purdy electronics corporation ? 720 palomar avenue ? sunnyvale, ca 94085 tel: 408.523.8200 ? fax: 408.733.1287 ? sales@purdyelectronics.com ? www.purdyelectronics.com 6/12/07 AND191CRP ultra bright led lamps: type 1 weight: 1.0 g unit: mm AND191CRP gaalas red light emission t-3 package (10 mm) features ? double hetero structure gaaias led ? peak wavelength ( p = 660 nm) high bright emission ? all plastic mold type, milky diffused lens ? low drive current, (forward current = 1 to 20 ma) ? excellent on-off contrast ratio ? fast response time, capable of pulse operation ? high power luminous intensity ? suitable for outdoor message signboards ? rohs compliant maximum ratings (t a = 25c) characteristics symbol rating unit forward current i f 50 ma reverse voltage v r 4v power dissipation p d 125 mw operating temperature range t opr -20 to 85 c storage temperature range t stg -30 to 100 c precaution please be careful of the following: 1. soldering temperature: 260c max soldering time: 3 sec. max soldering portion of lead: up to 2 mm from the body of the device 2. the lead can be formed up to 5 mm from the body of the device without forming stress. soldering should be performed after the lead forming. electro-optical characteristics (t a = 25c) characteristics symbol test condition minimum typical maximum unit forward voltage v f i f = 20 ma C2.12.5 v reverse current i r v r = 4 v C C 50 a luminous intensity i v i f = 20 ma 180 600 C mcd peak emission wavelength l p i f = 20 ma C 660 C nm spectral line half width ? i f = 20 ma C15Cnm dominant wavelength d i f = 20 ma C 640 C nm full viewing angle i v = 1/2 peak C 20 C degree product specifications contained herein may be changed without prior notice. it is therefore advisable to contact purdy electronics before proceeding with the design of equipment incorporating this produc t.
AND191CRP gaalas red light emission ultra bright led lamps: type 1 purdy electronics corporation ? 720 palomar avenue ? sunnyvale, ca 94085 tel: 408.523.8200 ? fax: 408.733.1287 ? sales@purdyelectronics.com ? www.purdyelectronics.com 6/12/07 i v ? v f forward current i f (ma) relative luminous intensity i v 12 51020 50 0.1 0.2 0.5 1 2 5 -20 0 20 40 60 80 0.1 0.3 0.5 1 3 i v ?t c case temperature t c (c) relative luminous intensity i f ?t a ambient temperature t a (c) allowable forward current i f (ma) 0 20 40 60 80 100 0 20 40 60 80 600 620 640 660 680 700 720 0 0.2 0.4 0.6 0.8 1.0 relative luminous intensity ?wavelength wavelength (nm) relative luminous intensity i f = 20 ma t a = 25c radiation pattern 90 80 70 60 50 40 30 20 10 0 10 20 30 40 50 60 70 80 90 0.2 0 0.4 0.8 0.6 1.4 1.5 1.6 1.7 1.8 1.9 2.0 1 3 5 10 30 50 i f ?v f forward voltage v f (v) forward current i f (ma) t a = 25c
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