Infrared LED
High-speed, high output power LED with
mini-lens
L7560
www.hamamatsu.com
1
The L7560 is a high-speed, high-power LED with a micro-ball lens bonded to the surface of the LED chip having an internal con-
fi ned structure. In addition to the micro-ball lens, the LED chip is sealed with a cap with a mini-lens to make the output beam
even narrower. This allows highly effi cient input of the beam into an optical fi ber, making the L7560 well suited for optical fi ber
communications.
Features Applications
High-speed response: 100 MHz Typ. (IF=50 mA)
High radiant output power: 30 μW Typ. (IF=50 mA, GI 50)
Optical fi ber communication
Range-fi nder
Absolute maximum ratings (Ta=25 °C)
Electrical and optical characteristics (Ta=25 °C)
Parameter Symbol Condition Value Unit
Forward current IF70 mA
Reverse voltage VR3V
Pulse forward current IFP Pulse width=10 μs
Duty ratio=1 % 0.25 A
Operating temperature Topr -30 to +85 °C
Storage temperature Tstg -40 to +100 °C
Parameter Symbol Condition Min. Typ. Max. Unit
Peak emission wavelength λpIF=50 mA 820 850 880 nm
Spectral half width ∆λIF=50 mA - 60 - nm
Forward voltage VFIF=50 mA - 1.8 2.0 V
Reverse current IRVR=3 V - - 20 μA
Fiber end output Pf IF=50 mA, GI 50 15 30 - μW
Cut-off frequency fc IF=50 mA + 1 mAp-p 70 100 - MHz
Infrared LED L7560
2
Emission spectrum
Forward current vs. forward voltage
Radiant flux vs. forward current
Frequency characteristic
750 800 850 900 950
0
40
20
60
80
100
Wavelength (nm)
Relative radiant output (%)
(Typ. Ta=25 °C, IF=50 mA)
Forward voltage (V)
(Typ. Ta=25 °C)
Forward current (mA)
0.5
0
100
80
60
40
20
1.0 1.5 2.0
0
-0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3
(Typ. Ta=25 °C, IF=50 mA)
Shift from lens center X, Y (mm)
Relative coupled output (%)
0.4
20
40
60
80
100
Z
Y
X
0
0 1.0 2.0 3.0
(Typ. Ta=25 °C, IF=50 mA)
Distance between lens and fiber end Z (mm)
Relative coupled output (%)
4.0
20
40
60
80
100
Z
Y
X
Forward current (mA)
(Typ. Ta=25 °C)
Radiant flux (mW)
020
0.0
1.0
0.8
0.6
0.4
0.2
40 60 80 100
Duty ratio=1 %
Duty ratio=100 %
1
-10
5
-5
0
100010
Frequency (MHz)
Rekative output (dB)
100
(Typ. Ta=25 °C, IF=50 mA ± 1 mAp-p)
KLEDB0172EB
KLEDB0174EA
KLEDB0100EA KLEDB0101EA
KLEDB0173EA
KLEDB0320EA
Fiber coupling characteristics (GI 50)
X, Y axes Z axis
Infrared LED L7560
www.hamamatsu.com
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. ©2008 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
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. KLED1025E03 Jul. 2008 DN 3
Radiant output vs. ambient temperature
Allowable forward current vs. ambient temperature
Dimensional outline (unit: mm)
Allowable forward current vs. duty ratio
Ambient temperature (°C)
(Typ. IF=50 mA)
Relative radiant output (dB)
-40 -20
-5
+3
+2
+1
0
-1
-2
-3
-4
0 20406080100
-40 -20 0 20
(Typ.)
40 60 80 100
0
40
60
80
100
Ambient temperature (°C)
Relative allowable forward current (%)
20
0.01 0.1 1 10 100
Duty ratio (%)
Allowable forward current (A)
0.01
0.1
1
10 (Typ. Ta=25 °C)
Pulse width=1 µs
Pulse width=10 µs
Pulse width=100 µs
KLEDB0175EA
KLEDB0027EB
KLEDB0176EA
14
3.75 ± 0.2
4.45 ± 0.3
4.65 ± 0.1
5.4 ± 0.2
Lens
1.7 Max.
2.54 ± 0.2
3.8 ± 0.15
Common to case
0.45
Lead
KLEDA0029EB
