Vishay MBR4045WTPBF Data Sheet

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

MBR4045WTPbF

Base

common

cathode

2

FEATURES

• 150 °C TJ operation

• Center tap TO-247 package

• Very low forward voltage drop

• High frequency operation

• 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 industrial level

TO-2 47AC

13

Anode

1

Common

cathode

Anode

2

2

DESCRIPTION

PRODUCT SUMMARY

I

F(AV)

V

R

I

RM

2 x 20 A

45 V

85 mA at 125 °C

The MBR4045WTPbF center tap Schottky rectifier has been
optimized for very low forward voltage drop, with moderate
leakage. 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.

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

I

FRM

V

RRM

I

FSM

V

F

T

J

Rectangular waveform (per device) 40

TC = 125 °C (per leg) 40

45 V

tp = 5 µs sine 1020 A

20 Apk, TJ = 125 °C 0.56 V

Range - 55 to 150 °C

A

Pb-free

Available

RoHS*

COMPLIANT

VOLTAGE RATINGS

PARAMETER SYMBOL MBR4045WTPbF UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

45 V

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum average
forward current

Peak repetitive forward current per leg I

Maximum peak one cycle
non-repetitive surge current per leg
See fig. 7

Non-repetitive avalanche energy per leg E

Repetitive avalanche current per leg I

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

Document Number: 94295 For technical questions, contact: [e-mail]
Revision: 14-Aug-08 1

per leg

per device 40

I

F(AV)

FRM

I

FSM

AR

AS

TC = 125 °C, 50 % duty cycle, rectangular waveform

Rated VR, square wave, 20 kHz, TC = 125 °C 40

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 265

TJ = 25 °C, IAS = 3 A, L = 4.40 mH 20 mJ

Current decaying linearly to zero in 1 µs
Frequency limited by T

maximum VA = 1.5 x VR typical

J

Following any rated load
condition and with rated
V

applied

RRM

20

A

1020

3A

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MBR4045WTPbF

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

ELECTRICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

20 A

Maximum forward voltage drop V

FM

(1)

20 A

40 A 0.78

40 A 0.72

TJ = 25 °C

Maximum instantaneous reverse current I

Threshold voltage V

Forward slope resistance r

Maximum junction capacitance C

Typical series inductance L

RM

F(TO)

(1)

J

T

J

TJ = TJ maximum

t

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 900 pF

T

Measured from top of terminal to mounting plane 7.5 nH

S

Maximum voltage rate of change dV/dt Rated V

Note

(1)

Pulse width < 300 µs, duty cycle < 2 %

T

= 25 °C

J

= 125 °C

T

J

= 100 °C 50

Rated DC voltage

= 125 °C 85

R

0.59

0.56

1.75

0.29 V

10.3 mΩ

10 000 V/µs

V

mAT

THERMAL - MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum junction temperature range T

Maximum storage temperature range T

Maximum thermal resistance,
junction to case per package

Typical thermal resistance,
case to heatsink

J

Stg

R

DC operation 1.4

thJC

R

thCS

Mounting surface, smooth and greased 0.7

Approximate weight

Mounting torque

minimum 6 (5)

maximum 12 (10)

Device marking Case style TO-247AC (JEDEC) MBR4045WT

- 55 to 150

- 55 to 175

°C

°C/W

6g

0.21 oz.

kgf · cm

(lbf · in)

www.vishay.com For technical questions, contact: [e-mail]

Document Number: 94295

2 Revision: 14-Aug-08

MBR4045WTPbF

1000

100

10

- Instantaneous

F

I

Forward Current (A)

1

0

V

Schottky Rectifier, 2 x 20 A

TJ = 150 °C

= 125 °C

T

J

T

= 25 °C

J

0.4 0.8 1.2 1.6

- Forward Voltage Drop (V)

FM

2.0

- Reverse Current (mA)

R

I

Vishay High Power Products

1000

10

0.1

1

0

TJ = 150 °C

TJ = 100 °C

TJ = 50 °C

10 20

V

R

TJ = 125 °C

TJ = 75 °C

TJ = 25 °C

30

- Reverse Voltage (V)

40

100

0.01

0.001

Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.

Reverse Voltage

1000

50

TJ = 25 °C

- Junction Capacitance (pF)

T

C

100

0

10 20 30

V

- Reverse Voltage (V)

R

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage

10

1

D = 0.75

0.1

- Thermal Impedance (°C/W)

thJC

Z

0.01

0.00001 0.0001 0.001 0.01 0.1 1

Single pulse

(thermal resistance)

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

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

40

Notes:

1. Duty factor D = t

2. Peak TJ = PDM x Z

Characteristics

thJC

50

P

DM

t

1

t

2

1/t2

+ T

thJC

C

100 10

Document Number: 94295 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 14-Aug-08 3