FAST SWITHING DIODES
DN:T21310A1
http://www.microdiode.com Rev:2021A1 Page :1
1N4148W
Features
Fast switching speed
Surface mount package ideally suited
for automatic insertion
For general purpose switching applications High
conductance
Reverse Voltage 100 Volts Forward Current - 0.25 Ampere
Mechanical Data
Case : JEDEC SOD-123 molded plastic body
Terminals : Plated leads solderable per MIL-STD-750,
Method 2026
Polarity : Polarity symbols marked on case
Weight
: 0.00056ounce, 0.016grams
Marking: T4
Parameter
Maximum Repetitive Peak Reverse Voltage
Maximum RMS voltage
Non-reptitive Peak Forward Surge Current
at 1ms
Total Power Dissipation
Typical Thermal Resistance
（1）
Operating and Storage Temperature Range
Continuous Forward Current
V
RRM
V
RMS
I
F
I
FSM
P
tot
100 V
75
V
300
-55 ~ +150
A
mW
°C
Units
T
j
, T
stg
Symbols
mA
Absolute Maximum Ratings at 25 °C
400
Characteristics at Ta= 25 °C
Parameter
Revers
e BreakdownVoltage at I
R
=1μA
V
(BR)R
75 V
Units
Symbols
1N4148W
Maximum Forward Voltage
V
F
V
at 1m A
at 10 m A
at 50 m A
at 300 m A
at 150mA
0.715
0.855
1.00
1.25
at V
R
=20V
at V
R
=75V T
j
=25
T
j
=25°C
°C
I
R
0.025
5
pF
C
j
Typical Junction Capacitance
Maximum Reverse Recovery Time
ns
t
rr
4
1N4148W
Peak Reverse Current
R
θJA
250
°C/W
（1）P.C.B. mounted with 2.0" X 2.0" (5 X 5 cm) copper pad areas.
SOD-123
Dimensions in inches and (millimeters)
0.0035 (0.09)
1.050 (0.041)
0.0087 (0.22)
1.250 (0.049)
0.008 (0.2 )
0.018 (0.45)
0.010 (0.25)
0.019 (0.475) ref.
0° to 8°
0.110(2.80)
0.098(2.50)
Cathode bar
0.071(1.80)
0.028(0.70)
0.020(0.50)
0.154 (3.90)
0.142 (3.60)
0.059(1.50)
0.008(0.20)max.
4
uA
Average rectified output current
I
0
150
mA
1.5
at V
R
=25V T
j
=150
at V
R
=75V T
j
=150
°C
°C
30
50
1
Rev:2021A1 Page :2
Typical Characterisitics
The curve above is for reference only.
http://www.microdiode.com
1N4148W
Reverse Voltage 100 Volts Forward Current - 0.25 Ampere
100
200
300
400
500
0.0
25 50
75
100 125 150 175
Fig.1 Power Derating Curve
Total Power Dissipation (mW)
Ambient Temperature (°C)
Fig.3 Typical Instaneous Forward
Characteristics
Instaneous Forward Current (mA)
0.2 0.4 0.6 1.2 1.40.0
1.0
10
1000
Instaneous Forward Voltage (V)
Fig.2 Typical Reverse Characteristics
0.01
0.1
1
100
20 40 60 80 100 12000
percent of Rated Peak Reverse Voltage (%)
Fig.4 Typical Junction Capacitance
Junction Capacitance (pF)
10 1000.1
1
10
100
1.0
Reverse Voltage (V)
T
J
=25°C
10
T
J
=25°C
T
J
=150°C
0.8 1.0 1.6
100
T
J
=25°C
Instaneous Reverse Current（μA）