SK37B thru SK3BB
Surface Mount Schottky Rectifier
Reverse Voltage
70-100V
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
•
AEC-Q101 qualified
Package: DO-214AA (SMB)
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
SK37B
SK37BE
70
42
70
SK38B
SK38BE
80
56
80
3.0
100
-55 to +150
SK39B
SK39BE
90
63
90
SK3BB
SK3BBE
100
70
100
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
Value
0.79
30
2000
100
Unit
V
μA
pF
Test Conditions
I
F
=3A
T
A
=25°C
T
A
=125°C
4.0 V, 1 MHz
Typical Junction Capacitance
Thermal Characteristics
Parameter
Typical Thermal Resistance
(1)
Symbol
R
θJA
R
θJC
R
θJl
Value
70
28
15
Unit
°C/W
Note1: Thermal resistance from junction to lead, mounted on PCB with 8.0×8.0mm copper pads.
1/4
SK37B thru SK3BB
Surface Mount Schottky Rectifier
Reverse Voltage
70-100V
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
Figure 2. Maximum Non-Repetitive Peak Forward
Surge Current
Instantaneous
Forward Current (A)
10
1
0.1
25°C
50°C
75°C
100°C
125°C
150°C
0.01
0
0.2
0.4
0.6
0.8
1.0
1.2
Instantaneous Forward Voltage (V)
Figure 3. Typical Instantaneous Forward Characteristics
Instantaneous Reverse Current
(μA)
10000.00
1000.00
100.00
10.00
1.00
0.10
0.01
10
20
30
40
50
60
70
80
90
Percent of Rated Peak Reverse Voltage (%)
100
110
25°C
50°C
75°C
100°C
125°C
150°C
Figure 4. Typical Reverse Characteristics
2/4
SK37B thru SK3BB
Surface Mount Schottky Rectifier
Reverse Voltage
70-100V
Forward Current 3A
Package Outline Dimensions
in inches (millimeters)
DO-214AA (SMB)
Packing Information
3000 pcs/Reel, 18 Reels/Box, 12mm Tape, 13" Reel
Tape & Reel Specification
Symbol
SMB(mm)
W
E
F
D0
D1
P0
P1
P2
A0
B0
12±0.2
1.75±0.1
5.5±0.05
1.5±0.1
1.50 +0.1/-0
4.0±0.1
8.0±0.1
2.0±0.05
3.95±0.1
5.74±0.1
3/4
SK37B thru SK3BB
Surface Mount Schottky Rectifier
Reverse Voltage
70-100V
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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4/4
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