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  MMBTA44 MMBTA44 npn surface mount high voltage transistors hochspannungs-transistoren fr die oberfl?chenmontage npn version 2005-06-21 dimensions / ma?e [mm] 1 = b 2 = e 3 = c power dissipation verlustleistung 250 mw plastic case kunststoffgeh?use sot-23 (to-236) weight approx. ? gewicht ca. 0.01 g plastic material has ul classification 94v-0 geh?usematerial ul94v-0 klassifiziert standard packaging taped and reeled standard lieferform gegurtet auf rolle maximum ratings (t a = 25c) grenzwerte (t a = 25c) MMBTA44 collector-emitter-volt. - kollektor-emitter-spannung b open v ceo 400 v collector-base-voltage - kollektor-basis-spannung e open v cbo 400 v emitter-base-voltage - emitter-basis-spannung c open v ebo 5 v power dissipation ? verlustleistung p tot 250 mw 1 ) collector current ? kollektorstrom (dc) i c 500 ma junction temperature ? sperrschichttemperatur storage temperature ? lagerungstemperatur t j t s -65...+150c -65?+150c characteristics (t j = 25c) kennwerte (t j = 25c) min. typ. max. collector-base cutoff curr ent ? kollektorreststrom i e = 0, v cb = 400 v i cb0 ? ? 100 na collector-emitter cutoff cu rrent ? kollektorreststrom i e = 0, v ce = 400 v i ce0 ??5 a emitter-base cutoff current ? emitterreststrom i c = 0, v eb = 6 v i eb0 ? ? 100 na collector saturation voltage ? kollektor-s?ttigungsspannung 2 ) i c = 10 ma, i b = 1 ma i c = 50 ma, i b = 5 ma v cesat v cesat ? ? ? ? 200 mv 300 mv base saturation voltage ? basis-s?ttigungsspannung 2 ) i c = 10 ma, i b = 1 ma v besat ? ? 750 mv 1 mounted on p.c. board with 3 mm 2 copper pad at each terminal montage auf leiterplatte mit 3 mm 2 kupferbelag (l?tpad) an jedem anschluss 2 tested with pulses tp = 300 s, duty cycle 2% ? gemessen mit impulsen tp = 300 s, schaltverh?ltnis 2% ? diotec semiconductor ag http://www.diotec.com/ 1 2.5 max 1.3 0.1 1.1 2.9 0.1 0.4 1 2 3 type code 1.9
MMBTA44 characteristics (t j = 25c) kennwerte (t j = 25c) min. typ. max. dc current gain ? kollektor-basis-stromverh?ltnis v ce = 10 v, i c = 1 ma v ce = 10 v, i c = 10 ma v ce = 10 v, i c = 100 ma h fe h fe h fe 70 80 60 ? ? ? ? ? ? gain-bandwidth product ? transitfrequenz v ce = 20 v, i c = 10 ma, f = 30 mhz f t 50 mhz ? ? thermal resistance junction ? ambient air w?rmewiderstand sperrschicht ? umgebende luft r tha < 420 k/w 1 ) marking - stempelung MMBTA44 = 3d 1 mounted on p.c. board with 3 mm 2 copper pad at each terminal montage auf leiterplatte mit 3 mm 2 kupferbelag (l?tpad) an jedem anschluss 2 http://www.diotec.com/ ? diotec semiconductor ag [%] p tot 120 100 80 60 40 20 0 [c] t a 150 100 50 0 power dissipation versus ambient temperature ) verlustleistung in abh. von d. umgebungstemp. ) 1 1


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