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lite-on technology corporation property of lite-on only features * high intensity. * popular t-1 3/4 diameter package. * selected minimun intensities. * general purpose leads. * reliable and rugged. package dimensions part no. lens source color LTL-4238-041 water clear green notes: 1. all dimensions are in millimeters (inches). 2. tolerance is ? 0.25mm(.010") unless otherwise noted. 3. protruded resin under flange is 1.0mm(.04") max. 4. lead spacing is measured where th e leads emerge from the package. 5. specifications are subject to change without notice. part no. : LTL-4238-041 page : 1 of 8 bns-od-c131/a4
lite-on technology corporation property of lite-on only absolute maximum ratings at t a =25
parameter maximum rating unit power dissipation 100 mw peak forward current (1/10 duty cycle, 0.1ms pulse width) 120 ma continuous forward current 30 ma derating linear from 50
0.4 ma/
reverse voltage 5 v operating temperature range -55
to + 100
storage temperature range -55
to + 100
lead soldering temperature [1.6mm(.063") from body] 260
for 5 seconds part no. : LTL-4238-041 page : 2 of 8 bns-od-c131/a4
lite-on technology corporation property of lite-on only electrical / optical characteristics at t a =25
parameter symbol min. typ. max. unit test condition luminous intensity i v 29 90 mcd i f = 10ma note 1,4 viewing angle 2 1/2 16 deg note 2 (fig.6) peak emission wavelength ? p 568 nm measurement @peak (fig.1) dominant wavelength ? e 568 573 578 nm note 3 spectral line half-width ? 30 nm forward voltage v f 2.1 2.6 v i f = 20ma reverse current i r 100 ? a v r = 5v capacitance c 35 pf v f = 0 , f = 1mhz note: 1. luminous intensity is measured with a light sensor and filter combination that approximates the cie (commission intern ational de l'eclairage) eye-response curve. 2. 1/2 is the off-axis angle at which the luminous in tensity is half the axial luminous intensity. 3. the dominant wavelength, ? e is derived from the cie chromaticity diagram and represents the single wavelength which defines the color of the device. 4. the iv guarantee should be added ? 15%. part no. : LTL-4238-041 page : 3 of 8 bns-od-c131/a4
lite-on technology corporation property of lite-on only typical electrical / optical characteristics curves (25
ambient temperature unless otherwise noted) part no. : LTL-4238-041 page : 4 of 8 bns-od-c131/a4
lite-on technology corporation property of lite-on only features * compatible with radial lead automatic insertion equipment. * most radial lead plastic lead lamps available packaged in tape and reel. * 5mm (0.197") formed lead and 2.54mm (0.1") straight lead spacing available. * reel packaging simplifies handling and testing. package dimensions specification item symbol minimum maximum mm inch mm inch tape feed hole diameter d 3.8 0.149 4.2 0.165 component lead pitch f 4.8 0.188 5.8 0.228 front to rear deflection ? h -- -- 2.0 0.078 height of seating plane h 15.5 0.610 16.5 0.649 feed hole to bottom of component h1 21.5 0.846 23.5 0.925 feed hole to overall component height h2 29.8 1.173 32.4 1.276 lead length after component height l w0 11.0 0.433 feed hole pitch p 12.4 0.488 13.0 0.511 lead location p1 3.15 0.124 4.55 0.179 center of component location p2 5.05 0.198 7.65 0.301 total tape thickness t -- -- 0.90 0.035 feed hole location w0 8.5 0.334 9.75 0.384 adhesive tape width w1 12.5 0.492 13.5 0.531 adhesive tape position w2 0 0 3.0 0.118 tape width w3 17.5 0.689 19.0 0.748 part no. : LTL-4238-041 page : 5 of 8 bns-od-c131/a4
lite-on technology corporation property of lite-on only cautions 1. application the leds described here are intended to be used fo r ordinary electronic equipment (such as office equipment, communication equipment and household applications).consult liteon?s sales in advance for information on applications in which exceptional reliability is required, particularly when the failure or malfunction of the leds may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical and life support systems and safety devices). 2. storage the storage ambient for the leds should not exceed 30c temperature or 70% relative humidity. it is recommended that leds out of their origin al packaging are used within three months. for extended storage out of their original packagi ng, it is recommended that the leds be stored in a sealed container with appropriate desiccan t or in desiccators with nitrogen ambient. 3. cleaning use alcohol-based cleaning solvents such as is opropyl alcohol to clean the leds if necessary. 