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SK32AS THRU SK320AS
3A Surface Mount Schottky Barrier Rectifiers
Features
Low profile surface mounted application in order to
optimize board space.
Low power loss, high efficiency.
High current capability, low forward voltage drop.
Ultra high-speed switching.
Silicon epitaxial planar chip, metal silicon junction.
Suffix "G" indicates Halogen-free part, ex.SK32ASG.
Lead-free parts meet environmental standards of
MIL-STD-19500 /228
Outline
SMAS(DO-214AC)
0.065(1.65)
0.053(1.35)
0.205(5.2)
0.193(4.9)
Marking code
0.114(2.9)
0.098(2.5)
Mechanical data
Epoxy:UL94-V0 rated flame retardant
Case : Molded plastic, DO-214AC / SMAS
Terminals : Solder plated, solderable per
MIL-STD-750, Method 2026
Polarity : Indicated by cathode band
Weight : Approximated 0.08 gram
0.039(1.0)
0.028(0.7)
0.075(1.9)
0.061(1.55)
0.039 (1.0)
0.028 (0.7)
Dimensions in inches and (millimeters)
Maximum ratings and electrical characteristics
Rating at 25OC ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Parameter
Forward rectified current
Forward surge current
Reverse current
Diode junction capacitance
Thermal resistance
Storage temperature
Conditions
See Fig.1
8.3ms single half sine-wave superimposed on
rate load (JEDEC method)
VR = VRRM TA = 25OC
VR = VRRM TA = 100OC
f=1MHz and applied 4V DC reverse voltage
Junction to ambient
Symbol
IO
IFSM
IR
CJ
RθJA
TSTG
MIN.
-55
TYP.
250
55
MAX.
3.0
70
0.5
20
+150
UNIT
A
A
mA
pF
OC/W
OC
Symbol
SK32AS
SK34AS
SK345AS
SK36AS
SK310AS
SK315AS
SK320AS
Max.
Marking code
repetitive peak
reverse voltage
VRRM (V)
SK32
20
SK34
40
SK345
45
SK36
60
SK310
100
SK315
150
SK320
200
Max.
RMS voltage
VRMS (V)
14
28
31.5
42
70
105
140
Max. DC
blocking voltage
VR (V)
20
40
45
60
100
150
200
1
Max. forward voltage
@3A, TA = 25OC
VF (V)
0.45
0.50
0.70
0.85
0.87
0.90
Operating Junction
temperature
TJ (OC)
-55 ~ +150
-55 ~ +175
Document ID : DS-12K0U
Revised Date : 2017/03/15
Revision : C6

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SK32AS THRU SK320AS
3A Surface Mount Schottky Barrier Rectifiers
Rating and characteristic curves
FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE
3.0
2.5
2.0
1.5
1.0
0.5
0
0 20 40 60 80 100 120 140 160 180 200
AMBIENT TEMPERATURE,( C)
FIG.3-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
100
80
60
TJ=25OC
8.3ms Single Half
40 Sine Wave
JEDEC method
20
0
1
5 10
50 100
NUMBER OF CYCLES AT 60Hz
700
600
500
400
300
200
100
0
.01
FIG.4-TYPICAL JUNCTION CAPACITANCE
.05 .1
.5 1
5 10
REVERSE VOLTAGE,(V)
50 100
2
FIG.2-TYPICAL FORWARD
CHARACTERISTICS
50
10 SK310AS
3.0
1.0 SK315AS~SK320AS
TJ=25OC
Pulse Width 300us
1% Duty Cycle
0.1
.01
.1
.3 .5 .7 .9 1.1 1.3
FORWARD VOLTAGE,(V)
1.5
FIG.5 - TYPICAL REVERSE
CHARACTERISTICS
100
10
1.0
TJ=125OC
.1
TJ=25OC
.01
0
20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
Document ID : DS-12K0U
Revised Date : 2017/03/15
Revision : C6

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SK32AS THRU SK320AS
3A Surface Mount Schottky Barrier Rectifiers
SMAS foot print
C
A
B
ABC
0.063 (1.60) 0.059 (1.50) 0.110 (2.80)
Dimensions in inches and (millimeters)
CITC reserves the right to make changes to this document and its products and specifications at any
time without notice.
Customers should obtain and confirm the latest product information and specifications before final
design, purchase or use.
CITC makes no warranty, representation or guarantee regarding the suitability of its products for any
particular purpose, nor does CITC assume any liability for application assistance or customer product
design.
CITC does not warrant or accept any liability with products which are purchased or used for any
unintended or unauthorized application.
No license is granted by implication or otherwise under any intellectual property rights of CITC.
CITC products are not authorized for use as critical components in life support devices or systems
without express written approval of CITC.
http://www.citcorp.com.tw/
Tel:886-3-5600628
Fax:886-3-5600636
Add:Rm. 3, 2F., No.32, Taiyuan St., Zhubei City, Hsinchu County 302, Taiwan (R.O.C.)
3
Document ID : DS-12K0U
Revised Date : 2017/03/15
Revision : C6