1N4148 / 1N4448
FAST SWITCHING DIODE
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Features
•
•
•
•
Fast Switching Speed
General Purpose Rectification
Silicon Epitaxial Planar Construction
Lead Free Finish, RoHS Compliant (Note 2)
Mechanical Data
•
•
•
•
•
•
•
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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
Symbol
V
RM
V
RRM
V
RWM
V
R
V
R(RMS)
I
FM
I
O
@ t = 1.0s
@ t = 1.0μs
I
FSM
1N4148
100
75
53
300
150
1.0
2.0
500
1N4448
Unit
V
V
V
mA
mA
A
Characteristic
Non-Repetitive Peak Reverse Voltage
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 1)
Average Rectified Output Current (Note 1)
Non-Repetitive Peak Forward Surge Current
Thermal Characteristics
Characteristic
Power Dissipation (Note 1)
Derate Above 25°C
Thermal Resistance, Junction to Ambient Air (Note 1)
Operating and Storage Temperature Range
Symbol
P
D
R
θ
JA
T
J
, T
STG
Value
500
1.68
300
-65 to +175
Unit
mW
mW/°C
°C/W
°C
Electrical Characteristics
Characteristic
Maximum Forward Voltage
@T
A
= 25°C unless otherwise specified
Symbol
1N4148
1N4448
1N4448
V
FM
Min
⎯
0.62
⎯
⎯
⎯
⎯
Max
1.0
0.72
1.0
5.0
50
30
25
4.0
4.0
Unit
V
μA
μA
μA
nA
pF
ns
Test Condition
I
F
= 10mA
I
F
= 5.0mA
I
F
= 100mA
V
R
= 75V
V
R
= 70V, T
J
= 150°C
V
R
= 20V, T
J
= 150°C
V
R
= 20V
V
R
= 0, f = 1.0MHz
I
F
= 10mA to I
R
=1.0mA
V
R
= 6.0V, R
L
= 100Ω
Maximum Peak Reverse Current
Total Capacitance
Reverse Recovery Time
Notes:
I
RM
C
T
t
rr
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.
1N4148 / 1N4448
Document number: DS12019 Rev. 7 - 2
1 of 2
www.diodes.com
March 2008
© Diodes Incorporated
1N4148 / 1N4448
I
F
, INSTANTANEOUS FORWARD CURRENT (mA)
1,000
10,000
100
I
R
, LEAKAGE CURRENT (nA)
1,000
10
100
1.0
10
0.1
V
R
= 20V
0.01
0
0.4
0.8
1.2
1.6
2.0
V
F
, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Typical Forward Characteristics
1
0
100
200
T
J
, JUNCTION TEMPERATURE (
°
C)
Fig. 2 Leakage Current vs. Junction Temperature
Ordering Information
Part Number
1N4148-A
1N4148-T
1N4448-A
1N4448-T
Notes:
(Note 3)
Case
DO-35
DO-35
DO-35
DO-35
Packaging
10K/Ammo Pack
10K/Tape & Reel, 13-inch
10K/Ammo Pack
10K/Tape & Reel, 13-inch
3. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Package Outline Dimensions
Dim
A
B
C
D
DO-35
Min
25.40
⎯
⎯
⎯
All Dimensions in mm
Max
⎯
4.00
0.60
2.00
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
1N4148 / 1N4448
Document number: DS12019 Rev. 7 - 2
2 of 2
www.diodes.com
March 2008
© Diodes Incorporated
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