FAST RECTIFIER. SF28 Datasheet

SF28 RECTIFIER. Datasheet pdf. Equivalent

Part SF28
Description SUPER FAST RECTIFIER
Feature BL GALAXY ELECTRICAL SUPER FAST RECTIFIER SF21- - - SF28 VOLTAGE RANGE: 50 --- 600 V CURRENT: 2.0 A.
Manufacture GALAXY ELECTRICAL
Datasheet
Download SF28 Datasheet

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SF28
BL GALAXY ELECTRICAL
SUPER FAST RECTIFIER
SF21- - - SF28
VOLTAGE RANGE: 50 --- 600 V
CURRENT: 2.0 A
FEATURES
Low cost
Low leakage
Low forward voltage drop
High current capability
Easily cleaned with alcohol,Isopropanol
and similar solvents
The plastic material carries U/L recognition 94V-0
MECHANICAL DATA
Case:JEDEC DO--15,molded plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Polarity: Color band denotes cathode
Weight: 0.014 ounces,0.39 grams
Mounting position: Any
DO - 15
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 UNITS
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
VRRM
VRMS
VDC
50
35
50
Maximum average forw ard rectified current
9.5mm lead length,
@TA=75
Peak forw ard surge current
IF(AV)
8.3ms single half-sine-w ave
IFSM
superimposed on rated load @TJ=125
Maximum instantaneous forw ard voltage
@ 2.0A
VF
Maximum reverse current
@TA=25
at rated DC blocking voltage @TA=125
IR
Maximum reverse recovery time (Note1)
trr
Typical junction capacitance (Note2)
CJ
Typical thermal resistance
(Note3)
RθJA
Operating junction temperature range
TJ
Storage temperature range
TSTG
NOTE: 1. Measured with IF=0.5A, IR=1A, Irr=0.25A.
2. Measured at 1.0MHZ and applied rev erse v oltage of 4.0V DC.
3. Thermal resistance f rom junction to ambient.
100 150 200 300 400 500 600
70 105 140 210 280 350 420
100 150 200 300 400 500 600
2.0
V
V
V
A
50
0.95 1.3
5.0
50.0
35
60
20
- 55 ----- + 125
- 55 ----- + 150
1.7
30
A
V
A
ns
pF
/W
www.galaxycn.com
Document Number 0264002
BLGALAXY ELECTRICAL
1.



SF28
RATINGS AND CHARACTERISTIC CURVES
SF21 - - - SF28
FIG.1 -- TEST CIRCUIT DIAGRAM AND REV ERSE RECOVERY TIM E CHARACTERISTIC
50 10
N 1. N 1.
+ 0 .5 A
trr
(+)
25VDC
(approx)
(-)
D.U.T.
1
NONIN-
DUCTIVE
OSCILLOSCOPE
(NOTE 1)
PULSE
GENERATOR
(NOTE2)
N OTES:1 .R ISE TIME = 7n s MAX.IN PU T IMPED AN C E = 1M .2 2p F.
JJJJJ2.R ISE TIME =10 ns MAX.SOU R C E IMPED AN C E=5 0 .
0
-0 .2 5 A
-1 .0 A
1cm
SE T TIM E BA SE FOR 10 ns/cm
FIG.2 -- TYPICAL FORW ARD CHARACTERISTIC
100
10
1
0.1
0.01
.4
.6
Tj=25oC
Pulse Width=300 s
1% Duty Cycle
.8 1.0 1.2 1.4 1.6 1.8
INSTA NTANE OUS FORW ARD VOLTAGE , VOLTS
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
200
100
60
40
20
10
6
4
TJ=25
2
1
0.1 0.2 0.4 1 2 4
SF21 - SF24
SF25 - SF28
10 20 40 100
REV ERS E V OLTA GE ,VOLTS
FIG.3 -- FORW ARD DERATING CURVE
z
3.0
Single Phase
2.5 Half Wave 60HZ
Resistive or
Inductive Load
2.0 0.375"(9.5mm)Lead Length
1.5
1.0
0.5
0
0 25 50 75 100 125 150 175
A M BIENT TE M P ERA TURE,
FIG.5 -- PEAK FORW ARD SURGE CURRENT
70
60
50 8.3msSingleHalf
Sine-Wave
40
30
20
10
0
1
5 10
50 100
NUMBER OF CYCLES AT 60Hz
Document Number 0264002
BLGALAXY ELECTRICAL
www.galaxycn.com
2.





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