Document Number: 94312 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 16-Mar-10 1
Schottky Rectifier, 7.5 A
VS-MBRB735PbF, VS-MBRB745PbF
Vishay High Power Products
FEATURES
• 150 °C TJ operation
• High frequency operation
• Low forward voltage drop
• High purity, high temperature epoxy
encapsulation for enhanced mechanical
strength and moisture resistance
• Guard ring for enhanced ruggedness and long
term reliability
• Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
• Halogen-free according to IEC 61249-2-21 definition
• Compliant to RoHS directive 2002/95/EC
• AEC-Q101 qualified
DESCRIPTION
The VS-MBRB7... Schottky rectifier series 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) 7.5 A
VR35 V/45 V
IRM 15 mA at 125 °C
D
2
PAK Anode
13
Base
cathode
2
N/C
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
IF(AV) Rectangular waveform 7.5 A
VRRM 35/45 V
IFSM tp = 5 μs sine 690 A
VF7.5 Apk, TJ = 125 °C 0.57 V
TJRange - 65 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL VS-MBRB735PbF VS-MBRB745PbF 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 IF(AV) TC = 131 °C, rated VR7.5
A
Non-repetitive peak surge current IFSM
5 μs sine or 3 μs rect. pulse Following any rated load condition
and with rated VRRM applied 690
Surge applied at rated load condition halfwave single phase 60 Hz 150
Non-repetitive avalanche energy EAS TJ = 25 °C, IAS = 2 A, L = 3.5 mH 7 mJ
Repetitive avalanche current 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: diodestech@vishay.com Document Number: 94312
2Revision: 16-Mar-10
VS-MBRB735PbF, VS-MBRB745PbF
Vishay High Power Products Schottky Rectifier, 7.5 A
Note
(1) Pulse width < 300 μs, duty cycle < 2 %
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum forward voltage drop VFM (1)
15 A TJ = 25 °C 0.84
V7.5 A TJ = 125 °C 0.57
15 A 0.72
Maximum instantaneous reverse current IRM (1) TJ = 25 °C Rated DC voltage 0.1 mA
TJ = 125 °C 15
Maximum junction capacitance CTVR = 5 VDC (test signal range 100 kHz to 1 MHz), 25 °C 400 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 RthJC DC operation 3.0
°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 6 (5) kgf · cm
(lbf · in)
maximum 12 (10)
Marking device Case style D2PAK MBRB735
MBRB745
Document Number: 94312 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 16-Mar-10 3
VS-MBRB735PbF, VS-MBRB745PbF
Schottky Rectifier, 7.5 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
IF - Instantaneous
Forward Current (A)
VFM - Forward Voltage Drop (V)
0.2 0.4 0.8 1.2 1.6 2.0
0.6 1.0 1.4 1.8
0
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 30 35
0
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
100
1000
10 20 30 40 50
0
TJ = 25 °C
V
R
- Reverse Voltage (V)
C
T
- Junction Capacitance (pF)
0.001
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: diodestech@vishay.com Document Number: 94312
4Revision: 16-Mar-10
VS-MBRB735PbF, VS-MBRB745PbF
Vishay High Power Products Schottky Rectifier, 7.5 A
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
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
120
130
140
150
Allowable Case Temperature (°C)
IF
(
AV
)
- Average Forward Current (A)
628410
12
0
DC
See note (1)
Square wave (D = 0.50)
Rated VR applied
0
1
3
6
5
4
2
7
Average Power Loss (W)
I
F(AV)
- Average Forward Current (A)
4268
1210
0
DC
RMS limit
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
100
1000
IFSM - Non-Repetitive Surge Current (A)
tp - Square Wave Pulse Duration (µs)
100 1000 10 000
10
At any rated load condition
and with rated VRRM applied
following surge
Document Number: 94312 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 16-Mar-10 5
VS-MBRB735PbF, VS-MBRB745PbF
Schottky Rectifier, 7.5 A Vishay High Power Products
ORDERING INFORMATION TABLE
2- Essential part number
3
4- Current rating (7 = 7.5 A)
5-
7-
Voltage ratings
PbF = Lead (Pb)-free
6-
35 = 35 V
45 = 45 V
None = Tube (50 pieces)
TRL = Tape and reel (left oriented - for D2PAK only)
- B = Surface mount
None = TO-220
TRR = Tape and reel (right oriented - for D2PAK only)
1- HPP product suffix
Device code
51324
67
VS- MBR B 7 45 TRL PbF
LINKS TO RELATED DOCUMENTS
Dimensions www.vishay.com/doc?95046
Part marking information www.vishay.com/doc?95054
Packaging information www.vishay.com/doc?95032
SPICE model www.vishay.com/doc?95298
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
Disclaimer
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Vishay
All product specifications and data are subject to change without notice.
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(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
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applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
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