-1- [ utz-sc0325_3 ] 2013/01/25 violet laser diode ? ? ? ? features ? optical output power: cw 300mw (@tc=25 ? c) ? peak wavelength: 405nm ? can type: ?? 5.6 floating mounted with photo diode and zener diode ? 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 - 5.3 5.8 v beam divergence** parallel po=300mw ? // 8.0 10.0 12.0 ? perpendicular ?? 17.0 19.0 21.0 ? beam pointing accuracy parallel po=300mw ?? // -2.0 - 2.0 ? perpendicular ??? -2.5 - 2.5 ? monitor current*** po=300mw im ? 0.2 - 2.0 ma * refer graph of optical output power vs. case temperature ** full angle at 50% from peak intensity *** monitor current is short tim e power reference purpose only. not guaranteed for accuracy. all figures in this speci fication are measured by nichia's method and ma y contain measurement deviations. the above specificati ons are for reference purpose only and subj ected to change without prior notice. safety of laser light ? laser light can damage the human eyes and skin. do not expose the eye or skin to an y laser light directly and/or through optical lens. when handling the lds, wear appropriate safety glasses to prevent laser light, even any reflections from entering to the eye. focused laser beam through optical in struments will increase the chance of eye hazard. ? these lds are classified in class 4 of iec60825-1 and 21 cfr part 1040.10 safety standards . it is absolutely necessary to take overall safety measures against user's modules, e quipment and systems into which nichia lds are 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, minato-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 12 3 y+ 2.00.2 3.550.1 4 0.430.08 1.20.1 0.250.03 glass thickness 6.51.0 4.20.2 1.00.1 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 1020304050607080 case temperature [ ] optical output power [mw]
-2- [ utz-sc0325_3 ] 2013/01/25 ? ? 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 ? -40 -20 0 20 40 ? [] relative intensity [a.u.] // 400 402 404 406 408 410 wavelength [nm] relative intensity [a.u.] 0 60 120 180 240 300 360 0 30 60 90 120 150 180 210 240 forward curre nt [ma] optical output power [mw] tc = 0oc tc = 25oc tc = 50oc tc = 70oc 0 1 2 3 4 5 6 7 0 30 60 90 120 150 180 210 240 forward curre nt [ma] forward voltage [v] tc = 0oc tc = 25oc tc = 50oc tc = 70oc 395 400 405 410 415 0 10203040506070 case temperature [oc] peak wavelength [nm] 10 15 20 25 30 35 40 45 0 10203040506070 case temperature [oc] threshold current [ma ]
-3- [ utz-sc0325_3 ] 2013/01/25 ? ? 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, which use monitor feedback to adjust the operation current. ? confirm that the optical output power ge nerated by spike current when switching on and off does not exceed the maximum absolute rating. also, employ appropriate countermeasures to reduce chattering and/or overshooting in the circuit. (2) static electricity ? static electricity or electrical surges will reduce and degrade th e reliability of the lds. it is recommended to use a wrist st rap 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 operation. 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 and household appliances). consult nichia?s sales staff in advance for information on the applications in which exceptional quality and reliability are required, particularly when the failure or malfunction of the lds may directly jeopardi ze life or health (such as for airplanes, aerospace, submersibl e repeaters, nuclear reactor control systems, automobile s, traffic control equipment, life support systems a nd safety devices). ? the purchaser must acknowledge that any ld can be failed stati cally and must design its equipments fail safe design. prior to use of the ld, please confirm that the ld, as described in ni chia?s specifications, meets th e life expectancy needs of, and provides the features required by the circuit and any related modules, equipment and/or systems. ? due to its short wavelength and high optical output power, optical depositions on optical path may occur depending on surrounding conditions. appropriate design or countermeasures should be used to avoid optical depositions. ? 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 may be modified for improvement without notice. the formal specifications must be exchanged and signed by both parties before large volume purchase begins. ? no unauthorized transmission or reproduction of this document, either in whole or in part, is permitted.
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