Vishay 43CTQ... Data Sheet

TO-220AB

PRODUCT SUMMARY

I

F(AV)

V

R

Schottky Rectifier, 2 x 20 A

FEATURES

Base

common

Anode

2

cathode

2

Common

13

cathode

2 x 20 A

80/100 V

Anode

• 175 °C TJ operation

• Center tap configuration

• Low forward voltage drop

• High frequency operation

• Guard ring for enhanced ruggedness and long term
reliability

• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance

• Designed and qualified for industrial level

DESCRIPTION

This center tap Schottky rectifier series has been optimized
for low reverse leakage at high temperature. 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.

43CTQ...

Vishay High Power Products

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 40 A

80/100 V

tp = 5 µs sine 850 A

20 Apk, TJ = 125 °C (per leg) 0.67 V

Range - 55 to 175 °C

VOLTAGE RATINGS

PARAMETER SYMBOL 43CTQ080 43CTQ100 UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

80 100 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 = 135 °C, rectangular waveform

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 275

TJ = 25 °C, IAS = 0.50 A, L = 60 mH 7.50 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

RRM

applied

20

A

850

A

0.50 A

Document Number: 93917 For technical questions, contact: [e-mail]
Revision: 04-Mar-09 1

www.vishay.com

43CTQ...

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 0.98

(1)

20 A

40 A 0.81

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 11

J

TJ = TJ maximum

t

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 1480 pF

T

Measured lead to lead 5 mm from package body 8.0 nH

S

Maximum voltage rate of change dV/dt Rated V

R

T

= 25 °C

J

= 125 °C

T

J

V

= Rated V

R

R

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

T

, T

J

Stg

R

DC operation

thJC

R

thCS

Mounting surface, smooth and greased 0.50

0.81

0.67

1

0.71 V

0.43 mΩ

10 000 V/µs

- 55 to 175 °C

2.0

1.0

2g

0.07 oz.

kgf · cm

(lbf · in)

43CTQ080

43CTQ100

V

mA

°C/W

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

Document Number: 93917

2 Revision: 04-Mar-09

43CTQ...

1000

100

TJ = 175 °C

= 125 °C

T

1.2

J

= 25 °C

T

J

1.6

10

1

- Instantaneous Forward Current (A)

F

I

0.40.2 0.6 1.0 1.4 1.8

0.8

VFM - Forward Voltage Drop (V)

Fig. 1 - Maximum Forward Voltage Drop Characteristics

(Per Leg)

10 000

Schottky Rectifier,

2 x 20 A

- Reverse Current (mA)

R

I

Vishay High Power Products

1000

100

1

0

TJ = 150 °C

TJ = 100 °C

TJ = 50 °C

4020 60

10

0.1

0.01

0.001

VR - Reverse Voltage (V)

Fig. 2 - Typical Values of Reverse Current vs.

Reverse Voltage (Per Leg)

TJ = 175 °C

TJ = 125 °C

TJ = 75 °C

TJ = 25 °C

80

100

1000

TJ = 25 °C

- Junction Capacitance (pF)

T

C

100

06080

20

40

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

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

100

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: 93917 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 04-Mar-09 3