LRC SF31, SF33, SF32, SF34, SF36 Datasheet
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SUPER FAST DIODES
LESHAN RADIO COMP ANY , LTD.
SF31 – SF36
TYPE
SF31
SF32
SF33
SF34
SF35
SF36
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
3.0
A
AV
ºC
55
Forward Peak
Surge Current @ 8.3ms
Superimposed
125
1.0(25.4)
MIN
.052(1.3)
DIA
.048(1.2)
Maximum
I
(Surge)
FM
A
PK
.375(9.5)
.335(8.5)
DO – 201AD
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
3.0
0.95
0.95
1.25
1.25
1.0(25.4)
MIN
.220(5.6)
DIA
.197(5.0)
Maximum
Reverse
Recovery
Time
T rr
ns
Package
Dimensions
DO–201AD
9A–1/2
LESHAN RADIO COMP ANY , LTD.
SF31-SF36
RA TING 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.
Source Impedance=50 ohms.
(NOTE 1)
FIG. 3 – TYPICAL REVERSE
CHARACTERISTICS
1000
100
10
1.0
0.1
INSTANTANEOUS REVERSE CURRENT (µA)
.01
20 40 60 80 100 120
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
TJ = 150ºC
TJ = 100ºC
TJ = 25ºC
(-)
PULSE
GENERATOR
(NOTE 2)
(+)
+0.5A
-0.25A
-1.0A
Trr
0
1cm
BASE FOR 10 ns/cm
INSTANTANEOUS FORWARD CURRENT, (A)
FIG. 2 – TYPICAL FORWARD
CURRENT DERATING CURVE
6.0
5.0
4.0
3.0
2.0
1.0
0
AVERAGE FORWARD CURRENT,(A)
SET TIME
0 50 100 150 157
AMBIENT TEMPER ATURE, (ºC)
FIG. 4 – TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
10.0
TJ=25ºC
1.0
.1
.01
.001
SF31 ~ SF34
.2 .4 .6 .8 1.0 1.2 1.4
INSTANTANEOUS FORWARD VOLTAGE,(V)
SF35 ~ SF36
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
Pulse Width=300µs
1% Duty Cycle
FIG. 5 – MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
175
150
125
100
75
50
25
PEAK FORWARD SURGE CURRENT,(A)
0
1 2 5 10 20 50 100
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine-Wave
(JEDEC Method)
FIG. 6 – TYPICAL JUNCTION CAPACITANCE
200
100
60
40
20
10
6
4
JUNCTION CAPACITANCE,(pF)
2
1
.1 .2 .4 1.0 2 4 10 20 40 100
TJ =25ºC
REVERSE VOLTAGE,(V)
SF31 ~ SF34
SF35 ~ SF36
9A–2/2
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