RECTRON

RATING AND CHARACTERISTIC CURVES ( SF51 THRU SF56 )

FIG. 6 - TYPICAL JUNCTION CAPACITANCE

REVERSE VOLTAGE, ( V )

200

100

60

40

20

10

6

4

2

1

.1

.2

.4

1.0

2

4

10

20 40

100

SF51~SF54

SF55~SF56

TJ = 25

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

50

NONINDUCTIVE

10

NONINDUCTIVE

D.U.T

25 Vdc

(approx)

( - )

( - )

( + )

( + )

1

NON-

INDUCTIVE

OSCILLOSCOPE

(NOTE 1)

PULSE

GENERATOR

(NOTE 2)

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

1 megohm. 22pF.

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

50 ohms.

trr

+0.5A

0

-0.25A

-1.0A

1cm

SET TIME BASE FOR

10 ns/cm

FIG. 2 - TYPICAL FORWARD

CURRENT DERATING CURVE

AMBIENT TEMPERATURE (

)

6.0

5.0

4.0

2.0

3.0

1.0

0

25 50 75 100 125 150 175

0

Single Phase

Half Wave 60Hz

Resistive or

Inductive Load

FIG. 3 - TYPICAL REVERSE CHARACTERISTICS

PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)

TJ = 25

TJ = 100

TJ = 150

100

10

1.0

.1

.01

40

0

20

60

80

100

120

140

FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT

NUMBER OF CYCLES AT 60Hz

175

150

125

100

75

50

25

0

1

2

5

10

20

50

100

8.3ms Single Half Sine-Wave

(JEDEC Method)

INSTANTANEOUS FORWARD VOLTAGE, (V)

FIG. 4 - TYPICAL INSTANTANEOUS

0

.2

.4

.6

.8

1.0 1.2

1.4

.01

.1

1.0

10

100

FORWARD CHARACTERISTICS

Pulse Width = 300uS

1% Duty Cycle

TJ = 25