Bulletin PD-20866 rev. B 05/06
MBR20..CTPbF Series
20 Amp
SCHOTTKY RECTIFIER
IF(AV) = 20Amp
VR = 35-45V
Description/ Features
Major Ratings and Characteristics
Characteristics
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, free-wheeling diodes, and reverse
battery protection.
Values
Units
20
A
20
A
VRRM
35-45
V
IFSM @ tp = 5 μs sine
1060
A
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
VF
@ 10 Apk, TJ = 125°C
0.57
V
High frequency operation
TJ
range
- 65 to 150
°C
IF(AV) Rectangular waveform
(Per Device)
IFRM @ TC = 135°C
(Per Leg)
150° C TJ operation
Center tap TO-220 and D2Pak packages
Low forward voltage drop
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free ("PbF" suffix)
Case Styles
MBR20..CTQPbF
Base
Common
Cathode
2
1
Anode
2
Common
Cathode
3
Anode
TO-220
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1
MBR20..CTPbF Series
Bulletin PD-20866 rev. B 05/06
Voltage Ratings
Parameters
VR
MBR2035CTPbF
Max. DC Reverse Voltage (V)
MBR2045CTPbF
35
VRWM Max. Working Peak Reverse Voltage (V)
45
Absolute Maximum Ratings
Parameters
Values
Units
10
20
20
A
@ T C = 135° C, (Rated VR)
A
Rated V R , square wave, 20kHz
TC = 135° C
IF(AV) Max. Average Forward (Per Leg)
Current
(Per Device)
IFRM Peak Repetitive Forward
Current
(Per Leg)
IFSM
Non Repetitive Peak
Surge Current
1060
A
150
Conditions
5μs Sine or 3μs Following any rated load condition
and with rated V RRM applied
Rect. pulse
Surge applied at rated load conditions halfwave,
single phase, 60Hz
EAS
Non-Repetitive Avalanche Energy
8
mJ
IAR
Repetitive Avalanche Current
(Per Leg)
2
A
(Per Leg) TJ = 25 °C, IAS = 2 Amps, L = 4 mH
Values
Units
Max. Forward Voltage Drop
0.84
V
@ 20A
(1)
0.57
V
@ 10A
0.72
V
@ 20A
Current decaying linearly to zero in 1 μsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
VFM
IRM
Max. Instantaneus Reverse Current
(1)
Conditions
TJ = 25 °C
TJ = 125 °C
0.1
mA
TJ = 25 °C
15
mA
TJ = 125 °C
TJ = TJ max.
Rated DC voltage
VF(TO) Threshold Voltage
0.354
V
rt
Forward Slope Resistance
17.6
mΩ
CT
Max. Junction Capacitance
600
pF
VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C
LS
Typical Series Inductance
8.0
nH
Measured from top of terminal to mounting plane
10000
V/ μs
dv/dt Max. Voltage Rate of Change
(Rated VR)
(1) Pulse Width < 300μs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
Values
Units
TJ
Max. Junction Temperature Range
-65 to 150
°C
Tstg
Max. Storage Temperature Range
-65 to 175
°C
Conditions
RthJC Max. Thermal Resistance
Junction to Case
(Per Leg)
2.0
°C/W DC operation
RthCS Typical Thermal Resistance
Case to Heatsink
0.50
°C/W Mounting surface, smooth and greased
Only for TO-220
wt
Approximate Weight
T
Mounting Torque
Marking Device
2
2 (0.07)
Min.
6 (5)
Max.
12 (10)
g (oz.)
