.4

.6

.8

1.0

1.2

1.4

.001

.01

.1

1.0

10

RATING AND CHARACTERISTIC CURVES (HER501 THRU HER508)

FIG.1-TYPICAL FORWARD

CHARACTERISTICS

FIG.4-MAXIMUM NON-REPETITIVE FORWARD

SURGE CURRENT

FIG.5-TYPICAL JUNCTION CAPACITANCE

FORWARD VOLTAGE,(V)

Pulse Width 300us

1% Duty Cycle

0

50

100

200

250

150

(+)

(+)

25Vdc

(approx.)

( )

( )

PULSE

GENERATOR

(NOTE 2)

OSCILLISCOPE

(NOTE 1)

1

NON-

INDUCTIVE

W

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

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

+0.5A

0

-0.25A

-1.0A

|

|

|

|

|

|

|

|

1cm

SET TIME BASE FOR

50 / 10ns / cm

trr

D.U.T.

FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE

RECOVERY TIME CHARACTERISTICS

10

NONINDUCTIVE

50

NONINDUCTIVE

W

W

Tj=25 C

FIG.2-TYPICAL FORWARD CURRENT

1

0

2

3

4

5

6

DERATING CURVE

1.6

1.8

REVERSE VOLTAGE,(V)

175

150

125

100

75

50

25

0

.01

.05

.1

.5

1

5

10

50

100

NUMBER OF CYCLES AT 60Hz

1

10

5

50

100

Tj=25 C

8.3ms Single Half

Sine Wave

JEDEC method

Single Phase

Half Wave 60Hz

Resistive Or Inductive Load

0.375"(9.5mm) Lead Length

AMBIENT TEMPERATURE ( C)

0

25

50

75

100

125

150

175