bc848bw / bc848b transistors rev.a 1/5 npn general purpose transistor bc848bw / bc848b z features 1) bv ceo minimum is 30v (i c = 1ma) 2) complements the bc858b / bc858bw. z external dimensions (unit : mm) bc848bw rohm : umt3eiaj : sc-70 (1) emitter(2) base (3) collector (1) emitter(2) base (3) collector rohm : sst3 bc848b, bc848c 0~0.1 (2) (1) (3) 0.1~0.4 2.1 0.1 1.25 0.1 0.9 0.1 0.2 0.7 0.1 0.15 0.05 0.3 2.0 0.2 1.3 0.1 0.65 0.65 + 0.1 0 all terminals have same dimensions all terminals have same dimensions 0~0.10.2min. 2.4 0.2 1.3 0.95 0.45 0.1 0.15 0.4 2.9 0.2 1.9 0.2 0.95 0.95 + 0.2 0.1 0.1 + 0.2 + 0.1 0.06 + 0.1 0.05 (2) (1) (3) z absolute maximum ratings (ta=25 c) parameter symbol v cbo v ceo v ebo i c tj tstg limits 3030 5 0.1 0.35 150 65~ + 150 unit vv v a p c 0.20.2 w w w c c collector-base voltagecollector-emitter voltage emitter-base voltage collector current junction temperature bc848bwbc848b storage temperature collector powerdissipation ? when mounted on a 7 5 0.6mm ceramic board. ? z electrical characteristics (ta=25 c) parameter conditions i c = 50 a i c = 1ma i e = 50 a v cb = 30v v cb = 30v, ta = 150 c i c /i b = 100ma/5ma i c /i b = 10ma/0.5ma v ce /i c = 5v/10ma v ce = 5v, i e = 20ma, f = 100mhz v cb = 10v, i e = 0, f = 1mhz v eb = 0.5v, i e = 0, f = 1mhz typ. 200 38 v ce /i c = 5v/2ma symbol bv cbo bv ceo bv ebo i cbo v be(on) v ce(sat) f t cob cib h fe min. 3030 5 0.58 200 max. 100 5 0.77 0.6 0.25 450 unit vv v a na v v mhz pfpf (spec-c22 ) collector-base breakdown voltagecollector-emitter breakdown voltage emitter-base breakdown voltage collector cutoff current base-emitter saturation voltage collector-emitter saturation voltage transition frequencycollector output capacitance collector output capacitance dc current transfer ratio sot-323 sot-23 downloaded from: http:///
bc848bw / bc848b transistors rev.a 2/5 z packaging specifications bc848bw umt3 g1k t106 3000 bc848b sst3 g1k t116 3000 part no. packaging type marking code basic ordering unit (pieces) z electrical characteristic curves 0 8060 40 20 100 2 .0 0 1.0 i b = 0ma 0.1 0.2 0.4 0.6 0.8 1.0 1.2 ta = 25 c i c collector current (ma) v ce collector-emitter voltage (v) fig.1 grounded emitter output characteristics ( ) 0 8.06.0 4.0 2.0 10.0 2 .0 0 1.0 i b = 0 a 5 10 15 20 25 30 35 ta = 25 c i c -collector current (ma) v ce -collector-emitter voltage (v) fig.2 grounded emitter output characteristics ( ) ta = 25 c 0.1 10 1.0 100 100 0 100 1000 10 h fe -dc current gain i c -collector current (ma) v ce = 10v 1v 5v fig.3 dc current gain vs. collector current ( ) v ce =5v 0.1 10 1.0 100 100 0 100 1000 10 h fe -dc current gain i c -collector current (ma) ta = 125 c ta = 25 c ta = 55 c fig.4 dc current gain vs. collector current ( ) downloaded from: http:///
bc848bw / bc848b transistors rev.a 3/5 ta = 25 c v ce = 5v f = 1khz 0.01 1 0.1 10 10 0 100 1000 10 h fe -ac current gain i c -collector current (ma) fig.5 ac current gain vs. collector current ta = 25 c i c /i b = 10 0.1 1.0 10 10 0 0.08 0.180.16 0.12 0.04 0 v ce(sat) collector emitter saturation voltage (v) i c -collector current (ma) fig.6 collector-emitter saturation voltage vs. collector current ta = 25 c i c /i b = 10 0.1 1.0 10 10 0 0.8 1.2 1.81.6 0.4 0 v be(sat) base emitter saturation voltage (v ) i c -collector current (ma) fig.7 base-emitter saturation voltage vs. collector current ta = 25 c v ce = 5v 0.1 1.0 10 100 0.8 1.2 1.81.6 0.4 0 v be(on) base emitter voltage (v) i c -collector current (ma) fig.8 grounded emitter propagation characteristics ta = 25 c i c / i b = 10 1.0 10 10 0 100 1000 10 t on -turn on time (ns) i c -collector current (ma) fig.9 turn-on time vs. collector current ta = 25 c i c /i b = 10 1.0 10 10 0 100 1000 10 t r -rise time (ns) i c -collector current (ma) v cc = 40v fig.10 rise time vs. collector current ta = 25 c i c = 101 b1 = 101 b2 1.0 10 10 0 100 1000 10 t s -storage time (ns) i c -collector current (ma) v ce = 15v 40v 3v fig.11 storage time vs. collector current downloaded from: http:///
