1N4148/1N4448/1N914B
500mW High Speed Switching Diode
Small Signal Diode
DO-35 Axial Lead
HERMETICALLY SEALED GLASS
Features
Fast switching device(T
rr
<4.0nS)
Through-hole device type mounting
Moisture sensitivity level 1
Solder hot dip Tin(Sn) lead finish
Pb free version and RoHS compliant
All External Surfaces are Corrosion Resistant and
Leads are Readily Solderable
A
D
C
B
Mechanical Data
Case : : DO-35 package (SOD-27)
High temperature soldering guaranteed : 260°C/10s
Polarity : Indicated by cathode band
Weight : 109 ± 4 mg
Dimensions
A
B
C
D
Unit (mm)
Min
0.45
3.05
25.40
1.53
Unit (inch)
Min
0.018
0.120
1.000
0.060
Max
0.55
5.08
38.10
2.28
Max
0.022
0.201
1.500
0.090
Ordering Information
Package
DO-35
DO-35
DO-35
DO-35
DO-35
DO-35
Part No.
1N4148
A0
1N4448
A0
1N914B
A0
1N4148
R0
1N4448
R0
1N914B
R0
Packing
5K / Ammo
5K / Ammo
5K
/ Ammo
10K / 14" Reel
10K / 14" Reel
10K
/ 14" Reel
Maximum Ratings and Electrical Characteristics
Rating at 25°C ambient temperature unless otherwise specified.
Maximum Ratings
Type Number
Power Dissipation
Repetitive Peak Reverse Voltage
Peak Forward Surge Current
Pluse Width = 1uS, Square Wave
Non-Repetitive Peak Forward Current
Average Forward Current
Thermal Resistance (Junction to Ambient)
Junction and Storage Temperature Range
Symbol
P
D
V
RRM
I
FSM
I
FM
I
O
RθJA
T
J
, T
STG
Value
500
100
2.0
450
150
240
-65 to + 150
Units
mW
V
A
mA
mA
°C/W
°C
Version : D10
1N4148/1N4448/1N914B
500mW High Speed Switching Diode
Small Signal Diode
Maximum Ratings and Electrical Characteristics
Rating at 25°C ambient temperature unless otherwise specified.
Electrical Characteristics
Type Number
Reverse Breakdown Voltage
Forward Voltage
1N4448, 1N914B
1N4148
1N4448, 1N914B
Reverse Leakage Current
Junction Capacitance
Reverse Recovery Time (Note 1)
Notes: 1. Test Conditions: I
F
=10mA, V
R
=6V,R
L
=100Ω, I
RR
=1mA
I
F
=5.0mA
I
F
=10.0mA
I
F
=100.0mA
V
R
=20V
V
R
=75V
V
R
=0, f=1.0MHz
I
R
C
J
Trr
V
F
0.62
0.72
1.0
1.0
25
5.0
4.0
4.0
nA
μA
pF
ns
V
I
R
=100uA
I
R
=5uA
Symbol
V
(BR)
Min
100
75
Max
Units
V
Tape & Reel specification
Item
Overall width
Tape spacing
Component Pitch
Untaped lead
Bent
Tape Mismatch
Glass offset
Taped lead
lead beyond tape
Reel outside diameter
Reel inner diameter
Feed hole width
Reel width
Symbol
A
B
C
L1-L2
K
E
F
G
H
D
D1
D2
W1
Dimension(mm)
64+1.69/-0.69
52.0+/-0.69
5.08+/-0.40
+/-0.69
1.2 Max
0.55(MAX)
0.69(MAX)
3.2Min
0
260+/-3
48+/-1
20+/-0.5
72+3/-1
H
W1
G
L1
F
D
B
D2
D1
L2
A
E
C
K
Version : D10
1N4148/1N4448/1N914B
500mW High Speed Switching Diode
Small Signal Diode
Rating and Characteristic Curves
FIG 1 Typical Forward Characteristics
1
Ta=25°C
100
Ta=25°C
FIG 2 Reverse Current vs Reverse Voltage
Reverse Current (uA)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Forward Current (A)
10
0.1
1
0.01
0.1
0.001
0.01
0
20
40
60
80
100
120
Forward Voltage (V)
Reverse Voltage (V)
FIG 3 Admissible Power Dissipation Curve
500
1.5
FIG 4 Typical Junction Capacitance
f=1.0 MHz
1.2
0.9
0.6
0.3
0
400
300
200
100
0
0
25
50
75
100
125
150
175
200
Junction Capacitance (pF)
Power Dissipation (mW)
0
5
10
15
20
25
30
Ambient Temperature (°C)
Reverse Voltage (V)
Version : D10
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