SK32 thru SK36
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-214AB (SMC)
Applications
For use in low voltage, high freqency inverters, free wheeling and polarity
protection applications.
Maximum Ratings
Parameter
(T
A
= 25°C unless otherwise noted)
Symbol
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
T
J
, T
STG
SK32
SK32E
20
14
20
SK33
SK33E
30
21
30
SK34
SK34E
40
28
40
3.0
100
-55 to +150
SK35
SK35E
50
35
50
SK36
SK36E
60
42
60
Unit
V
V
V
A
A
°
C
Maximum Repetitive 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)
Operating Junction and Storage Temperature
Range
Electrical Characteristics
Parameter
Maximum Instantaneous
Forward Voltage
Maximum DC Reverse Current at
Rated DC Blocking Voltage
(T
A
= 25°C unless otherwise noted)
Symbol
V
F
I
R
C
J
SK32
SK32E
SK33
SK33E
0.55
0.20
10
250
SK34
SK34E
SK35
SK35E
SK36
SK36E
Unit
V
mA
pF
Test Conditions
I
F
=3A
T
A
=25°C
T
A
=125°C
4.0 V, 1 MHz
0.70
0.15
Typical Junction Capacitance
Thermal Characteristics
Parameter
Typical Thermal Resistance
(1)
Symbol
R
θJA
R
θJC
R
θJl
SK32
SK32E
SK33
SK33E
SK34
SK34E
SK35
SK35E
SK36
SK36E
Unit
°C/W
65
25
15
Note1: Thermal resistance from junction to lead, mounted on PCB with 8.0×8.0mm copper pads.
1/5
SK32 thru SK36
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Ratings and Characteristics Curves
(T
A
= 25°C unless otherwise noted)
3
Output Full Wave Rectified
Current (A)
2.5
2
1.5
1
0.5
0
0
25
50
75
100 125 150
100
Peak Forward Surge Current
(A)
80
60
40
20
0
1
Lead temperature (°C)
10
Number of Cycles at 60Hz
100
Figure 1. Forward Current Derating Curve
100
Instantaneous Forward
Current (A)
10
1
Figure 2. Maximum Non-Repetitive Peak Forward
Surge Current
0.1
0.01
25°C
50°C
75°C
100°C
125°C
150°C
0.0
0.2
0.4
0.6
0.8
1.0
Instantaneous Forward Voltage (V)
1.2
1.4
Figure 3. Typical Instantaneous Forward Characteristics
(SK32 thru SK34)
100000.00
Instantaneous Reverse Current
(μA)
10000.00
1000.00
100.00
25°C
50°C
75°C
100°C
125°C
150°C
10
20
30
40
50
60
70
80
90
Percent of Rated Peak Reverse Voltage (%)
100
110
10.00
1.00
Figure 4. Typical Reverse Characteristics
(SK32 thru SK34)
2/5
SK32 thru SK36
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
100
Instantaneous Forward Current
(A)
10
1
25°C
50°C
75°C
100°C
125°C
150°C
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Instantaneous Forward Voltage (V)
1.4
1.6
0.1
0.01
Figure 5. Typical Instantaneous Forward Characteristics
(SK35 thru SK36)
100000.00
Instantaneous Reverse Current
(μA)
10000.00
1000.00
100.00
10.00
1.00
25°C
50°C
75°C
100°C
125°C
150°C
10
20
30
40
50
60
70
80
90
Percent of Rated Peak Reverse Voltage (%)
100
110
0.10
Figure 6. Typical Reverse Characteristics
(SK35 thru SK36)
3/5
SK32 thru SK36
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Package Outline Dimensions
in inches (millimeters)
DO-214AB (SMC)
Packing Information
3000 pcs/Reel, 14 Reels/Box; 16mm Tape, 13" Reel
Tape & Reel Specification
Symbol
W
E
F
D0
D1
P0
P1
P2
A0
B0
SMC(mm)
16±0.2
1.75±0.1
7.5±0.05
1.5±0.1
1.50 +0.1/-0
4.0±0.1
8.0±0.1
2.0±0.05
6.22±0.1
8.31±0.1
4/5
SK32 thru SK36
Surface Mount Schottky Rectifier
Reverse Voltage 20-60V Forward Current 3A
Soldering Parameters
Reflow Soldering
- Temperature Min (Ts min)
Pre Heat
- Temperature Max (Ts max)
- Time (min to max) (ts)
Average ramp up rate (Liquidus) Temp (TL) to peak
TS(max) to TL - Ramp-up Rate
Reflow
Peak Temperature (TP)
Time within 5°C of actual peak Temperature (tp)
Ramp-down Rate
Time 25°C to peak Temperature (TP)
Do not exceed
Wave Soldering
Peak Temperature
Dipping Time
Soldering
- Temperature (TL) (Liquidus)
- Time (min to max) (ts)
Sn-Pb Eutectic Assembly
100°C
150°C
60 – 120 secs
3°C/second max
3°C/second max
183°C
60 – 150 seconds
240+0/-5 °C
10 –30 seconds
6°C/second max
6 minutes
max
260°C
Pb-Free Assembly
150°C
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
240+0/-5°C
20 – 40 seconds
6°C/second max
8 minutes
max
260°C
260+0/-5°C
10 seconds
1 time
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