, li ne. 20 stern ave. springfield, new jersey 07081 2SB643, 2sb644 silicon pnp epitaxial planer type telephone: (973) 376-2922 (212) 227-6005 fax: (973) 376-8960 for low-power general amplification complementary to 2sd638 and 2sd639 ? features ? m type package allowing easy automatic and manual insertion as well as stand-alone fixing to the printed circuit board. ? absolute maximum ratings (ta=25'c) parameter col lector to base voltage collector to emitter voltage 2SB643 2sb644 2SB643 2sb644 emitter to base voltage peak collector current collector current collector power dissipation junction temperature storage temperature symbol vcbo vceo vebo k? k pc tj stg ratings -30 -60 -25 -50 -7 -i -0.5 600 iso -55-+150 unit v v v a a mw ?c ?c unit: mm 2510.1 fl l 1 i ?t f 0.4510.0 l:base 2:collector eiaj:sc-7i 3:emitter m type mold package electrical characteristics (ta=25c) parameter collector cutoff current collector to base voltage collector to emitter voltage 2SB643 2sb644 2SB643 2sb644 emitter to base voltage forward current transfer ratio collector to emitter saturation voltage transition frequency collector output capacitance symbol 'cbo 'ceo vcbo vceo vebo iw hfe2 vce(sal) ft cob conditions vcb = -20v, ie = 0 vce = -20v, ib = 0 ie = ~10ua, ic = 0 vce =-lov, ic = -150ma'2 vce = -10v,lc = -500ma'2 lc = -300ma, ib = -30ma'2 vcb = -10v, ie= 10ma, f= 200mhz vcb = -iov, [e = 0, f= imhz min -30 -60 -25 -50 ?7 85 40 typ 90 -0.35 200 6 max -100 -i 340 -0.6 15 unit na (ia v v v v mhz pf pulse measurement *'hfe| rank classification rank hpei q 85- 170 r 120-240 s 170-340 nj semi-conductors reserves the right to change test conditions, parameter limits and package dimensions without notice. information furnished by nj semi-conductors is believed to be both accurate and reliable at the time of going to press. however, nj semi-conductors assumes no responsibility for any errors or omissions discovered in its use. nj semi-conductors encourages customers to verify that datasheets are current before placing orders. quality semi-conductors
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