WTE
POWER SEMICONDUCTORS
MT25, 35 SERIES
Pb
25, 35A GLASS PASSIVATED THREE-PHASE BRIDGE RECTIFIER
Features
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Glass Passivated Die Construction
Low Forward Voltage Drop
High Current Capability
High Reliability
High Surge Current Capability
Ideal for Printed Circuit Boards
Recognized File # E157705
D
~
-
~
H
E
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+
A
Mechanical Data
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Case: Epoxy Case with Heat Sink Internally
Mounted in the Bridge Encapsulation
Terminals: Plated Faston Lugs Solderable
per MIL-STD-202, Method 208
B
Polarity: As Marked on Body
Weight: 21 grams (approx.)
Mounting Position: Bolt Down on Heatsink
With Silicone Thermal Compound Between
Bridge and Mounting Surface for Maximum
Heat Transfer Efficiency
Mounting Torque: 23 cm-kg (20 in-lbs) Max.
Marking: Type Number
Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 7
G
C
MT
Dim
Min
Max
28.40
28.70
A
—
10.00
B
22.86
23.86
C
—
25.30
D
16.00 Typical
E
6.35 x 0.80
G
5.10 Ø
5.30 Ø
H
All Dimensions in mm
Metal Heatsink
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Maximum Ratings and Electrical Characteristics
Single Phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
@T
A
=25°C unless otherwise specified
Voltage Ratings
Characteristics
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Peak Non-Repetitive Reverse Voltage
RMS Reverse Voltage
Symbol
V
RRM
V
RWM
V
R
V
RSM
V
R(RMS)
MT25, 35
00
50
75
35
01
100
150
70
02
200
275
140
04
400
500
280
06
600
725
420
08
800
900
560
10
12
14
16
Unit
1000 1200 1400 1600
1100 1300 1500 1700
700
840
980
1120
V
V
V
MT25, 35 SERIES
1 of 7
© 2006 Won-Top Electronics
Forward Conduction
Characteristic
Average Rectified Output Current
MT25 @T
C
= 70°C, MT35 @ T
C
= 60°C
Non-Repetitive Peak Forward Surge Current
(No Voltage Reapplied t = 8.3ms at 60Hz)
(No Voltage Reapplied t = 10ms at 50Hz)
(100% V
RRM
Reapplied t = 8.3ms at 60Hz)
(100% V
RRM
Reapplied t = 8.3ms at 50Hz)
Symbol
I
O
MT25
MT35
Unit
A
25
35
I
FSM
375
360
314
300
500
475
420
400
A
I
2
t Rating for Fusing
(No-Voltage Reapplied t = 8.3ms at 60Hz)
(No-Voltage Reapplied t = 10ms at 50Hz)
(100% V
RRM
Reapplied t = 8.3ms at 60Hz)
(100% V
RRM
Reapplied t = 10ms at 50Hz)
Maximum Forward Voltage Drop
@T
j
= 25°C, @I
FM
= 40A
pk
per single junction
Peak Reverse Current (per leg) @T
j
= 25°C
At Rated DC Blocking Voltage @T
j
= 125°C
RMS Isolation Voltage from Case to Lead
I
2
t
580
635
410
450
1030
1130
730
800
A
2
s
V
F
I
R
V
ISO
1.26
10
5.0
2500
1.19
V
µA
mA
V
Thermal Characteristics
Thermal Resistance Junction to Case at
DC Operation per Bridge
Thermal Resistance Case to Heatsink
Mounting Surface, Smooth, Flat and Greased
Operating Temperature Range
Storage Temperature Range
R
JC
R
CS
T
j
T
STG
1.42
0.2
-40 to +150
-40 to +150
1.16
K/W
K/W
°C
°C
MT25, 35 SERIES
2 of 7
© 2006 Won-Top Electronics
°C)
160
MT25 Series
Inst antan eous F orwar d Curr ent (A)
1000
MT25 Series
M mu Allo ble Ca Te per tu (
axi m wa
se m a re
140
100
Per Junction
120
120°
(Rect)
100
10
T
J
= 15O°C
T
J
= 25°C
1
0
0.5
1
1.5
2
2.5
3
3.5
4
80
60
0
5
10
15
20
25
30
Total Output Current (A)
Instantaneous Forward Voltage (V)
Fig. 1 - Current Ratings Characteristics
55
50
45
40
35
30
25
20
15
10
5
0
0
5
10
15
20
25
0
25
50
120°
(Rect)
MT25 Series
T
J
= 150°C
2
Fig. 2 - Forward Voltage Drop Characteristics
Ma xi mu m To ta l Po wer Lo ss (W
)
K/
W
3K
/W
4K
/W
5K
/W
7 K/W
10 K/W
1
W
K/
R
t
A
hS
W
K/
.7
=0
a
elt
-D
R
75
100
125
150
Total Output Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 3 - Total Power Loss Characteristics
320
300
P akHalf Sne W ve F
e
i
a orward Cu nt (A
rre
)
280
260
240
220
200
180
160
140
120
100
80
1
10
100
Num
ber Of Equal Amplitude Half Cycle Current Pulses (N)
P akHa S e Wv e F rw Cu nt (A
e
lf in a o ard rre
)
At Any Rated Load Condition And W
ith
Rated V
RRM
Applied Following Surge.
