? semiconductor components industries, llc, 2004 june, 2004 ? rev. 2 1 publication order number: BC857BTT1/d BC857BTT1, bc857ctt1 preferred devices general purpose transistor pnp silicon these transistors are designed for general purpose amplifier applications. they are housed in the sot?416/sc?75 which is designed for low power surface mount applications. features ? pb?free package is available* maximum ratings (t a = 25 c) rating symbol max unit collector?emitter voltage v ceo ?45 v collector?base voltage v cbo ?50 v emitter?base voltage v ebo ?5.0 v collector current ? continuous i c ?100 madc maximum ratings are those values beyond which device damage can occur. maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. if these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. thermal characteristics characteristic symbol max unit total device dissipation, fr?4 board (note 1) t a = 25 c derated above 25 c p d 200 1.6 mw mw/ c thermal resistance, junction?to?ambient (note 1) r ja 600 c/w total device dissipation, fr?4 board (note 2) t a = 25 c derated above 25 c p d 300 2.4 mw mw/ c thermal resistance, junction?to?ambient (note 2) r ja 400 c/w junction and storage temperature range t j , t stg ?55 to +150 c 1. fr?4 @ min pad. 2. fr?4 @ 1.0 1.0 in pad. *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. http://onsemi.com preferred devices are recommended choices for future use and best overall value. collector 3 1 base 2 emitter case 463 sot?416 style 1 marking diagram 3 2 1 xxm xx = device code m = date code see detailed ordering and shipping information in the package dimensions section on page 4 of this data sheet. ordering information
BC857BTT1, bc857ctt1 http://onsemi.com 2 electrical characteristics (t a = 25 c unless otherwise noted) characteristic symbol min typ max unit off characteristics collector ?emitter breakdown voltage (i c = ?10 ma) bc857 series v (br)ceo ?45 ? ? v collector ?emitter breakdown voltage (i c = ?10 a, v eb = 0) bc857b only v (br)ces ?50 ? ? v collector ?base breakdown voltage (i c = ?10 a) bc857 series v (br)cbo ?50 ? ? v emitter ?base breakdown voltage (i e = ?1.0 a) bc857 series v (br)ebo ?5.0 ? ? v collector cutoff current (v cb = ?30 v) collector cutoff current (v cb = ?30 v, t a = 150 c) i cbo ? ? ? ? ?15 ?4.0 na a on characteristics dc current gain (i c = ?10 a, v ce = ?5.0 v) bc857b bc857c (i c = ?2.0 ma, v ce = ?5.0 v) bc857b bc857c h fe ? ? 220 420 150 270 290 520 ? ? 475 800 ? collector ?emitter saturation voltage (i c = ?10 ma, i b = ?0.5 ma) (i c = ?100 ma, i b = ?5.0 ma) v ce(sat) ? ? ? ? ?0.3 ?0.65 v base ?emitter saturation voltage (i c = ?10 ma, i b = ?0.5 ma) (i c = ?100 ma, i b = ?5.0 ma) v be(sat) ? ? ?0.7 ?0.9 ? ? v base ?emitter on voltage (i c = ?2.0 ma, v ce = ?5.0 v) (i c = ?10 ma, v ce = ?5.0 v) v be(on) ?0.6 ? ? ? ?0.75 ?0.82 v small?signal characteristics current ?gain ? bandwidth product (i c = ?10 ma, v ce = ?5.0 vdc, f = 100 mhz) f t 100 ? ? mhz output capacitance (v cb = ?10 v, f = 1.0 mhz) c ob ? ? 4.5 pf noise figure (i c = ?0.2 ma, v ce = ?5.0 vdc, r s = 2.0 k , f = 1.0 khz, bw = 200 hz) nf ? ? 10 db
