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SX5817-SX5819
Surface Mount Schottky Barrier Rectifiers
VOLTAGE RANGE: 20 --- 40 V
CURRENT: 1.0 A
Features
Metal-Semiconductor junction with guard ring
Epitaxial construction
Low forward voltage drop,low switching losses
High surge capability
For use in low voltage,high frequency inverters free
xxxx wheeling,and polarity protection applications
The plastic material carries U/L recognition 94V-0
Mechanical Data
Case:JEDEC SOD-123FL,molded plastic
Polarity: Color band denotes cathode
Weight: 0.0008 ounces,0.22 grams
Mounting position: Any
SOD-123FL
Cathode Band
Top View
2.8 0.1
0.6 0.25
3.7 0.2
Dimensions in millimeters
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
SX5817
Device marking code
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
9.5mm lead length,
@TA=75
Peak forw ard surge current
VRRM
VRMS
VDC
IF(AV)
8.3ms single half-sine-w ave
IFSM
superimposed on rated load @TJ=70
Maximum instantaneous forw ard voltage @ 1.0A
z (Note 1)
@ 3.0A
VF
S2
20
14
20
0.45
0.75
Maximum reverse current
at rated DC blocking voltage
@TA=25
@TA=100
IR
Typical junction capacitance (Note2)
CJ
Typical thermal resistance (Note3)
RθJA
Operating junction temperature range
TJ
Storage temperature range
TSTG
NOTE: 1. Pulse test : 300 s pulse width,1% duty cy cle.
2. Measured at 1.0MHZ and applied rev erse v oltage of 4.0V DC.
3.Thermal resistance junction to ambient
SX5818
S3
30
21
30
1.0
25.0
0.55
0.875
1.0
10.0
110
50
- 55 ---- + 125
- 55 ---- + 150
SX5819
S4
40
28
40
0.60
0.90
http://www.luguang.cn
mail:lge@luguang.cn
UNITS
V
V
V
A
A
V
mA
pF

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SX5817-SX5819
Surface Mount Schottky Barrier Rectifiers
Ratings AND Charactieristic Curves
FIG.1 -- FORWARD DERATING CURVE
FIG.2 -- PEAK FORWARD SURGE CURRENT
1.0
0.75
0.5 Resistive or
Inductive Load
0.375"(9.5mm)Lead
0.25 Length
0
0
25
50 75 100 125 150
LEAD TEMPERATURE,
FIG.3 -- TYPICAL INSTANTANEOUS FORWARD
X -CHARACTERISTICS
20
10 SX5817
SX5819
1 SX5818
.1
.1 .3
.5 .7
TJ=25
Pulse w idth=300
1% D uty C ycle
s
.9 1.1 1.3 1.5 1.7 1.9 2.1
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
30
25
20
25
10
5
0
1
TJ=TJMAX
8.3ms Single Half
Sine-Wave
10 100
NUMBER OF CYCLES AT 60Hz
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
400
TJ=25
f=1.0MHz
Vsig=50mVp-p
100
10
0.1
1
10 100
REVERSE VOLTAGE,VOLTS
http://www.luguang.cn
mail:lge@luguang.cn