Vishay 42CTQ030 Data Sheet

TO-220AB

PRODUCT SUMMARY

I

F(AV)

V

R

Schottky Rectifier, 2 x 20 A

FEATURES

• 150 °C TJ operation

• Center tap configuration

• Very 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

• Designed and qualified for industrial level

DESCRIPTION

This 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.

Anode

Base

common

cathode

Common

1 3

cathode

2 x 20 A

2

2

30 V

Anode

42CTQ030

Vishay High Power Products

MAJOR RATINGS AND CHARACTERISTICSL

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 40 A

30 V

tp = 5 µs sine 1100 A

20 Apk, TJ = 125 °C (per leg) 0.38 V

Range - 55 to 150 °C

VOLTAGE RATINGS

PARAMETER SYMBOL 42CTQ030 UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

30 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

per leg

per device 40

I

F(AV)

I

FSM

AR

50 % duty cycle at TC = 121 °C, rectangular waveform

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 360

TJ = 25 °C, IAS = 3 A, L = 2.90 mH 13 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

A

1100

3A

Document Number: 93345 For technical questions, contact: [e-mail]
Revision: 21-Aug-08 1

www.vishay.com

42CTQ030

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 0.57

(1)

20 A

40 A 0.51

Maximum reverse leakage current per leg
See fig. 2

I

RM

Threshold voltage V

Forward slope resistance r

Maximum junction capacitance per leg C

Typical series inductance per leg L

F(TO)

TJ = 25 °C

(1)

T

= 125 °C 183

J

TJ = TJ maximum

t

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 2840 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

0.48

0.38

3

0.22 V

6.76 mΩ

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 6 (5)

maximum 12 (10)

Marking device Case style TO-220AB 42CTQ030

, T

T

J

Stg

R

DC operation

thJC

R

thCS

- 55 to 150 °C

2.0

1.0

Mounting surface, smooth and greased 0.50

2g

0.07 oz.

kgf ·cm

(lbf · in)

V

mA

°C/W

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

Document Number: 93345

2 Revision: 21-Aug-08

42CTQ030

Schottky Rectifier, 2 x 20 A

1000

100

TJ = 150 °C

= 125 °C

T

10

1

- Instantaneous Forward Current (A)

F

I

0.40 0.2 0.6 1.0 1.4 1.8

0.8

VFM - Forward Voltage Drop (V)

Fig. 1 - Maximum Forward Voltage Drop Characteristics

(Per Leg)

J

= 25 °C

T

J

1.2

10 000

1.6

Vishay High Power Products

1000

TJ = 150 °C

100

10

1

- Reverse Current (mA)

0.1

R

I

0.01

0

Fig. 2 - Typical Values of Reverse Current vs.

TJ = 125 °C

TJ = 100 °C

TJ = 75 °C

TJ = 50 °C

TJ = 25 °C

10515

203025

VR - Reverse Voltage (V)

Reverse Voltage (Per Leg)

1000

- Junction Capacitance (pF)

T

C

100

01520

10

5

VR - Reverse Voltage (V)

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

10

1

0.1

- Thermal Impedance (°C/W)

thJC

Z

0.01

0.00001 0.0001 0.001 0.01 0.1

Single pulse

(thermal resistance)

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

TJ = 25 °C

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

25 30 35

Notes:

1. Duty factor D = t

2. Peak TJ = PDM x Z

1

Characteristics (Per Leg)

thJC

P

DM

t

1

t

2

1/t2

+ T

thJC

C

10

100

Document Number: 93345 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 21-Aug-08 3