LED
Infrared LED
L1915 series
TO-46 type GaAlAs infrared LED
L1915 is mounted on a TO-46 metal stem potted with clear epoxy resin. L1915-01 is encapsulated in a TO-46 package sealed with a glass lens window. L1915-02 is also encapsulated in a TO-46 package but sealed with a flat glass window.
Features
Applications
l High radiant output power l Direct modulation possible l High reliability and long life
l Auto-focus l Automatic control systems l Optical switches l Mark sensors l Optical remote control
s Absolute maximum ratings (Ta=25 °C)
Parameter Forward current Reverse voltage Pulse forward current Operating temperature Storage temperature Symbol IF VR IFP Topr Tstg Condition Value 100 5 1.5 -30 to +85 -40 to +100 * Unit mA V A °C °C
Pulse width=10 µs Duty ratio=1 %
* L1915 is guaranteed to resist temperature cycle test of up to 5 cycles.
s Electrical and optical characteristics (Ta=25 °C)
Parameter Peak emission wavelength Spectral half width Forward voltage Pulse forward voltage Reverse current Radiant flux Radiant illuminance Rise time Fall time Symbol λp ∆λ VF VFP IR φe PE tr tf Min. IF=50 mA 870 IF=50 mA IF=50 mA IF=1.5 A VR=5 V IF=50 mA 8 IF=50 mA IF=50 mA, 10 to 90 % IF=50 mA, 90 to 10 % Condition L1915 L1915-01 L1915-02 Unit Typ. Max. Min. Typ. Max. Min. Typ. Max. 890 920 870 890 920 870 890 920 nm 80 80 80 nm 1.4 1.5 1.4 1.5 1.4 1.5 V 3.1 3.8 3.1 3.8 3.1 3.8 V 5 5 5 µA 10 3.6 4.5 3.6 4.5 mW 1.0 2.7 1.0 mW/cm2 0.45 0.7 0.45 0.7 0.45 0.7 µs 0.45 0.7 0.45 0.7 0.45 0.7 µs
1
Infrared LED
s Emission spectrum
100 (Typ. Ta=25 ˚C, IF=50 mA)
L1915 series
s Radiant flux vs. forward current
1000 (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
RELATIVE RADIANT OUTPUT (%)
80
RADIANT FLUX (mW)
L1915 100
60
40
10 L1915-01/-02
20
0 700
800
900
1000
1
1
10
100
1000
10000
WAVELENGTH (nm)
KLEDB0117EB
FORWARD CURRENT (mA)
KLEDB0139EB
s Forward current vs. forward voltage
10000 (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
s Directivity
(Typ. Ta=25 ˚C) 20˚ 10˚ 0˚ 100 % L1915 80 % 10˚ 20˚ L1915-02 30˚
30˚
FORWARD CURRENT (mA)
1000
L1915-01
40˚
60 %
40˚
100
50˚ 60˚ 70˚ 80˚ 20 % 40 % 50˚ 60˚ 70˚ 80˚ 90˚
10
1 1.0
90˚
1.5
2.0
2.5
3.0
3.5
FORWARD VOLTAGE (V)
KLEDB0140EB
RELATIVE RADIANT OUTPUT (%)
KLEDB0141EA
s Radiant output vs. ambient temperature
+3 +2 +1 0 -1 -2 -3 -4 -5 -40 (Typ. IF=50 mA)
s Allowable forward current vs. ambient temperature
(Typ.)
RELATIVE ALLOWABLE FORWARD CURRENT (%)
100
RELATIVE RADIANT OUTPUT (dB)
80
60
40
20
-20
0
20
40
60
80
100
0 -40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE (˚C)
KLEDB0150EA
AMBIENT TEMPERATURE (˚C)
KLEDB0027EB
2
Infrared LED
s Allowable forward current vs. duty ratio
10000 (Typ. Ta=25 ˚C)
L1915 series
ALLOWABLE FORWARD CURRENT (mA)
PULSE WIDTH=1 µs PULSE WIDTH=10 µs 1000
PULSE WIDTH=100 µs 100
10 0.01
0.1
1
10
100
DUTY RATIO (%)
KLEDB0287EA
s Dimensional outlines (unit: mm) L1915
CLEAR EPOXY RESIN 4.2 ± 0.1
L1915-01
2.3 ± 0.3
L1915-02
5.4 ± 0.2 4.7 ± 0.1
3.6 ± 0.2 13.5
KLEDA0053EB
5.4 ± 0.1
5.4 ± 0.2 4.65 ± 0.1
GLASS WINDOW 3.0 ± 0.1
4.5 ± 0.2 6.65 ± 0.2 13.5
1.12 ± 0.1
0.45 LEAD 2.54 ± 0.2
13.5
0.45 LEAD 2.54 ± 0.2
0.45 LEAD 2.54 ± 0.2
COMMON TO CASE
COMMON TO CASE
COMMON TO CASE
KLEDA0009ED
KLEDA0052EB
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. ©2006 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, 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.: 19, 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 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
Cat. No. KLED1013E03 Jun. 2006 DN
3