BL
FEATURES
GALAXY ELECTRICAL
SK32 -
-
- SK310
REVERSE VOLTAGE: 20 - 100 V
FORWARD CURRENT: 3.0 A
SURFACE MOUNT SCHOTTKY
BARRIER RECTIFIERS
SMC
Schottky barrier rectifier
Guardring protection
Low forward voltage
Reverse energy tested
High current capability
Extremely low thermal resistance
MECHANICAL DATA
Case: SMC molded plastic body
1111
Polarity: Color band denotes cathode end
Mounting position: ANY
Weight: 0.007 ounces, 0.21 gram
inch(mm)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified
SK32 SK33 SK34 SK35
Device marking code
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current at
T
L
=90
Peak forward surge current 8.3ms single half-
sine-wave
Maximum instantaneous forward voltage
at I
FM
=3.0A (NOTE1)
Maximum DC reverse current
at rated DC blocking voltage
Maximum thermal resistance
Operating temperature range
Storage temperature range
T
J
=25
T
J
=100
SK36 SK38 SK39 SK310
UNITS
SK36 SK38 SK39 SK310
60
42
60
80
56
80
90
63
90
100
70
100
V
V
V
A
A
0.85
V
mA
o
SK32 SK33 SK34 SK35
V
RRM
V
RWS
V
DC
I
F(AV)
I
FSM
V
F
I
R
R
JL
20
14
20
30
21
30
40
28
40
50
35
50
3.0
100.0
0.50
0.70
0.5
20.0
17.0
- 55 ---- +125
- 55 ---- +150
C/W
o
o
T
J
T
STG
C
C
NOTE: 1.Pulse test: Pulse width 300us,duty cycle 1 %
www.galaxycn.com
Document Number 0281007
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
SK32
- - -
SK310
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
TJ=TJMAX
8.3ms Single Half
Sine-Wave
4
3
AMPERES
2
Resistive or
Inductive Load
1
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
SK32-SK34
SK38-SK310
1000
CAPACITANCE, pF
10
T
J
=25
℃
f=1.0MHz
Vsig=50mVp-p
100
AMPERES
1
SK35-SK36
T
J
=25
Pulse width=300
s
1% Duty Cycle
.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
www.galaxycn.com
Document Number 0281007
BL
GALAXY ELECTRICAL
2.
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