-1- [ utz - sc0331 _2 ] 2012/10/02 violet laser diode NDV4916E engineering sample features outline dimension ? optical output power: cw120mw ? peak wavelength: 410-420nm ? can type: 5.6 floating mounted with photo diode and zener dio de absolute maximum ratings item symbol absolute maximum ratings unit optical output power po 140 mw allowable reverse current ir (ld) 85 ma pd reverse voltage vr (pd) 5 v storage temperature tstg -40 ~ 85 c operating case temperature tc -10 ~ 30 c initial electrical/optical characteristics (tc=25 c) item condition symbol min typ. max unit optical output power cw po - - 120 mw peak wavelength po=120mw p 410 - 420 nm threshold current cw ith - 34 50 ma unit (mm) ( ) are reference figures operating current po=120mw iop - 110 150 ma pin connection slope efficiency cw 1.2 1.6 2.0 w/a operating voltage po=120mw vop - 4.7 6.0 v parallel // 7.0 - 12.0 beam divergence* perpendicular po=120mw ? 13.0 - 28.0 parallel ? // -2.0 - 2.0 beam pointing accuracy perpendicular po=120mw ?? -2.5 - 2.5 monitor current** po=120mw im - - 1.0 ma * full angle at 50% from peak intensity this model has a zener diode built in as a protection circuit against static electricity. ** monitor current is short time power reference pu rpose only. not guaranteed for accuracy. all figures in this specification are measured by n ichia's method and may contain measurement deviatio ns. this model is engineering sample for evaluation or design purpose only. life time is not guaranteed. the above specifications are for reference purpose only and subjected to change without prior notice. safety of laser light laser light can damege the human eyes and skin. do not expose the eye or skin to any laser light directly and/or through optical lens. w hen handling the lds, wear appropriate safety glasses to prevent laser light, even any ref lections from entering to the eye. focused laser beam through optical instruments will increas e the chance of eye hazard. these lds are classified in class 4 of iec60825-1 and 21 cfr part 1040.10 safet y standards . it is absolutely necessary to take overall safety measures against user's modules, equipment and systems into which nichia ld s are incorporated and/or integrated. nichia corporation http://www.nichia.co.jp head office p.o.box 6 anan, tokushima-ken 774-8601, japan phone: +81-884-22-2311 fax: +81-884-21-0148 contact tokyo sales office 13f tamachi center building 34-7, shiba 5-chome, mi nato-ku, tokyo 108-0014, japan phone: +81-3-3456-3108 fax: +81-3-5440-7330 x+ (0.4) (90 ) 0.40.1 5 . 6 + 0 - 0 . 0 3 1 2 3 y+ 2.0 0.2 3.550.1 4 0.430.08 1.20.1 0.250.03 glass thickness 6.51.0 4.20.2 1.0 0.1 emitting point z+ (1.3) emitting point reference plane 2.30.2 ( 1 . 6 ) 4
-2- [ utz - sc0331 _2 ] 2012/10/02 typical characteristics 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 forward current [ma] optical output power [mw] tc=0oc tc=25oc 25 30 35 40 45 50 -10 0 10 20 30 case temperature [ o oo o c] threshold current [ma] 0 1 2 3 4 5 6 7 0 20 40 60 80 100 120 140 forward current [ma] forward voltage [v] tc=0oc tc=25oc 410 412 414 416 418 420 422 424 426 -10 0 10 20 30 case temperature [ o oo o c] peak wavelength [nm] -40 -30 -20 -10 0 10 20 30 40 angle [] relative optical intensity // ? 415 416 417 418 419 420 wavelength [nm] relative optical intensity optical output power vs. forward current forward vol tage vs. forward current threshold current vs. case temperature peak waveleng th vs. case temperature far field pattern typical spectrum
-3- [ utz - sc0331 _2 ] 2012/10/02 cautions (1) operating method the ld shall change its forward voltage requirement and optical output power according to temperature change. also, the ld will require more operation current to maintain same output power as it degrades. in order to maintain output power, use of apc (automatic power control) is recommended, wh ich use monitor feedback to adjust the operation cu rrent. confirm that the optical output power generated by spike current when switching on and off does not ex ceed the maximum absolute rating. also, employ appropriate counterm easures to reduce chattering and/or overshooting in the circuit. (2) static electricity static electricity or electrical surges will reduce and degrade the reliability of the lds. it is reco mmended to use a wrist strap or anti-electrostatic glove when handling the product. (3) absolute maximum rating active layer of lds shall have high current density and generate high electric field during its operat ion. in order to prevent excessive damage, the ld must be operated s trictly below absolute max rating. (4) others nichia lds described in this brochure are intended to be used for ordinary electronic equipment (such as office equipment, communications equipment, measurement instruments a nd household appliances). consult nichias sales st aff in advance for information on the applications in which except ional quality and reliability are required, particu larly when the failure or malfunction of the lds may directly jeopardize life or health (such as for airplanes, aerospace, subme rsible repeaters, nuclear reactor control systems, automobiles, traff ic control equipment, life support systems and safe ty devices). the purchaser must acknowledge that any ld can be f ailed statically and must design its equipments fai l safe design. prior to use of the ld, please confirm that the ld, as de scribed in nichias specifications, meets the life expectancy needs of, and provides the features required by the circuit and a ny related modules, equipment and/or systems. nichia prohibit purchaser from reverse engineering, disassembling, or taking any other steps to derive the structure or design of the ld. the appearance and specifications of the product ma y be modified for improvement without notice. the f ormal specifications must be exchanged and signed by both parties before large volume purchase begins. no unauthorized transmission or reproduction of thi s document, either in whole or in part, is permitte d.
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