SK32A thru SK36A
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Features
• Low forward voltage drop
• High junction temperature
• Moisture sensitivity: level 1, per J-STD-020
• Plastic package has underwriters laboratory flammability
classification 94V-0
•Add suffix 'E' for halogen-free
• Halogen-free according to IEC 61249-2-21 definition Package: DO-214AC (SMA)
Applications
For use in low voltage, high freqency inverters, free wheeling and polarity
protection applications.
VRRM V
VRMS V
VDC V
IF(AV) A
IFSM A
TJ, TSTG °C
Maximum Instantaneous
Forward Voltage IF=3A VFV
TA=25°C
TA=125°C
Typical Junction Capacitance 4.0 V, 1 MHz CJpF
RθJA
RθJC
RθJl
Note1: Thermal resistance from junction to lead, mounted on PCB with 8.0×8.0mm copper pads.
Unit
Typical Thermal Resistance(1)
77
°C/W
40
18
mA
10
250
Thermal Characteristics
Parameter Symbol
0.55 0.70
Maximum DC Reverse Current at
Rated DC Blocking Voltage IR
0.20 0.15
Electrical Characteristics (TA = 25°C unless otherwise noted)
Parameter Test Conditions Symbol Unit
Maximum Average Forward Rectified Current 3.0
Peak Forward Surge Current (8.3 ms single half
sine-wave superimposed on rated load) 50
Operating Junction and Storage Temperature
Range -55 to +150
Maximum DC Blocking Voltage 20 30 40 50 60
Maximum RMS Voltage 14 21 28 35 42
Maximum Repetitive Peak Reverse Voltage 20 30 40 50 60
Maximum Ratings (TA = 25°C unless otherwise noted)
Parameter Symbol SK32A
SK32AESK33A
SK33AESK34A
SK34AESK35A
SK35AESK36A
SK36AEUnit
1/5
• AEC-Q101 qualified
SK32A
SK32AESK33A
SK33AESK34A
SK34AESK35A
SK35AESK36A
SK36AE
Value
SK32A thru SK36A
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Ratings and Characteristics Curves
(TA = 25°C unless otherwise noted)
Figure 1. Forward Current Derating Curve Figure 2. Maximum Non-Repetitive Peak Forward
Surge Current
Figure 4. Typical Reverse Characteristics
(SK32A thru SK34A)
Figure 3. Typical Instantaneous Forward Characteristics
(SK32A thru SK34A)
0
0.5
1
1.5
2
2.5
3
025 50 75 100 125 150
Output Full Wave Rectified
Current (A)
Lead temperature (°C)
0
20
40
60
80
100
110 100
Peak Forward Surge Current
(A)
Number of Cycles at 60Hz
1.00
10.00
100.00
1000.00
10000.00
100000.00
10 20 30 40 50 60 70 80 90 100 110
Instantaneous Reverse Current
(μA)
Percent of Rated Peak Reverse Voltage (%)
0.01
0.1
1
10
100
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Instantaneous Forward
Current (A)
Instantaneous Forward Voltage (V)
25°C
50°C
75°C
100°C
125°C
150°C
2/5
25°C
50°C
75°C
100°C
125°C
150°C
SK32A thru SK36A
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Figure 6. Typical Reverse Characteristics
(SK35A thru SK36A)
Figure 5. Typical Instantaneous Forward Characteristics
(SK35A thru SK36A)
0.01
0.1
1
10
100
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
Instantaneous Forward Current
(A)
Instantaneous Forward Voltage (V)
0.10
1.00
10.00
100.00
1000.00
10000.00
100000.00
10 20 30 40 50 60 70 80 90 100 110
Instantaneous Reverse Current
(μA)
Percent of Rated Peak Reverse Voltage (%)
3/5
25°C
50°C
75°C
100°C
125°C
150°C
25°C
50°C
75°C
100°C
125°C
150°C
SK32A thru SK36A
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Package Outline Dimensions DO-214AC (SMA)
in inches (millimeters)
Packing Information
7500 pcs/Reel, 18 Reels/Box, 12mm Tape, 13"
Reel Tape & Reel Specification
4/5
W
E
F
D0
D1
P0
P1
P2
A0
B0
1.50 +0.1/-0
4.0±0.1
4.0±0.1
2.0±0.05
2.65±0.1
5.25±0.1
Symbol SMA(mm)
12±0.2
1.75±0.1
5.5±0.05
1.5±0.1
SK32A thru SK36A
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Soldering Parameters
Peak Temperature 260+0/-5°C
Dipping Time 10 seconds
Soldering 1 time
Do not exceed 260°C 260°C
Wave Soldering
Ramp-down Rate 6°C/second max 6°C/second max
Time 25°C to peak Temperature (TP) 6 minutes max 8 minutes max
Peak Temperature (TP) 240+0/-5 °C 240+0/-5°C
Time within 5°C of actual peak Temperature (tp) 10 –30 seconds 20 – 40 seconds
TS(max) to TL - Ramp-up Rate 3°C/second max 3°C/second max
Reflow - Temperature (TL) (Liquidus) 183°C 217°C
- Time (min to max) (ts) 60 – 150 seconds 60 – 150 seconds
- Time (min to max) (ts) 60 – 120 secs 60 – 180 secs
Average ramp up rate (Liquidus) Temp (TL) to peak 3°C/second max 3°C/second max
Reflow Soldering Sn-Pb Eutectic Assembly Pb-Free Assembly
Pre Heat
- Temperature Min (Ts min) 100°C 150°C
- Temperature Max (Ts max) 150°C 200°C
5/5Doc.USSK32A-SK36AxSD2.0
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