BYTES SF33, SF31, SF32, SF34, SF36 Datasheet

SF31 SF38THRU

3.0 AMP SUPER FAST RECTIFIERS

FEATURES

VOLTAGE RANGE

50 to 600 Volts

CURRENT

3.0 Amperes

* Low forward voltage drop
* High current capability
* High reliability
* High surge current capability
* Good for switching mode application

.220(5.6)

.197(5.0)
DIA.

DO-27

MECHANICAL DATA

* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any

* Weight: 1.10 grams

.052(1.3)

.048(1.2)

DIA.

Dimensions in inches and (millimeters)

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.

TYPE NUMBER

Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current

.375"(9.5mm) Lead Length at Ta=55 C
Peak Forward Surge Current, 8.3 ms single half sine-wave

superimposed on rated load (JEDEC method)

Maximum Instantaneous Forward Voltage at 3.0A
Maximum DC Reverse Current Ta=25 C

at Rated DC Blocking Voltage Ta=100 C

Maximum Reverse Recovery Time (Note 1)

Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range T , TJ STG

SF31 SF32 SF33 SF34 SF35 SF36 SF38 UNITS

50 100 150 200 300 400 600 V
35 70 105 140 210 280 420 V
50 100 150 200 300 400 600 V

3.0

125

0.95

5.0

50

35

50

-65 +150

1.0(25.4)
MIN.

.375(9.5)
.285(7.2)

1.0(25.4)
MIN.

1.25

1.70

A

A
V

µA

µA

nS

pF
C

NOTES:

1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A

2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.

48

RATING AND CHARACTERISTIC CURVES (SF31 THRU SF38)

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

50

Ω

NONINDUCTIVE

(+)

25Vdc
(approx.)

( )

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

2. Rise Time= 10ns max., Source Impedance= 50 ohms.

D.U.T.

1

Ω

NON­INDUCTIVE

Ω

10
NONINDUCTIVE

OSCILLISCOPE
(NOTE 1)

FIG.3-TYPICAL FORWARD

( )

PULSE
GENERATOR
(NOTE 2)

(+)

+0.5A

0

-0.25A

-1.0A

trr

|
|
|
|
|
|
|
|

1cm

SET TIME BASE FOR

50 / 10ns / cm

FIG.4-TYPICAL REVERSE

CHARACTERISTICS

50

10

3.0

50

10

3.0

FIG.2-TYPICAL FORWARD CURRENT

DERATING CURVE

3.0

2.5

2.0

1.5

1.0

0.5

AVERAGE FORWARD CURRENT,(A)

0

Single Phase

Half Wave 60Hz

Resistive Or Inductive Load

0.375"(9.5mm) Lead Length

0 25 50 75 100 125 150 175

AMBIENT TEMPERATURE,( C)

CHARACTERISTICS

1~SF34

1.0

0.1

3

SF

5~SF36

3

SF

SF38

Pulse Width 300us
1% Duty Cycle

INSTANTANEOUS FORWARD CURRENT,(A)

.01

.4 .6 .8 1.0 1.2 1.4 1.6 1.8

FORWARD VOLTAGE,(V)

FIG.5-MAXIMUM NON-REPETITIVE FORWARD

SURGE CURRENT

125

100

75

50

25

PEAK FORWARD SURGE CURRENT,(A)

0

1 10 5

NUMBER OF CYCLES AT 60Hz

Tj=25 C

Tj=25 C

8.3ms Single Half

Sine Wave

JEDEC method

50

100

1.0

Tj=100 C

Tj=25 C

0.1

REVERSE LEAKAGE CURRENT, ( A)µ

.01

0

20 40 60 80 100 120 140

PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)

FIG.6-TYPICAL JUNCTION CAPACITANCE

175

150

125

100

75

50

JUNCTION CAPACITANCE,(pF)

25

0

.01 .05 .1 .5 1 5 10 50 100

REVERSE VOLTAGE,(V)

49