Vishay 40CPQ035PbF, 40CPQ040PbF, 40CPQ045PbF Data Sheet

TO-247AC

PRODUCT SUMMARY

I

F(AV)

V

R

40CPQ035PbF/40CPQ040PbF/40CPQ045PbF

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

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

DESCRIPTION

The 40CPQ...PbF 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.

1 3

Anode

1

35 to 45 V

Base

common

cathode

2

2

Common

cathode

2 x 20 A

Anode

2

Pb-free

Available

RoHS*

COMPLIANT

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 40 A

35 to 45 V

tp = 5 µs sine 3500 A

20 Apk, TJ = 125 °C (per leg) 0.43 V

- 55 to 150 °C

VOLTAGE RATINGS

PARAMETER SYMBOL 40CPQ035PbF 40CPQ040PbF 40CPQ045PbF UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

35 40 45 V

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum average forward current
See fig. 5

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

I

F(AV)

I

FSM

AR

AS

50 % duty cycle at TC = 120 °C, rectangular waveform 40

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 430

TJ = 25 °C, IAS = 4 A, L = 3.4 mH 27 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

3500

4A

A

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

Document Number: 94208 For technical questions, contact: [e-mail]
Revision: 13-Aug-08 1

www.vishay.com

40CPQ035PbF/40CPQ040PbF/40CPQ045PbF

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

ELECTRICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

20 A

Maximum forward voltage drop per leg
See fig. 1

V

FM

40 A 0.59

(1)

20 A

40 A 0.56

Maximum reverse leakage current per leg
See fig. 2

I

RM

Maximum junction capacitance per leg C

Typical series inductance per leg L

TJ = 25 °C

(1)

T

= 125 °C 150

J

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 1850 pF

T

Measured lead to lead 5 mm from package body 7.5 nH

S

Maximum voltage rate of change dV/dt Rated V

T

= 25 °C

J

= 125 °C

T

J

V

= Rated V

R

R

R

0.49

0.43

4

10 000 V/µs

Note

(1)

Pulse width < 300 µs, duty cycle < 2 %

THERMAL - MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum junction and storage
temperature range

Maximum thermal resistance,
junction to case per leg

Maximum thermal resistance,
junction to case per package

Typical thermal resistance,
case to heatsink

Approximate weight

Mounting torque

minimum

maximum 12 (10)

Marking device Case style TO-247AC (JEDEC)

T

, T

J

Stg

DC operation
See fig. 4

R

thJC

- 55 to 150 °C

1.25

DC operation 0.63

R

thCS

Mounting surface, smooth and greased 0.24

6g

0.21 oz.

Non-lubricated threads

6 (5)

kgf ⋅ cm

(lbf ⋅ in)

40CPQ035

40CPQ040

40CPQ045

V

mA

°C/W

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

Document Number: 94208

2 Revision: 13-Aug-08

40CPQ035PbF/40CPQ040PbF/40CPQ045PbF

Schottky Rectifier, 2 x 20 A

1000

100

10

1

0.1

- Instantaneous Forward Current (A)

F

I

0.2 0.4 0.6 0.8 1.0

0

V

- Forward Voltage Drop (V)

FM

Fig. 1 - Maximum Forward Voltage Drop Characteristics

(Per Leg)

TJ = 150 °C
T

= 125 °C

J

= 25 °C

T

J

10 000

Vishay High Power Products

1000

TJ = 150 °C

100

10

1

0.1

- Reverse Current (mA)

R

0.01

I

1.41.2

0.001

TJ = 125 °C

TJ = 100 °C

TJ = 75 °C

TJ = 50 °C

TJ = 25 °C

0

1051520

V

- Reverse Voltage (V)

R

25 30 30

40

45

Fig. 2 - Typical Values of Reverse Current vs.

Reverse Voltage (Per Leg)

1000

- Junction Capacitance (pF)

T

C

100

0

TJ = 25 °C

10 20 30 40

VR - Reverse Voltage (V)

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

10

1

0.1

D = 0.50

0.01

- Thermal Impedance (°C/W)

thJC

Z

0.001

0.00001 0.0001 0.001 0.01 0.1 1

Single pulse

(thermal resistance)

D = 0.33
D = 0.25
D = 0.17
D = 0.08

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

Characteristics (Per Leg)

thJC

50

P

DM

Notes:

1. Duty factor D = t

2. Peak TJ = PDM x Z

1/t2

t

1

thJC

t

2

+ T

C

100 10

Document Number: 94208 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 13-Aug-08 3