MBRB4045CTP - Vishay Presicion Group

Document Number: 94311 For technical questions, contact: diodes-tech@vishay.com www.vishay.com

Revision: 14-Aug-08 1

Schottky Rectifier, 2 x 20 A

MBRB4045CTPbF/MBR4045CT-1PbF

Vishay High Power Products

FEATURES

• 150 °C TJ operation

• Low forward voltage drop

• High frequency operation

• Center tap TO-220, D2PAK and TO-262

packages

• High purity, high temperature epoxy encapsulation for

enhanced mechanical strength and moisture resistance

• Guard ring for enhanced ruggedness and long term

reliability

• Lead (Pb)-free (“PbF” suffix)

• Designed and qualified for Q101 level

DESCRIPTION

The 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, freewheeling diodes, and reverse

battery protection.

PRODUCT SUMMARY

IF(AV) 2 x 20 A

VR45 V

IRM 95 mA at 125 °C

MBRB4045CTPbF

Base

common

cathode

PAK TO-262

MBR4045CT-1PbF

Anode Anode

Common

cathode

Base

common

cathode

Anode Anode

Common

cathode

Available

RoHS*

COMPLIANT

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL CHARACTERISTICS VALUES UNITS

IF(AV) Rectangular waveform (per device) 40 A

IFRM TC = 118 °C (per leg) 40

VRRM 45 V

IFSM tp = 5 µs sine 900 A

VF20 Apk, TJ = 125 °C 0.58 V

TJRange - 65 to 150 °C

VOLTAGE RATINGS

PARAMETER SYMBOL MBRB4045CTPbF

MBR4045CT-1PbF UNITS

Maximum DC reverse voltage VR45 V

Maximum working peak reverse voltage VRWM

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum average

forward current

per leg IF(AV) TC = 118 °C, rated VR

per device 40

Peak repetitive forward current per leg IFRM Rated VR, square wave, 20 kHz, TC = 118 °C 40

Maximum peak one cycle non-repetitive

peak surge current per leg IFSM

5 µs sine or 3 µs rect. pulse Following any rated

load condition and with

rated VRRM applied

900

10 ms sine or 6 ms rect. pulse 210

Non-repetitive avalanche energy per leg EAS TJ = 25 °C, IAS = 3 A, L = 4.4 mH 20 mJ

Repetitive avalanche current per leg IAR

Current decaying linearly to zero in 1 µs

Frequency limited by TJ maximum VA = 1.5 x VR typical 3A

* Pb containing terminations are not RoHS compliant, exemptions may apply

www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 94311

2Revision: 14-Aug-08

MBRB4045CTPbF/MBR4045CT-1PbF

Vishay High Power Products Schottky Rectifier, 2 x 20 A

Note

(1) Pulse width < 300 µs, duty cycle < 2 %

ELECTRICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum forward voltage drop VFM (1)

20 A TJ = 25 °C 0.60

40 A 0.78

20 A TJ = 125 °C 0.58

40 A 0.75

Maximum instantaneous

reverse current IRM (1)

TJ = 25 °C

Rated DC voltage

mATJ = 100 °C 50

TJ = 125 °C 95

Maximum junction capacitance CTVR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 900 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 per leg RthJC DC operation 1.5

°C/W

Typical thermal resistance,

case to heatsink RthCS

Mounting surface, smooth and greased

(Only for TO-220) 0.50

Maximum thermal resistance,

junction to ambient RthJA

DC operation

(For D2PAK and TO-262) 50

Approximate weight 2g

0.07 oz.

Mounting torque minimum Non-lubricated threads 6 (5) kgf · cm

(lbf · in)

maximum 12 (10)

Marking device Case style D2PAK MBRB4045CT

Case style TO-262 MBR4045CT-1

Document Number: 94311 For technical questions, contact: diodes-tech@vishay.com www.vishay.com

Revision: 14-Aug-08 3

MBRB4045CTPbF/MBR4045CT-1PbF

Schottky Rectifier, 2 x 20 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)

100

1000

IF - Instantaneous

Forward Current (A)

VFM - Forward Voltage Drop (V)

0.2 0.4 0.81.4 1.82.0

0.6 1.21.0 1.60

TJ = 150 °C

TJ = 125 °C

TJ = 25 °C

0.001

100

0.1

0.01

1000

- Reverse Current (mA)

- Reverse Voltage (V)

1051520 40 45

25 3035

TJ = 150 °C

TJ = 125 °C

TJ = 100 °C

TJ = 75 °C

TJ = 50 °C

TJ = 25 °C

200

300

600

400

700

800

900

500

CT - Junction Capacitance (pF)

VR - Reverse Voltage (V)

10 20 40

050

TJ = 25 °C

0.01

0.1

0.00001 0.0001 0.001 0.01 0.1 1

t1 - Rectangular Pulse Duration (s)

ZthJC - Thermal Impedance (°C/W)

Single pulse

(thermal resistance)

D = 0.75

D = 0.50

D = 0.33

D = 0.25

D = 0.20

PDM

Notes:

1. Duty factor D = t1/t2

2. Peak TJ = PDM x ZthJC + TC

0.001

www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 94311

4Revision: 14-Aug-08

MBRB4045CTPbF/MBR4045CT-1PbF

Vishay High Power Products Schottky Rectifier, 2 x 20 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

100

120

140

160

Allowable Case Temperature (°C)

(

)

- Average Forward Current (A)

10 5 15 20

3025

See note (1)

Square wave (D = 0.50)

Rated VR applied

Average Power Loss (W)

F(AV)

- Average Forward Current (A)

1051520 3525 30

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

At any rated load condition

and with rated VRRM applied

following surge

Document Number: 94311 For technical questions, contact: diodes-tech@vishay.com www.vishay.com

Revision: 14-Aug-08 5

MBRB4045CTPbF/MBR4045CT-1PbF

Schottky Rectifier, 2 x 20 A Vishay High Power Products

ORDERING INFORMATION TABLE

1- Essential part number

2- B = D2PAK 6 None

None = TO-262 6 = -1

3- Current rating (40 = 40 A)

4- Voltage rating (45 = 45 V)

5- CT = Essential part number

6 None = D2PAK 2= B

-1 = TO-262 2None

7- None = Tube (50 pieces)

TRL = Tape and reel (left oriented - for D2PAK only)

TRR = Tape and reel (right oriented - for D2PAK only)

8- None = Standard production

PbF = Lead (Pb)-free (for TO-262 and D2PAK tube)

P = Lead (Pb)-free (for D2PAK TRR and TRL)

Device code

51324678

MBR B 40 45 CT -1 TRL PbF

LINKS TO RELATED DOCUMENTS

Dimensions http://www.vishay.com/doc?95014

Part marking information http://www.vishay.com/doc?95008

Packaging information http://www.vishay.com/doc?95032

SPICE model http://www.vishay.com/doc?95296

Document Number: 91000 www.vishay.com

Revision: 18-Jul-08 1

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All product specifications and data are subject to change without notice.

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