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
I Absolute maximum ratings (Ta=25 °C)
Parameter Forward current Reverse voltage Symbol I. V4 I.2 Topr Tstg
Condition
Pulse forward current Operating temperature Storage temperature
Pulse width=10 µs Duty ratio=1 %
Value 100 5 1.5 -30 to +85 -40 to +100 *
Unit mA V A °C °C
* L1915 is guaranteed to resist temperature cycle test of up to 5 cycles.
I 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 lp Dl V. V.2 I4 fe Ptr tf Min. I.=50 mA 870 I.=50 mA I.=50 mA I.=1.5 A V4=5 V I.=50 mA 8 I.=50 mA I.=50 mA, 10 to 90 % I.=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/cm 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
Infrared LED
I Emission spectrum
100 (Typ. Ta=25 ˚C, IF=50 mA)
L1915 series
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
I Radiant flux vs. forward current
1000 (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
I Forward current vs. forward voltage
10000
RELATIVE RADIANT OUTPUT (%)
FORWARD CURRENT (mA)
80
1000
RADIANT FLUX (mW)
L1915 100
60
100
40
10 L1915-01/-02
10
20
0 700
800
900
1000
1
1
10
100
1000
10000
1 1.0
1.5
2.0
2.5
3.0
3.5
WAVELENGTH (nm)
KLEDB0117EB
FORWARD CURRENT (mA)
KLEDB0139EB
FORWARD VOLTAGE (V)
KLEDB0140EB
I Directivity
(Typ. Ta=25 ˚C) 20˚ 10˚ 0˚ 100 % L1915 80 % 10˚ 20˚ L1915-02
I Radiant output vs. ambient temperature
+3 (Typ. IF=50 mA)
I Allowable forward current vs. ambient temperature
(Typ.)
RELATIVE ALLOWABLE FORWARD CURRENT (%)
RELATIVE RADIANT OUTPUT (dB)
30˚
30˚
+2 +1 0 -1 -2 -3 -4 -5 -40
100
80
40˚
L1915-01
60 %
40˚
60
50˚ 60˚ 70˚ 80˚ 90˚
40 %
50˚ 60˚
40
20 %
70˚ 80˚ 90˚
20
-20
0
20
40
60
80
100
0 -40 -20 0 20 40 60 80 100
RELATIVE RADIANT OUTPUT (%)
AMBIENT TEMPERATURE (˚C)
KLEDB0141EA KLEDB0150EA
AMBIENT TEMPERATURE (˚C)
KLEDB0027EB
I Dimensional outlines (unit: mm) L1915
CLEAR EPOXY RESIN 4.2 ± 0.1
L1915-01
2.3 ± 0.3
5.4 ± 0.2 4.65 ± 0.1
L1915-02
5.4 ± 0.2 4.7 ± 0.1
3.6 ± 0.2 13.5
KLEDA0053EB
5.4 ± 0.1
GLASS WINDOW 3.0 ± 0.1
1.12 ± 0.1
0.45 LEAD 2.54 ± 0.2
4.5 ± 0.2
13.5
13.5
6.65 ± 0.2
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. ©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 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. KLED1013E02 Dec. 2002 DN