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L8506 [HAMAMATSU]

Infrared LED; 红外发光二极管
L8506
型号： L8506
厂家： HAMAMATSU CORPORATION    HAMAMATSU CORPORATION
描述：

Infrared LED
红外发光二极管

二极管
文件： 总2页 (文件大小：108K)
中文：  中文翻译
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L E D  
Infrared LED  
L8506  
LED emitting collimated light  
When an LED is used for optical encoders, it must emit a uniform, small spot light. L8506 is an infrared LED that emits such a light beam  
collimated by the combination of an aspheric lens. L8506 uses a non-confined structure chip that does not show an abrupt deterioration often  
encountered with some types of confined chips. The structure of L8506 is also designed to have high resistance to cyclic temperature changes so  
it copes with tough environmental conditions required for optical encoders used in factories.  
Features  
Applications  
Collimated light beam  
Uniform spot light  
Optical encoder  
Optical switch  
Narrow directivity: 5ꢀ  
High-speed response: 40 MHz Typ.  
High reliability  
ꢀꢀAbsolute maximum ratings (Ta=25 °C, unless otherwise noted)  
Parameter  
Reverse voltage  
Symbol  
Condition  
Value  
5
80  
Unit  
V
mA  
VR  
IF  
-
Forward current  
Forward current reduction rate  
0.67  
mA/°C  
Pulse width=10 µs  
Duty ratio=1 %  
Pulse forward current  
IFP  
0.5  
A
Pulse forward current reduction rate  
Power dissipation  
Operating temperature  
Storage temperature  
-
P
Topr  
Tstg  
7
150  
-30 to +85  
-40 to +100  
mA/°C  
mW  
°C  
°C  
ꢀꢀElectrical and optical characteristics (Ta=25 °C)  
Parameter  
Peak emission wavelength  
Spectral half width  
Radiant flux  
Symbol  
Condition  
IF=50 mA  
Min.  
840  
-
3.4  
-
-
-
25  
Typ.  
870  
45  
5.8  
1.6  
-
Max.  
900  
-
-
1.75  
5
-
Unit  
nm  
nm  
mW  
V
µA  
mm  
MHz  
λp  
∆λ  
φe  
IF=50 mA  
IF=50 mA  
Forward voltage  
VF  
IF=50 mA  
Reverse current  
IR  
VR=5 V  
IF=30 mA  
IF=30 mA 4 mAp-p  
Spot light size *1  
4.3  
40  
Cut-off frequency *2  
fc  
-
*1: Full width at half maximum, measurement distance (from the sensor to the bottom surface of L8506’s base)=10 mm  
*2: Frequency at which the light output drops by -3 dB from that at 100 kHz.  
1
Infrared LED L8506  
ꢀ Directivity  
ꢀ Forward current vs. forward voltage  
(Typ. Ta=25 ꢀC)  
10ꢀ 20ꢀ  
20ꢀ  
10ꢀ  
0ꢀ  
(Typ. Ta=25 ꢀC)  
100  
100 %  
30ꢀ  
40ꢀ  
30ꢀ  
40ꢀ  
80  
80 %  
60  
60 %  
50ꢀ  
60ꢀ  
50ꢀ  
60ꢀ  
40  
40 %  
20 %  
20  
70ꢀ  
80ꢀ  
90ꢀ  
70ꢀ  
80ꢀ  
90ꢀ  
0
0.5  
1.0  
1.5  
2.0  
RELATIVE RADIANT OUTPUT (%)  
FORWARD VOLTAGE (V)  
KLEDB0227EA  
KLEDB0226EA  
ꢀ Radiant output vs. ambient temperature  
ꢀ Allowable forward current vs. ambient temperature  
(Typ. IF=50 mA)  
(Typ.)  
+2  
100  
80  
+1  
0
60  
-1  
-2  
-3  
40  
20  
0
0
20  
40  
60  
80  
100  
-40  
-20  
0
20  
40  
60  
80  
100  
AMBIENT TEMPERATURE (ꢀC)  
AMBIENT TEMPERATURE (ꢀC)  
KLEDB0228EA  
KLEDB0229EB  
ꢀ Relative light intensity distribution  
ꢀ Dimensional outline (unit: mm)  
5.4 0.2  
100  
L=5 mm  
4.65 0.15  
L=10 mm  
L=20 mm  
80  
60  
40  
0.45  
LEAD  
20  
0
IMAGE  
LED  
-1  
L
SENSOR  
2.54 0.2  
-4  
-3  
-2  
0
1
2
3
4
POSITION ON IMAGE SENSOR (mm)  
KLEDB0230EA  
KLEDA0072EC  
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.  
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2002 Hamamatsu Photonics K.K.  
HAMAMATSU PHOTONICS K.K., Solid State Division  
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com  
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218  
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658  
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10  
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777  
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01  
Cat. No. KLED1035E02  
Feb. 2002 DN  
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741  
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