25.09.2013 RLV4212 1 of 3 RLV4212 technical data violet laser diode features ? peak wavelength: 405 nm ? optical output power: 120 mw ? package: 5.6 mm, without photodiode electrical connection pin configuration bottom view pin function 1 ld anode 2 cas e 3 ld cathode absolute maximum ratings (t c =25c) item symbol value unit cw output power p o 100 mw ld reverse voltage v r (ld) 5 v pd reverse voltage v r (pd) 20 v operating case temperature t c - 10 ? +70 c storage temperature t stg - 40 ? +85 c specifications (t c =25c) item symbol min. typ. max. unit optical specifications cw output power p o - - 120 mw peak wavelength * p 400 405 410 nm fwhm beam divergence U 7.0 9.0 12.0 deg 15.0 19.5 23.0 deg emission point accuracy angle ? U - 2.0 - 2.0 deg ? - 2.5 - 2.5 deg electrical specifications threshold current i th - 35 50 ma operating current i op - 120 150 ma slope efficiency 1.2 1.4 1.9 w/a operating voltage u op - 4.8 5.5 v * measuring specifications. not gua ranteed for accuracy. the above specifications are for reference purpose only and subjected to change without prior notice.
25.09.2013 RLV4212 2 of 3 package dimensions 5.6 mm package ( unit:mm )
25.09.2013 RLV4212 3 of 3 safety of laser light ? laser light can damage the human eyes and skin. do not expose the eye or skin directly to any laser light 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 instruments wi ll 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, equipment and systems into which this lds a re incorporated and/or integrated. cautions 1. operating method ? this 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 electrical spike current generated by switching on and off does not exceed the maxim um operating current level specified herein above as absolute maximum 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 degra de the reliability of the lds. it is recommended to use a wrist trap 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 maximum rating.
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