WILLAS
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS -20V- 200V
SMA PACKAGE
FEATURES
* Ideal for surface mounted applications
* Low leakage current
* Metallurgically bonded construction
* High reliability
* RoHS product for packing code suffix "G"
Halogen free product for packing code suffix "H"
.067(1.70)
.051(1.29)
SK 2A
THRU
SK 20A
Pb Free Product
SMA(DO-214AC)
.181(4.60)
.160(4.06)
.110(2.79)
.086(2.18)
MECHANICAL DATA
Case: Molded plastic, DO-214AC/SMA
Epoxy: UL 94V-O rate flame retardant
Terminals: Solder plated, solderable per
MIL-STD-750, Method 2026.
Mounting position: Any
Weight: Approximated 0.06 gram.
.059(1.50)
.035(0.89)
.008 Max.
(.203)
.208(5.28)
.188(4.80)
.091(2.31)
.067(1.70)
.012(.305)
.006(.152)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25℃ ambient temperature unless otherwise specified.
Single phase half wave, 60Hz, resistive of inductive load.
For capacitive load, derate current by 20%
R
A
T IN G S
Marking Code
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
SYMBOL
SK32A
SK32A
SK33A
SK33A
SK34A
SK34A
SK35A
SK35A
SK36A
SK36A
SK38A
SK38A
SK310A
SK310A
SK315A
SK315A
SK320A
SK320A
UNIT
Volts
Volts
Volts
Amps
Amps
℃/W
V
RRM
V
RMS
V
DC
I
O
I
FSM
R
ΘJA
/
R
ΘJC
C
J
T
J
TSTG
SYMBOL
20
14
20
30
21
30
40
28
40
50
35
50
60
42
60
3.0
80
70/30
80
56
80
100
70
100
150
105
150
200
140
200
Typical Thermal Resistance (Note 2)
Typical Junction Capacitance (Note 1)
Operating Temperature Range
Storage Temperature Range
CHARACTERISTICS
Maximum Forward Voltage at
3.0A
DC
Maximum Average Reverse Current at
@T
C=25℃
Rated DC Blocking Voltage
NOTES:
180
-55 to +125
150
-55 to +150
110
100
-55 to +150
80
PF
℃
℃
SK32A
SK33A
SK34A
SK35A
SK36A
SK38A
SK310A
SK315A
SK320A
UNIT
Volts
mAmps
V
F
@T
C=100℃
0.55
0.5
10
0.70
0.85
I
R
0.2
5.0
0.87
0.90
1- Measured at 1 MHZ and applied reverse voltage of 4.0 VDC.
2- Thermal Resistance From Junction to Ambient
2011-0
WILLAS ELECTRONIC CORP.
WILLAS
.0A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS -20V- 200V
SMA PACKAGE
SK 2A
THRU
SK 20A
Pb Free Product
RATING AND CHARACTERISTIC CURVES
FIG. 1-TYPICAL FORWARD CURRENT DERATING CURVE
5
AVERAGE FORWARD CURRENT,(A)
FIG. 2-TYPICAL FORWARD CHARACTERISTICS
100.00
INSTANTANEOUS FORWARD CURRENT (A)
S
S
S
S
S
32A~S 34A
35 ~S 36A
38A~S 310A
315A
320A
4
10.00
3
SK32A
2
SK38A
1
~SK320A
~SK36A
1.00
0.10
TJ=25℃ PULSE
WIDTH 300us 2%
DUTY CYCLE
0
0
20
40
60
80
100
120
140
160
180
200
AMBIENT TEMPERATURE(℃)
0.01
0.2
0.4
0.6
0.8
FORWARD VOLTAGE (V)
1.0
FIG. 3-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
100
PEAK FORWARD SURGE CURRENT (A)
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
100
REVERSE LEAKAGE CURRENT (mA)
10
1
0.1
0.01
0.001
25℃
100℃
80
TJ=25℃ 8.3ms Single
Half Sine Wave
JEDEC method
60
40
20
0
1
10
NUMBER OF CYCLES AT 60Hz
0.0001
100
20
40
60
80
100
PERCENTAGE RATED PEAK REVERSE VOLTAGE (%)
FIG. 5-TYPICAL JUNCTION CAPACITANCE
500
SK32A~SK34A
SK35A~SK36A
400
JUNCTION CAPACITANCE (pF)
SK38A~SK310A
SK315A
300
SK320A
200
100
0
0
1
10
100
REVERSE VOLTAGE (V)
2011-0
WILLAS ELECTRONIC CORP.
嵌入式系统
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