sst a28 / mmst a 28 t r ansistors rev . a 1/2 npn general purpose transistor sst a28 / mmst a 28 z f eatu r es 1) bv c es < 80v (ic= 100 a) z packag e, markin g an d p ackag in g sp ecificatio n s part no. ssta28 sst3 rat t116 3000 mmsta2 8 smt3 rat t146 3000 packaging type marking code basic ordering unit (pieces) z a b so lu te maximu m ratin g s (t a= 25 c) parameter symbol v cbo v ceo v ebo i c tj tstg p c limits 80 80 12 0.3 150 ? 55 to +150 0.2 unit v v v a w c c collector-base voltage collector-emitter voltage emitter-base voltage collector current collector power dissipation junction temperature storage temperature z ex te r n a l dime ns ions (unit : mm) ssta28 mmsta28 rohm : sst3 jedec : sot-23 rohm : smt3 eiaj : sc-59 jedec : sot-346 (1) emitter (2) base (3) collector (1) emitter (2) base (3) collector 0~0.1 0.2min. 2.4 0.2 1.3 0.95 0.450.1 0.15 0.4 2.90.2 1.90.2 0.95 0.95 + 0.2 ? 0.1 ? 0.1 +0.2 +0.1 ? 0.06 +0.1 ? 0.05 (2) (1) (3) 0~0.1 2.8 0.2 1.6 0.3min. 1.1 0.80.1 0.15 0.4 2.90.2 1.90.2 0.95 0.95 + 0.2 ? 0.1 ? 0.1 +0.2 +0.1 ? 0.06 +0.1 ? 0.05 (2) (1) (3) all terminals have same dimensions all terminals have same dimensions z electrical ch aracteristics (t a= 25 c) parameter symbol min. typ. max. unit conditions bv cbo bv ebo c o b bv ces i cbo i ebo i ces 80 80 ? ? ? ? ? ?? ? ? ? ? ? 0.1 0.1 0.5 v v v a a a i c = 100 a i c = 100 a i e = 10 a v cb = 60v v eb = 10v v ce = 10v ? v be(on) ? 1.4 ? 5.0 8.0 2.0 v v ce(sat) 1 v ce(sat) 2 ? 0.7 1.2 v ? 0.8 1.5 v i c /i b = 10ma/10 a i c /i b = 100ma/0.1ma v ce /i b = 5v/100ma v ce = 5v , i c = 10ma h fe 10000 ? ? ? v ce = 5v , i c = 100ma 10000 ? f t 125 200 ? mhz v ce = 5v , i e = 10ma , f = 100mhz v cb = 10v , i e = 0 , f = 1mhz collector-base breakdown voltage collector-emitter breakdown voltage collector cutoff current base-emitter saturation voltage collector-emitter saturation voltage dc current transfer ratio transition frequency emitter-base breakdown voltage 12 output capecitance pf
sst a28 / mmst a 28 t r ansistors rev . a 2/2 z electrical ch aracteristic cu rv es 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 0 400 450 300 350 200 250 150 100 50 500 2.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 i b =0 a ta=25 c i c -collector current ( ma) v ce -collector-emitter voltage ( v) fig.1 grounded emitter output characteristics 0 80 90 60 70 40 50 30 20 10 100 5 .0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 i b =0 a ta=25 c i c -collector current ( ma) v ce -collector-emitter voltage ( v) fig.2 typical output characteristic s 1.4 1.6 1.2 1.0 0.8 0.6 0.4 0.2 1 2 5 1 0 2 0 5 0 100 200 500 100 0 2k 5k 10k 20k 50k 100k 200k h fe -dc current gain i c -collector current ( ma) ta=25 c v ce=5v 3v 1v fig.3 dc current gain vs. collector current ( ? ) 1 2 5 1 0 2 0 5 0 100 200 500 100 0 2k 5k 10k 20k 50k 100k 200k h fe -dc current gain i c -collector current ( ma) v ce =5v fig.4 dc current gain vs. collector current ta=25 c 25 c ? 40 c 1 2 5 1 0 2 0 5 0 100 200 500 100 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 v ce(sat) collector emitter saturation voltage (v) i c -collector current ( ma) fig.5 collecor emitter saturation voltage vs collector current ta= ? 40 c 25 c 125 c ic/i b =1000 1 2 5 1 0 2 0 5 0 100 200 500 100 0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 v ce(sat) collector emitter saturation voltage (v) i c -collector current ( ma) fig.6 base emitter saturation voltage vs collector current ta= ? 40 c 25 c 125 c ic/i b =1000 1 2 5 1 0 2 0 5 0 100 200 500 100 0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 v be(on) base emitter voltage (v) i c -collector current ( ma) fig.7 base emitter "on" voltage vs collector current ta= ? 40 c 25 c 125 c v ce =5v 0.5 1 2 5 10 20 5 0 2 20 10 5 100 50 1 capacitance ( pf) reverse bias voltage ( v) cib cob fig.8 capacitance vs reverse bias voltage f=1mhz ta=25 c 1 10 100 100 0 100 200 500 1000 10 20 50 current gain-bandwidth product ( mhz) i c -collector current ( ma) ta=25 c v ce =10v fig.9 current gain-bandwdth produc t vs collector current
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.
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