Bulletin PD-2.320 rev.

D 07/03

MBR2045CT MBRB2045CT MBR2045CT-1

SCHOTTKY RECTIFIER 20 Amp

Major Ratings and Characteristics Characteristics

IF(AV) Rectangular waveform (Per Device) IFRM @ TC = 135C (Per Leg) VRRM IFSM @ tp = 5 s sine VF TJ @ 10 Apk, TJ = 125C range 20 35/45 1060 0.57 - 65 to 150 A V A V C

Description/ Features Units

A 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. 150 C TJ operation Center tap TO-220 and D2Pak packages Low forward voltage drop 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

Values
20

Case Styles MBR20..CT MBRB20..CT MBR20..CT-1

Base Common Cathode

2

Base Common Cathode

2

Base Common Cathode

2

Anode

2 Common Cathode

Anode

Anode

2 Common Cathode

Anode

Anode

2 Common Cathode

Anode

TO-220 www.irf.com

D PAK

TO-262 1

MBR2045CT, MBRB2045CT, MBR2045CT-1

Bulletin PD-2.320 rev. D 07/03

Voltage Ratings
Parameters
VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V)
MBR2035CT MBRB2035CT MBR2035CT-1 MBR2045CT MBRB2045CT MBR2045CT-1

35

45

Absolute Maximum Ratings

Parameters
IF(AV) Max. Average Forward (Per Leg) Current (Per Device) IFRM Peak Repetitive Forward Current (Per Leg) IFSM Non Repetitive Peak Surge Current

Values
10 20 20 1060

Units
A A

Conditions
@ T C = 135 C, (Rated VR) Rated V R , square wave, 20kHz TC = 135 C 5s Sine or 3s Following any rated load condition and with rated V RRM applied Rect. pulse Surge applied at rated load conditions halfwave, single phase, 60Hz (Per Leg) TJ = 25 C, IAS = 2 Amps, L = 4 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical

A 150 8 2 mJ A

EAS IAR

Non-Repetitive Avalanche Energy Repetitive Avalanche Current (Per Leg)

Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop (1) IRM Max. Instantaneus Reverse Current (1) VF(TO) Threshold Voltage rt CT LS Forward Slope Resistance Max. Junction Capacitance Typical Series Inductance (Rated VR)

Values
0.84 0.57 0.72 0.1 15 0.354 17.6 600 8.0 10000

Units
V V V mA mA V
m

Conditions
@ 20A @ 10A @ 20A TJ = 25 C TJ = 125 C
TJ = TJ max.

TJ = 25 C TJ = 125 C Rated DC voltage

pF nH V/ s

VR = 5VDC (test signal range 100Khz to 1Mhz) 25C Measured from top of terminal to mounting plane

dv/dt Max. Voltage Rate of Change

Thermal-Mechanical Specifications
Parameters
TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range

(1) Pulse Width < 300s, Duty Cycle <2%

Values
-65 to 150 -65 to 175 2.0 0.50 2 (0.07) Min. Max. 6 (5) 12 (10)

Units
C C

Conditions

RthJC Max. Thermal Resistance Junction to Case (Per Leg) RthCS Typical Thermal Resistance Case to Heatsink wt T Approximate Weight Mounting Torque

C/W DC operation C/W Mounting surface, smooth and greased Only for TO-220 g (oz.) Kg-cm Non-lubricated threads (Ibf-in)

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MBR2045CT, MBRB2045CT, MBR2045CT-1

Bulletin PD-2.320 rev. D 07/03
100

100 10 1 0.1 0.01 0.001

TJ = 150C TJ = 125C

Reverse Current - IR (mA)

T J = 150C 125C 100C 75C 50C 25C

InstantaneousForward Current - IF (A)

0.0001

10

15 20 25 30 35 40 45

10

TJ = 25C

R everse Voltage - VR (V)

Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg)
1000 Junction Capacitance - C T (pF)

TJ = 25C

1 0.2

100
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 Forward Voltage Drop - VFM (V)

10

20

30

40

50

Reverse Voltage - VR (V)

Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg)

10 T hermal Impedance Z thJC (C/ W)

Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg)

D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20

P DM

0.1

S ingle Pulse (T hermal Resistanc e)

t1 Notes: t2

1. Duty factor D = t 1/ t 2 2. Peak T J= P DM 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 (S eco nds)

Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)

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MBR2045CT, MBRB2045CT, MBR2045CT-1

Bulletin PD-2.320 rev. D 07/03
150 Allowable Case T emperature - (C)

10 Average Power Loss - (Wa tts) D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 RMSLimit DC

145 DC 140 135 130 125

see note (2)

S quare wave (D = 0.50) R ated VR applied

120

12

15

10

12

14

16

Average Forward Current - I F(AV) (A)

Average Forward Current - I F(AV) (A)

Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg)

