- 439 -

FIG.5- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM

50

W

NONINDUCTIVE

1W

NON

INDUCTIVE

OSCILLOSCOPE

(NOTE 1)

PULSE

GENERATOR

(NOTE 2)

DUT

(+)

50Vdc

(approx)

(-)

NOTES: 1. Rise Time=7ns max. Input Impedance=

1 megohm 22pf

2. Rise Time=10ns max. Sourse Impedance=

50 ohms

(-)

(+)

10

W

NONINDUCTIVE

-1.0A

-0.25A

0

+0.5A

trr

1cm

SET TIME BASE FOR

5/ 10ns/ cm

RATINGS AND CHARACTERISTIC CURVES (BA157G THRU BA159G)

FIG.2- MAXIMUM NON-REPETITIVE PEAK FORDWARD

SURGE CURRENT

1

24

10

6

40

100

20

10

0

50

60

40

30

NUMBER OF CYCLES AT 60Hz

8.3ms Single Half Sine Wave

JEDEC Method

FIG.3- TYPICAL FORWARD CHARACTERISTICS

1.6

1.8

0.4

0.6

0.8

1.0

1.2

1.4

.03

0.1

0.3

1.0

10

20

3.0

.01

FORWARD VOLTAGE. (V)

Tj=25 C

Pulse Width=300 s

1% Duty Cycle

o

FIG.4- TYPICAL JUNCTION CAPACITANCE

1

2

4

6

10

100

60

40

20

20

10

40

60

100

REVERSE VOLTAGE. (V)

Tj=25 C

0

FIG.1- MAXIMUM FORWARD CURRENT DERATING

CURVE

25

0

50

75

100

125

150

175

1.0

0

0.5

1.5

2.0

AMBIENT TEMPERATURE. ( C)

o

Single Phase

Half Wave 60Hz

Resistive or

Inductive Load

.375"(9.5mm)

Lead Length

70