Bulletin PD-21048 rev. A 06/06
MBRB7..PbF
SCHOTTKY RECTIFIER
7.5 Amp
I
F(AV)
= 7.5Amp
V
R
= 35 - 45V
Major Ratings and Characteristics
Characteristics
I
F(AV)
V
RRM
I
FSM
V
F
T
J
@ tp = 5
μs
sine
@ 7.5 Apk, T
J
= 125°C
range
Rectangular
waveform
35 - 45
690
0.57
- 65 to 150
V
A
V
°C
Description/ Features
Units
A
The MBRB7.. 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, free-wheeling diodes, and reverse bat-
tery protection.
150° C T
J
operation
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free ("PbF" suffix)
Values
7.5
Case Styles
Base
Cathode
2
1
3
N/C
Anode
D
2
PAK
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MBRBB7..PbF Series
Bulletin PD-21048 rev. A 06/06
Voltage Ratings
Parameters
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
MBRB735PbF
35
MBRB745PbF
45
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
I
FSM
Non-Repetitive Peak Surge Current
MBR..
7.5
690
150
Units Conditions
A
A
@ T
C
= 131 °C (Rated V
R
)
Following any rated load
5μs Sine or 3μs Rect. pulse condition and with rated
V
RRM
applied
Surge applied at rated load condition halfwave single
phase 60Hz
mJ
A
T
J
= 25 °C, I
AS
= 2 Amps, L = 3.5 mH
Current decaying linearly to zero in 1
μsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
E
AS
I
AR
Non-Repetitive Avalanche Energy
Repetitive Avalanche Current
7
2
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop(1)
MBR..
0.84
0.57
0.72
Units Conditions
V
V
V
mA
mA
pF
nH
V/
μs
(1) Pulse Width < 300μs, Duty Cycle <2%
@ 15A
@ 7.5A
@ 15A
T
J
= 25 °C
T
J
= 125 °C
T
J
= 25 °C
T
J
= 125 °C
Rated DC voltage
I
RM
C
T
L
S
Max. Instantaneus Reverse Current
(1)
Max. Junction Capacitance
Typical Series Inductance
0.1
15
400
8.0
10000
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25°C
Measured from top of terminal to mounting plane
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
MBR..
- 65 to 150
- 65 to 175
3.0
0.50
2 (0.07)
Min.
Max.
6 (5)
12 (10)
Units Conditions
°C
°C
°C/W DC operation
°C/W Mounting surface, smooth and greased
g (oz.)
Kg-cm
(Ibf-in)
Case style D
2
Pak
R
thJC
Max. Thermal Resistance Junction
to Case
R
thCS
Typical Thermal Resistance, Case
to Heatsink
wt
T
Approximate Weight
Mounting Torque
Marking Device
MBRB7..
2
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MBRB7..PbF Series
Bulletin PD-21048 rev. A 06/06
100
100
Reverse Current - I
R
(mA)
10
1
0.1
0.01
T J = 150˚C
125˚C
100˚C
75˚C
50˚C
25˚C
Instantaneous Forward Current - I
F
(A)
0.001
0.0001
0
10
T = 150˚C
J
T = 125˚C
J
5
10 15 20 25 30 35 40 45
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1000
Junction Capacitance - C
T
(p F)
T = 25˚C
J
T = 25˚C
J
1
0
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Forward Voltage Drop - V
FM
(V)
2
100
0
10
20
30
40
50
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
10
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
(°C/W)
Thermal Impedance Z
thJC
1
0.1
t1
t2
0.01
Single Pulse
(Thermal Resistance)
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.001
0.00001
0.0001
0.001
0.01
0.1
1
10
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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MBRBB7..PbF Series
Bulletin PD-21048 rev. A 06/06
150
Allowable Case Temperature (°C)
Average Power Loss (Watts)
7
6
5
4
3
2
1
0
0
2
4
6
8
10
12
Average Forward Current - I
F(AV)
(A)
140
DC
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
RMS Limit
DC
130
Square Wave (D = 0.50)
Rated Vr Applied
see note (2)
120
0
2
4
6
8
10
12
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Non-Repetitive Surge Current - I
FSM
(A)
1000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= rated V
R
4
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MBRB7..PbF Series
Bulletin PD-21048 rev. A 06/06
Outline Table
Conform to JEDEC outline D
2
Pak (SMD-220)
Dimensions in millimeters and (inches)
Part Marking Information
THIS IS A MBRB745
LOT CODE 8024
ASSEMBLED ON WW 02, 2000
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
PART NUMBER
MBRB745
DATE CODE
YEAR 0 = 2000
WEEK 02
P = LEAD-FREE
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