L10881

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RC-LED for 156 Mbps POF communications L10881 The L10881 is designed for high-speed POF (plastic optical fi ber) communications. The device is molded into miniature plastic package with lens, allowing easy and effi cient coupling to a POF. Features Applications Red RC-LED for POF data link Plastic optical fi ber communications (FA, offi ce machine, home automation, LAN) Data transmission in locations subject to high electromagnetic noise Peak emission wavelength: 650 nm (suitable for POF communications) High-speed response: fc=70 MHz Typ. High output power: Po=-2 dBm (IF=20 mA, φ1 mm, POF) Designed to be used with the S7727 Absolute maximum ratings (Ta=25 °C) Parameter Symbol Value Unit Forward current I F 50 *1 mA Power dissipation Pmax 130 *2 mW Operating temperature Topr 0 to 60 °C Storage temperature Tstg -40 to +85 °C Soldering - 230 °C, 5 s, at least 1.5 mm away from package surface - *1: Decreases at a rate of 0.57 mA/°C *2: Power dissipation decreases at a rate of 1.7 mW/°C above Ta=25 °C www.hamamatsu.com Forward current vs. ambient temperature -10 5020 3001 0 Ambient temperature (°C) Forward current (mA) 40 60 70 KLEDB0340EA

Red LED for optical link L10881 Electrical and optical characteristics (Ta=25 °C) Parameter Symbol Condition Min. Typ. Max. Unit Forward voltage V F IF=20 mA - 1.9 2.4 V Peak emission wavelength λp IF=20 mA 640 650 665 nm Spectral half width (FWHM) Δλ IF=20 mA - - 25 nm Fiber coupled optical power Po *3 -4.5 -2 +0.5 dBm Pulse distortion ΔT *3 -2.5 - 2.5 ns Cut-off frequency fc I F=20 mA ±1 mAp-p 60 70 - MHz *3: Measured with the recommended driver circuit shown below. Input is a pseudo-random bi-phase signal at 156 Mbps (NZR signal conversion). Average value (duty ratio 50 %) measured by using a plastic fi ber of φ1 mm. SI-POF and NA=0.5 (GH4001 made by Mitsubishi Rayon). Vcc=5.0 V, R1=100 Ω, R2=300 kΩ, C1=20 pF Note:

• A bypass capacitor (0.1 μF) and another capacitor (4.7 μF) are connected between Vcc and GND at a position within 3 mm from the lead. The center of the optical fi ber is aligned with the center of the lens on the package. The distance between the fi ber end and the lens is 0.1 mm.
• When using optical fi bers with small core diameter, the fi ber-coupled optical output power may vary. Vcc Icc SIGNAL INPUT 1 14 74ACT08 0.1 mF 0.1 µFR 2 L10881(X) KLEDC0047EA Recommended driver circuit Emission spectrum Forward current vs. forward voltage 600 120 100 700640 660620 Wavelength (nm) Relative Fiber-coupled optical output power (%) 680 (Typ. Ta=25 °C, IF=20 mA) Forward voltage (V) Forward current (mA) 2.5 (Typ. Ta=25 °C, IF=20 mA) KLEDB0321EA KLEDB0322EA

Cat. No. KLED1053E02 Nov. 2010 DN Red LED for optical link L10881 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. Type numbers of products listed in the specification sheets or supplied as samples may have a suffix “(X)” which means tentative specifications or a suffix “(Z)” which means developmental specifications. ©2010 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 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 8152-375-0, Fax: (49) 8152-265-8 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 Dimensional outline (unit: mm) 5.0 4.5 ± 0.3 (Including burr) 5.2 ± 0.3 (Including burr) 0.5 1.27 (Specified at the lead root) 1.27 1.27 0.4 1.4(2.15)(1.5) 6.6 ± 0.4 4.3 (0.9) 10° 10° 5.0 Tolerance unless otherwise noted: ±0.1, ±2° Shaded area indicates burr. Values in parentheses indicate reference value. Lead surface finish: Silver plating Packaging: tray (100 pcs/tray) (Please consult us for large volume orders.) (0.9) Cathode Cathode Anode Cathode 1.77 0.97 0.69 10° (0.9) 4.3 0.25 10° 1.8 KLEDA0088EA Output waveform exampleFiber-coupled optical output power vs. ambient temperature Vertical axis: 30 mV/div., Horizontal axis: 5 ns/div. (Ta=25 °C, Vcc=5.00 V, R1=100 Ω, R2=300 Ω, CL=20 pF) Ambient temperature (°C) Relative Fiber-coupled optical output power (%) -40 140 100 120 8020 40-20 0 60 (ŎŦŢŴŶųŦťġŸŪŵũġŵũŦġųŦŤŰŮŮŦůťŦťġťųŪŷŦųġŤŪųŤŶŪŵ) KLEDB0323EA