? semiconductor components industries, llc, 2006 january, 2006 ? rev. 4 1 publication order number: bc237/d bc237, bc237b, bc237c, BC239C amplifier transistors npn silicon features ? pb?free packages are available* maximum ratings rating symbol value unit collector ?emitter voltage bc237 bc239 v ceo 45 25 vdc collector ?emitter voltage bc237 bc239 v ces 50 30 vdc collector ?emitter voltage bc237 bc239 v ebo 6.0 5.0 vdc collector current ? continuous i c 100 madc total power dissipation @ t a = 25 c derate above t a = 25 c p d 350 2.8 mw mw/ c total power dissipation @ t a = 25 c derate above t a = 25 c p d 1.0 8.0 w mw/ c operating and storage temperature range t j , t stg ?55 to +150 c thermal characteristics characteristic symbol max unit thermal resistance, junction?to?ambient r ja 357 c/w thermal resistance, junction?to?case r jc 125 c/w 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. *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. device package shipping ? ordering information bc237 to?92 5000 units / bulk bc23xy = device code x = 7 or 9 y = b or c a = assembly location y = year ww = work week = pb?free package marking diagram to?92 case 29 style 17 1 2 3 bc237b to?92 5000 units / bulk bc237g to?92 (pb?free) 5000 units / bulk bc237bg to?92 (pb?free) 5000 units / bulk (note: microdot may be in either location) http://onsemi.com bc23 xy ayww collector 1 2 base 3 emitter bc237brl1 to?92 2000/tape & reel bc237bzl1 to?92 2000/ammo pack bc237brl1g to?92 (pb?free) 2000/tape & reel bc237bzl1g to?92 (pb?free) 2000/ammo pack bc237c to?92 5000 units / bulk bc237cg to?92 (pb?free) 5000 units / bulk ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our t ape and reel packaging specification s brochure, brd8011/d.
bc237, bc237b, bc237c, BC239C 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 bc237 (i c = 2.0 ma, i b = 0) bc239 v (br)ceo 45 25 ? ? ? ? v emitter ?base breakdown voltage bc237 (i e = 100 a, i c = 0) bc239 v (br)ebo 6.0 5.0 ? ? ? ? v collector cutoff current (v ce = 30 v, v be = 0) bc239 (v ce = 50 v, v be = 0) bc237 (v ce = 30 v, v be = 0) t a = 125 c bc239 (v ce = 50 v, v be = 0) t a = 125 c bc237 i ces ? ? ? ? 0.2 0.2 0.2 0.2 15 15 4.0 4.0 na a on characteristics dc current gain (i c = 10 a, v ce = 5.0 v) bc237b bc237c/239c (i c = 2.0 ma, v ce = 5.0 v) bc237 bc237b bc237c/239c (i c = 100 ma, v ce = 5.0 v) bc237b bc237c/239c h fe ? ? 120 200 380 ? ? 150 270 ? 290 500 180 300 ? ? 800 460 800 ? ? ? collector ?emitter on voltage (i c = 10 ma, i b = 0.5 ma) bc237/bc239 (i c = 100 ma, i b = 5.0 ma) bc237/bc239 v ce(sat) ? ? 0.07 0.2 0.2 0.6 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) ? ? 0.6 ? 0.83 1.05 v base?emitter on voltage (i c = 100 a, v ce = 5.0 v) (i c = 2.0 ma, v ce = 5.0 v) (i c = 100 ma, v ce = 5.0 v) v be(on) ? 0.55 ? 0.5 0.62 0.83 ? 0.7 ? v dynamic characteristics current ?gain ? bandwidth product (i c = 0.5 ma, v ce = 3.0 v, f = 100 mhz) bc237 bc239 (i c = 10 ma, v ce = 5.0 v, f = 100 mhz) bc237 bc239 f t ? ? 150 150 100 140 200 280 ? ? ? ? mhz collector?base capacitance (v cb = 10 v, i c = 0, f = 1.0 mhz) c obo ? ? 4.5 pf emitter?base capacitance (v eb = 0.5 v, i c = 0, f = 1.0 mhz) c ibo ? 8.0 ? pf noise figure (i c = 0.2 ma, v ce = 5.0 v, r s = 2.0 k , f = 1.0 khz) bc239 (i c = 0.2 ma, v ce = 5.0 v, r s = 2.0 k , f = 1.0 khz, f = 200 hz) bc237 bc239 nf ? ? ? 2.0 2.0 2.0 4.0 10 4.0 db figure 1.
bc237, bc237b, bc237c, BC239C http://onsemi.com 3 2.0 1.5 1.0 0.2 0.3 0.4 0.6 0.8 200 0.2 0.5 1.0 2.0 5.0 10 20 50 100 i c , collector current (madc) figure 1. normalized dc current gain h fe , normalized dc current gain v ce = 10 v t a = 25 c 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.2 0.1 0.3 0.5 0.7 1.0 2.0 3.0 5.0 7.0 10 20 30 50 70 100 i c , collector current (madc) figure 2. ?saturation? and ?on? voltages v, voltage (volts) t a = 25 c v be(sat) @ i c /i b = 10 v be(on) @ v ce = 10 v v ce(sat) @ i c /i b = 10 400 20 30 40 60 80 100 200 300 0.5 1.0 0.7 2.0 3.0 5.0 7.0 10 20 30 50 i c , collector current (madc) figure 3. current?gain ? bandwidth product f t , current?gain bandwidth product (mhz) c, capacitance (pf) 10 1.0 2.0 3.0 5.0 7.0 0.4 0.6 0.8 1.0 2.0 4.0 6.0 8.0 10 20 40 v r , reverse voltage (volts) figure 4. capacitances v ce = 10 v t a = 25 c t a = 25 c c ib c ob r b , base spreading resistance (ohms) 170 160 150 140 130 120 10 0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 i c , collector current (madc) figure 5. base spreading resistance v ce = 10 v f = 1.0 khz t a = 25 c
bc237, bc237b, bc237c, BC239C http://onsemi.com 4 package dimensions notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. contour of package beyond dimension r is uncontrolled. 4. lead dimension is uncontrolled in p and beyond dimension k minimum. r a p j l b k g h section x?x c v d n n xx seating plane dim min max min max millimeters inches a 0.175 0.205 4.45 5.20 b 0.170 0.210 4.32 5.33 c 0.125 0.165 3.18 4.19 d 0.016 0.021 0.407 0.533 g 0.045 0.055 1.15 1.39 h 0.095 0.105 2.42 2.66 j 0.015 0.020 0.39 0.50 k 0.500 ??? 12.70 ??? l 0.250 ??? 6.35 ??? n 0.080 0.105 2.04 2.66 p ??? 0.100 ??? 2.54 r 0.115 ??? 2.93 ??? v 0.135 ??? 3.43 ??? 1 to?92 (to?226) case 29?11 issue al style 17: pin 1. collector 2. base 3. emitter 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. ?typical? 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 ?typicals? 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 of ficers, employees, subsidiaries, affiliates, 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 bc237/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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