Vishay 8TQ..., 8TQ...S Data Sheet

Bulletin PD-20561 rev. D 07/03

8TQ...

8TQ...S

SCHOTTKY RECTIFIER

8 Amp

IF(AV) = 8 Amp

VR = 80 - 100V

Major Ratings and Characteristics

Characteristics		8TQ	Units
IF(AV)	Rectangular	8	A
	waveform
VRRM range		80 - 100	V
IFSM	@ tp = 5 µs sine	850	A
VF	@8 Apk, TJ = 125°C	0.58	V
TJ	range	- 55 to 175	°C

Description/ Features

The 8TQ 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, free-wheeling diodes, and reverse battery protection.

175° C TJ operation

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

Low forward voltage drop

High frequency operation

Guard ring for enhanced ruggedness and long term reliability

Case Styles

8TQ...

8TQ... S

TO-220

D2PAK

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8TQ... Series

Bulletin PD-20561 rev. D 07/03

Voltage Ratings

	Part number	8TQ080	8TQ100
	VR Max. DC Reverse Voltage (V)	80	100
	VRWM Max. Working Peak Reverse Voltage (V)

Absolute Maximum Ratings

	Parameters	8TQ	Units	Conditions
IF(AV)	Max. Average Forward Current	8	A	50% duty cycle @ TC = 157° C, rectangular wave form
	* See Fig. 5
IFSM	Max. Peak One Cycle Non-Repetitive	850		5µs Sine or 3µs Rect. pulse	Following any rated
			A		load condition and
	Surge Current * See Fig. 7	230		10ms Sine or 6ms Rect. pulse	with rated VRRM applied
EAS	Non-Repetitive Avalanche Energy	7.50	mJ	TJ = 25 °C, IAS = 0.50 Amps, L = 60 mH
IAR	Repetitive Avalanche Current	0.50	A	Current decaying linearly to zero in 1 µsec
				Frequency limited by TJ max. VA = 1.5 x VR typical

Electrical Specifications

	Parameters		8TQ	Units		Conditions
VFM	Max. Forward Voltage Drop	(1)	0.72	V	@ 8A	TJ	= 25 °C
	* See Fig. 1		0.88	V	@ 16A
			0.58	V	@ 8A	TJ	= 125 °C
			0.69	V	@ 16A
IRM	Max. Reverse Leakage Current (1)		0.55	mA	TJ = 25 °C	VR	= rated VR
	* See Fig. 2		7	mA	TJ = 125 °C
CT	Max. Junction Capacitance		500	pF	VR = 5VDC (test signal range 100Khz to 1Mhz) 25 °C
LS	Typical Series Inductance		8	nH	Measured lead to lead 5mm from package body
dv/dt	Max. Voltage Rate of Change		10000	V/ µs
	(Rated VR)

(1) Pulse Width < 300µs, Duty Cycle < 2%

Thermal-Mechanical Specifications

	Parameters		8TQ	Units	Conditions
TJ	Max. Junction Temperature Range		-55 to 175	°C
Tstg	Max. Storage Temperature Range		-55 to 175	°C
RthJC	Max. Thermal Resistance Junction		2.0	°C/W	DC operation * See Fig. 4
	to Case
RthCS	Typical Thermal Resistance, Case to		0.50	°C/W	Mounting surface , smooth and greased
	Heatsink
wt	Approximate Weight		2 (0.07)	g (oz.)
T	Mounting Torque	Min.	6 (5)	Kg-cm
		Max.	12 (10)	(Ibf-in)
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																		8TQ... Series
															Bulletin	PD-20238			rev. D			07/03
	1000													100	TJ = 175°C
													<![if ! IE]> <![endif]>(mA)	10	150°C
															125°C
													<![if ! IE]> <![endif]>R	1
													<![if ! IE]> <![endif]>I
													<![if ! IE]> <![endif]>-		100°C
													<![if ! IE]> <![endif]>Current	0.1
															75°C
	100
													<![if ! IE]> <![endif]>Reverse	0.01	50°C
<![if ! IE]> <![endif]>(A)															25°C
<![if ! IE]> <![endif]>F														0.001
<![if ! IE]> <![endif]>I
<![if ! IE]> <![endif]>-
<![if ! IE]> <![endif]>Current														0.0001
														0	20	40		60			80	100
<![if ! IE]> <![endif]>InstantaneousForward	10						TJ= 175°C								Reverse Voltage - VR (V)
														Fig. 2 - Typical Values of Reverse Current
							TJ= 125°C
															Vs. Reverse Voltage
							TJ=		25°C					1000
													<![if ! IE]> <![endif]>(pF)
													<![if ! IE]> <![endif]>T
													<![if ! IE]> <![endif]>- C			T	= 25°C
													<![if ! IE]> <![endif]>Junction Capacitance
	1															J
	0.1													100
	0	0.2	0.4	0.6	0.8	1	1.2	1.4	1.6	1.8	2	2.2		0	10 20 30 40		50	60	70	80	90 100110
			Forward Voltage Drop - VFM (V)												Reverse Voltage - VR (V)

Fig. 1 - Maximum Forward Voltage Drop Characteristics	Fig. 3 - Typical Junction Capacitance
	Vs. Reverse Voltage

	10
<![if ! IE]> <![endif]>(°C/ W)	1
<![if ! IE]> <![endif]>thJC
<![if ! IE]> <![endif]>Z		D = 0.75						PDM
<![if ! IE]> <![endif]>Impedance
	0.1	D = 0.50
		D = 0.33							t1
		D = 0.25
		D = 0.20					Notes:		t	2
<![if ! IE]> <![endif]>Thermal	0.01
				Single Pulse			1. Duty factor D = t 1/ t 2
							2. Peak T = P		x Z	+ T
			(Thermal Resistance)
							J	DM		thJC	C
	0.001
	0.00001		0.0001	0.001	0.01	0.1	1			10	100

t 1 , Rectangular Pulse Duration (Seconds)

Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics

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