HER501 THRU HER508

Page: 2

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

+0.5A

0

-0.25A

-1.0A

Trr

1cm

SET TIME BASE

FOR 10/20 ns/cm

FIG. 3-TYPICAL REVERSE CHARACTERISTICS

1000

100

10

1.0

0.1

.01

0

20

40

60

80

100

120

140

PERCENT OF RATED PEAK REVERSE VOLTAGE (%)

FIG. 5-MAXIMUM NON-REPETITIVE

FORWARD SURGE CURRENT

300

200

100

0

8.3 ms Single Half Sine Wave

(JEDEC Method)

1

10

100

1000

RATINGS AND CHARACTERISTIC CURVE HER501 THRU HER508

6.0

5.0

4.0

3.0

2.0

1.0

0

25 50 75 100 125 150 175

AMBIENT TEMPERATURE (

FIG. 2-TYPICAL FORWARD

CURRENT DERATING CURVE

Single Phase

Half Wave 60

Hz

Resistive or

Inductive

FIG. 4-TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

100.0

10.0

1.0

.1

.01

.4

.6

8

1.0

1.2

1.4

1.6

1.8

2.0

INSTANTANEOUS FORWARD VOLTAGE (V)

HER501~503

HER504~505

HER506~508

FIG. 6-TYPICAL JUNCTION CAPACITANCE

200

100

60

40

20

10

6

4

2

1

HER501~505

.1

.2

.4

1.0

2

4

10

20

40

100

INSTANTANEOUS FORWARD VOLTAGE (V)

HER506~508

PULSE

GENERATOR

( NOTE 2 )

(+)

(approx)

(-)

D.U.T.

1

Ω

NON

INDUCTIVE

OSCILLOSCOPE

( NOTE 1 )

50

Ω

NO INDUCTIVE

100

Ω

NO INDUCTIVE

(-)

(+)

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

IMPEDANCE=1 MOhms 22PF

2. RISE TIME =10ns MAX. SOURCE

IMPEDANCE=50 OHMS