february 2008 / c page 1 semiconductor tak cheong ? 500 mw ll-34 hermetically sealed glass fast switching diodes absolute maximum ratings t a = 25c unless otherwise noted symbol parameter value units p d power dissipation 500 mw t stg storage temperature range -65 to +150 c t j operating junction temperature +175 c w iv working inverse voltage 75 v i o average rectified current 150 ma i fm non-repetitive peak forward current 450 ma i fsurge peak forward surge current (pulse width = 1.0 second) 2 a these ratings are limiting values above which the serviceability of the diode may be impaired. specification features: ? fast switching device (t rr <4.0 ns) ? ll-34 (mini-melf) package ? surface device type mounting ? hermetically sealed glass ? compression bonded construction ? all external surfaces are corrosion resistant and terminals are readily solderable ? rohs compliant ? matte tin (sn) terminal finish ? color band indicates negative polarity electrical characteristics t a = 25c unless otherwise noted limits symbol parameter test condition min max unit b v breakdown voltage i r =5a 75 volts i r reverse leakage current v r =50v 50 na v f forward voltage i f =50ma 1 volts t rr reverse recovery time i f =i r =10ma r l =100 ? i rr =1ma 4 ns c capacitance v r =0v, f=1m hz 2 pf cathode anode electrical symbol TCLL4151 device marking diagram cathode band color : black surface mount ll34
february 2008 / c page 2 semiconductor tak cheong ? package outline package case outline ll34 ll-34 millimeters inches dim min max min max a 3.302 3.505 0.130 0.138 b 1.397 1.499 0.055 0.059 c 0.350 0.500 0.014 0.020 notes: 1. all dimensions are within do213ac jedec standard. 2. ll-34 polarity denoted by cathode band. this datasheet presents technical data of tak cheong?s switching diodes . complete specifications for the individual devices are provided in the form of datasheets. a comprehensive selector guide is included to simplify the task of choosing the best set of components required for a specific application. for additional information, please visit our website http://www.takcheong.com . although information in this datasheet has been carefully checked, no responsibility for the inaccuracies can be assumed by tak cheong. please consult your nearest tak cheong?s sales office for further assistance. tak cheong reserves the right to make changes without further notice to any products herein to further improve reliability, function or design, cost and productivity. and are registered trademarks of tak cheong electronics (holdings) co., ltd. tak cheong ? b c a
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