Document Number: 93979 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 21-Aug-08 1
Schottky Rectifier, 2 x 15 A
MBRB25..CT/MBR25..CT-1
Vishay High Power Products
FEATURES
• 150 °C TJ operation
• Center tap D2PAK and TO-262 packages
• 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
• Designed and qualified for Q101 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
MBRB25..CT
Base
common
cathode
D
2
PAK TO-262
MBR25..CT-1
Anode Anode
Common
cathode
13
2
2
Base
common
cathode
Anode Anode
Common
cathode
13
2
2
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
IF(AV) Rectangular waveform (per device) 30 A
IFRM TC = 130 °C (per leg) 30
VRRM 35/45 V
IFSM tp = 5 µs sine 1060 A
VF30 Apk, TJ = 125 °C 0.73 V
TJRange - 65 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL MBRB2535CT
MBR2535CT-1
MBRB2545CT
MBR2545CT-1 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
www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 93979
2Revision: 21-Aug-08
MBRB25..CT/MBR25..CT-1
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
(Only for TO-262) 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 D2PAK MBRB2535CT
MBRB2545CT
Case style TO-262 MBR2535CT-1
MBR2545CT-1
Document Number: 93979 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 21-Aug-08 3
MBRB25..CT/MBR25..CT-1
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
100
10
I
F
- Instantaneous
Forward Current (A)
V
FM
- Forward Voltage Drop (V)
0.4 0.6 0.8 1.0 1.41.2
0.2
TJ = 150 °C
TJ = 125 °C
TJ = 25 °C
0.0001
0.001
1
10
100
0.1
0.01
I
R
- Reverse Current (mA)
V
R
- Reverse Voltage (V)
1051520 40 45
25 3035
0
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
100
1000
C
T
- Junction Capacitance (pF)
V
R
- Reverse Voltage (V)
2010 304050
0
TJ = 25 °C
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1
t1 - Rectangular Pulse Duration (s)
ZthJC - Thermal Impedance (°C/W)
10
Single pulse
(thermal resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
PDM
t1
t2
Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 93979
4Revision: 21-Aug-08
MBRB25..CT/MBR25..CT-1
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
100
110
120
130
150
140
Allowable Case Temperature (°C)
I
F
(
AV
)
- Average Forward Current (A)
84 12162024
0
DC
See note (1)
Square wave (D = 0.50)
Rated VR applied
0
2
6
12
10
8
4
14
Average Power Loss (W)
I
F(AV)
- Average Forward Current (A)
1051520
25
0
DC
RMS limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
100
1000
I
FSM
- Non-Repetitive Surge Current (A)
t
p
- Square Wave Pulse Duration (µs)
100 1000 10 000
10
At any rated load condition
and with rated VRRM applied
following surge
Document Number: 93979 For technical questions, contact: diodes-tech@vishay.com www.vishay.com
Revision: 21-Aug-08 5
MBRB25..CT/MBR25..CT-1
Schottky Rectifier, 2 x 15 A Vishay High Power Products
ORDERING INFORMATION TABLE
1- Essential part number
2- B = D2PAK 6 None
None = TO-262 6 = -1
3- Current rating (25 = 25 A)
4- Voltage ratings
5- CT = Essential part number
6 None = D2PAK 2= B
-1 = TO-262 2None
7- None = Tube (50 pieces)
TRL = Tape and reel (left oriented - for D2PAK only)
TRR = Tape and reel (right oriented - for D2PAK only)
8- None = Standard production
PbF = Lead (Pb)-free (for TO-262 and D2PAK tube)
P = Lead (Pb)-free (for D2PAK TRR and TRL)
35 = 35 V
45 = 45 V
Device code
51324678
MBR B 25 45 CT -1 TRL -
LINKS TO RELATED DOCUMENTS
Dimensions http://www.vishay.com/doc?95014
Part marking information http://www.vishay.com/doc?95008
Packaging information http://www.vishay.com/doc?95032
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
Disclaimer
Legal Disclaimer Notice
Vishay
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
