Vishay 8TQ...PbF Series Data Sheet

TO-220AC

PRODUCT SUMMARY

I

F(AV)

V

R

Schottky Rectifier, 8 A

FEATURES

• 175 °C TJ operation

cathode

1

Cathode

Base

2

3

Anode

8 A

60 to 100 V

• Low forward voltage drop

• High frequency operation

• High purity, high temperature epoxy

• Guard ring for enhanced ruggedness and long term

• Lead (Pb)-free (“PbF” suffix)

• Designed and qualified for industrial level

DESCRIPTION

The 8TQ...PbF 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.

8TQ...PbF Series

Vishay High Power Products

Pb-free

Available

RoHS*

COMPLIANT

encapsulation for enhanced mechanical strength and
moisture resistance

reliability

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 8 A

Range 60 to 100 V

tp = 5 µs sine 850 A

8 Apk, TJ = 125 °C 0.58 V

Range - 55 to 175 °C

VOLTAGE RATINGS

PARAMETER SYMBOL 8TQ060PbF 8TQ080PbF 8TQ100PbF UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

60 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
See fig. 7

Non-repetitive avalanche energy E

Repetitive avalanche current I

I

F(AV)

I

FSM

AR

50 % duty cycle at TC = 157 °C, rectangular waveform 8 A

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 230

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

applied

RRM

850

A

0.50 A

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

Document Number: 94265 For technical questions, contact: [e-mail]
Revision: 06-Jun-08 1

www.vishay.com

8TQ...PbF Series

Vishay High Power Products

Schottky Rectifier, 8 A

ELECTRICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

8 A

Maximum forward voltage drop
See fig. 1

V

FM

16 A 0.88

(1)

8 A

16 A 0.69

Maximum reverse leakage current
See fig. 2

I

RM

Maximum junction capacitance C

Typical series inductance L

T

S

TJ = 25 °C

(1)

T

= 125 °C 7

J

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 500 pF

Measured lead to lead 5 mm from package body 8 nH

Maximum voltage rate of change dV/dt Rated V

T

= 25 °C

J

= 125 °C

T

J

V

= rated V

R

R

R

0.72

0.58

0.55

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
temperature range

Maximum thermal resistance,
junction to case

Typical thermal resistance,
case to heatsink

Approximate weight

Mounting torque

minimum 6 (5)

maximum 12 (10)

Marking device Case style TO-220AC

T

, T

J

Stg

DC operation

R

thJC

R

thCS

See fig. 4

Mounting surface, smooth and greased 0.50

- 55 to 175 °C

2.0

2g

0.07 oz.

kgf · cm

(lbf · in)

8TQ060

8TQ080

8TQ100

V

mA

°C/W

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

Document Number: 94265

2 Revision: 06-Jun-08

8TQ...PbF Series

1000

100

10

Current (A)

1

- Instantaneous Forward

F

I

0.1
0

VFM - Forward Voltage Drop (V)

T

= 175 °C

J

T

= 125 °C

J

TJ = 25 °C

1.40.2 0.4 0.6 0.8 1.0 1.2 1.6

Schottky Rectifier, 8 A

1.8 2.0 2.2

- Reverse Current (mA)

R

I

Vishay High Power Products

100

10

1

0.1

0.01

0.001

0.0001
0 20406080100

TJ = 75 °C

TJ = 50 °C

TJ = 25 °C

VR - Reverse Voltage (V)

TJ = 175 °C

TJ = 150 °C

TJ = 125 °C

TJ = 100 °C

Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.

Reverse Voltage

1000

TJ = 25 °C

- Junction Capacitance (pF)

T

C

100

0

10 11030 4020

50 60 70 80 90 100

VR - Reverse Voltage (V)

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage

10

1

- Thermal Impedance (°C/W)

thJC

Z

0.1

0.0001 0.001 0.01 0.1 1

Single pulse

(thermal resistance)

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

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

Characteristics

thJC

Document Number: 94265 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 06-Jun-08 3