LED
Infrared LED
L6437 series
High radiant output GaAs LED with position reference hole
Features Applications
l Lead frame package with position reference hole l Small package l High radiant output power
l Auto-focus l Optical switch
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 65 5 1.0 -25 to +80 -30 to +100 Unit mA V A °C °C
Pulse width=10 µs Duty ratio=1 %
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 Condition IF=50 mA IF=50 mA IF=50 mA IF=1.0 A VR=5 V IF=50 mA IF=50 mA IF=50 mA, 10 to 90 % IF=50 mA, 90 to 10 % Min. 920 7.0 Typ. 945 60 1.35 2.5 10.0 0.5 2.0 1.0 Max. 970 1.45 3.1 20 3.0 2.0 Unit nm nm V V µA mW mW/cm2 µs µs
1
Infrared LED
s Emission spectrum
100 (Typ. Ta=25 ˚C, IF=50 mA)
1000
L6437 series
s Radiant flux vs. forward current
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
RELATIVE RADIANT OUTPUT (%)
80
60
RADIANT FLUX (mW)
100
10
40
20
1
0 800
900
1000
1100
0.1 0.1
1
10
100
1000
WAVELENGTH (nm)
KLEDB0181EA
FORWARD CURRENT (mA)
KLEDB0182EA
s Forward current vs. forward voltage
1000 (Typ. Ta=25 ˚C, tw=100 µs, 1 %)
s Directivity
(Typ. Ta=25 ˚C) 30˚ 20˚ 10˚ 0˚ 100 % 10˚ 20˚ 30˚
FORWARD CURRENT (mA)
40˚
100
80 %
40˚
50˚
60 %
50˚
60˚
10
40 %
60˚
70˚ 20 % 80˚
1 1.0
70˚ 80˚ 90˚
90˚
1.5 2.0 2.5 3.0
FORWARD VOLTAGE (V)
KLEDB0183EA
RELATIVE RADIANT OUTPUT (%)
KLEDB0071EB
s Radiant output vs. ambient temperature
+2 +1 0 -1 (Typ. IF=50 mA)
s Allowable forward current vs. ambient temperature
(Typ.)
RELATIVE ALLOWABLE FORWARD CURRENT (%)
100
RELATIVE RADIANT OUTPUT (dB)
80
60
-2 -3 -4 -5 -40
40
20
-20
0
20
40
60
80
100
0 -40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE (˚C)
KLEDB0184EA
AMBIENT TEMPERATURE (˚C)
KLEDB0027EB
2
Infrared LED
s Allowable forward current vs. duty ratio
10000 (Typ. Ta=25 ˚C)
L6437 series
ALLOWABLE FORWARD CURRENT (mA)
PULSE WIDTH=1 µs 1000 PULSE WIDTH=10 µs
PULSE WIDTH=100 µs 100
10 0.01
0.1
1
10
100
DUTY RATIO (%)
KLEDB0290EA
s Dimensional outlines (unit: mm) ➀ L6437
6.0 ± 0.06 4.1 ± 0.2 (INCLUDING BURR)
➁ L6437-01
6.0 ± 0.06 4.1 ± 0.2 (INCLUDING BURR)
5.0 ± 0.2 (INCLUDING BURR)
0.5
0.8+0.06 -0
0.8+0.06 -0
0.5
5.0 ± 0.2 (INCLUDING BURR)
1.905 1.905
4.7 ± 0.1
4.8 ± 0.1
1.905 1.905
4.7 ± 0.1
R0.4 -0
+0.03
(1.25) (1.25) 1.95 ± 0.4 4.0 ± 0.1
0.9 -0 (REFERENCE HOLE) 1.95 ± 0.4
+0.06
R0.4+0.03 -0
0.8 ± 0.1 1.8 ± 0.1
1.5 ± 0.4 1.95 ± 0.4 4.0 ± 0.1
0.9+0.06 -0 (REFERENCE HOLE) 1.5 ± 0.4 1.95 ± 0.4
0.8 ± 0.1 1.8 ± 0.1
7.9 ± 0.3 10˚
NC CATHODE ANODE NC CATHODE CATHODE
7.9 ± 0.3 7.0 ± 0.3 0.7 ± 0.3 10˚ 0.7 ± 0.3
NC CATHODE ANODE NC CATHODE CATHODE
0.25
5˚
0.25
5˚
KLEDA0031EB
0.1 ± 0.1
0.25
KLEDA0062EA
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. KLED1027E02 Jun. 2006 DN
5˚
4.8 ± 0.1
1.77
10˚
1.77
10˚
5˚
3