Vishay 40CTQ150PBF Data Sheet

TO-220AB

Schottky Rectifier, 2 x 20 A

FEATURES

• 175 °C TJ operation

• Center tap TO-220 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

Anode

Base

common

cathode

Common

1 3

cathode

2

Anode

2

40CTQ150PbF

Vishay High Power Products

Pb-free

Available

RoHS*

COMPLIANT

PRODUCT SUMMARY

I

F(AV)

V

R

2 x 20 A

150 V

The 40CTQ... 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 175 °C junction temperature. Typical
applications are in switching power supplies, converters,
freewheeling diodes, and reverse battery protection.

MAJOR RATINGS AND CHARACTERISTICS

DESCRIPTION

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 40 A

150 V

tp = 5 µs sine 1500 A

20 Apk, TJ = 125 °C (per leg) 0.71 V

- 55 to 175 °C

VOLTAGE RATINGS

PARAMETER SYMBOL 40CTQ150PbF UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

150 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

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

Document Number: 94214 For technical questions, contact: [e-mail]
Revision: 13-Aug-08 1

per leg

per device 40

I

F(AV)

I

FSM

AR

50 % duty cycle at TC = 140 °C, rectangular waveform

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 250

TJ = 25 °C, IAS = 1.5 A, L = 0.9 mH 1.0 mJ

AS

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

1500

1.5 A

A

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40CTQ150PbF

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 1.16

(1)

20 A

40 A 0.85

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 15 mA

J

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 450 pF

T

Measured lead to lead 5 mm from package body 8.0 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

0.93

0.71

50 µA

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-220AB 40CTQ150

T

, T

J

Stg

DC operation
See fig. 4

R

thJC

- 55 to 175 °C

1.5

DC operation 0.75

R

thCS

Mounting surface, smooth and greased 0.5

2g

0.07 oz.

Non-lubricated threads

6 (5)

kgf · cm

(lbf · in)

V

°C/W

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

Document Number: 94214

2 Revision: 13-Aug-08

40CTQ150PbF

100

10

- Instantaneous Forward Current (A)

1

F

I

0.4 0.8 1.2 1.60

V

- Forward Voltage Drop (V)

FM

Schottky Rectifier, 2 x 20 A

TJ = 175 °C

= 125 °C

T

J

T

= 25 °C

J

- Reverse Current (mA)

R

I

Vishay High Power Products

1000

100

10

1

0.1

0.01

0.001

0

TJ = 175 °C

TJ = 150 °C

TJ = 125 °C

TJ = 100 °C

TJ = 75 °C

TJ = 50 °C

TJ = 25 °C

4020 60 80

V

- Reverse Voltage (V)

R

100 120 140

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

Reverse Voltage

1000

160

TJ = 25 °C

100

- Junction Capacitance (pF)

T

C

10

0

VR - Reverse Voltage (V)

8040 120

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage

10

1

D = 0.75

0.1

Single pulse

(thermal resistance)

- Thermal Impedance (°C/W)

thJC

Z

0.01

0.00001 0.0001 0.001 0.01 0.1 10 1

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

t1 - Rectangular Pulse Duration (s)

160

P

DM

Notes:

1. Duty factor D = t

2. Peak TJ = PDM x Z

1/t2

t

1

thJC

t

2

+ T

C

100

Fig. 4 - Maximum Thermal Impedance Z

Characteristics

thJC

Document Number: 94214 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 13-Aug-08 3