Vishay 8AF Series Data Sheet

B-47

PRODUCT SUMMARY

I

F(AV)

Vishay High Power Products

Pressfit Rectifier Diodes, 50 A

FEATURES

• Convenient pressfit package

• Available with and without leads

• High surge capabilities

• Fully characterized bulletin

• RoHS compliant

• Designed and qualified for industrial level

50 A

8AF Series

RoHS

COMPLIANT

MAJOR RATINGS AND CHARACTERISTICS

PARAMETER TEST CONDITIONS VALUES UNITS

I

F(AV)

I

F(RMS)

I

FSM

2

I

t

2

I

√t 25 455 A2√s

V

RRM

T

J

T

C

50 Hz 714

60 Hz 747

50 Hz 2546

60 Hz 2324

Range 50 to 400 V

50 A

150 °C

79 A

- 65 to 195 °C

ELECTRICAL SPECIFICATIONS

VOLTAGE RATINGS

V

TYPE
NUMBER

8AF

, MAXIMUM REPETITIVE

VOLTAGE

CODE

05 50 75

1 100 150 7

2 200 300

4 400 500 5

RRM

PEAK REVERSE VOLTAGE

V

V

, MAXIMUM NON-REPETITIVE

RSM

PEAK REVERSE VOLTAGE

V

AT T

I

RRM

J

A

A2s

MAXIMUM

= TJ MAXIMUM

mA

7

5

Document Number: 93530 For technical questions, contact: [e-mail]
Revision: 17-Jun-08 1

www.vishay.com

8AF Series

Vishay High Power Products

Pressfit Rectifier Diodes, 50 A

FORWARD CONDUCTION

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum average forward current
at case temperature

Maximum RMS forward current I

Maximum peak, one cycle forward,
non-repetitive surge current

Maximum I

Maximum I

2

t for fusing I2t

2

√t for fusing I2√t t = 0.1 to 10 ms, no voltage reapplied 25 455 A2√s

Low level value of threshold voltage V

High level value of threshold voltage V

Low level value of forward slope resistance r

High level value of forward slope resistance r

Maximum forward voltage drop V

I

F(AV)

F(RMS)

I

FSM

F(TO)1

F(TO)2

f1

f2

FM

180° conduction, half sine wave

t = 10 ms

t = 8.3 ms 747

t = 10 ms

t = 8.3 ms 628

t = 10 ms

t = 8.3 ms 2324

t = 10 ms

t = 8.3 ms 1643

(16.7 % x π x I
(π x I

F(AV)

(16.7 % x π x I
(π x I

F(AV)

TJ = 25 °C, IFM = π x rated I

No voltage
reapplied

100 % V
reapplied

No voltage
reapplied

100 % V
reapplied

< I < π x I

F(AV)

< I < 20 x π x I

< I < π x I

F(AV)

< I < 20 x π x I

RRM

RRM

F(AV)

F(AV)

Sinusoidal half wave,
initial T

=

J

maximum

T

J

), TJ = TJ maximum 0.60

F(AV)

), TJ = TJ maximum 0.68

), TJ = TJ maximum 6.66

F(AV)

), TJ = TJ maximum 6.25

F(AV)

50 A

150 °C

79 A

714

600

2546

1800

1.45 V

A

A2s

V

mΩ

THERMAL AND MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum junction operating
and storage temperature range

Maximum thermal resistance,
junction to case

Typical thermal resistance,
case to heatsink

Approximate weight

Case style See dimensions - link at the end of datasheet B-47

Note

(1)

Mounting: A 12.6 ± 0.02 mm (0.496 to 0.497") diameter hole should be drilled in heatsink, the leading edge chamfered to 0.038 mm
(0.015") x 45°. The autodiode should then be press fitted, ensuring that the sides of the autodiode are kept parallel to the sides of the hole.

, T

T

J

Stg

R

thJC

DC operation 0.60

- 65 to 195 °C

K/W

R

thCS

As per mounting details, see note

(1)

0.50

10 g

0.36 oz.

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

Document Number: 93530

2 Revision: 17-Jun-08

8AF Series

ΔR

CONDUCTION

thJC

Pressfit Rectifier Diodes, 50 A

Vishay High Power Products

CONDUCTION ANGLE SINUSOIDAL CONDUCTION RECTANGULAR CONDUCTION TEST CONDITIONS UNITS

180°

120°

90°

60°

30°

0.042 0.026

0.045 0.043

0.06 0.06

0.10 0.10

0.15 0.15

T

= TJ maximum K/W

J

Note

• The table above shows the increment of thermal resistance R

200

190

180

170

8AF Series
R (DC) = 0.6 K/W

thJC

Conductio n Angle

when devices operate at different conduction angles than DC

thJC

200

190

180

170

8AF Series
R (DC) = 0.6 K/W

thJC

Conduction Period

160

150

Maximum Allo wable Case Te mperatu re (°C)

140

0 5 10 15 20 25 30 35 40 45 50 55

Average Forward Current (A)

30°

60°

90°

120°

180°

160

150

Maximum Allowable Case Temperature (°C)

140

0 1020304050607080

Average Forward Current (A)

30°

60°

90°

120°

180°

Fig. 1 - Current Ratings Characteristics Fig. 2 - Current Ratings Characteristics

80

180°
120°

70

60

50

40

30

20

10

Maximum Average Forward Power Loss (W)

90°
60°
30°

0

0102030405060

Average Forward Current (A)

RMS Limit

Cond ucti on Angl e

8AF Series
T = 195°C

J

2

3

5

1

0

1

5

0 25 50 75 100 125 150

Max i mum Al lowab le Ambi ent Tempe rat ur e (°C )

R

t

h

S

1

K

/

K

/

W

K

/

W

K

K

/

W

A

.

5

K

W

/

W

=

/

1

W

K

/

W

­D

e

l

t

a

R

Fig. 3 - Forward Power Loss Characteristics

DC

Document Number: 93530 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 17-Jun-08 3