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LL4448 Datasheet, PDF (1/2 Pages) Semtech Corporation – Silicon Expitaxial Planar Diode 
LL4448
SMALL SIGNAL SWITCHING DIODE
REVERSE VOLTAGE: 75 V
CURRENT: 0.15 A
FEATURES
Silicon epitaxial diode
High speed switching diode
500mW power dissipation
MECHANICAL DATA
Case:MINI-MELFglass case
Polarity:Color band denotes cathode
Weight: Approx 0.031 grams
MINI-MELF
Cathode indification
3.4 +0.3
-0.1
0.4 0.1
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25oC ambient temperature unless otherwise specified
MAXIMUM RATINGS
Reverse voltage
VR
Peak reverse voltage
V RM
Average forw ard rectified current
Half w ave rectification w ith resistive load
IO
at VR=0V
Forw ard surge current at tp=1µ s
IFSM
Pow er dissipaton at tamb=25oC
Ptot
Junction temperature
TJ
Storage temperature range
TSTG
1) Valid prov ided that electrodes are kept at ambient temperature.
ELECTRICAL CHARACTERISTICS
Forw ard voltage @ IF=5.0mA
@IF=100mA
VF
Leakage current at VR=20V
IR
at VR=75V
IR
111111111at VR=20V TJ=150oC
IR
Capacitance at VR=0V,f=1MHz,VHF=50mV
Ctot
Voltage rise w hen sw itching on
tested w ith 50mA pulses
Vfr
tp=0.1 S,rise time 30ns, fp=5 to 100KHz
Reverse recovery time
f rom IF=10mA
trr
VR=6V,RL=100 ,at IR=1mA
Thermal resistance junction to ambient
R JA
Rectification effciency at 100MHz,VRF=2V
V
1)Valid prov ided that electrodes are kept at ambient temperature
MIN
0.62
-
-
-
-
-
-
-
0.45
LL4448
75
100
150
2.0
5001)
175
35-55--- +175
TYP
-
0.93
-
-
-
-
-
-
-
MAX
0.72
1.0
25.0
5.0
50.0
4.0
2.5
4.0
5001)
-
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UNITS
V
V
mA
A
mW
oC
oC
UNITS
V
nA
A
A
pF
V
ns
K/W
-