Document Number: 94291 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 13-Aug-08 1
Schottky Rectifier, 2 x 15 A
MBR25..CTPbF Series
Vishay High Power Products
FEATURES
• 150 °C TJ operation
• Center tap TO-220 package
• Low forward voltage drop
• High frequency operation
• High purity, high temperature epoxy
encapsulation for enhanced mechanical strength and
moisture resistance
• Guard ring for enhanced ruggedness and long term
reliability
• Lead (Pb)-free (“PbF” suffix)
• Designed and qualified for industrial level
DESCRIPTION
This center tap Schottky rectifier has been optimized for low
reverse leakage at high temperature. The proprietary barrier
technology allows for reliable operation up to 150 °C junction
temperature. Typical applications are in switching power
supplies, converters, freewheeling diodes, and reverse
battery protection.
PRODUCT SUMMARY
IF(AV) 2 x 15 A
VR35/45 V
IRM 40 mA at 125 °C
TO-220AB
Anode
13
2
Base
common
cathode
2
Common
cathode
Anode
Available
Pb-free
RoHS*
COMPLIANT
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
IF(AV) Rectangular waveform (per device) 30 A
VRRM 35/45 V
IFRM TC = 130 °C (per leg) 30 A
IFSM tp = 5 µs sine 1060
VF30 Apk, TJ = 125 °C 0.73 V
TJRange - 65 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL MBR2535CTPbF MBR2545CTPbF UNITS
Maximum DC reverse voltage VR35 45 V
Maximum working peak reverse voltage VRWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average
forward current
per leg IF(AV) TC = 130 °C, rated VR
15
A
per device 30
Peak repetitive forward current per leg IFRM Rated VR, square wave, 20 kHz, TC = 130 °C 30
Non-repetitive peak surge current IFSM
5 µs sine or 3 µs rect. pulse Following any rated load condition
and with rated VRRM applied 1060
Surge applied at rated load conditions halfwave,
single phase, 60 Hz 150
Non-repetitive avalanche energy per leg EAS TJ = 25 °C, IAS = 2 A, L = 8 mH 16 mJ
Repetitive avalanche current per leg IAR
Current decaying linearly to zero in 1 µs
Frequency limited by TJ maximum VA = 1.5 x VR typical 2A
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 94291
2Revision: 13-Aug-08
MBR25..CTPbF Series
Vishay High Power Products Schottky Rectifier, 2 x 15 A
Note
(1) Pulse width < 300 µs, duty cycle < 2 %
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum forward voltage drop VFM (1) 30 A TJ = 25 °C 0.82 V
TJ = 125 °C 0.73
Maximum instantaneous reverse current IRM (1) TJ = 25 °C Rated DC voltage 0.2 mA
TJ = 125 °C 40
Threshold voltage VF(TO) TJ = TJ maximum 0.355 V
Forward slope resistance rt12.3 mΩ
Maximum junction capacitance CTVR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 700 pF
Typical series inductance LSMeasured from top of terminal to mounting plane 8.0 nH
Maximum voltage rate of change dV/dt Rated VR10 000 V/µs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction temperature range TJ- 65 to 150 °C
Maximum storage temperature range TStg - 65 to 175
Maximum thermal resistance,
junction to case per leg RthJC DC operation 1.5
°C/W
Typical thermal resistance,
case to heatsink RthCS Mounting surface, smooth and greased 0.50
Approximate weight 2g
0.07 oz.
Mounting torque minimum Non-lubricated threads 6 (5) kgf · cm
(lbf · in)
maximum 12 (10)
Marking device Case style TO-220AB MBR2535CT
MBR2545CT
Document Number: 94291 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 13-Aug-08 3
MBR25..CTPbF Series
Schottky Rectifier, 2 x 15 A Vishay High Power Products
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance vs.
Reverse Voltage (Per Leg)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg)
1
10
0.81.4
V
FM
- Forward Voltage Drop (V)
I
F
- Instantaneous Forward Current (A)
100
0.40.2 0.6 1.0 1.2
TJ = 150 °C
TJ = 125 °C
TJ = 25 °C
0.1
1
10
100
0.0001
0
V
R
- Reverse Voltage (V)
I
R
- Reverse Current (mA)
4540302010
0.01
0.001
5152535
TJ = 150 °C
TJ = 50 °C
TJ = 100 °C
TJ = 125 °C
TJ = 75 °C
TJ = 25 °C
1000
040
V
R
- Reverse Voltage (V)
C
T
- Junction Capacitance (pF)
20
100
5030
10
TJ = 25 °C
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1
t1 - Rectangular Pulse Duration (s)
ZthJC - Thermal Impedance (°C/W)
Single pulse
(thermal resistance)
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20 Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
PDM
t1
t2
0.01
10
www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 94291
4Revision: 13-Aug-08
MBR25..CTPbF Series
Vishay High Power Products Schottky Rectifier, 2 x 15 A
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
Note
(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;
Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);
PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = Rated VR
012
IF(AV) - Average Forward Current (A)
Allowable Case Temperature (°C)
120
4
See note (1)
8
150
Square wave (D = 0.50)
Rated VR applied
16 24
100
140
DC
20
110
130
0
015
4
Average Power Loss (W)
IF(AV) - Average Forward Current (A)
5
2
25
14
6
8
RMS limit
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
2010
10
12
100 1000
tp - Square Wave Pulse Duration (µs)
IFSM - Non-Repetitive Surge Current (A)
100
10 00010
1000
At any rated load condition
and with rated VRRM applied
following surge
Document Number: 94291 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 13-Aug-08 5
MBR25..CTPbF Series
Schottky Rectifier, 2 x 15 A Vishay High Power Products
ORDERING INFORMATION TABLE
35 = 35 V
45 = 45 V
1- Schottky MBR series
2- Current rating (30 A)
3- Voltage ratings
4- CT = Essential part number
5- None = Standard production
PbF = Lead (Pb)-free
Device code
51324
MBR 25 45 CT PbF
LINKS TO RELATED DOCUMENTS
Dimensions http://www.vishay.com/doc?95222
Part marking information http://www.vishay.com/doc?95225
Document Number: 91000 www.vishay.com
Revision: 11-Mar-11 1
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