Vishay 25CTQ...PbF Series Data Sheet

25CTQ...PbF Series

Vishay High Power Products

Schottky Rectifier, 2 x 15 A

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

PRODUCT SUMMARY

IF(AV)	2 x 15 A
VR	35 to 45 V

	FEATURES
	• 150 °C TJ operation
	• Center tap TO-220 package	Pb-free
	• Low forward voltage drop	Available
		RoHS*
	• High frequency operation
		COMPLIANT

•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

DESCRIPTION

The 25CTQ...PbF center tap Schottky rectifier series 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 CHARACTERISTICS

SYMBOL

CHARACTERISTICS

VALUES

UNITS

IF(AV)

Rectangular waveform

30

A

VRRM

Range

35 to 45

V

IFSM

tp = 5 µs sine

990

A

VF

15 Apk, TJ = 125 °C (per leg)

0.50

V

TJ

Range

- 55 to 150

°C

VOLTAGE RATINGS

PARAMETER

SYMBOL

25CTQ035PbF

25CTQ040PbF

25CTQ045PbF

UNITS

Maximum DC reverse voltage

VR

35

40

45

V

Maximum working peak reverse voltage

VRWM

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

TEST CONDITIONS

VALUES

UNITS

Maximum average forward current

IF(AV)

50 % duty cycle at TC = 102 °C, rectangular waveform

30

A

See fig. 5

Maximum peak one cycle non-repetitive

5 µs sine or 3 µs rect. pulse

Following any rated load

990

surge current per leg

IFSM

condition and with rated

A

10 ms sine or 6 ms rect. pulse

250

See fig. 7

VRRM applied

Non-repetitive avalanche energy per leg

EAS

TJ = 25 °C, IAS = 3.0 A, L = 4.40 mH

20

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

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

Document Number: 94173

For technical questions, contact: [e-mail]

www.vishay.com

Revision: 13-Aug-08

1

25CTQ...PbF Series

Vishay High Power Products Schottky Rectifier, 2 x 15 A

	ELECTRICAL SPECIFICATIONS
	PARAMETER		SYMBOL	TEST CONDITIONS		VALUES	UNITS
				15 A	TJ = 25 °C	0.56
	Maximum forward voltage drop per leg		VFM (1)	30 A		0.71	V
	See fig. 1			15 A	TJ = 125 °C	0.50
				30 A		0.64
	Maximum reverse leakage current per leg		IRM (1)	TJ = 25 °C	VR = Rated VR	1.75	mA
	See fig. 2			TJ = 125 °C		70
	Maximum junction capacitance per leg		CT	VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C		900	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		TJ, TStg			- 55 to 150	°C
	storage temperature range
	Maximum thermal resistance,			DC operation		3.25
	junction to case per leg			See fig. 4
			RthJC
	Maximum thermal resistance,			DC operation		1.63	°C/W
	junction to case per package
	Typical thermal resistance,		RthCS	Mounting surface, smooth and greased		0.50
	case to heatsink
	Approximate weight					2.0	g
						0.07	oz.
	Mounting torque	minimum				6 (5)	kgf · cm
							(lbf · in)
		maximum				12 (10)
	Marking device			Case style TO-220AB		25CTQ045

www.vishay.com	For technical questions, contact: [e-mail]	Document Number: 94173
2		Revision: 13-Aug-08

25CTQ...PbF Series

Schottky Rectifier, 2 x 15 A Vishay High Power Products

<![if ! IE]> <![endif]>(A)	1000
<![if ! IE]> <![endif]>CurrentForward	100										<![if ! IE]> <![endif]>(mA)CurrentReverse
	10					TJ	= 150 °C
<![if ! IE]> <![endif]>Instantaneous											<![if ! IE]> <![endif]>I
						TJ	= 125 °C
						TJ = 25 °C
	1										<![if ! IE]> <![endif]>-
											<![if ! IE]> <![endif]>R
<![if ! IE]> <![endif]>-	0.1
<![if ! IE]> <![endif]>F	0	0.2	0.4	0.6	0.8	1.0	1.2	1.4	1.6	1.8	2.0
<![if ! IE]> <![endif]>I

VFM - Forward Voltage Drop (V)

Fig. 1 - Maximum Forward Voltage Drop Characteristics

(Per Leg)

1000

TJ = 150 °C

100

TJ = 125 °C

10

TJ = 100 °C

1 TJ = 75 °C

0.1		TJ = 50 °C

0.01

TJ = 25 °C

0.001

0

5

10

15

20

25

30

35

40

45

VR - Reverse Voltage (V)

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

1000
<![if ! IE]> <![endif]>Capacitance (pF)		TJ = 25 °C
<![if ! IE]> <![endif]>- Junction
<![if ! IE]> <![endif]>T
<![if ! IE]> <![endif]>C
100	10		30	40
0		20			50

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
	0.1				D = 0.50		PDM
<![if ! IE]> <![endif]>- Thermal
					D = 0.33		t1
					D = 0.25		t2
					D = 0.17
	0.01		Single pulse				Notes:
					D = 0.08
			(thermal resistance)
<![if ! IE]> <![endif]>thJC							1. Duty factor D = t1/t2
							2. Peak TJ = PDM x ZthJC + TC
<![if ! IE]> <![endif]>Z	0.001
	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: 94173	For technical questions, contact: [e-mail]	www.vishay.com
Revision: 13-Aug-08		3