number: db - 055 jan 20 11 / h page 1 se m ic ond u c tor 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 +1 50 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 rati ngs 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 const ruction ? all e xternal s urfaces a re c orrosion r esistant a nd t erminals a re r eadily s olderable ? rohs compliant ? matte tin (sn) terminal finish ? color band i ndicates n egative p olarity electrical characteristics t a = 25c unless otherwise noted limits symbol parameter test condition min max unit b v breakdown voltage i r =100 a i r =5 a 100 75 volts i r reverse leakage current v r =20v v r =75v 25 5 na a v f forward voltage tcll4448, tcll914b tcll4148, tcll4148 tcll4448, tcll914b i f =5ma i f =10ma i f =100ma 0.62 0.72 1.0 1.0 volts t rr reverse recovery time i f = 10ma, v r = 6v r l =100 ? i rr =1ma 4 ns c capacitance v r =0v, f=1m hz 4 pf cathode anode electrical symbol tcll4148/tcll4448/tcll914b device marking diagram cathode band color : black surface mount ll34
number: db - 055 jan 20 11 / h page 2 se m ic ond u c tor tak cheong ? typical characteristics 0 100 200 300 400 500 0 25 50 75 100 125 150 175 tem perature [ ] pd-power passipation [mw] f = 1mhz ta = 25 0.0 0.5 1.0 1.5 0 5 10 15 20 25 30 vr - reverse voltage [v] total capacitance [pf] ta=25 110 120 130 140 150 160 1 10 100 ir - reverse current [ua] bv - reverse voltage [v] ta=25 0 10 20 30 40 50 60 10 100 vr - reverse voltage [v] ir - leakage current [na] ta=25 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 0.001 0.100 10.000 1000.000 if - forw ard current [ma] vf - forward voltage [mv] 0 200 400 600 800 1000 0.01 0.1 1 10 100 if - forw ard current (m a) vf - forward voltage (mv) ta=125 ta=65 ta=25 ta= -40 figure 3. reverse voltage vs reverse current bv C 1.0ua to 100ua f igure 4. reverse current vs reverse voltage ir C 10v to 100v figure 5. forwar d voltage vs forward current vf C 0.001ma to 800ma figure 6. forward voltage vs ambient temperature vf C 0.01ma to 100ma ( - 40 to +125 deg c) figure 1. power dissipation vs ambient temperature valid provided leads at a distance of 0.8mm from case are kept at ambient temperature figure 2. total capacitance
number: db - 055 jan 20 11 / h page 3 se m ic ond u c tor tak cheong ? package outline package case outline ll34 ll - 34 millimeters inches dim min max min max a 3.30 3. 6 0 0.130 0.1 4 2 b 1. 40 1. 50 0.055 0.059 c 0.35 0.50 0.014 0.020 notes: 1. all dimensions are within do213ac jedec standard. 2. ll - 34 polarity denoted by cathode band. b c a
number: db-100 april 14, 2008 / a disclaimer notice tak cheong ? notice the information presented in this document is for reference only. tak cheong reserves the right to make changes without notice for the specification of the products displayed herein. the product listed herein is designed to be used with ordinary electronic equipment or devices, and not designed to be used with equipment or devices which require high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controlle rs and other safety devices), tak cheong semiconductor co., ltd., or anyone on its behalf, assumes no responsi bility or liability for any damagers resulting from such improper use of sale. this publication supersedes & replaces all information reviously supplied. for additional information, please visit our website http://www.takcheong.com , or consult your nearest tak cheong?s sales office for further assistance.
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