LESHAN RADIO COMPANY, LTD.

12A–2/2

1F1-1F7

RATING & CHARACTERISTIC CURVES OF FAST RECOVERY DIODES

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 50/100ns/cm

0

50

100

150

175

1.0

.8

.6

.4

.2

0

Single Phase

Half Wave 60Hz

Resistive or

Inductive Load

0

20

40

60

80

100

120

140

10

1.0

.1

.01

8.3ms Single Half Sine-Wave

(JEDEC Method)

1

5

10

50

100

200

100

50

30

20

10

.4

.6

.8

1.0

1.2

1.4

1.6

1.8

20

10

1.0

0.1

.01

Pulse Width=300

µs

1% Duty Cycle

.1

.2

.4

1.0

2

4

10

20

40

100

200

100

60

40

20

10

6

4

2

1

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)