HAMAMATSU L2656-03, L2656 Datasheet
LED
Infrared LED
L2656 series
High power GaAlAs infrared LED
Features
l
High radiant output power
l
High reliability
■
Absolute maximum ratings (Ta=25 °C)
Parameter Symbol Condition Value Unit
Forward current I
Reverse voltage V
Pulse forward current I
Operating temperature Topr -30 to +85
Storage temperature Tstg -40 to +100 *
* Guaranteed to resist temperature cycle test of up to 5 cycles.
F
R
Pulse width=10 µs
FP
Duty ratio=1 %
Applications
l
Optical switch
l
Automatic control system
80 mA
1.0 A
5 V
C
°
C
°
■
Electrical and optical characteristics (Ta=25 °C)
Parameter Symbol Condition
Peak emission wavelength
Spectral half width
Forward voltage V
Pulse forward voltage V
Reverse current I
Radiant flux
Radiant illuminance P
Rise time tr IF=50 mA, 10 to 90 % - 0.45 0.7 - 0.45 0.7 µs
Fall time tf IF=50 mA, 90 to 10 % - 0.45 0.7 - 0.45 0.7 µs
IF=50 mA 870 890 920 870 890 920 nm
p
λ
IF=50 mA - 50 - - 50 - nm
∆λ
=50 mA - 1.45 1.6 - 1.45 1.6 V
FIF
=1 A - 3.4 4.0 - 3.4 4.0 V
FPIF
VR=5 V - - 5 - - 5 µA
R
IF=50 mA 13 15 - 7.5 9 - mW
e
φ
=50 mA - 1.7 - - 4.4 - mW/cm
EIF
Min. Typ. Max. Min. Typ. Max.
L2656 L2656-03
Unit
2
Infrared LED
L2656 series
■ Emission spectrum
100
80
60
40
20
RELATIVE RADIANT OUTPUT (%)
0
700 800 900 1000
WAVELENGTH (nm)
■ Directivity
20˚ 10˚ 10˚ 20˚
L2656
30˚
40˚
50˚
60˚
70˚
80˚
90˚
RELATIVE RADIANT OUTPUT (%)
100
%
80
%
60 %
40 %
20
%
(Typ. Ta=25 ˚C, IF=50 mA)
(Typ. Ta=25 ˚C)
L2656-03
■ Radiant flux vs. forward current
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
L2656
FORWARD CURRENT (mA)
KLEDB0201EA
1000
100
(mW)
10
RADIANT FLUX
1
1 10 100 1000
■ Radiant output vs. ambient
temperature
+3
30˚
40˚
50˚
60˚
70˚
80˚
90˚
KLEDB0144EA
+2
+1
0
-1
-2
-3
-4
RELATIVE RADIANT OUTPUT (dB)
-5
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE (˚C)
L2656-03
(Typ. IF=50 mA)
■ Forward current vs. forward voltage
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
FORWARD VOLTAGE (V)
KLEDB0142EA
1000
100
FORWARD CURRENT (mA)
10
1.0 1.5 2.0 2.5 3.0 3.5
■ Allowable forward current vs.
ambient temperature
100
80
60
40
20
RELATIVE ALLOWABLE FORWARD CURRENT (%)
0
KLEDB0145EA
-40 -20 0 20
AMBIENT TEMPERATURE (˚C)
40 60 80 100
KLEDB0143EA
(Typ.)
KLEDB0027EB
■
■ Allowable forward current vs.
Dimensional outlines (unit: mm)
duty ratio
(Typ.
Ta=25
10
PULSE WIDTH=1 µs
1
PULSE WIDTH=100 µs
0.1
ALLOWABLE FORWARD CURRENT (A)
0.01
0.01
0.1 1 10 100
DUTY RATIO (%)
PULSE WIDTH=10 µs
˚C)
CLEAR EPOXY RESIN
KLEDB0038EA
COMMON TO CASE
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. ©2001 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
L2656 L2656-03
5.4 ± 0.1
4.2 ± 0.1
2.3 ± 0.3
0.45
LEAD
2.54 ± 0.2
13.5
1.12 ± 0.1
KLEDA0069EA
0.45
LEAD
COMMON TO CASE
5.4 ± 0.2
4.65 ± 0.1
4.5 ± 0.2
2.54 ± 0.2
6.65 ± 0.213.5
KLEDA0070EA
Cat. No. KLED1024E01
Apr. 2001 DN
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