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Visible Light Emitting Diodes (Red)
LN145W
GaAlAs Red Light Emitting Diode
Unit : mm
Not soldered 0.8 max.
Light source for optical fiber communications,
1.50.2
2.10.15 1.60.15 0.80.1
4.50.15 3.50.15
Features
Red light emission close to monochromatic light : P = 700 nm High-power output, high-efficiency High coupling characteristics and suits to a plastic fiber High-speed response : -3dB modulation of 10MHz Side-view flat resin package
3.90.25 12.8 min. (2.95)
2-1.20.3 2-0.450.15 1 2 2.540.2 0.450.2
Absolute Maximum Ratings (Ta = 25C)
Parameter Power dissipation Forward current (DC) Pulse forward current Reverse voltage (DC) Operating ambient temperature Storage temperature
*
Symbol PD IF IFP* VR Topr Tstg
Ratings 120 40 400 3 -25 to +85 -30 to +100
Unit mW mA mA V C C
1: Cathode 2: Anode
tw = 10 s, Duty cycle = 10 %
Electro-Optical Characteristics (Ta = 25C)
Parameter Radiant power Peak emission wavelength Spectral half band width Forward voltage (DC) Reverse current (DC) Half-power angle Response time Cutoff frequency
*Cutoff
Symbol PO P VF IR tr , t f fC*
Conditions IF = 20mA IF = 20mA IF = 20mA IF = 20mA VR = 3V
The angle in which radiant intencity is 50%
min 2.5
typ 4 700 35 1.8 80 30 10
max
Unit mW nm nm
2.2 100
V A deg. ns MHz
IFP = 100mA
PO(at f = fC) =-3 P O ( at f = 1MHz)
frequency fC : Frequency at which 10 x log
[Element moisture resistance] It is difficult to guarantee that the LN145W will meet the moisture resistance specifications (MIL-STD-202D) which are commonly guaranteed for semiconductors.
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