LS4148/LS4448/LS914B
500mW High Speed SMD Switching Diode
Small Signal Diode
Fast switching device(Trr<4.0nS)
Surface device type mounting
Moisture sensitivity level 1
Matte Tin(Sn) lead finish with Nickel(Ni) underplate
Pb free version and RoHS compliant
Min Max Min Max
Case : QUADRO Mini-MELF Package (JEDEC DO-213) 3.30 3.70 0.130 0.146
High temperature soldering guaranteed : 270°C/10s 1.40 1.60 0.055 0.063
0.25 0.40 0.010 0.016
1.25 1.40 0.049 0.055
2.5Kpcs / 7" Reel
Maximum Ratings
Electrical Characteristics
IR=100uA
IR=5uA
Forward Voltage
LS4448, LS914B IF=5.0mA
LS4148 IF=10.0mA
LS4448, LS914B IF=100.0mA
VR=20V
VR=75V
Junction Capacitance VR=0, f=1.0MHz
Reverse Recovery Time (Note 2)
Notes:1. Valid provided that electrodes are kept at ambient temperature
Notes:2. Reverse Recovery Test Conditions: IF=IR=10mA, RL=100Ω, IRR=1mA
LSxxxx L1
LSxxxx L0
Package
QUADRO Mini-MELF
QUADRO Mini-MELF
Packing
10Kpcs / 13" Reel
mW
Rating at 25°C ambient temperature unless otherwise specified.
Type Number Units
PD
Part No.
0.071
Ordering Information
Junction and Storage Temperature Range
Mean Forward Current
IFM
IO
TJ, TSTG
RθJA
Non-Repetitive Peak Forward Current
Thermal Resistance (Junction to Ambient) (Note 1)
°C
-65 to + 200
450
150
°C/W
300
V
V
mA
mA
μA
CJ
Type Number Symbol
75
100
Reverse Breakdown Voltage
0.72
Trr ns
1.0
1.0
25
-
4.0
-
Units
-
Reverse Leakage Current
V
VF
IR
V(BR)
-
-
-
Min Max
nA
V
pF
0.62
-
-
5.0
4.0
Symbol
Weight : 29 ± 2.5 mg
75
D
E 1.80
VRRMRepetitive Peak Reverse Voltage
500
100
Power Dissipation
Non-Repetitive Peak Reverse Voltage
Maximum Ratings and Electrical Characteristics
Features
Mechanical Data Unit (mm) Unit (inch)
Dimensions
A
B
C
QUADRO Mini-MELF (LS34)
Polarity : Indicated by cathode band
Peak Forward Surge Current IFSM 2A
HERMETICALLY SEALED GLASS
All External Surfaces are Corrosion Resistant and
Leads are Readily Solderable
Value
VRSM
C
B
A
D
E
Version : C09
LS4148/LS4448/LS914B
500mW High Speed SMD Switching Diode
Small Signal Diode
Rating and Sharacteristic Curves
FIG 3 Admissible Power Dissipation Curve
0
100
200
300
400
500
0 25 50 75 100 125 150 175 200
Power Dissipation (mW)
FIG 4 Typical Junction Capacitance
0
0.3
0.6
0.9
1.2
1.5
0 5 10 15 20 25 30
Junction Capacitance (pF)
FIG 5 Forward Resistance vs. Forward Current
1
10
100
1000
10000
0 0 1 10 100
Forward Current (mA)
Dynamic Forward Resistance (Ώ)
Ambient Temperature (°C) Reverse Voltage (V)
FIG 1 Typical Forward Characteristics
0.001
0.01
0.1
1
10
100
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Instantaneous Forward Volatge (V)
Instantaneous Forward Current
(A)
Ta=25°C
FIG 2 Reverse Current vs Reverse Voltage
0.01
0.1
1
10
100
0 20 40 60 80 100 120
Reverse Volatge (V)
Reverse Current (uA)
Ta=25°C
Version : C09
