Vishay 42CTQ030 Data Sheet

42CTQ030

Vishay High Power Products

Schottky Rectifier, 2 x 20 A

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

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

PRODUCT SUMMARY

IF(AV)	2 x 20 A
VR	30 V

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.

MAJOR RATINGS AND CHARACTERISTICSL

SYMBOL	CHARACTERISTICS	VALUES	UNITS
IF(AV)	Rectangular waveform	40	A
VRRM		30	V
IFSM	tp = 5 µs sine	1100	A
VF	20 Apk, TJ = 125 °C (per leg)	0.38	V
TJ	Range	- 55 to 150	°C

VOLTAGE RATINGS

	PARAMETER	SYMBOL	42CTQ030	UNITS
	Maximum DC reverse voltage	VR	30	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 = 121 °C, rectangular waveform
		per device				40
	See fig. 5						A
	Maximum peak one cycle			5 µs sine or 3 µs rect. pulse	Following any rated load	1100
	non-repetitive surge current per leg		IFSM		condition and with rated
				10 ms sine or 6 ms rect. pulse		360
	See fig. 7				VRRM applied
	Non-repetitive avalanche energy per leg		EAS	TJ = 25 °C, IAS = 3 A, L = 2.90 mH		13	mJ
	Repetitive avalanche current per leg		IAR	Current decaying linearly to zero in 1 µs		3	A
				Frequency limited by TJ maximum VA = 1.5 x VR typical

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

42CTQ030

Vishay High Power Products Schottky Rectifier, 2 x 20 A

	ELECTRICAL SPECIFICATIONS
	PARAMETER		SYMBOL	TEST CONDITIONS		VALUES	UNITS
				20 A	TJ = 25 °C	0.48
	Maximum forward voltage drop per leg		VFM (1)	40 A		0.57	V
	See fig. 1			20 A	TJ = 125 °C	0.38
				40 A		0.51
	Maximum reverse leakage current per leg		IRM (1)	TJ = 25 °C	VR = Rated VR	3	mA
	See fig. 2			TJ = 125 °C		183
	Threshold voltage		VF(TO)	TJ = TJ maximum		0.22	V
	Forward slope resistance		rt			6.76	mΩ
	Maximum junction capacitance per leg		CT	VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C		2840	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 150	°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		42CTQ030

www.vishay.com	For technical questions, contact: [e-mail]	Document Number: 93345
2		Revision: 21-Aug-08

42CTQ030

Schottky Rectifier, 2 x 20 A Vishay High Power Products

<![if ! IE]>

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

1000										1000
									<![if ! IE]> <![endif]>(mA)	100	TJ = 150 °C
100									<![if ! IE]> <![endif]>Current		TJ = 125 °C
												TJ = 75 °C
									<![if ! IE]> <![endif]>Reverse-	10		TJ = 100 °C
						TJ = 150 °C				1
10						TJ = 125 °C						TJ = 50 °C
						TJ = 25 °C
									<![if ! IE]> <![endif]>R	0.1			T	J	= 25 °C
									<![if ! IE]> <![endif]>I
1										0.01	5	10	15		20	25	30
0	0.2	0.4	0.6	0.8	1.0	1.2	1.4	1.6	1.8	0

VFM - Forward Voltage Drop (V)	VR - Reverse Voltage (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics	Fig. 2 - Typical Values of Reverse Current vs.
(Per Leg)	Reverse Voltage (Per Leg)

<![if ! IE]>

<![endif]>CT - Junction Capacitance (pF)

10 000

TJ = 25 °C

1000

100

0

5

10

15

20

25

30

35

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: 93345	For technical questions, contact: [e-mail]	www.vishay.com
Revision: 21-Aug-08		3