bc848bw / bc848b transistors rev.a 4/5 ta = 25 c v cc = 40v i c = 101 b1 = 101 b2 1.0 10 10 0 100 1000 10 t f -fall time (ns) i c -collector current (ma) fig.12 fall time vs. collector current ta = 25 c f = 1mhz 0.5 11 05 0 10 100 1 capacitance (pf) reverse bias voltage (v) cib cob fig.13 input/output capacitance vs. voltage ta = 25 c 0.5 10 100 50 0 5.0 50 0.5 v ce collector-emitter voltage (v) i c -collector current (ma) 400mhz 400mhz 300mhz 200mhz 100mhz 300mhz 200mhz 100mhz fig.14 gain bandwidth product ta = 25 c v ce = 5v 0.5 1.0 10 100 50 0 100 1000 10 current gain-bandwidth product (mhz) i c -collector current (ma) fig.15 gain bandwidth product vs. collector current ta = 25 c v ce = 6v f = 270hz 0.1 11 01 0 0 10 1 100 0.1 h parameter normalized to 1ma i c -collector current (ma) hfe hfe hre hoe hoe hie hie hre i c = 1ma hie = 7.8k ? hfe = 280 hre = 4.5 10 5 hoe = 7.5 s fig.16 h parameter vs. collector current v cb = 30v 0 75 25 50 100 125 15 0 100p 10p 1p 10n 1n 0.1p i cbo -collector cutoff current (a) t a -ambient temperature ( c) fig.17 collector cutoff current ta = 25 c v ce = 5v i c = 100 a r s = 10k ? 10 1k 100 10k 100 k 6 1210 84 2 0 nf noise figure (db) f-frequency (hz) fig.18 noise vs. collector current ta = 25 c v ce = 5v f = 10hz 0.01 0.1 1 10 10k 1k 100k 100 r s -source resistance ( ? ) i c -collector current (ma) 12db 8db 3db 5db nf = 1db fig.19 noise characteristics ( ) downloaded from: http:///
bc848bw / bc848b transistors rev.a 5/5 ta = 25 c v ce = 5v f = 30hz 0.01 0.1 1 1 0 10k 1k 100k 100 r s -source resistance ( ? ) i c -collector current (ma) 12db 8db 3db 5db nf = 1db fig.20 noise characteristics ( ) ta = 25 c v ce = 5v f = 1khz 0.01 0.1 1 1 0 10k 1k 100k 100 r s -source resistance ( ? ) i c -collector current (ma) 12db 8db 3db 5db nf = 1db fig.21 noise characteristics ( ) ta = 25 c v ce = 5v f = 10khz 0.01 0.1 1 1 0 10k 1k 100k 100 r s -source resistance ( ? ) i c -collector current (ma) 8db 3db 5db nf = 1db fig.22 noise characteristics ( ) downloaded from: http:///
appendix appendix1-rev1.1 the products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. notes no technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of rohm co.,ltd. the contents described herein are subject to change without notice. the specifications for the product described in this document are for reference only. upon actual use, therefore, please request that specifications to be separately delivered. application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. rohm co.,ltd. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by rohm co., ltd. is granted to any such buyer. products listed in this document are no antiradiation design. about export control order in japan products described herein are the objects of controlled goods in annex 1 (item 16) of export trade control order in japan. in case of export from japan, please confirm if it applies to "objective" criteria or an "informed" (by miti clause) on the basis of "catch all controls for non-proliferation of weapons of mass destruction. downloaded from: http:///
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