LESHAN RADIO COMPANY, LTD.

9A–2/2

SF31-SF36

RATING AND CHARACTERISTIC CURVES OF SUPER FAST DIODES

0

50

100

150

157

6.0

5.0

4.0

3.0

2.0

1.0

0

Single Phase

Half Wave 60Hz

Resistive or

Inductive Load

FIG. 2 – TYPICAL FORWARD

CURRENT DERATING CURVE

AMBIENT TEMPER ATURE, (ºC)

+0.5A

0

-0.25A

-1.0A

1cm

Trr

NOTES:1.Rise Time=7ns max.

Input Impedance=1megohm.22pF.

2.Rise Time=10ns max.

Source Impedance=50 ohms.

(+)

PULSE

GENERAT O R

(NOTE 2)

(-)

D.U.T.

OSCILLOSCOPE

(NOTE 1)

1

Ω

NON.

INDUCTIVE

(+)

25Vdc

(APPROX)

(-)

50

Ω

10

Ω

NONINDUCTIVE

NONINDUCTIVE

FIG.1–TEST CIRCUIT DIAGRAM AND

REVERSE RECOVERY TIME CHARACTERISTIC

SET TIME

BASE FOR 10 ns/cm

PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)

FIG. 3 – TYPICAL REVERSE

CHARACTERISTICS

FIG. 6 – TYPICAL JUNCTION CAPACITANCE

FIG. 5 – MAXINUM NON-REPETITIVE

FOWARD SURGE CURRENT

REVERSE VOLTAGE,(V)

NUMBER OF CYCLES AT 60Hz

FIG. 4 – TYPICAL INSTANTANEOUS

FORWARD CHARACTERISTICS

INSTANTANEOUS FORWARD VOLTAGE,(V)

20

40

60

80

100

120

1000

100

10

1.0

0.1

.01

.2

.4

.6

.8

1.0

1.2

1.4

10.0

1.0

.1

.01

.001

Pulse Width=300

µs

1% Duty Cycle

8.3ms Single Half Sine-Wave

(JEDEC Method)

1

2

5

10

20

50

100

175

150

125

100

75

50

25

0

.1

.2

.4

1.0

2

4

10

20

40

100

200

100

60

40

20

10

6

4

2

1

SF31 ~ SF34

SF35 ~ SF36