BC857BTT1, bc857ctt1 http://onsemi.com 3 typical characteristics figure 1. normalized dc current gain i c , collector current (madc) 2.0 figure 2. asaturationo and aono voltages i c , collector current (madc) -0.2 0.2 figure 3. collector saturation region i b , base current (ma) figure 4. base?emitter temperature coefficient i c , collector current (ma) -0.6 -0.7 -0.8 -0.9 -1.0 -0.5 0 -0.2 -0.4 -0.1 -0.3 1.6 1.2 2.0 2.8 2.4 -1.2 -1.6 -2.0 -0.02 -1.0 -10 0 -20 -0.1 -0.4 -0.8 h fe , normalized dc current gain v, voltage (volts) v ce , collector-emitter voltage (v) vb , temperature coefficient (mv/ c) q 1.5 1.0 0.7 0.5 0.3 -0.2 -10 -100 -1.0 t a = 25 c v be(sat) @ i c /i b = 10 v ce(sat) @ i c /i b = 10 v be(on) @ v ce = -10 v v ce = -10 v t a = 25 c -55 c to +125 c i c = -100 ma i c = -20 ma -0.5 -1.0 -2.0 -5.0 -10 -20 -50 -100 -200 -0.1 -0.2 -0.5 -1.0 -2.0 -5.0 -10 -20 -50 -100 i c = -200 ma i c = -50 ma i c = -10 ma figure 5. capacitances v r , reverse voltage (volts) 10 figure 6. current?gain ? bandwidth product i c , collector current (madc) -0.4 1.0 80 100 200 300 400 60 20 40 30 7.0 5.0 3.0 2.0 -0.5 c, capacitance (pf) f, current-gain - bandwidth product (mhz) t t a = 25 c c ob c ib -0.6 -1.0 -2.0 -4.0 -6.0 -10 -20 -30 -40 150 -1.0 -2.0 -3.0 -5.0 -10 -20 -30 -50 v ce = -10 v t a = 25 c t a = 25 c 1.0
BC857BTT1, bc857ctt1 http://onsemi.com 4 figure 7. thermal response figure 8. active region safe operating area v ce , collector-emitter voltage (v) -200 -1.0 i c , collector current (ma) t a = 25 c bonding wire limit thermal limit second breakdown limit 3 ms t j = 25 c -100 -50 -10 -5.0 -2.0 -5.0 -10 -30 -45 -65 -100 1 s bc558 bc557 bc556 the safe operating area curves indicate i c ?v ce limits of the transistor that must be observed for reliable opera- tion. collector load lines for specific circuits must fall be- low the limits indicated by the applicable curve. the data of figure 8 is based upon t j(pk) = 150 c; t c or t a is variable depending upon conditions. pulse curves are valid for duty cycles to 10% provided t j(pk) 150 c. t j(pk) may be calculated from the data in figure 7. at high case or ambient temperatures, thermal limitations will reduce the power that can be handled to values less than the limita- tions imposed by the secondary breakdown. 0.00001 0.0001 0.001 0.01 0.1 1.0 10 100 1000 0.001 0.01 0.1 1.0 r(t), normalized transient thermal resistance t, time (s) single pulse 0.01 0.02 0.05 0.1 0.2 d = 0.5 ordering information device marking package shipping 2 BC857BTT1 3f sot?416 BC857BTT1g 3f sot?416 (pb?free) 3,000 / tape & reel bc857ctt1 3g sot?416 3,000 / tape & reel 2for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifi- cations brochure, brd8011/d.
BC857BTT1, bc857ctt1 http://onsemi.com 5 package dimensions sot?416 (sc?75) case 463?01 issue c dim min max min max inches millimeters a 0.70 0.90 0.028 0.035 b 1.40 1.80 0.055 0.071 c 0.60 0.90 0.024 0.035 d 0.15 0.30 0.006 0.012 g 1.00 bsc 0.039 bsc h ??? 0.10 ??? 0.004 j 0.10 0.25 0.004 0.010 k 1.45 1.75 0.057 0.069 l 0.10 0.20 0.004 0.008 s 0.50 bsc 0.020 bsc notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. m 0.20 (0.008) b ?a? ?b? s d g 3 pl 0.20 (0.008) a k j l c h 3 2 1
BC857BTT1, bc857ctt1 http://onsemi.com 6 on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. atypicalo parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800?282?9855 toll free usa/canada japan : on semiconductor, japan customer focus center 2?9?1 kamimeguro, meguro?ku, tokyo, japan 153?0051 phone : 81?3?5773?3850 BC857BTT1/d literature fulfillment : literature distribution center for on semiconductor p.o. box 61312, phoenix, arizona 85082?1312 usa phone : 480?829?7710 or 800?344?3860 toll free usa/canada fax : 480?829?7709 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : http://onsemi.com order literature : http://www.onsemi.com/litorder for additional information, please contact your local sales representative.
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