SF21 - SF29
SUPER FAST RECTIFIER DIODES
PRV : 50 - 1000 Volts
Io : 2.0 Amperes
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
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%.
SYMBOL SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 SF29 UNITS
Maximum Recurrent Peak Reverse Voltage
V
RRM
50
100
150
200
300
400
600
800
1000 Volts
Maximum RMS Voltage
V
RMS
35
70
105
140
210
280
420
560
700
Volts
Maximum DC Blocking Voltage
V
DC
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 I
F
= 2.0 A.
V
F
0.95
Volts
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Maximum Reverse Recovery Time ( Note 1 )
Trr
35
ns
Typical Junction Capacitance ( Note 2 )
C
J
50
pf
Junction Temperature Range
T
J
- 65 to + 150
C
Storage Temperature Range
T
STG
- 65 to + 150
C
Notes :
( 1 ) Reverse Recovery Test Conditions : I
F
= 0.5 A, I
R
= 1.0 A, Irr = 0.25 A.
( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 V
DC
UPDATE : MARCH 8, 2002
Amps.
1.7
A
Amps.
75
I
FSM
RATING
2.2
I
R
5.0
20
I
F(AV)
2.0
D2
1.00 (25.4)
MIN.
0.161 (4.1)
0.154 (3.9)
0.284 (7.2)
0.268 (6.8)
0.034 (0.86)
0.028 (0.71)
1.00 (25.4)
MIN.
Dimensions in inches and ( millimeters )
RATING AND CHARACTERISTIC CURVES ( SF21 - SF29 )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
+
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.
FIG.2 - DERATING CURVE FOR OUTPUT
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
RECTIFIED CURRENT
FORWARD SURGE CURRENT
0
25
50
75
100
125
150
175
1
2
4
6
10
20
40
60 100
AMBIENT TEMPERATURE, (
C)
NUMBER OF CYCLES AT 60Hz
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
SF21 - SF24
60Hz RESISTIVE OR INDUCTIVE LOAD
2.0
1.5
1.0
0.5
2.5
100
100
10
60
0
75
0
45
30
15
0.1
10
80
0.01
0.1
1.0
1
100
140
0
20
40
60
120
PERCENT OF RATED REVERSE
VOLTAGE, (%)
PEAK FORWARD SURGE
CURRENT, AMPERES
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
FORWARD CURRENT, AMPERES
REVERSE CURRENT,
MICROAMPERES
T
J
= 25
C
T
J
= 100
C
T
J
= 25
C
Pulse Width = 300
s
2% Duty Cycle
8.3 ms SINGLE HALF SINE WAVE
Ta = 50
C
+ 0.5 A
0
- 0.25 A
- 1.0 A
Trr
1 cm
SET TIME BASE FOR 15 ns/cm
SF25 - SF27
50 Vdc
(approx)
OSCILLOSCOPE
( NOTE 1 )
1
50
10
D.U.T.
PULSE
GENERATOR
( NOTE 2 )
FORWARD VOLTAGE, VOLTS
SF28 - SF29
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