4. lead forming & assembly during lead forming, the leads should be bent at a point at least 3mm from the base of led lens. do not use the base of the leadframe as a fulcrum during forming. lead forming must be done before soldering, at normal temperature. during assembly on pcb, use minimum clinch force possible to avoid excessive mechanical stress. 5. soldering when soldering, leave a minimum of 2mm clearance from the b ase of the lens to the soldering point. dipping the lens into the solder must be avoided. do not apply any external stress to the lead frame dur ing soldering while the led is at high temperature. recommended soldering conditions : soldering iron wave soldering temperature soldering time 300c max. 3 sec. max. (one time only) pre-heat pre-heat time solder wave soldering time 100c max. 60 sec. max. 260c max. 10 sec. max. note: excessive soldering temperature and/or time mi ght result in deformation of the led lens or catastrophic failure of the led. ir reflow is not suitable process for through hole type led lamp product. part no. : LTL-4238-041 page : 6 of 8 #/40%$"
lite-on technology corporation property of lite-on only 6. drive method an led is a current-operated device. in orde r to ensure intensity uniformity on multiple leds connected in parallel in an application, it is recommended that a current limiting resistor be incorporated in the drive circuit, in seri es with each led as shown in circuit a below. circuit model a circuit model b led led (a) recommended circuit (b) the brightness of each led might app ear different due to the differences in the i-v characteristics of those leds 7. esd (electrostatic discharge) static electricity or power surge will damage the led. suggestions to prevent esd damage: ? use a conductive wrist band or anti- electrostatic glove when handling these leds ? all devices, equipment, and machinery must be properly grounded ? work tables, storage racks, etc. should be properly grounded ? use ion blower to neutralize the static charge which might have built up on surface of the leds plastic lens as a result of friction between leds during storage and handing esd-damaged leds will exhibit abnormal characteris tics such as high reverse leakage current, low forward voltage, or ?no light up? at low currents. to verify for esd damage, check for ?light up? and vf of the suspect leds at low currents. the vf of ?good? leds should be >2.0v@0.1m a for ingan product and >1.4v@0.1ma for alingap product. part no. : LTL-4238-041 page : 7 of 8 #/40%$"
lite-on technology corporation property of lite-on only suggested checking list : training and certification 1. everyone working in a static-safe area is esd-certified? 2. training records kept and re-certification dates monitored? static-safe workstation & work areas 1. static-safe workstation or work-areas have esd signs? 2. all surfaces and objects at all static-safe workstation and within 1 ft measure less than 100v? 3. all ionizer activated, positioned towards the units? 4. each work surface mats grounding is good? personnel grounding 1. every person (including visitors) handling esd sens itive (esds) items wear wrist strap, heel strap or conductive shoes with conductive flooring? 2. if conductive footwear used, conductive floor ing also present where operator stand or walk? 3. garments, hairs or anything closer than 1 ft to esd items measure less than 100v*? 4. every wrist strap or heel strap/conductive s hoes checked daily and resu lt recorded for all dls? 5. all wrist strap or heel strap checkers calibration up to date? note: *50v for blue led. device handling 1. every esds items identified by eia-471 labels on item or packaging? 2. all esds items completely inside properly closed static-shielding containers when not at static-safe workstation? 3. no static charge generators (e.g. plasti cs) inside shielding containers with esds items? 4. all flexible conductive and dissipative packag e materials inspected before reuse or recycle? others 1. audit result reported to entity esd control coordinator? 2. corrective action from previous audits completed? 3. are audit records complete and on file? 8. others white led is materialized by combining blue led and phosphors. color of white led is changed a littl e by an operating current. the appearance and specifications of the product may be modified for improvement, without prior notice. part no. : LTL-4238-041 page : 8 of 8 bns-od-c131/a4

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