Initial T
J
= 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
400
360
320
280
240
200
160
120
80
0.01
Maximum Non Repetitive Surge Current
Versus Pulse Train Duration.
Initial T = 150°C
J
No Voltage Reapplied
Rated V
RRM
Reapplied
MT25 Series
MT25 Series
0.1
Pulse Train Duration (s)
1
Fig. 4 - Maximum Non-Repetitive Surge Current
Fig. 5 - Maximum Non-Repetitive Surge Current
MT25, 35 SERIES
3 of 7
© 2006 Won-Top Electronics
150
M
axim Allowable Case Tem
um
perature ( C)
°
MT35 Series
130
1000
MT35 Series
Instantaneous Forward Current (A)
100
Per Junction
110
120°
(Rect)
90
10
T J= 15O°C
T J= 25°C
1
0
0.5
1
1.5
2
2.5
3
3.5
4
70
50
0
5
10
15
20
25
30
35
40
Total Output Current (A)
Instantaneous Forward Voltage (V)
Fig. 6 - Current Ratings Characteristics
80
Ma ximum Total Powe r Loss (W)
70
60
50
40
30
20
10
0
0
5
10
15
20
25
30
35
0
25
50
120°
(Rect)
MT35 Series
T
J
= 150°C
R
t
A
hS
Fig. 7 - Forward Voltage Drop Characteristics
1K
/W
=
W
K/
0.7
a
elt
-D
R
2K
/W
3K
/W
4K
/W
5 K/W
7 K/W
10 K/W
75
100
125
150
Total Output Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 8 - Total Power Loss Characteristics
450
Pe Ha Sine W ve Forwa C
ak lf
a
rd urrent (A)
400
350
300
250
200
150
100
1
10
100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Peak H Sin eW ve Fo ard Cu nt (A)
alf
a
rw
rre
At Any Rated Load Condition And With
Rated V
RRM
Applied Following Surge.
Initial T
J
= 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
500
450
400
350
300
250
200
150
100
0.01
Maximum Non Repetitive Surge Current
Versus Pulse Train Duration.
Initial T
J
= 150°C
No Voltage Reapplied
Rated V
RRM
Reapplied
MT35 Series
MT35 Series
0.1
Pulse Train Duration (s)
1
Fig. 9 - Maximum Non-Repetitive Surge Current
Fig. 10 - Maximum Non-Repetitive Surge Current
MT25, 35 SERIES
4 of 7
© 2006 Won-Top Electronics
10
Transient Therm Im
al pedance Z
thJC
(K/W)
Steady State Value:
R
thJC
= 1.42 K/W
1
(DC Operation)
0.1
0.01
M
T25 Series
Per Bridge
0.001
0.001
0.01
0.1
1
10
100
Square W
ave Pulse Duration (s)
Fig. 11 - Thermal Impedance Z
thJC
Characteristics
10
Transient Therm Im
al pedance Z
thJC
(K/W)
Steady State Value:
R
thJC
= 1.16 K/W
1
(DC Operation)
0.1
0.01
MT35 Series
Per Bridge
0.001
0.001
0.01
0.1
1
10
100
Square Wave Pulse Duration (s)
Fig. 12 - Thermal Impedance Z
thJC
Characteristics
MT25, 35 SERIES
5 of 7
© 2006 Won-Top Electronics
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