SL42 thru SL44
Vishay Semiconductors
formerly General Semiconductor
Document Number 88742
www.vishay.com
1-Jul-02
1
Low V
F
Surface Mount
Schottky Rectifier
Reverse Voltage 20 to 40V
Forward Current 4.0A
0.280 (7.11)
0.260 (6.60)
0.012 (0.305)
0.006 (0.152)
0.008
(0.203)
Max.
0.320 (8.13)
0.305 (7.75)
0.060 (1.52)
0.030 (0.76)
0.245 (6.22)
0.220 (5.59)
0.126 (3.20)
0.114 (2.90)
0.103 (2.62)
0.079 (2.06)
Cathode Band
Dimensions in inches and (millimeters)
DO-214AB (SMC)
Maximum Ratings and Thermal Characteristics
(T
A
= 25°C unless otherwise noted)
Parameter
Symbols
SL42
SL43
SL44
Units
Device marking code
SL2
SL3
SL4
Maximum repetitive peak reverse voltage
V
RRM
20
30
40
V
Maximum RMS voltage
V
RMS
14
21
28
V
Maximum DC blocking voltage
V
DC
20
30
40
V
Maximum average forward rectified current
(2)
I
F(AV)
4.0
A
at T
L
(see fig. 1)
8.0
Peak forward surge current 8.3ms single half sine-wave
superimposed on rated load (JEDEC Method)
I
FSM
150
A
Typical thermal resistance
(2)
R
JA
50
R
JL
14
°C/W
Operating junction temperature range
T
J
55 to +125
°C
Storage temperature range
T
STG
-55 to 150
°C
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
Maximum instantaneous forward
I
F
=4.0A, T
A
=125°C
0.31
0.35
voltage at
(1)
I
F
=4.0A, T
A
=25°C
V
F
0.42
0.44
I
F
=8.0A, T
A
=125°C
0.37
0.41
V
I
F
=8.0A, T
A
=25°C
0.47
0.50
Maximum DC reverse current
(NOTE 1)
T
A
=25°C
0.5
at rated DC blocking voltage T
A
=100°C
I
R
35
mA
Notes:
(1) Pulse test: 300
µ
s pulse width, 1% duty cycle,
(2) P.C.B. mounted 0.55 x 0.55" (14 x 14mm) copper pad areas, T
L
=90
°
C
(3) Mounted on Al plate, T
L
=60
°
C
Features
· Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
· Low profile surface mount package
· Built-in strain relief
· Low power loss, high efficiency
· For use in low voltage high frequency inverters, free
wheeling, and polarity protection applications
· Guardring for overvoltage protection
· High temperature soldering guaranteed:
250°C/10 seconds at terminals
0.185 MAX.
(4.69 MAX.)
0.121 MIN.
(3.07 MIN.)
0.060 MIN.
(1.52 MIN.)
0.320 REF
Mounting Pad Layout
DO-214AB
Mechanical Data
Case: JEDEC DO-214AB molded plastic body
Terminals: solder plated, solderable per MIL-
STD-750, Method 2026
Polarity: Color band denotes cathode end
Weight: 0.007 oz. 0.25 g
SL42 thru SL44
Vishay Semiconductors
formerly General Semiconductor
www.vishay.com
Document Number 88742
2
1-Jul-02
Ratings and
Characteristic Curves
(T
A
= 25°C unless otherwise noted)
Fig. 2 Maximum Non-Repetitive
Peak Forward Surge Current
Instantaneous Forward Current (A)
Junction Capacitance (pF)
Instantaneous Reverse Current (mA)
Fig. 4 Typical Reverse
Characteristics
Percent of Rated Peak Reverse Voltage (%)
Fig. 3 Typical Instantaneous
Forward Characteristics
Fig. 5 Typical Junction Capacitance
Number of Cycles at 60H
Z
Instantaneous Forward Voltage (V)
Reverse Voltage (V)
Peak Forward Surge Current (A)
Fig. 1 Forward Current
Derating Curve
A
verage Forward Current (A)
Lead Temperature (
°
C)
0
25
50
75
100
125
0
2
4
6
8
10
on aluminum substrate
on FR4 Board
1
10
100
0
25
50
75
100
125
150
T
J
= T
J
max.
8.3ms Single Half Sine-Wave
(JEDEC Method)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
0.01
0.1
1
10
50
Pulse Width = 300
µ
s
1% Duty Cycle
SL42 and SL43
SL44
0
20
40
60
80
100
0.001
0.01
0.1
1
10
50
0.1
1
10
100
100
1,000
4,000
T
J
= 25
°
C
f = 1.0MH
Z
Vsig = 50mVp-p
T
J
= 25
°
C
T
J
= 75
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
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