1N4448W
500mW 100 Volts
Switching Diode
SOD123
Features
• Fast switching speed
• Surface Mount Package Ideally Suited for Automatic Insertion
• For general purpose switching applications
• High conductance
Maximum Ratings
• Case: SOD-123, Molded Plastic
• Terminals: Solderable per MIL-STD-202, Method 208
• Polarity: Indicated by Cathode Band
• Weight: 0.01 grams (approx.)
Maximum Ratings @ 25°C Unless Otherwise Specified
Reverse Voltage VR 75 V
Peak Reverse Voltage VRM 100 V
Average Rectified Current IO 150 mA
Peak Forward Surge Current IFSM 500 mA
Power Dissipation PD 500 mW
Thermal Resistance* R 35 °C/W
Operation/Storage Temp.
Range Tj, TSTG -55 to +150 °C
Electrical Characteristics @ 25°C Unless Otherwise Specified
Maximum Instantaneous
Forward Voltage VF 1.0V IFM = 100mA;
TJ = 25°C*
Typical Junction
Capacitance CJ 4pF Measured at
1.0MHz, VR=4.0V
Reverse Recovery Time Trr 4nS IF=10mA
VR = 6V
RL=100Ω
* Valid provided that terminals are kept at ambient temperature
DIMENSIONS
INCHES MM DIM MIN MAX MIN MAX NOTE
A .140 .152 3.55 3.85
B .100 .112 2.55 2.85
C .055 .071 1.40 1.80
D ----- .053 ----- 1.35
E .012 .031 0.30 .78
G .006 ----- 0.15 -----
H ----- .01 ----- .25
J ----- .006 ----- .15
A
B
E
C
J
D
H
G
0.036”
0.093
0.048”
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PAD LAYOUT
omponents
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MCC
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
IR 25nA
50µA
VR=20Volts
TJ = 25°C
TJ = 150°C
5uA VR=75Volts
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Revision: 3 2002/12/31
Admissable Power Dissipation - MilliWatts versus
Ambient Temperature - °C
Figure 2
Forward Derating Curve
017550 75 100 125
0
100
200
300
Single Phase, Half Wave
60Hz Resistive or Inductive Load
MilliWatts
°C
150
400
500
600
Junction Capacitance - pF versus
Reverse Voltage - Volts
Instantaneous Forward Current - Amperes versus
Instantaneous Forward Voltage - Volts
Figure 1
Typical Forward Characteristics
40
60
200
100
MilliAmps
.4 .6 .8 1.0 1.2 1.4
.1
.2
.4
.6
1
2
4
6
10
20
25°C
Volts
Figure 3
Junction Capacitance
.1 .2 1.4 2 10 20 404 100 200
.1
.2
.6
1
2
10
pF
Volts
6
4
.4
400 1000
TJ=25°C
MCC
1N4448W
www.mccsemi.com
Revision: 3 2002/12/31
1N4448W
1 100
4
0
100
200
300
8
Figure 5
Peak Forward Surge Current
Peak Forward Surge Current - Amperes versus
Number Of Cycles At 60Hz - Cycles
MilliAmps
Cycles
2
6
10 20 60 80
40
400
500
600
Figure 4
Typical Reverse Characteristics
Instantaneous Reverse Leakage Current - NanoAmperes versus
Junction Temperature - °C
TJ
40
60
200
100
NanoAmps
20 120
40 60 80 100
.1
.2
.4
.6
1
2
4
6
10
20
TA=25°C
400
600
1000
140
TA=100°C
MCC
www.mccsemi.com
Revision: 3 2002/12/31
