LRC SF24, SF22, SF23, SF21, SF26 Datasheet
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SUPER FAST DIODES
LESHAN RADIO COMP ANY , LTD.
SF21 – SF26
TYPE
SF21
SF22
SF23
SF24
SF25
SF26
Trr I F=0.5A, I R=1.0A, I RR=0.25A
Trr Test Conditions: I F=0.5A, I R=1.0A, I RR=0.25A
Maximum
Peak
Reverse
Voltage
PRV
V
PK
50
100
150
200
300
400
Maximum Average
Rectified Current
@ Half-Wave
Resistive Load 60Hz
I O@T
L
2.0
A
AV
ºC
55
Surge Current @ 8.3ms
75
1.0(25.4)
MIN
.034(0.9)
DIA
.028(0.7)
Maximum
Forward Peak
Superimposed
I
(Surge)
FM
A
PK
.300(7.6)
.230(5.8)
DO – 15
.140(3.6)
.104(2.6)
Maximum
Reverse
Current @ PRV
@ T
=25ºC
A
I
R
µAdc
Maximum
Forward
Voltage
@ T
A
I
FM
A
PK
=25ºC
V
FM
V
PK
0.95
0.95
5.0 35
2.0
0.95
0.95
1.25
1.25
1.0(25.4)
MIN
DIA
Maximum
Reverse
Recovery
Time
T rr
ns
Package
Dimensions
DO - 15
8A–1/2
LESHAN RADIO COMP ANY , LTD.
SF21-SF26
RATING AND CHARACTERISTIC CURVES OF SUPER FAST DIODES
FIG.1-TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
50 Ω 10 Ω
NONINDUCTIVE NONINDUCTIVE
D.U.T.
(+)
25Vdc
(APPROX)
(-)
1Ω
OSCILLOSCOPE
NON.
INDUCTIVE
NOTES:1.Rise Time=7ns max.
Input Impedance=1megohm.22pF.
2.Rise Time=10ns max.
(NOTE 1)
Source Impedance=50 ohms.
FIG. 3 - TYPICAL REVERSE
CHARACTERISTICS
100
10
1.0
TJ =150ºC
TJ =100ºC
(-)
PULSE
GENERATOR
(NOTE 2)
(+)
+0.5A
-0.25A
-1.0A
Trr
0
1cm
BASE FOR 10 ns/cm
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
3.0
2.0
1.0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
SET TIME
AVERAGE FORWARD CURRENT,(A)
25 50 75 100 125 150 175
AMBIENT TEMPER ATURE, (ºC)
FIG. 4 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
10
1.0
.1
TJ =25ºC
0.1
INSTANTANEOUS REVERSE CURRENT (µA)
.01
20 40 60 80 100 120
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
TJ =25ºC
FIG. 5 - MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
90
75
60
50
45
30
15
PEAK FORWARD SURGE CURRENT,(A)
1 2 5 10 20 50 100
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine-Wave
(JEDEC Method)
.01
SF21 ~ SF24
INSTANTANEOUS FORWARD CURRENT, (A)
.001
.2 .4 .6 .8 1.0 1.2 1.4
INSTANTANEOUS FORWARD VOLTAGE,(V)
SF25 ~ SF26
Pulse Width=300µs
1% Duty Cycle
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
200
100
60
40
20
10
6
4
2
JUNCTION CAPACITANCE,(pF)
1
.1 .2 .4 1.0 2 4 10 20 40 100
TJ=25¡æ
REVERSE VOLTAGE,(V)
SF21¡«SF24
SF25¡«SF26
8A–2/2
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