continental device india limited an is/iso 9002 and iecq certified manufacturer npn silicon planar epitaxial rf transistors bf494 BF495 to-92 plastic package hi g h volta g e video transistors absolute maximum ratings(ta=25oc unless specified otherwise) description symbol value units collector emitter voltage v ceo 20 v collector base voltage v cbo 30 v emitter base voltage v ebo 5v collector current (dc) i c 30 ma collector current(peak value) i cm 30 ma total power dissipation up to p tot 300 mw tamb = 25oc mw/oc operating and storage junction t j , t stg -55 to +150 oc temperature range thermal resistance junction to ambient r th(j-a) 420 k/w electrical characteristics (ta=25oc unless otherwise specified) description symbol test condition min max units collector cut- off current i cbo v cb =20v,i e =0 500 na collector cut - off current i cbo v cb =20v,i e =0 ta =150 oc 4.0 emittercut off current i ebo v eb =4v, i c =0 500 na base emitter voltage v be(on) v ce =10v,i c =1ma 0.65 0.74 v dc current gain bf494 h fe * i c =1ma,v ce =10v 67 221 bf494a 200 500 bf494b 110 215 bf 495 35 125 bf 495c 65 135 bf 495d 40 85 is/iso 9002 lic# q sc/l- 000019.2 continental device india limited data sheet page 1 of 4
npn silicon planar epitaxial rf transistors bf494 BF495 to-92 plastic package electrical characteristics (ta=25oc unless specified otherwise) description symbol test condition min max units dynamic characteristics transition frequency f t i c =1ma, v ce =10v 120 mhz feedback capacitance c re v ce =10v, i c =1ma 1.0 pf f=4.5mhz *v be decreases by about 1.7mv/k with increasing temperature. continental device india limited data sheet page 2 of 4
bf494 BF495 to-92 plastic package to-92 transistors on tape and ammo pack to-92 plastic package pin configuration 1. base 2. emitter 3. collector b a l solderability ensured dimension with 'l' uncontrolled beyond 'l' k e d aa sec aa g d 3 2 1 1 2 3 f f h c 3 2 1 all diminsions in mm. dim min. max. a 4.32 5.33 b 4.45 5.20 c 3.18 4.19 d 0.41 0.55 e 0.35 0.50 f5 deg g 1.14 1.40 h 1.14 1.53 2.082 k l 12.70 1.982 ? cumulative pitch error 1.0 mm/20 pitch to be measured at bottom of clinch at top of body t1 0.3 - 0.6 body width body height body thickness pitch of component feed hole pitch feed hole centre to component centre distance between outer leads component alignment tape width hold-down tape width hole position hold-down tape position lead wire clinch height component height length of snipped leads feed hole diameter total tape thickness lead - to - lead distancef1, clinch height pull - out force item a1 a t p po p2 f h w wo w1 w2 ho h1 l do t f2 h2 (p) symbol specification 4.0 4.8 3.9 6n min. 12.7 12.7 6.35 5.08 0 18 6 9 0.5 16 4 2.54 nom. 4.8 5.2 4.2 1 23.25 11.0 1.2 3 max. 1 0.3 0.4 +0.6 -0.2 0.5 0.2 +0.7 -0.5 0.2 0.5 0.2 +0.4 -0.1 tol . remarks notes 1. maximum alignment deviation between leads not to be greater than 0.2 mm. 2. maximum non-cumulative variation between tape feed holes shall not exceed 1 mm in 20 pitches. 3. holddown tape not to exceed beyond the edge(s) of carrier tape and there shall be no exposure of adhesive. 4. no more than 3 consecutive missing components are permitted. 5. a tape trailer, having at least three feed holes are required after the last component. 6 . s pli c e s s hall n o t interfere with the s pr oc ket feed h o le s . all dimensions in mm unless specified otherwise ammo pack s t y le adhesive tape on top side flat side mechanical data t t1 t f1 f2 f p2 po do (p) w2 wo w1 w h1 a a1 p h0 l flat side of transistor and adhesive tape visible 2000 pcs./ammo pack label carrier strip 183 mm 3 3 1 m m f e e d 4 2 m m h h to-92 bulk to-92 t&a 1k/polybag 2k/ammo box 200 gm/1k pcs 645 gm/2k pcs 3" x 7.5" x 7.5" 12.5" x 8" x 1.8" 5k 2k 17" x 15" x 13.5" 17" x 15" x 13.5" 80k 32k 23 kgs 12.5 kgs package net weight/qty details standard pack inner carton box qty outer carton box qty gr wt size size packing detail continental device india limited data sheet page 3 of 4
notes bf494 BF495 to-92 plastic package disclaimer the product information and the selection guides facilitate selection of the cdil's discrete semiconductor device(s) best suited for application in your product(s) as per your requirement. it is recommended that you completely review our data sheet(s) so as to confirm that the device(s) meet functionality parameters for your application. the information furnished in the data sheet and on the cdil web site/cd is believed to be accurate and reliable. cdil however, does not assume responsibility for inaccuracies or incomplete information. furthermore, cdil does not assume liability whatsoever, arising out of the application or use of any cdil product; neither does it convey any license under its patent rights nor rights of others. these products are not designed for use in life saving/support appliances or systems. cdil customers selling these products (either as individual discrete semiconductor devices or incorporated in their end products), in any life saving/support appliances or systems or applications do so at their own risk and cdil will not be responsible for any damages resulting from such sale(s). cdil strives for continuous improvement and reserves the right to change the specifications of its products without prior notic e. cdil is a registered trademark of continental device india limited c-120 naraina industrial area, new delhi 110 028, india. telephone + 91-11-579 6150 fax + 91-11-579 9569, 579 5290 e-mail sales @ cdil.com www.cdil.com continental device india limited data sheet page 4 of 4
|
