CHENG- YI

CHENG- YI

ELECTRONIC

RATING AND CHARACTERISTICS CURVES

SSF81 THRU SSF84

SSF81 thru SSF84

SUPER FAST RECOVERY RECTIFIER

SUPER FAST RECOVERY RECTIFIER

(+)

()

50

NONINDUCTIVE

1

NON-

INDUCTIVE

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

1 megohm, 22pF.

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

50 ohms.

10

NONINDUCTIVE

D.U.T.

OSCILLOSCOPE

(NOTE 1)

25 Vdc

(approx.)

(+)

()

PULSE

GENERATOR

(NOTE 2)

SET TIME BASE

FOR 5 / 10ns/cm

1cm

-1.0A

-0.25

0

+0.5A

trr

Fig. 2 - FORWARD CURRENT DERATING CURVE

0

AMBIENT TEMPERATURE, C

25

50

75

100

150

125

175

0

4.0

2.0

6.0

8.0

10.0

12.0

SINGLE PHASE

HALF WAVE

60Hz

RESISTIVE OR

INOUCTIVE LOAD

.375" LEAD LENGTH

Fig. 3 - TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

INSTANTANEOUS FORWARD VOLTAGE, VOLTS

.2

.4

.6

.8

1.0

1.2

1.4

.01

0.1

1.0

10

0

T

= 25 C

J

Fig. 4 - TYPICAL JUNCTION CAPACITANCE

REVERSE VOLTAGE, VOLTS

100

10

1

1

10

100

0

T =25C

J

Fig. 5 - PEAK FORWARD SURGE CURRENT

NUMBER OF CYCLES AT 60Hz

100

10

1

0

50

100

150

200

250

0

T =25C

J

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