Kg-cm Non-lubricated threads
(Ibf-in)
MBR2045CT
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MBR20..CTPbF Series
Bulletin PD-20866 rev. B 05/06
100
Reverse Current - IR (mA)
TJ = 150°C
10
125°C
1
100°C
75°C
0.1
50°C
0.01
25°C
0.001
TJ = 150°C
0.0001
TJ = 125°C
10
0
5
10
15 20 25 30 35 40 45
Reverse Voltage - VR (V)
TJ = 25°C
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1000
Junction Capacitance - C T (pF)
InstantaneousForward Current - IF (A)
100
1
0.2
TJ = 25°C
100
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
0
10
20
30
40
50
Reverse Voltage - VR (V)
Forward Voltage Drop - VFM (V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Thermal Impedance Z thJC (°C/ W)
10
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
0.1
PDM
t1
Single Pulse
(Thermal Resistanc e)
Notes:
t2
1. Duty factor D = t 1/ t 2
2. Peak TJ = PDM x Z thJC+ TC
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t 1 , Rec tangular Pulse Duration (Seco nds)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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3
MBR20..CTPbF Series
Bulletin PD-20866 rev. B 05/06
10
145
Average Power Loss - (Wa tts)
Allowable Case Temperature - (°C)
150
DC
140
135
Square wave (D = 0.50)
Rated VR applied
130
125
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
8
6
RMSLimit
DC
4
2
see note (2)
120
0
3
6
9
12
0
15
0
Average Forward Current - I F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Non-Repetitive Surge Current - I FSM (A)
2
4
6
8
10
12
14
16
Average Forward Current - I F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
1000
At Any Rated Load Cond ition
And With Rated V RRM 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: TC = TJ - (Pd + PdREV) x RthJC ;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = V R1 x IR (1 - D); IR @ VR1 = rated V R
4
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MBR20..CTPbF Series
Bulletin PD-20866 rev. B 05/06
Outline Table
Conform to JEDEC outline TO-220AB
Part Marking Information
IRXC Assembly Line - SubCon Assembly Line
EXAMPLE: THIS IS A MBR2045CT
LOT CODE 1789
ASSEMBLED ON WW 19, 2001
IN THE ASSEMBLY LINE "C"
IRMX Assembly Line
EXAMPLE: THIS IS A MBR2045CT
LOT CODE 1789
ASSEMBLED ON WW 19, 2001
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PART NUMBER
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
DATE CODE
P = LEAD-FREE
YEAR 1 = 2001
WEEK 19
LINE C
PART NUMBER
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
DATE CODE
YEAR 1 = 2001
WEEK 19
P = LEAD-FREE
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MBR20..CTPbF Series
Bulletin PD-20866 rev. B 05/06
MBR2045CT
********************************************
* This model has been developed by
*
* Wizard SPICE MODEL GENERATOR (1999) *
*
(International Rectifier Corporation)
*
* Contain Proprietary Information
*
********************************************
* SPICE Model Diode is composed by a
*
* simple diode plus paralled VCG2T
*
********************************************
.SUBCKT MBR2045CT ANO CAT
D1 ANO 1 DMOD (0.03215)
*Define diode model
.MODEL DMOD D(IS=3.22473520069593E-04A,N=1.51153417806053,BV=52V,
+ IBV=0.64831328218128A,RS= 0.00042438,CJO=2.77992867902976E-08,
+ VJ=2.31227489200041,XTI=2, EG=0.682207095559952)
********************************************
*Implementation of VCG2T
VX 1 2 DC 0V
R1 2 CAT TRES 1E-6
.MODEL TRES RES(R=1,TC1=-29.9397914371146)
GP1 ANO CAT VALUE={-ABS(I(VX))*(EXP((((1.396526E-04/-29.93979)*((V(2,CAT)*1E6)/(I(VX)+1E-6)1))+1)*4.399843E-02*ABS(V(ANO,CAT)))-1)}
********************************************
.ENDS MBR2045CT
Thermal Model Subcircuit
.SUBCKT MBR2045CT 5 1
CTHERM1
CTHERM2
CTHERM3
CTHERM4
5
4
3
2
4
3
2
1
1.43E+00
1.46E+01
9.30E+01
1.69E+03
RTHERM1
RTHERM2
RTHERM1
RTHERM1
5
4
3
2
4
3
2
1
5.79E-01
7.72E-01
4.45E-01
1.93E-01
.ENDS MBR2045CT
6
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MBR20..CTPbF Series
Bulletin PD-20866 rev. B 05/06
Ordering Information Table
Device Code
MBR
20
45
CT
PbF
1
2
3
4
5
1
-
Schottky MBR Series
2
-
Current Rating (20 = 20A)
3
-
Voltage Ratings
4
-
CT = Essential Part Number
5
-
y none = Standard Production
35 = 35V
45 = 45V
y PbF = Lead-Free
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.
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. 05/06
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