1N4946 datasheet(2/2 Pages) ZOWIE

Part #	1N4946

Description	FAST RECOVERY RECTIFIER

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Manufacturer	ZOWIE [Zowie Technology Corporation]

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RATINGS AND CHARACTERISTIC CURVES 1N4942 THRU 1N4948

Zowie Technology Corporation

REV. : 0

FIG.1 - FORWARD CURRENT DERATING CURVE

FIG.3 - TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

1.2

1.0

0.8

0.6

0.4

0.2

0.10

1.00

10.00

0.01

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

25

50

75

100

125

150

175

Single Phase

Half Wave 60Hz

Resistive or

Inductive Load

PULSE WIDTH=300uS

1% DUTY CYCLE

AMBIENT TEMPERATURE,

oC

INSTANTANEOUS FORWARD VOLTAGE,

VOLTS

FIG.2 - MAXIMUM NON-REPETITIVE

PEAK FORWARD SURGE CURRENT

NUMBER OF CYCLES AT 60Hz

8.3ms SINGLE HALF SINE-WAVE

(JEDEC Method)

0

10

20

30

40

50

1

10

100

FIG.4 - TYPICAL REVERSE CHARACTERISTICS

PERCENT OF RATED PEAK REVERSE VOLTAGE,%

0.01

0

20

0.1

1.0

10

20

TJ=25

oC

TJ=75

oC

TJ=125

oC

40

60

80

100

120

140

FIG.5 - TYPICAL JUNCTION CAPACITANCE

FIG.6 - TEST CIRCUIT DIAGRAM AND REVERSE

RECOVERY TIME CHARACTERISTICS

TJ = 25

oC

REVERSE VOLTAGE, VOLTS

.1

1

40

200

.2

.4

1.0

2

4

10

20

40

100

2

4

10

6

20

60

100

50

NONINDUCTIVE

1

NON-

INDUCTIVE

10

NONINDUCTIVE

( + )

25 Vdc

( approx )

( - )

OSCILLOSCOPE

( NOTE 1 )

PULSE

GENERATOR

( NOTE 2 )

D.U.T.

( - )

( + )

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

1 megohm. 22pF.

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

50 ohms.

trr

+0.5A

-0.25A

0

-1.0A

SET TIME BASE

FOR 50/100 ns/cm

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