1N4934 datasheet(2/2 Pages) FRONTIER

Part #	1N4934

Description	1A FAST RECOVERY PLASTIC RECTIFIER

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Manufacturer	FRONTIER [Frontier Electronics.]

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1N4933 THRU 1N4937

Page: 1

0

20

40

60

80

100

120

140

+0.5A

0

-0.25A

-1.0A

Trr

1cm

SET TIME BASE

FOR 10/20 ns/cm

NOTE: 1. RISE TIME=7ns MAX. INPUT

IMPEDANCE=1 MOhms 22PF

2. RISE TIME =10ns MAX. SOURCE

IMPEDANCE=50 OHMS

FIG. 1-TEST CIRCUIT DIAGRAM AND REVERSE

RECOVERY TIME CHARACTERISTIC

PULSE

GENERATOR

( NOTE 2 )

(+)

25 Vdc

(approx)

(-)

D.U.T.

1

Ω

NON-

INDUCTIVE

OSCILLOSCOPE

( NOTE 1 )

50

Ω

NO INDUCTIVE

10

Ω

NO INDUCTIVE

(-)

(+)

1.0 CYCLE

Fig. 5-MAXIMUM FORWARD SURGE

NUMBER OF CYCLES

30

20

10

0

1

10

100

NUMBER OF CYCLES AT 60 HZ

TA=75

oC

8.3ms SINGLE HALF

SINE-WAVE JEDEC METHOD

FIG. 3-TYPICAL JUNCTION CAPACITANCE

f = 1 MHz

Vsig = 50 mVp-p

Tj=25

oC

20

10

1

10

100

REVERSE VOLTAGE, VOLTS

FIG. 4-TYPICAL REVERSE CHARACTERISTICS

TJ=100

oC

TJ=25

oC

100

10

1.0

0.1

.01

PERCENT OF RATED PEAK REVERSE VOLTAGE

10

1.0

0.1

.01

.4

.6

.8

1.0

1.2

1.4 1.6

INSTANTANEOUS FORWARD VOLTAGE, (V)

G. 6-TYPICAL INSTANTANEOUS

Tj=25

oC

PULSE WIDTH =300us

1% DUTY CYCLE

TA-AMBIENT TEMPERATURE (

OC)

Fig. 2-MAXIMUM CURRENT DERATING CURVE

0

20

40

60

80

100 120 140 160 180 200

1.0

0.8

0.6

0.4

0.2

0

I(pk)

I(AV)

=

π

RESISTIVE OR

INDUCTIVE LOAD

0.375” (9.5mm)

LEAD LENGTH

CAPACITIVE

LOAD

I(pk)

I(AV)

5

= 10

20

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