RECTIFIER DIODES. SF28 Datasheet

SF28 DIODES. Datasheet pdf. Equivalent

Part SF28
Description SUPER FAST RECTIFIER DIODES
Feature SF21 - SF29 PRV : 50 - 1000 Volts Io : 2.0 Amperes FEATURES : * * * * * * High current capability Hi.
Manufacture EIC discrete
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SF28
SF21 - SF29
PRV : 50 - 1000 Volts
Io : 2.0 Amperes
SUPER FAST RECTIFIER DIODES
D2
FEATURES :
* High current capability
* High surge current capability
* High reliability
* Low reverse current
* Low forward voltage drop
* Super fast recovery time
MECHANICAL DATA :
* Case : D2 Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
Method 208 guaranteed
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.465 gram
0.161 (4.1)
0.154 (3.9)
0.034 (0.86)
0.028 (0.71)
1.00 (25.4)
MIN.
0.284 (7.2)
0.268 (6.8)
1.00 (25.4)
MIN.
Dimensions in inches and ( millimeters )
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25 °C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
RATING
SYMBOL SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 SF29 UNITS
Maximum Recurrent Peak Reverse Voltage
VRRM 50 100 150 200 300 400 600 800 1000 Volts
Maximum RMS Voltage
VRMS 35 70 105 140 210 280 420 560 700 Volts
Maximum DC Blocking Voltage
VDC 50 100 150 200 300 400 600 800 1000 Volts
Maximum Average Forward Current
0.375"(9.5mm) Lead Length
Ta = 55 °C
Peak Forward Surge Current,
8.3ms Single half sine wave Superimposed
on rated load (JEDEC Method)
Maximum Peak Forward Voltage at IF = 2.0 A.
IF(AV)
IFSM
VF
2.0
75
0.95 1.7
Amps.
Amps.
2.2 Volts
Maximum DC Reverse Current
at Rated DC Blocking Voltage
IR
5.0
20 µA
Maximum Reverse Recovery Time ( Note 1 )
Trr
35 ns
Typical Junction Capacitance ( Note 2 )
CJ
50 pf
Junction Temperature Range
TJ
- 65 to + 150
°C
Storage Temperature Range
TSTG
- 65 to + 150
°C
Notes :
( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A.
( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC
UPDATE : MARCH 8, 2002



SF28
RATING AND CHARACTERISTIC CURVES ( SF21 - SF29 )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
10
+ 0.5 A
Trr
+
50 Vdc
(approx)
D.U.T.
1
PULSE
GENERATOR
( NOTE 2 )
OSCILLOSCOPE
( NOTE 1 )
0
- 0.25 A
- 1.0 A
NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF.
2. Rise time = 10 ns max., Source Impedance = 50 ohms.
3. All Resistors = Non-inductive Types.
1 cm
SET TIME BASE FOR 15 ns/cm
FIG.2 - DERATING CURVE FOR OUTPUT
RECTIFIED CURRENT
2.5
2.0
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
75
8.3 ms SINGLE HALF SINE WAVE
Ta = 50 °C
60
1.5 45
1.0 30
0.5
60Hz RESISTIVE OR INDUCTIVE LOAD
0
0 25 50 75 100 125
150
AMBIENT TEMPERATURE, ( °C)
175
15
0
1
2
4 6 10
20
40 60 100
NUMBER OF CYCLES AT 60Hz
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
100
SF21 - SF24
10
SF28 - SF29
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
100
TJ = 100 °C
10
1.0 1 TJ = 25 °C
SF25 - SF27
0.1
0.01
0
Pulse Width = 300 µs
2% Duty Cycle
TJ = 25 °C
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
FORWARD VOLTAGE, VOLTS
0.1
0 20 40 60 80 100 120 140
PERCENT OF RATED REVERSE
VOLTAGE, (%)





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