BA157 datasheet(2/2 Pages) PFS

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FAST RECOVER RECTIFIER

VOLTAGE RANGE

400 to 1000 Volts

BA157 THRU BA159

CURRENT

1.0 Ampere

Web Site:

1.2

1.0

0.2

FIG.2-MAXIMUM NON-REPETITIVE PEAK

100

T =100

° C

CHARACTERISTICS

100

NUMBER OF CYCLES AT 60 Hz

8.3m s Single Half Sine-Wave

(JEDEC M ethod) Tj=Tjmax

FORWARD SURGE CURRENT

FIG.4-TYPICAL REVERSE

DERATING CURVE

FIG.1-TYPICAL FORWARD CURRENT

150

175

125

100

0.8

0.6

0.4

Single Phase

Inductive Load

Half Wave 60Hz

Resistive or

FIG.3-TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

AMBIENT TEMPERATURE, (

° C)

T =25

° C

100

1.0

0.1

PERCENT OF RATED PEAK

REVERSE VOLTAGE,(%)

100

1.4

Tj =25

° C

1.2

1.0

0.8

0.6

1% Duty Cycle

Pulse Width=300us

1.0

0.1

0.01

100

INSTANTANEOUS FORWARD VOLTAGE,(V)

FIG.5-TYPICAL JUNCTION CAPACITANCE

1.0

0.1

REVERSE VOLTAGE,(V)

TJ=25

° C F=1MHz

1.6

1.8

2.0

140

120

0.375"(9.5mm) Lead Length

Vsig=50mVp-p

RATING AND CHRACTERISTIC CURVES BA157 THRU BA159

FIG.6-TEST CIRCUIT DIAGRAM AND

REVERSE REXOVERY TIME CHARACTERISTIC

NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF

2.Rise time=10ns max.Source Impedance=50 ohms

SET TIME BASE FOR

50 /100NS /cm

-1.0A

0.25A

+0.5A

OSCILLOSCOPE

(NOTE 1)

PULSE

GENERATIOR

(NOTE 2)

(-)

1Ω

NON

INDUCTIVE

10Ω

NONINDUCTIVE

50Ω

N ONINDUCTIVE

D.U.T

(-)

（approx）

25 Vdc

(+)

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