Vishay 43CTQ... Data Sheet

43CTQ...

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

FEATURES

• 175 °C TJ operation

	Base	2
	common
	cathode
	Anode	2	Anode
TO-220AB	1 Common		3
	cathode

•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

PRODUCT SUMMARY

IF(AV)	2 x 20 A
VR	80/100 V

• 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.

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL

CHARACTERISTICS

VALUES

UNITS

IF(AV)

Rectangular waveform

40

A

VRRM

80/100

V

IFSM

tp = 5 µs sine

850

A

VF

20 Apk, TJ = 125 °C (per leg)

0.67

V

TJ

Range

- 55 to 175

°C

VOLTAGE RATINGS

PARAMETER

SYMBOL

43CTQ080

43CTQ100

UNITS

Maximum DC reverse voltage

VR

80

100

V

Maximum working peak reverse voltage

VRWM

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

TEST CONDITIONS

VALUES

UNITS

Maximum average

per leg

20

forward current

IF(AV)

50 % duty cycle at TC = 135 °C, rectangular waveform

A

per device

40

See fig. 5

Maximum peak one cycle

5 µs sine or 3 µs rect. pulse

Following any rated

850

non-repetitive surge current per leg

IFSM

load condition and with

A

10 ms sine or 6 ms rect. pulse

275

See fig. 7

rated VRRM applied

Non-repetitive avalanche energy per leg

EAS

TJ = 25 °C, IAS = 0.50 A, L = 60 mH

7.50

mJ

Repetitive avalanche current per leg

IAR

Current decaying linearly to zero in 1 µs

0.50

A

Frequency limited by TJ maximum VA = 1.5 x VR typical

Document Number: 93917

For technical questions, contact: [e-mail]

www.vishay.com

Revision: 04-Mar-09

1

43CTQ...

	Vishay High Power Products			Schottky Rectifier,
				2 x 20 A
	ELECTRICAL SPECIFICATIONS
	PARAMETER		SYMBOL	TEST CONDITIONS		VALUES	UNITS
				20 A	TJ = 25 °C	0.81
	Maximum forward voltage drop per leg		VFM (1)	40 A		0.98	V
	See fig. 1			20 A	TJ = 125 °C	0.67
				40 A		0.81
	Maximum reverse leakage current per leg		IRM (1)	TJ = 25 °C	VR = Rated VR	1	mA
	See fig. 2			TJ = 125 °C		11
	Threshold voltage		VF(TO)	TJ = TJ maximum		0.71	V
	Forward slope resistance		rt			0.43	mΩ
	Maximum junction capacitance per leg		CT	VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C		1480	pF
	Typical series inductance per leg		LS	Measured lead to lead 5 mm from package body		8.0	nH
	Maximum voltage rate of change		dV/dt	Rated VR		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		TJ, TStg			- 55 to 175	°C
	temperature range
	Maximum thermal resistance,					2.0
	junction to case per leg
			RthJC	DC operation
	Maximum thermal resistance,					1.0	°C/W
	junction to case per package
	Typical thermal resistance,		RthCS	Mounting surface, smooth and greased		0.50
	case to heatsink
	Approximate weight					2	g
						0.07	oz.
	Mounting torque	minimum				6 (5)	kgf · cm
							(lbf · in)
		maximum				12 (10)
	Marking device			Case style TO-220AB		43CTQ080
						43CTQ100

www.vishay.com	For technical questions, contact: [e-mail]	Document Number: 93917
2		Revision: 04-Mar-09

		43CTQ...
	Schottky Rectifier,	Vishay High Power Products
	2 x 20 A

<![if ! IE]>

<![endif]>IF - Instantaneous Forward Current (A)

1000
100
					TJ = 175 °C
10					TJ = 125 °C
					TJ = 25 °C
1
0.2	0.4	0.6	0.8	1.0	1.2	1.4	1.6	1.8

VFM - Forward Voltage Drop (V)

Fig. 1 - Maximum Forward Voltage Drop Characteristics

(Per Leg)

<![if ! IE]>

<![endif]>IR - Reverse Current (mA)

1000
100		TJ = 175 °C
10	TJ	= 150 °C
		TJ = 125 °C
1	TJ	= 100 °C
		TJ = 75 °C
0.1
		TJ = 50 °C
0.01		TJ = 25 °C

0.001

0

20

40

60

80

100

VR - Reverse Voltage (V)

Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage (Per Leg)

	10 000
<![if ! IE]> <![endif]>(pF)
<![if ! IE]> <![endif]>Capacitance	1000
<![if ! IE]> <![endif]>- Junction				TJ = 25 °C
<![if ! IE]> <![endif]>T
<![if ! IE]> <![endif]>C
	100
	0	20	40	60	80	100

VR - Reverse Voltage (V)

Fig. 3 - Typical Junction Capacitance vs.

Reverse Voltage (Per Leg)

<![if ! IE]> <![endif]>(°C/W)	10
<![if ! IE]> <![endif]>Impedance	1
					D = 0.75		PDM
					D = 0.50
<![if ! IE]> <![endif]>Thermal							t1
					D = 0.33
	0.1
					D = 0.25		t2
		Single pulse			D = 0.20		Notes:
<![if ! IE]> <![endif]>-		(thermal resistance)
							1. Duty factor D = t1/t2
<![if ! IE]> <![endif]>thJC
							2. Peak TJ = PDM x ZthJC + TC
<![if ! IE]> <![endif]>Z	0.01
	0.00001	0.0001	0.001	0.01	0.1	1	10	100

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg)

Document Number: 93917	For technical questions, contact: [e-mail]	www.vishay.com
Revision: 04-Mar-09		3