SM5820-SM5822
Surface Mount
Schottky Barrier
Rectifiers
VOLTAGE RANGE: 20 --- 40 V
CURRENT: 3.0 A
Features
Metal-Semiconductor junction with guard ring
Epitaxial construction
High surge capability
For use in low voltage,high frequency inverters free
wheeling,and polarity protection applications
Low forward voltage drop,low switching losses
SMC(DO-214AB)
7.5± 0.25
3.0± 0.15
xxxx
8.3± 0.2
Mechanical Data
Case:JEDEC
SMC,molded
plastic
Polarity: Color band denotes cathode
Weight: 0.007 ounces,0.21 grams
Mounting position: Any
2.4± 0.2
The plastic material carries U/L recognition 94V-0
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%.
0.203MAX
1.5± 0.25
0.25± 0.06
5.8± 0.3
SM5820
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
@T
L
=90
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
@T
J
=125
@ 9.4A
@T
A
=25
@T
A
=100
(Note2)
(Note3)
SM5821
30
21
30
3.0
SM5822
40
28
40
UNITS
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
20
14
20
I
FSM
0.475
0.85
80.0
0.50
0.90
2.0
20.0
250
20
- 55 ---- + 125
- 55 ---- + 150
0.525
0.95
A
Maximum instantaneous forw ard voltage @ 3.0A
(Note 1)
Maximum reverse current
at rated DC blocking voltage
Typical junction capacitance
Typical thermal resistance
V
F
I
R
C
J
R
θJA
T
J
T
STG
V
mA
pF
/W
Operating junction temperature range
Storage temperature range
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
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SM5820-SM5822
Surface Mount
Schottky Barrier
Rectifiers
Ratings AND Charactieristic Curves
FIG.1 -- FORWARD DERATING CURVE
AVERAGE FORWARD RECTIFIED CURRENT
PEAK FORWARD SURGE CURRENT
AMPERES
FIG.2 -- PEAK FORWARD SURGE CURRENT
80
70
60
50
40
30
20
10
4
3
T
J
=T
J
MAX
8.3ms Single Half
Sine-Wave
AMPERES
2
1
Resistive or
Inductive Load
0.375"(9.5mm)Lead
Length
0
0
25
50
75
100
125
150
175
1
10
100
LEAD
TEMPERATURE,
NUMBER OF CYCLES AT 60Hz
FIG.3 -- TYPICAL INSTANTANEOUS FORWARD
XXXXXXXXX----CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
20
SM
5820
SM
5822
1000
CAPACITANCE, pF
10
T
J
=25
℃
f=1.0MHz
Vsig=50mVp-p
100
AMPERES
1
SM
5821
T
J
= 2 5
P u ls e w id t h = 3 0 0
1 % D u t y C y c le
s
.1
.1
.3
.5
.7
.9
1 .1
1 .3
1 .5
1 .7
1 .9
2 .1
10
0.1
1
10
100
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
REVERSE VOLTAGE,VOLTS
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