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
26MT.. Series
Initial T = 150C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V
Applied Following Surge.
RRM
J
80
120
160
200
240
280
320
360
400
0.01
0.1
1
Pe
a
k
H
a
l
f
Si
n
e
Wa
v
e
F
o
r
w
a
r
d
C
u
r
r
e
nt
(
A
)
Pulse Train Duration (s)
Maximum Non Repetitive Surge Current
26MT.. Series
Initial T = 150C
No Voltage Reapplied
Rated V
Reapplied
RRM
Versus Pulse Train Duration.
J
5
26MT../36MT.. Series
Bulletin I2771 rev. E 04/03
www.irf.com
Fig. 6 - Current Ratings Characteristics
Fig. 7 - Forward Voltage Drop Characteristics
Fig. 8 - Total Power Loss Characteristics
Fig. 9 - Maximum Non-Repetitive Surge Current
Fig. 10 - Maximum Non-Repetitive Surge Current
50
70
90
110
130
150
0
5
10
15
20
25
30
35
40
120
(Rect)
36MT.. Series
M
a
x
i
m
u
m
A
l
l
ow
ab
l
e
C
a
se
Tem
p
e
r
at
ur
e
(
C)
Total Output Current (A)
1
10
100
1000
0
0.5
1
1.5
2
2.5
3
3.5
4
Instantaneous Forward Voltage (V)
I
n
st
ant
aneous
For
w
ar
d
C
ur
r
ent
(
A
)
36MT.. Series
T = 15OC
T = 25C
J
J
Per Junction
0
25
50
75
100
125
150
Maximum Allowable Ambient Temperature (C)
R
=
0.7
K/
W
- D
elt
a
R
thS
A
10 K/W
7 K/W
5 K/W
4 K/W
3 K/W
2 K
/W
1
K/W
0
10
20
30
40
50
60
70
80
0
5
10
15
20
25
30
35
120
(Rect)
Total Output Current (A)
M
a
x
i
mu
m
T
o
t
al
P
o
w
e
r
L
os
s
(
W
)
36MT.. Series
T = 150C
J
100
150
200
250
300
350
400
450
1
10
100
Peak
Hal
f
Si
n
e
W
a
ve
Fo
r
w
ar
d
C
u
r
r
e
n
t
(
A
)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
36MT.. Series
Initial T = 150C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V
Applied Following Surge.
RRM
J
100
150
200
250
300
350
400
450
500
0.01
0.1
1
Pe
ak
Ha
l
f
Si
n
e
Wa
ve
F
o
rwar
d
C
u
r
r
e
n
t
(
A
)
Pulse Train Duration (s)
Maximum Non Repetitive Surge Current
Initial T = 150C
No Voltage Reapplied
Rated V
Reapplied
RRM
Versus Pulse Train Duration.
J
36MT.. Series
6
26MT../36MT.. Series
Bulletin I2771 rev. E 04/03
www.irf.com
Fig. 11 - Thermal Impedance Z
thJC
Characteristics
Fig. 12 - Thermal Impedance Z
thJC
Characteristics
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 04/03
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial and Consumer Level.
Qualification Standards can be found on IR's Web site.
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
100
26MT.. Series
Per Bridge
Steady State Value:
RthJC = 1.42 K/W
(DC Operation)
Square Wave Pulse Duration (s)
Transient Thermal Impedance Z
thJC
(K/W)
Square Wave Pulse Duration (s)
Transient Thermal Impedance Z
thJC
(K/W)
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
100
36MT.. Series
Per Bridge
Steady State Value:
RthJC = 1.35 K/W
(DC Operation)
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