1N4148 / 1N4448
Document number: DS12019 Rev. 7 - 2
1 of 2
www.diodes.com
March 2008
© Diodes Incorporated
1N4148 / 1N4448
FAST SWITCHING DIODE
Features
• Fast Switching Speed
• General Purpose Rectification
• Silicon Epitaxial Planar Construction
• Lead Free Finish, RoHS Compliant (Note 2)
Mechanical Data
• Case: DO-35
• Case Material: Glass
• Moisture Sensitivity: Level 1 per J-STD-020D
• Leads: Solderable per MIL-STD-202, Method 208
• Terminals: Finish ⎯ Sn96.5Ag3.5. Solderable per MIL-STD-
202, Method 208
• Polarity: Cathode Band
• Marking: Type Number
• Ordering Information: See Page 2
• Weight: 0.13 grams (approximate)
Maximum Ratings @T
A
= 25°C unless otherwise specified
Characteristic Symbol 1N4148 1N4448 Unit
Non-Repetitive Peak Reverse Voltage
V
RM
100 V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
75 V
RMS Reverse Voltage
V
R(RMS)
53 V
Forward Continuous Current (Note 1)
I
FM
300 500 mA
Average Rectified Output Current (Note 1)
I
O
150 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0s
@ t = 1.0μs
I
FSM
1.0
2.0
A
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 1)
Derate Above 25°C
P
D
500
1.68
mW
mW/°C
Thermal Resistance, Junction to Ambient Air (Note 1)
R
θ
JA
300
°C/W
Operating and Storage Temperature Range
T
J
, T
STG
-65 to +175
°C
Electrical Characteristics @T
A
= 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
Maximum Forward Voltage 1N4148
1N4448
1N4448
V
FM
⎯
0.62
⎯
1.0
0.72
1.0
V
I
F
= 10mA
I
F
= 5.0mA
I
F
= 100mA
Maximum Peak Reverse Current
I
RM
⎯
5.0
50
30
25
μA
μA
μA
nA
V
R
= 75V
V
R
= 70V, T
J
= 150°C
V
R
= 20V, T
J
= 150°C
V
R
= 20V
Total Capacitance
C
T
⎯
4.0 pF
V
R
= 0, f = 1.0MHz
Reverse Recovery Time
t
rr
⎯
4.0 ns
I
F
= 10mA to I
R
=1.0mA
V
R
= 6.0V, R
L
= 100Ω
Notes: 1. Valid provided that device terminals are kept at ambient temperature.
2. EC Directive 2002/95/EC (RoHS) revision 13.2.2003. Glass and high temperature solder exemptions applied where applicable,
see EU Directive Annex Notes 5 and 7.
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