-1- [ utz - sc0324_1 ] 2012/10/02 violet laser diode NDV4B16E engineering sample features ? optical output power: cw 300mw (@tc=25 c) ? peak wavelength: 405nm ? 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(tc=25 c)* po 360 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 0 ~ 70 c initial electrical/optical characteristics (tc=25 c) item condition symbol min typ. max unit optical output power* cw po - - 300 mw peak wavelength po=300mw p 400 405 410 nm threshold current cw ith - 33 40 ma operating current po=300mw iop - 230 280 ma slope efficiency cw 1.3 1.6 1.9 w/a operating voltage po=300mw vop - 5.2 5.8 v parallel // 8.0 10.0 12.0 beam divergence** perpendicular po=300mw ? 15.0 20.0 23.0 parallel ? // -2.0 - 2.0 beam pointing accuracy perpendicular po=300mw ?? -2.5 - 2.5 monitor current*** po=300mw im 0.2 - 2.0 ma * refer graph of optical output power vs. case temp erature ** full angle at 50% from peak intensity *** monitor current is short time power reference p urpose only. not guaranteed for accuracy. all figures in this specification are measured by n ichia's method and may contain measurement deviations. 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 di rectly and/or through optical lens. when handling the lds, wear appropria te safety glasses to prevent laser light, even any reflections from entering to the eye. focused laser beam through optical inst ruments will increase 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 modu les, equipment and systems into which nichia lds ar e incorporated and/or integrated. nichia corporation http://www.nichia.co.jp headquarters 491 oka, kaminaka-cho, anan-shi, tokushima 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 outline dimension unit (mm) ( ) are reference figures pin connection this model has a zener diode built in as a protection circuit against static electricity. 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 optical output power vs. case temperature 0 50 100 150 200 250 300 350 400 0 10 20 30 40 50 60 70 80 c ase tem perature [ ] optic al output pow er [m w ]
-2- [ utz - sc0324_1 ] 2012/10/02 typical characteristics optical output power vs. forward current forward voltage vs. forward current threshold current vs. case temperature peak wavelength vs. case temperature far field pattern spectrum 395 400 405 410 415 0 10 20 30 40 50 60 70 case temperature [oc] peak wavelength [nm] 10 15 20 25 30 35 40 45 0 10 20 30 40 50 60 70 case temperature [oc] threshold current [m a] 0 60 120 180 240 300 360 0 30 60 90 120 150 180 210 240 forward current [ma] optical output power [mw] tc = 0oc tc = 25oc tc = 50oc tc = 70oc -40 -20 0 20 40 ? [] relative intensity [a.u.] // ? 0 1 2 3 4 5 6 7 0 30 60 90 120 150 180 210 240 forward current [ma] forward voltage [v] tc = 0oc tc = 25oc tc = 50oc tc = 70oc 400 402 404 406 408 410 wavelength [nm] relative intensity [a.u.]
-3- [ utz - sc0324_1 ] 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 maint ain 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 counter measures to reduce chattering and/or overshooting i n 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 produ ct. (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 strictly 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 exceptiona l quality and reliability are required, particularl y 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, traffic contr ol equipment, life support systems and safety devic es). 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 descr ibed in nichias specifications, meets the life exp ectancy needs of, and provides the features required by the circuit and a ny related modules, equipment and/or systems. due to its short wavelength and high optical output power, optical depositions on optical path may occ ur depending on surrounding conditions. appropriate design or count ermeasures should be used to avoid optical depositi ons. 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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