FAST RECTIFIERS. SF21 Datasheet

SF21 RECTIFIERS. Datasheet pdf. Equivalent

Part SF21
Description 2.0 AMP SUPER FAST RECTIFIERS
Feature SF21 2.0 AMP SUPER FAST RECTIFIERS THRU SF28 VOLTAGE RANGE 50 to 600 Volts CURRENT FEATURES * Lo.
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SF21
SF21 THRU SF28
2.0 AMP SUPER FAST RECTIFIERS
FEATURES
* Low forward voltage drop
* High current capability
* High reliability
* High surge current capability
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: 0.40 grams
VOLTAGE RANGE
50 to 600 Volts
CURRENT
2.0 Amperes
DO-15
.140(3.6)
.104(2.6)
DIA.
1.0(25.4)
MIN.
.300(7.6)
.230(5.8)
.034(.9)
.028(.7)
DIA.
1.0(25.4)
MIN.
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 2.0A
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 TJ, TSTG
SF21
50
35
50
SF22
100
70
100
SF23
150
105
150
SF24
200
140
200
SF25
300
210
300
SF26
400
280
400
SF28 UNITS
600 V
420 V
600 V
2.0 A
0.95
60
5.0
50
35
60
-65 +150
1.25
1.70
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.
46



SF21
RATING AND CHARACTERISTIC CURVES (SF21 THRU SF28)
FIG.1- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50
NONINDUCTIVE
10
NONINDUCTIVE
(+)
25Vdc
(approx.)
()
D.U.T.
1
NON-
INDUCTIVE
OSCILLISCOPE
(NOTE 1)
+0.5A
()
PULSE
GENERATOR
(NOTE 2)
(+)
0
-0.25A
trr
|
|
|
|
|
|
|
|
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
-1.0A
1cm
SET TIME BASE FOR
50 / 10ns / cm
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
2.4
2.0
1.6
1.2
0.8
0.4
0
0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
25 50 75 100 125 150
AMBIENT TEMPERATURE,( C)
175
FIG.3-TYPICAL FORWARD
CHARACTERISTICS
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
50 50
10
3.0
1.0
0.1
Tj=25 C
Pulse Width 300us
1% Duty Cycle
10
3.0
1.0
0.1
Tj=100 C
Tj=25 C
.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
100
80
60
Tj=25 C
8.3ms Single Half
40 Sine Wave
JEDEC method
20
0
1
5 10
50 100
NUMBER OF CYCLES AT 60Hz
.01
0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
175
150
125
100
75
50
25
0
.01
FIG.6-TYPICAL JUNCTION CAPACITANCE
.05 .1
.5 1
5
REVERSE VOLTAGE,(V)
10
50 100
47





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