IF(AV) Rectangular 7.5 A
waveform
VRRM 35 - 45 V
IFSM @ tp = 5 μs sine 690 A
VF@
7.5 Apk, TJ
= 125°C 0.57 V
TJrange - 65 to 150 °C
SCHOTTKY RECTIFIER 7.5 Amp
MBRB7..PbF
Bulletin PD-21048 rev. A 06/06
1
Major Ratings and Characteristics
Characteristics Values Units
Description/ Features
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 TJ 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)
www.irf.com
IF(AV) = 7.5Amp
VR = 35 - 45V
Case Styles
D2PAK
Anod
e
13
Base
Cathode
2
N/C
MBRBB7..PbF Series
Bulletin PD-21048 rev. A 06/06
2www.irf.com
VRMax. DC Reverse Voltage (V) 35 45
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
Parameters MBRB735PbF MBRB745PbF
IF(AV) Max. Average Forward Current 7.5 A @ TC = 131 °C (Rated VR)
IFSM Non-Repetitive Peak Surge Current 690 A 5μs Sine or 3μs Rect. pulse
150 Surge applied at rated load condition halfwave single
phase 60Hz
EAS Non-Repetitive Avalanche Energy 7 mJ TJ = 25 °C, IAS
= 2 Amps, L = 3.5 mH
IAR Repetitive Avalanche Current 2 A Current decaying linearly to zero in 1 μsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Absolute Maximum Ratings
Parameters MBR.. Units Conditions
Following any rated load
condition and with rated
VRRM applied
VFM Max. Forward Voltage Drop(1) 0.84 V @ 15A TJ = 25 °C
0.57 V @ 7.5A TJ = 125 °C
0.72 V @ 15A
IRM Max. Instantaneus Reverse Current 0.1 mA TJ = 25 °C Rated DC voltage
(1) 15 mA TJ = 125 °C
CTMax. Junction Capacitance 400 pF VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance 8.0 nH Measured from top of terminal to mounting plane
dv/dt Max. Voltage Rate of Change 10000 V/ μs
(Rated VR)
Electrical Specifications
Parameters MBR.. Units Conditions
(1) Pulse Width < 300μs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters MBR.. Units Conditions
Kg-cm
(Ibf-in)
TJMax. Junction Temperature Range - 65 to 150 °C
Tstg Max. Storage Temperature Range - 65 to 175 °C
RthJC Max. Thermal Resistance Junction 3.0 °C/W DC operation
to Case
RthCS Typical Thermal Resistance, Case 0.50 °C/W Mounting surface, smooth and greased
to Heatsink
wt Approximate Weight 2 (0.07) g (oz.)
T Mounting Torque Min. 6 (5)
Max. 12 (10)
Marking Device MBRB7.. Case style D2Pak
MBRB7..PbF Series
Bulletin PD-21048 rev. A 06/06
3
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Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Instantaneous Forward Current - I F (A)
Forward Voltage Drop - VFM (V)
1
10
100
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
T = 150˚C
T = 125˚C
T = 25˚C
J
J
J
Reverse Voltage - VR (V)
Reverse Current - I R
(mA)
0
.0001
0.001
0.01
0.1
1
10
100
0 5 10 15 20 25 30 35 40 4
5
125˚C
100˚C
75˚C
50˚C
25˚C
T = 150˚C
J
Reverse Voltage - VR (V)
Junction Capacitance - C T (p F)
100
1
000
0 1020304050
T = 25˚C
J
t1 , Rectangular Pulse Duration (Seconds)
Thermal Impedance Z
thJC
(°C/W)
0
.001
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1 10
Single Pulse
(Thermal Resistance)
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
2
t
1
t
P
DM
MBRBB7..PbF Series
Bulletin PD-21048 rev. A 06/06
4www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC
;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1
= rated VR
Average Forward Current - IF(AV) (A)
Allowable Case Temperature (°C)
Average Forward Current - IF(AV) (A)
Average Power Loss (Watts)
Square Wave Pulse Duration - tp (microsec)
Non-Repetitive Surge Current - I FSM (A)
100
1
000
10 100 1000 10000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
1
20
1
30
1
40
1
50
024681012
DC
see note (2)
Square Wave (D = 0.50)
Rated Vr Applied
0
1
2
3
4
5
6
7
0 2 4 6 8 10 12
DC
RMS Limit
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
MBRB7..PbF Series
Bulletin PD-21048 rev. A 06/06
5
www.irf.com
Part Marking Information
MBRB745
THIS IS A MBRB745
ASSEMBLED ON WW 02, 2000
LOT CODE 8024 LOGO
LOT CODE
ASSEMBLY
RECTIFIER
INTERNATIONAL
P = LEAD-FREE
WEEK 02
YEAR 0 = 2000
DATE CODE
PART NUMBER
Conform to JEDEC outline D2Pak (SMD-220)
Dimensions in millimeters and (inches)
Outline Table
MBRBB7..PbF Series
Bulletin PD-21048 rev. A 06/06
6www.irf.com
Ordering Information Table
Device Code
1524
3
1- Essential Part Number
2- B = Surface Mount
None = TO-220
3- Current Rating (7.5A)
4- Voltage code: Code = VRRM
5-y none = Tube (50 pieces)
y TRL = Tape & Reel (Left Oriented - for D2Pak only)
y TRR = Tape & Reel (Right Oriented - for D2Pak only)
6-y none = Standard Production
y PbF = Lead-Free
35 = 35V
45 = 45V
MBR B 7 45 TRL PbF
6
Dimensions in millimeters and (inches)
Tape & Reel Information
MBRB7..PbF Series
Bulletin PD-21048 rev. A 06/06
7
www.irf.com
MBR745
********************************************
* This model has been developed by *
* Wizard SPICE MODEL GENERATOR (1999) *
* (International Rectifier Corporation) *
* contains Proprietary Information *
********************************************
* SPICE Model Diode is composed by a *
* simple diode plus paralled VCG2T *
********************************************
.SUBCKT MBR745 ANO CAT
D1 ANO 1 DMOD (0.03191)
*Define diode model
.MODEL DMOD D(IS=9.72464638473799E-05A,N=1.30648926537753,BV=52V,
+ IBV=0.195508065728349A,RS= 0.000727548,CJO=1.94829876431799E-08,
+ VJ=2.27282978121533,XTI=2, EG=0.854458710837653)
********************************************
*Implementation of VCG2T
VX 1 2 DC 0V
R1 2 CAT TRES 1E-6
.MODEL TRES RES(R=1,TC1=27.6281424524011)
GP1 ANO CAT VALUE={-ABS(I(VX))*(EXP((((-5.219758E-03/27.62814)*((V(2,CAT)*1E6)/(I(VX)+1E-6)-
1))+1)*7.000165E-02*ABS(V(ANO,CAT)))-1)}
********************************************
.ENDS MBR745
Thermal Model Subcircuit
.SUBCKT MBR745 5 1
CTHERM1 5 4 1.05E+00
CTHERM2 4 3 4.44E+00
CTHERM3 3 2 1.16E+01
CTHERM4 2 1 6.12E+01
RTHERM1 5 4 1.33E+00
RTHERM2 4 3 1.19E+00
RTHERM1 3 2 3.81E-01
RTHERM1 2 1 9.54E-02
.ENDS MBR745
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 06/06
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level and Lead-Free.
Qualification Standards can be found on IR's Web site.
