HIGH EFFICIENCY RECTIFIER

VOLTAGE RANGE

50 to 1000 Volts

HER251 THRU HER258

CURRENT

2.5Ampere

E-mail: sales@cnmic.com

Web Site: www.cnmic.com

CHARACTERISTICS

FIG.4-TYPICAL REVERSE

DERATING CURVE

FIG.1-TYPICAL FORWARD CURRENT

150

175

125

75

100

2.0

50

1.0

0

0

Single Phase

Inductive Load

Half Wave 60Hz

Resistive or

25

AMBIENT TEMPERATURE, (

° C)

0.375"(9.5mm)Lead Length

FORWARD CHARACTERISTICS

FIG.3-TYPICAL INSTANTANEOUS

4

6

40

FORWARD SURGE CURRENT

(JEDEC Method) Tj=Tjmax

8.3ms Single Half Sine-Wave

NUMBER OF CYCLES AT 60 Hz

0

1

50

100

150

28

10

20

60

100

FIG.2-MAXIMUM NON-REPETITIVE PEAK

1 Cycle

FIG.6-TEST CIRCUIT DIAGRAM AND

REVERSE REXOVERY TIME CHARACTERISTIC

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

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

SET TIME BASE FOR

50 /100NS /cm

-1.0A

0.25A

0

+0.5A

OSCILLOSCOPE

(NOTE 1)

PULSE

GENERATIOR

(NOTE 2)

(-)

1Ω

NON

INDUCTIVE

10Ω

NONINDUCTIVE

50Ω

NONINDUCTIVE

D.U.T

(-)

（approx）

25 Vdc

(+)

100

1.2

Tj =25

° C

1.0

0.8

0.6

0.4

1% Duty Cycle

Pulse Width=300us

1.0

0.01

INSTANTANEOUS FORWARD VOLTAGE,(V)

1.4

1.6

1.8

10

100

80

40

60

100

10

1.0

20

0

PERCENT OF RATED PEAK

REVERSE VOLTAGE,(%)

140

120

T =25

° C

j

0.1

j

T =125

° C

Trr

1cm

3.0

Vsig=50mVp-p

TJ=25

° C F=1MHz

REVERSE VOLTAGE,(V)

1

0.1

1.0

10

FIG.5-TYPICAL JUNCTION CAPACITANCE

100

HER

256-H

ER25

8

HER

251-H

ER25

5

100

10

RATING AND CHRACTERISTIC CURVES HER251 THRU HER258