BA157 Просмотр технического описания (PDF) - SynSemi, Inc.

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производитель

BA157

FAST RECOVERY RECTIFIER DIODES

SynSemi, Inc. 

RATING AND CHARACTERISTIC CURVES ( BA157 - BA159 )

FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM

50 Ω

10 Ω

Trr

+ 0.5 A

+

50 Vdc

(approx.)

D.U.T.

PULSE

GENERATOR

( NOTE 2 )

0

- 0.25 A

1Ω

OSCILLOSCOPE

( NOTE 1 )

- 1.0 A

NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF.

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

3. All Resistors = Non-inductive Types.

SET TIME BASE FOR 50-100 ns/cm

1 cm

FIG.2 - DERATING CURVE FOR OUTPUT

RECTIFIED CURRENT

1.0

0.8

FIG.3 - MAXIMUM NON-REPETITIVE PEAK

FORWARD SURGE CURRENT

35

8.3 ms SINGLE HALF SINE WAVE

28

Ta = 50 °C

0.6

21

0.4

14

0.2

RESISTIVE OR INDUCTIVE LOAD

0

0

25

50

75

100 125 150 175

AMBIENT TEMPERATURE, ( °C)

7

0

1

2

4 6 10

20

40 60 100

NUMBER OF CYCLES AT 60Hz

FIG.4 - TYPICAL FORWARD CHARACTERISTICS

20

10

Pulse Width = 300 µs

2% Duty Cycle

1.0

FIG.5 - TYPICAL REVERSE CHARACTERISTICS

10

TJ = 100 °C

1.0

TJ = 25 °C

0.1

0.1

TJ = 25 °C

0.01

0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

FORWARD VOLTAGE, VOLTS

0.01

0

20

40

60

80 100

120 140

PERCENT OF RATED REVERSE VOLTAGE, (%)

Page 2 of 2

Rev. 02 : March 24, 2005

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