1 Infrared LED Small emission spot LED using current con- .. ned chip L10596 series www.hamamatsu.com The L10596 is infrared LED with a microball lens cemented to the current con.. nement chip surface. This combination ensures narrow directivity and uniform emission. In particular, the L10596-02 uses a lens cap that delivers even narrower directivity. As a variant type not using a microball lens, the L10596-03 is also available with the LED chip potted with resin, which gives a small emission spot of ö160 ..m. The L10569 series has a light-re.. ecting layer inserted between the emission section and the GaAs substrate, which increases the light output by 1.5 times (L10596-03: 1.3 times) that of conventional products. Absolute maximum ratings (Ta=25 °C) Electrical and optical characteristics (Ta=25 °C) Parameter Symbol Condition Value Unit Forward current IF 80 mA Reverse voltage VR 3 V Pulse forward current IFP Pulse width=10 ..s Duty ratio=1% 0.45 A Operating temperature Topr -30 to +85 °C Storage temperature Tstg *1 -40 to +100 °C *1: The L10596-03 is guaranteed to resist temperature cycle test of up to 5 cycles. Features Applications High radiant output power: Automatic control systems L10596/-02: 3.0 mW (IF=50 mA typ.) Optical switches Uniform emission Small emission spot: L10596: ö400 ..m L10596-03: ö160 ..m Narrow directivity (L10596/-02) Parameter Symbol Condition L10596 L10596-02 L10596-03 Unit Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Peak emission wavelength ëp IF=50 mA 850 870 890 850 870 890 850 870 890 nm Spectral half width Äë IF=50 mA - 35 50 - 35 50 - 35 50 nm Forward voltage VF IF=50 mA - 1.6 1.8 - 1.6 1.8 - 1.6 1.8 V Pulse forward voltage VFP IF=0.45 A - 3.3 4.1 - 3.3 4.1 - 3.3 4.1 V Reverse current IR VR=3 V - - 10 - - 10 - - 10 ..A Radiant .. ux öe IF=50 mA 2.1 3.0 - 2.1 3.0 - 5.0 6.5 - mW Cut-off frequency*2 fc IF=50 mA ± 10 mAp-p 10 15 - 10 15 - 10 15 - MHz *2: Frequency at which the radiant output drops by 3 dB relative to the output at 100 kHz

3 Infrared LED L10596 series Allowable forward current vs. duty ratio 0.01 0.1 1 10 100 10 100 1000 10000 Duty ratio (%) Allowable forward current (mA) (Typ. Ta=25 °C) Pulse width=1 ìs Pulse width=100 ìs Pulse width=10 ìs KLEDB0310EA Radiant output vs. ambient temperature Allowable forward current vs. ambient temperature -40 -20 0 20 40 60 80 100 -3 -2 0 -1 +1 Ambient temperature (°C) Relative radiant output (dB) (Typ. IF=50 mA) -40 -20 0 20 40 60 80 100 0 40 60 80 100 Ambient temperature (°C) Relative allowable forward current (%) 20 KLEDB0308EA KLEDB0309EA

4 Infrared LED L10596 series Cat. No. KLED1052E03 Jul. 2010 DN 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...