Fig. 6 - Forward Power Loss Characteristics (Per Leg)

Non-R epetitive S urge Current - I FSM (A)

1000

At Any R ated Load Cond ition And With R ated V RRM Applied Following S urge 100 10 100 1000 10000

S quare 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

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MBR2045CT, MBRB2045CT, MBR2045CT-1

Bulletin PD-2.320 rev. D 07/03

Ordering Information Table

Device Code

MBR
1 1 2 3 4 5 6 -

B
2

20
3

45
4

CT
5

-1
6

Essential Part Number B = Surface Mount None = TO-220 Current Rating Voltage code: Code = VRRM CT= Essential Part Number -1 = TO-262 None = TO-220 35 45 = 35V = 45V

Outline Table
10.54 (0.41) MAX. 3.78 (0.15) 3.54 (0.14) 15.24 (0.60) 14.84 (0.58) 1 2 3 14.09 (0.55) 13.47 (0.53) 3.96 (0.16) 3.55 (0.14) 2.04 (0.080) MAX. 1.40 (0.05) 1.15 (0.04) 0.94 (0.04) 0.69 (0.03)
1 2 3

1.32 (0.05) DIA. 6.48 (0.25) 6.23 (0.24) 2 1.22 (0.05)

2.92 (0.11) 2.54 (0.10) TERM 2

0.10 (0.004)

2.89 (0.11) 2.64 (0.10)

BASE COMMON CATHODE 2

1 2 3 4.57 (0.18) 4.32 (0.17)

0.61 (0.02) MAX.

ANODE COMMON ANODE CATHODE 1 2

5.08 (0.20) REF.

Conform to JEDEC outline TO-220AB Dimensions in millimeters and (inches)

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MBR2045CT, MBRB2045CT, MBR2045CT-1

Bulletin PD-2.320 rev. D 07/03

Outline Table
10.16 (0.40) REF.

4.69 (0.18) 4.20 (0.16)

1.32 (0.05)

6.47 (0.25)
15.49 (0.61)

1.22 (0.05)

93

6.18 (0.24)

14.73 (0.58)

2.61 (0.10)
2.32 (0.09) 8.89 (0.35)

5.28 (0.21) 4.78 (0.19)

0.55 (0.02) 0.46 (0.02)

3X
BASE COMMON CATHODE 2

1.40 (0.055)

REF.
0.93 (0.37) 0.69 (0.27)

1.14 (0.045) 2X

MINIMUM RECOMMENDED FOOTPRINT

11.43 (0.45)

1
1 2 3 ANODE COMMON ANODE CATHODE 1 2

3
4.57 (0.18)

4.32 (0.17)
2 0.61 (0.02) MAX. 5.08 (0.20) REF.

8.89 (0.35)

17.78 (0.70) 3.81 (0.15)

2.08 (0.08) 2X

Conform to JEDEC outline D2Pak (SMD-220) Dimensions in millimeters and (inches)

2.54 (0.10) 2X

Tape & Reel Information

TRR
1.60 (0.063) 1.50 (0.059)

4.10 (0.161) 3.90 (0.153) FEED DIRECTION

1.60 (0.063) 1.50 (0.059)

DIA. 0.368 (0.0145) 0.342 (0.0135)

1.85 (0.073) 1.65 (0.065)

11.60 (0.457) 11.40 (0.449)

15.42 (0.609) 15.22 (0.601) 1.75 (0.069) 24.30 (0.957) 23.90 (0.941)

TRL
10.90 (0.429) 10.70 (0.421)

1.25 (0.049) 16.10 (0.634) 15.90 (0.626)

DIA.
4.72 (0.186) 4.52 (0.178)

FEED DIRECTION

13.50 (0.532)

12.80 (0.504) DIA.

26.40 (1.039) 24.40 (0.961)

SMD-220 Tape & Reel When ordering, indicate the part number, part orientation, and the quantity. Quantities are in multiples of 800 pieces per reel for both TRL and T RR.

360 (14.173) DIA. MAX.

60 (2.362) DIA . MIN.

Dimensions in millimeters and (inches)

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MBR2045CT, MBRB2045CT, MBR2045CT-1

Bulletin PD-2.320 rev. D 07/03

Outline Table

Modified JEDEC outline TO-262 Dimensions in millimeters and (inches)

BASE COMMON CATHODE 2

ANODE COMMON ANODE CATHODE 1 2

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MBR2045CT, MBRB2045CT, MBR2045CT-1

Bulletin PD-2.320 rev. D 07/03

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 RTHERM1 RTHERM2 RTHERM1 RTHERM1 5 4 3 2 5 4 3 2 4 3 2 1 4 3 2 1 1.43E+00 1.46E+01 9.30E+01 1.69E+03 5.79E-01 7.72E-01 4.45E-01 1.93E-01

.ENDS MBR2045CT

Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level. 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. 07/03

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