L10762_15 Datasheet, PDF (1/3 Pages) Hamamatsu Corporation – Red LED

Red LED
L10762
Resonant cavity LED for POF data communication
The L10762 is a red LED designed for POF data communications. A microball lens is bonded to the LED chip to enhance fibre-
coupling efficiency.
Features
Improved fiber-coupling efficiency
A microball lens is bonded to the LED chip surface to en-
hance the coupling efficiency to optical fibers.
Fiber end output power *² was boosted about 7 times
higher than our conventional type.
High-speed response: 70 MHz
Applications
POF (plastic optical fiber) data communication
Absolute maximum ratings
Parameter
Symbol
Value
Unit
Reverse voltage
VR
3
V
Forward current
IF
Pulsed forward current *¹
IFP
50
mA
80
mA
Operating temperature
Topr
-30 to +85
°C
Storage temperature
Tstg
-40 to +100
°C
*1: Pulse width: 1 μs, Duty ratio=50 %
Electrical and optical characteristics (Ta=25 °C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Peak emission wavelength
λp
IF=20 mA
640
660
670
nm
Spectral half width
Fiber end output *²
Δλ
IF=20 mA
Pf
IF=20 mA
-
10
0.7
1.0
20
nm
-
mW
Forward voltage
VF
IF=20 mA
-
1.9
2.4
V
Reverse current
Cut-off frequency *³
IR
VR=3 V
-
-
fc
IF=20 mA ±1 mAp-p
60
70
10
μA
-
MHz
*2: Plastic fiber: 1 mm in core diameter, 1 meter in length, and Z (distance between cap surface and fiber end)=0.3 mm
*3: Frequency at which the radiant output drops by 3 dB relative to the output at 100 kHz
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