bc847at, bt, ct npn small signal surface mount transistor features ? epitaxial die construction ? complementary pnp types available (bc857at,bt,ct) ? ultra-small surface mount package ? lead free/rohs compliant (note 2) ? "green" device (note 4 and 5) mechanical data ds30274 rev. 9 - 2 1 of 3 www.diodes.com bc847at, bt, ct ? diodes incorporated ? case: sot-523 ? case material - molded plastic. ul flammability classification rating 94v-0 ? moisture sensitivity: level 1 per j-std-020c ? terminals: solderable per mil-std-202, method 208 ? lead free plating (matte tin finish annealed over alloy 42 leadframe). ? terminal connections: see diagram ? marking code: see table ? ordering information: see page 2 ? marking information: see page 2 ? weight: 0.002 grams (approximate) type marking bc847at 1e bc847bt 1f bc847ct 1m sot-523 dim min max typ a 0.15 0.30 0.22 b 0.75 0.85 0.80 c 1.45 1.75 1.60 d ? ? 0.50 g 0.90 1.10 1.00 h 1.50 1.70 1.60 j 0.00 0.10 0.05 k 0.60 0.80 0.75 l 0.10 0.30 0.22 m 0.10 0.20 0.12 n 0.45 0.65 0.50 0 8 ? all dimensi mm ons in a m j l d maximum ratings @t a = 25c unless otherwise specified characteristic symbol value unit collector-base voltage v cbo 50 v collector-emitter voltage v ceo 45 v emitter-base voltage v ebo 6.0 v collector current i c 100 ma power dissipation (note 1) p d 150 mw thermal resistance, junction to ambient (note 1) r ja 833 c/w operating and storage temperature range t j , t stg -55 to +150 c electrical characteristics @t a = 25c unless otherwise specified characteristic symbol min typ max unit test condition dc current gain (note 3) current gain a b c h fe 110 200 420 ? 290 520 220 450 800 ? v ce = 5.0v, i c = 2.0ma collector-emitter saturation voltage (note 3) v ce(sat) ? ? 250 600 mv i c = 10ma, i b = 0.5ma i c = 100ma, i b = 5.0ma base-emitter saturation voltage (note 3) v be(sat) ? 700 900 ? mv i c = 10ma, i b = 0.5ma i c = 100ma, i b = 5.0ma base-emitter voltage (note 3) v be 580 ? 660 ? 700 770 mv v ce = 5.0v, i c = 2.0ma v ce =5.0v, i c = 10ma collector-emitter cutoff current (note 3) i cbo i cbo ? ? 15 5.0 na a v cb = 30v v cb = 30v, t a = 150c gain bandwidth product f t 100 ? ? mhz v ce = 5.0v, i c = 10ma, f = 100mhz output capacitance c obo ? ? 4.5 pf v cb = 10v, f = 1.0mhz bc847bt noise figure bc847ct nf ? ? 10 4.0 db v ce = 5v, r s = 2.0k , f = 1.0khz, bw = 200hz notes: 1. device mounted on fr-4 pcb, 1 in ch x 0.85 inch x 0.062 inch; pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/ datasheets/ap02001.pdf. 2. no purposefully added lead. 3. short duration pulse test used to minimize self-heating effect. 4. diodes inc.'s "green" policy can be found on our webs ite at http://www.diodes.com /products/lead_free/index.php. 5. product manufactured with date code uo (week 40, 2007) and newer are built with green molding compound. product manufacture d prior to date code uo are built with non-green molding compound and may contain halogens or sb2o3 fire retardants. b c h k g top view c e b n
ds30274 rev. 9 - 2 2 of 3 www.diodes.com bc847at, bt, ct ? diodes incorporated 0 100 150 50 200 250 01 2 0 2 0 0 1 10 100 1,000 1.0 10 100 0.1 0.01 h d v = 5v ce p , p o we r d issi p a t i o n (mw) d t , ambient temperature (c) fig. 1, power derating curve a t = 100c a n t = 25c a g ai 40 80 160 c c u r r e n t t = -50c a fe, i , collector current (ma) fig. 2, dc current gain vs collector current c 10 100 1,000 0.1 1.0 10 100 f, g ain bandwid t h p r o d u c t (m h z) t i , collector current (ma) fig. 4, gain bandwidth product vs collector current c t = 25c a v = 10v ce v = 5v ce v = 2v ce 0 0.1 0.2 0.3 0.4 0.5 0.1 1.0 10 100 v, c o lle c t o r sa t u r a t i o n v o l t a g e (v) ce(sat) i , collector current (ma) fig. 3, collector saturation voltage vs collector current c ordering information (note 4) device packaging shipping bc847at-7-f sot-523 3000/tape & reel BC847BT-7-f sot-523 3000/tape & reel bc847ct-7-f sot-523 3000/tape & reel notes: 4. for packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. marking information xxym xx = product type marking code (see page 1), e.g. 1e = bc847at ym = date code marking y = year (ex: n = 2002) m = month (ex: 9 = september) date code key year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 code j k l m n p r s t u v w x y z month jan feb mar apr may jun jul aug sep oct nov dec code 1 2 3 4 5 6 7 8 9 o n d
ds30274 rev. 9 - 2 3 of 3 www.diodes.com bc847at, bt, ct ? diodes incorporated important notice diodes incorporated and its subsidiaries rese rve the right to make modifications, enhanc ements, improvements, corrections or ot her changes without further notice to any product herein. diodes incorporat ed does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its paten t rights, nor the rights of others. the user of products in such applications shall assume all risks of such use and will agree to hold diodes inco rporated and all the companies whose products ar e represented on our website, harmless against all damages. life support diodes incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the president of diodes incorporated.
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