?guangdong hottech industrial co.,ltd e-mail:hkt@h eketai.com 1 / 4 he t d1 898 ( npn ) general purpose transistor replacement type : ktd1898 features ? small flat package ? general purpose application maximum ratings (t a = 25c unless otherwise noted) electrical characteristics (t a =25c unless otherwise noted ) parameter symbol test conditions min typ max unit collector-base breakdown voltage v cbo i c =0.1ma,i e =0 100 v collector-emitter breakdown voltage v ceo i c =1ma,i b =0 80 v emitter-base breakdown voltage v ebo i e =0.1ma,i c =0 5 v collector cut-off current i cbo v cb =80v,i e =0 1 ua emitter cut-off current i ebo v eb =4v,i c =0 1 ua dc current gain h fe v ce =3v,i c =500ma 70 400 collector-emitter saturation voltage v ce(sat) i c =500ma, i b =20ma 0.4 v transition frequency f t v ce =10v,i c =50ma f=1mhz 100 mhz output capacitance c ob v ce =10v, i c =50ma ,f=100mhz, 20 pf classification of h fe rank o y gr range 70-140 120-240 200-400 marking zo zy zg parameter symbol value unit collector-base voltage v cbo 100 v collector-emitter voltage v ceo 80 v emitter-base voltage v ebo 5 v collector current-continuous i c 1 a collector power dissipation p c 500 mw thermal resistance from junction t o ambient r ja 250 c/w junction temperature t j 150 c storage temperature t stg -55~+150 c sot-89 1:base 2:collector 3:emitter
?guangdong hottech industrial co.,ltd e-mail:hkt@heketai.com 2 / 4 HETD1898(npn) general purpose transistor typical characteristics 0.1 1 10 1 10 100 1000 0 2 04 06 08 01 0 0 50 100 150 200 250 300 1 10 100 1000 0 100 200 300 400 500 0 25 50 75 100 125 150 0 100 200 300 400 500 600 0.1 1 10 100 1000 0 200 400 600 800 1000 0.1 1 10 100 1000 0 100 200 300 400 0123456 0 200 400 600 800 f=1mhz i e =0 / i c =0 t a =25 o c reverse voltage v (v) capacitance c (pf) v cb / v eb c ob / c ib c ib c ob 200 transition frequency f t (mhz) collector current i c (ma) v ce =10v t a =25 o c i c f t v ce = 3v t a =100 o c t a =25 o c collector current i c (ma) dc current gain h fe i c h fe collector power dissipation p c (w) ambient temperature t a ( ) p c t a collector current i c (ma) base-emitter saturation voltage v besat (mv) t a =25 t a =100 =25 i c v besat t a =25 t a =100 =25 v cesat i c collector-emitter saturation voltage v cesat (mv) collector current i c (ma) 4.5ma 4ma 3ma 3.5ma 2.5ma 5ma 2ma common emitter t a =25 1.0ma 1.5ma i b =0.5ma collector-emitter voltage v ce (v) collector current i c (ma) static characteristic
?guangdong hottech industrial co.,ltd e-mail:hkt@heketai.com 3 / 4 he t d1 898 ( npn ) general purpose transistor sot-89 package outline dimensions symbol d i m e n s i on s i n m i l l i m e t e r s d i m e n s i o n s i n i n c h e s min. max. min. max. a 1.400 1.600 0.055 0.063 b 0.320 0.520 0.013 0.020 b1 0.400 0.580 0.016 0.023 c 0.350 0.440 0.014 0.017 d 4.400 4.600 0.173 0.181 d1 1.550ref. 0.061ref. e 2.300 2.600 0.091 0.102 e1 3.940 4.250 0.155 0.167 e 1.500typ. 0.060typ. e1 3.000typ. 0.118typ. l 0.900 1.200 0.035 0.047
?guangdong hottech industrial co.,ltd e-mail:hkt@heketai.com 4 / 4 he t d1 898 ( npn ) general purpose transistor sot-89 tape and reel dimensionsareinmillimeter type a b c d e f p0 p p1 w sot-89 4.85 4.45 1.85 ? 1.50 1.75 5.50 4.00 8.00 2.00 12.00 tolerance 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 sot-89 tape leader and trailer sot-89 reel dimnsionsareinmillimetere reeloption d d1 d2 g h i w1 w2 7 dia ? 180 60.00 r32.00 r86.50 r30.00 ? 13.00 13.20 16.50 tolerance 2 1 1 1 1 1 1 1 empty pockets empty pockets leader tape components
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