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®
WON-TOP ELECTRONICS
MT25, MT35 SERIES
25A, 35A GLASS PASSIVATED THREE-PHASE BRIDGE RECTIFIER
Pb
Features
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
~-~
DE
~+H
A
Mechanical Data
Case: Epoxy Case with Heat Sink Internally
Mounted in the Bridge Encapsulation
Terminals: Plated Faston Lugs Solderable
per MIL-STD-202, Method 208
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: 2.0 N.m Max.
Marking: Type Number
Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 5
G
J
K
B
Metal Heatsink
 


C

MT
Dim Min
Max
A 28.40 28.70
B — 10.00
C 22.86 23.86
D 23.80 24.80
E 16.00 Typical
G 6.35 Typical
H 5.08Ø Nominal
J 0.71 0.91
K 2.50Ø Typical
All Dimensions in mm
Maximum Ratings and Electrical Characteristics @TA=25°C unless otherwise specified
Single Phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%.
Voltage Ratings
Characteristics
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Peak Non-Repetitive Reverse Voltage
RMS Reverse Voltage
Symbol
VRRM
VRWM
VR
00
50
VRSM 75
VR(RMS) 35
MT25, MT35
Unit
01 02 04 06 08 10 12 14 16
100 200 400 600 800 1000 1200 1400 1600 V
150 275 500 725 900 1100 1300 1500 1700
70 140 280 420 560 700 840 980 1120
V
V
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
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MT25, MT35 SERIES
Forward Conduction
Characteristic
Average Rectified Output Current
MT25 @TC = 70°C, MT35 @ TC = 60°C
Symbol
IO
Non-Repetitive Peak Forward Surge Current
(No Voltage Reapplied t = 8.3ms at 60Hz)
(No Voltage Reapplied t = 10ms at 50Hz)
(100% VRRM Reapplied t = 8.3ms at 60Hz)
(100% VRRM Reapplied t = 10ms at 50Hz)
IFSM
I2t Rating for Fusing
(No Voltage Reapplied t = 8.3ms at 60Hz)
(No Voltage Reapplied t = 10ms at 50Hz)
(100% VRRM Reapplied t = 8.3ms at 60Hz)
(100% VRRM Reapplied t = 10ms at 50Hz)
I2t
Maximum Forward Voltage Drop
@TJ = 25°C, @IFM = 40Apk per single junction
Peak Reverse Current (per leg) @TJ = 25°C
At Rated DC Blocking Voltage @TJ = 125°C
RMS Isolation Voltage Terminals to Case, t = 1min
VF
IR
VISO
Thermal Characteristics
Thermal Resistance Junction to Case
@ 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
TJ
TSTG
®
WON-TOP ELECTRONICS
MT25
25
375
360
314
300
580
635
410
450
1.26
10
5.0
2500
MT35
35
500
475
420
400
1030
1130
730
800
1.19
Unit
A
A
A2s
V
µA
mA
V
1.42
0.2
-40 to +150
-40 to +150
1.35
K/W
K/W
°C
°C
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© Won-Top Electronics Co., Ltd.
Revision: September, 2012

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®
WON-TOP ELECTRONICS
50
40
MT35 Series
30
MT25 Series
20
10
120° Rectangular Wave
0
0
500
400
15 30 45 60 75 90 105 120 135 150
TC, CASE TEMPERATURE (°C)
Fig. 1 Forward Current Derating Curve
100% VRRM Reapplied
TJ = 150°C
300
MT35 Series
200
MT25 Series
100
0
1 10 100
NUMBER OF CYCLES AT 60Hz
Fig. 3 Forward Surge Current Derating Curve
10
MT25 Series
1 Steady State Value:
RθJC = 1.42 K/W
(DC Operation per Bridge)
0.1
0.01
MT25, MT35 SERIES
1000
TJ = 25°C
TJ = 150°C
100
MT35 Series
10
MT25 Series
Pulse Width = 300µs
1% Duty Cycle
1
0
0.4 0.8 1.2 1.6 2.0
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
100
90 120° Rectangular Wave
TJ = 150°C
80
70
60 MT25 Series
50
40
MT35 Series
30
20
10
0
0 5 10 15 20 25 30 35
IF(AV), AVERAGE FORWARD CURRENT (A)
Fig. 4 Forward Power Dissipation
MT35 Series
Steady State Value:
RθJC = 1.35 K/W
(DC Operation per Bridge)
0.001
0.001
0.01
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
0.1 1
SQUARE WAVE PULSE DURATION (s)
Fig. 5 Thermal Impedance ZθJC Characteristics
10
100
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MT25, MT35 SERIES
MARKING INFORMATION
®
WON-TOP ELECTRONICS
MTxxyy
= Device Number
+ xx = 25 or 35
MTxxyy
yy
Polarity
= 00, 01, 02, 04, 06, 08, 10, 12, 14 or 16
= As Marked on Body
PACKAGING INFORMATION
BULK
Inner Box Size
L x W x H (mm)
195 x 195 x 40
Quantity
(PCS)
50
Note: 1. Paper box, white or brown color.
Carton Size
L x W x H (mm)
405 x 205 x 240
Quantity
(PCS)
500
Approx. Gross Weight
(KG)
12.0
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© Won-Top Electronics Co., Ltd.
Revision: September, 2012

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®
WON-TOP ELECTRONICS
MT25, MT35 SERIES
ORDERING INFORMATION
Product No.
MT25xx
MT35xx
Package Type
Square Bridge
Square Bridge
Shipping Quantity
50 Units/Box
50 Units/Box
1. Shipping quantity given is for minimum packing quantity only. For minimum
order quantity, please consult the Sales Department.
2. To order RoHS / Lead Free version (with Lead Free finish), add “-LF”
suffix to part number above. For example, MT2500-LF.
WON-TOP ELECTRONICS and
are registered trademarks of Won-Top Electronics Co., Ltd (WTE). WTE has checked all information carefully and
believes it to be correct and accurate. However, WTE cannot assume any responsibility for inaccuracies. Furthermore, this information does not give the
purchaser of semiconductor devices any license under patent rights to manufacturer. WTE reserves the right to change any or all information herein
without further notice.
WARNING: DO NOT USE IN LIFE SUPPORT EQUIPMENT. WTE power semiconductor products are not authorized for use as critical components in life
support devices or systems without the express written approval.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road,
Chine Chen Dist., Kaohsiung 806, Taiwan
Phone: 886-7-822-5408 or 886-7-822-5410
Fax: 886-7-822-5417
Email: sales@wontop.com
Internet: http://www.wontop.com
We power your everyday.
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
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