Dated : 21/01/2008
®
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
1N4148W
Silicon Epitaxial Planar Small Signal Diode
Features
• SOD-123 package
• Fast switching
• These diodes are also available in other case
style including the DO-35 case with the type
designation 1N4148, the MiniMELF case with the
type designation LL4148 and the MicroMELF
case with the type designation MCL4148.
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Symbol
Value
Unit
Peak Reverse Voltage
VRM
100
V
Reverse Voltage
VR
75
V
Average Rectified Current Half Wave Rectification with
Resistive Load f ≥ 50 Hz
IF(AV)
150
mA
Non-repetitive Peak Forward Surge Current at t = 1 μs
IFSM
2
A
Power Dissipation
Ptot
400
mW
Thermal Resistance from Junction to Ambient Air
RθJA
450
O
C/W
Junction Temperature
TJ
150
O
C
Storage Temperature Range
Tstg
- 65 to + 150
O
C
Electrical Characteristics (Ta = 25 OC)
Parameter
Symbol
Min.
Max.
Unit
Forward Voltage
at IF = 10 mA
VF
-
1
V
Reverse Current
at VR = 20 V
at VR = 75 V
at VR = 20 V, TJ = 150 OC
IR
-
-
-
25
5
50
nA
µA
µA
Capacitance
at VF = VR = 0 V
Ctot
-
4
pF
Reverse Recovery Time
from IF = 10 mA to IR = 1 mA, VR = 6 V, RL = 100 Ω
trr
-
4
ns
Voltage Rise when Switching On (tested with 50 mA Pulses
tp = 0.1 μs, Rise Time < 30 ns, fp = 5 to 100 KHz)
Vfr
-
2.5
V
Rectification Efficiency
at f = 100 MHz, VRF = 2 V
ηv
0.45
-
-
Anode
2
Top View
Marking Code: "W1"
Simplified outline SOD-123 and symbol
1
2
PINNING
1
PIN
Cathode
DESCRIPTION
W1
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