SR240M
2 Amp Schottky
Barrier Rectifier
40 Volts
MELF
SUGGESTED SOLDER
PAD LAYOUT
Features
Schottky Barrier Rectifier
Guard Ring Protection
Low Forward Voltage
Low Power Loss For High Efficiency
High Current Capability
Surface Mount Applications
DIMENSIONS
INCHES
MM
DIM MIN MAX MIN MAX NOTE
A .190 .205 4.80 5.20
B --- .022 --- .55 Nominal
C .095 .105 2.40 2.67
Maximum Ratings
Operating Temperature: -55
C to +125
C
Storage Temperature: -55
C to +150
C
Maximum Thermal Resistance: 10
C/W Junction To Lead
Maximum Thermal Resistance: 40
C/W Junction To Ambient
MCC
Part Number
Device
Marking
Maximum
Recurrent
Peak Reverse
Voltage
Maximum
RMS
Voltage
Maximum
DC
Blocking
Voltage
SR240M --- 40V 28V 40V
Electrical Characteristics @ 25
C Unless Otherwise Specified
Average Forward
Current
I
F(AV)
2.0A T
A
=75
C
Peak Forward Surge
Current
I
FSM
50A 8.3ms, half sine
Maximum
Instantaneous
Forward Voltage
V
F
.50V
I
FM
= 2.0A;
T
J
= 25
C*
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
I
R
0.5mA
10mA
T
J
= 25
C
T
J
= 100
C
Typical Junction
Capacitance
C
J
150pF
Measured at
1.0MHz, V
R
=4.0V
*Pulse test: Pulse width 300
sec, Duty cycle 2%
A
B
C
Cathode Mark
.220"
.035"
.115"
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Instantaneous Forward Current - Amperes
versus
Instantaneous Forward Voltage - Volts
Figure 1
Typical Forward Characteristics
0
.2
.4
.6
.8
1.0
1.2
1.4
.1
.2
.4
.6
.8
1.0
2.0
4.0
6.0
8.0
10
20
40
60
80
100
25
C
Volts
Amps
Figure 2
Typical Junction Capacitance
Junction Capacitance - pF
versus
Reverse Voltage - Volts
Volts
pF
0.
0.5
1.0
5.0
10
50
100
10
20
40
60
100
200
400
600
1000
SR240M
Average Forward Rectified Current - Amperes versus
Ambient Temperature -
C
Figure 3
Forward Derating Curve
0
150
25
50
75
100
0
.2
.4
.6
.8
1.0
1.2
1.4
Amps
C
125
1.6
1.8
2.0
2.2
2.4
Single Phase, Half Wave
60Hz Resistive or Inductive Load
1
100
4
0
9
18
27
8
Figure 4
Peak Forward Surge Current
Peak Forward Surge Current - Amperes versus
Number Of Cycles At 60Hz - Cycles
Amps
Cycles
2
6
10
20
60
80
40
36
45
54
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