1 l1909 to-46 type gaalas infrared led infrared led www.hamamatsu.com absolute maximum ratings (ta=25 c) parameter symbol condition value unit forward current i f 80 ma reverse voltage v r 5v pulse forward current i fp pulse width=10 s duty ratio=1% 1.0 a operating temperature topr -30 to +85 c storage temperature tstg -40 to +100 * c * guaranteed to resist temperature cycle test of up to 5 cycles note: exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. always be sure to use the product within the absolute maximum ratings. applications optical switches automatic control systems mark sensors optical remote control high radiant output power high reliability and long life direct modulation possible features electrical and optical characteristics (ta=25 c) parameter symbol condition min. typ. max. unit peak emission wavelength pi f =50 ma 870 890 920 nm spectral half width ? i f =50 ma -8 0- nm forward voltage v f i f =50 ma - 1.4 1.5 v pulse forward voltage v fp i f =1.0 a - 2.8 3.4 v reverse current i r v r =5 v - - 5 a radiant ux ?e i f =50 ma 8 10 - mw radiant illuminance p e i f =50 ma - 1.0 - mw/cm 2 rise time tr i f =50 ma, 10 to 90% - 0.45 0.7 s fall time tf i f =50 ma, 90 to 10% - 0.45 0.7 s
2 infrared led l1909 emission spectrum forward current vs. forward voltage radiant flux vs. forward current directivity kledb0117eb 700 800 900 1000 0 20 40 60 80 100 wavelength (nm) relative radiant output (%) (typ. ta=25 c, i f =50 ma) kledb0120eb kledb0121ea 1.0 1.5 2.0 2.5 3.0 1 10 100 1000 forward voltage (v) forward current (ma) (typ. ta=25 c, tw=100 s, 1%) kledb0118ea relative radiant output (%) (typ. ta=25 c) 80% 40% 60% 20% 20 10 0 10 20 90 80 50 40 30 70 60 90 80 50 40 30 70 60 100 % 1 10 100 1000 0.1 1 10 100 1000 forward current (ma) radiant flux (mw) (typ. ta=25 c, tw=100 s, 0.1%)
3 infrared led l1909 allowable forward current vs. duty ratio radiant output vs. ambient temperature allowable forward current vs. ambient temperature kledb0038eb 0.01 duty ratio (%) allowable forward current (a) 0.01 0.1 1 10 100 0.1 1 10 pulse width=1 s (ta=25 c) pulse width=100 s pulse width=10 s ambient temperature (c) relative radiant output (db) (typ. i f =50 ma) -40 -20 0 20 40 60 80 100 -5 -4 -2 0 -3 -1 +1 +3 +2 -40 -20 0 20 40 60 80 100 0 40 60 80 100 ambient temperature (c) relative allowable forward current (%) 20 kledb0150ea kledb0027ec
infrared led l1909 cat. no. kled1014e02 nov. 2015 dn 4 www.hamamatsu.com 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, bridgewater, n.j. 08807, u.s.a., telephone: (1) 908-231-0960, fax: (1) 908-23 1-1218 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: torshamnsgatan 35 16440 kista, sweden, telephone: (46) 8-509-031-00, fax: (46) 8-5 09-031-01 italy: hamamatsu photonics italia s.r.l.: strada della moia, 1 int. 6, 20020 arese (milano), italy, telephone: (39) 02-93581733 , fax: (39) 02-93581741 china: hamamatsu photonics (china) co., ltd.: b1201, jiaming center, no.27 dongsanhuan beilu, chaoyang district, beijing 100020 , china, telephone: (86) 10-6586-6006, fax: (86) 10-6586-2866 product specifications are subject to change without prior notice due to improvements or other reasons. this document has been carefully prepared and the information contained is believed to be accurate. in rare cases, however, there may be inaccuracies such as text errors. before using these products, always contact us for the delivery specification sheet to check the latest specifications. the product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. however, even if within the warranty period we accept absolutely no liability for any loss caused by natural d isasters or improper product use. copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission. information described in this material is current as of november, 2015. dimensional outline (unit: mm) related information precautions ? disclaimer ? metal, ceramic, plastic products www.hamamatsu.com/sp/ssd/doc_en.html 1.12 0.1 clear epoxy resin ?5.4 0.1 ?4.2 0.1 ?0.45 lead ?2.54 0.2 2.3 0.3 13.5 common to case kleda0009ed
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