2SC4321 2003-03-19 1 toshiba transistor silicon npn epitaxial planar type 2SC4321 vhf~uhf band low noise amplifier applications low noise figure, high gain. nf = 1.1db, |s 21e | 2 = 13db (f = 1 ghz) maximum ratings (ta 25c) characteristics symbol rating unit collector-base voltage v cbo 20 v collector-emitter voltage v ceo 10 v emitter-base voltage v ebo 1.5 v base current i b 20 ma collector current i c 40 ma collector power dissipation p c 100 mw junction temperature t j 125 c storage temperature range t stg 55~125 c microwave characteristics (ta 25c) characteristics symbol test condition min typ. max unit transition frequency f t v ce 8 v, i c 20 ma 7 10 ghz s 21e 2 (1) v ce 8 v, i c 20 ma, f 1 ghz 10 13 insertion gain s 21e 2 (2) v ce 8 v, i c 20 ma, f 2 ghz 7 db nf (1) v ce 8 v, i c 5 ma, f 1 ghz 1.1 2.5 noise figure nf (2) v ce 8 v, i c 5 ma, f 2 ghz 1.7 db electrical characteristics (ta 25c) characteristics symbol test condition min typ. max unit collector cut-off current i cbo v cb 10 v, i e 0 1 a emitter cut-off current i ebo v eb 1 v, i c 0 1 a dc current gain h fe v ce 8 v, i c 20 ma 50 250 output capacitance c ob 0.65 pf reverse transfer capacitance c re v cb 10 v, i e 0, f 1 mhz (note) 0.45 0.9 pf note: c re is measured by 3 terminal method with capacitance bridge. unit: mm jedec D jeita sc-70 toshiba 2-2e1a weight: 0.006 g (typ.)
2SC4321 2003-03-19 2 marking
2SC4321 2003-03-19 3
2SC4321 2003-03-19 4 s-parameter z o 50 , ta 25c v ce 8 v, i c 5 ma frequency s11 s21 s12 s22 mhz mag ang mag ang mag ang mag ang 200 0.680 49.6 11.448 140.0 0.048 67.0 0.820 28.4 400 0.478 83.2 8.076 116.6 0.073 59.6 0.613 41.1 600 0.353 108.3 5.992 102.7 0.092 59.1 0.495 46.2 800 0.281 129.2 4.711 93.0 0.109 60.1 0.428 48.9 1000 0.240 149.0 3.875 85.8 0.127 61.1 0.389 51.0 1200 0.216 169.1 3.294 79.6 0.146 62.1 0.364 53.3 1400 0.202 175.1 2.876 73.8 0.166 62.6 0.350 55.6 1600 0.194 158.9 2.572 69.0 0.186 62.6 0.339 58.4 1800 0.193 142.9 2.349 64.5 0.207 62.4 0.332 61.7 2000 0.202 130.9 2.128 61.1 0.227 62.3 0.325 65.7 v ce 8 v, i c 20 ma frequency s11 s21 s12 s22 mhz mag ang mag ang mag ang mag ang 200 0.332 83.7 18.406 118.0 0.034 68.8 0.565 38.2 400 0.212 123.3 10.378 100.0 0.057 71.1 0.393 39.9 600 0.173 150.7 7.130 90.7 0.080 73.0 0.336 39.3 800 0.157 175.3 5.442 84.3 0.104 73.0 0.309 39.6 1000 0.161 167.5 4.394 79.1 0.128 72.4 0.295 41.0 1200 0.162 149.7 3.728 74.3 0.152 71.7 0.285 43.2 1400 0.169 138.2 3.240 69.5 0.175 70.5 0.280 46.0 1600 0.177 125.9 2.877 65.7 0.200 68.9 0.278 48.9 1800 0.178 113.5 2.595 61.8 0.223 67.4 0.279 53.0 2000 0.190 104.3 2.352 58.6 0.246 65.8 0.275 57.8
2SC4321 2003-03-19 5
2SC4321 2003-03-19 6
2SC4321 2003-03-19 7 toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the buyer, when utilizing toshiba products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within specified operating ranges as set forth in the most recent toshiba products specifications. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semiconductor devices,? or ?toshiba semiconductor reliability handbook? etc.. the toshiba products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. unintended usage of toshiba products listed in this document shall be made at the customer?s own risk. the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba corporation for any infringements of intellectual property or other rights of the third parties which may result from its use. no license is granted by implication or otherwise under any intellectual property or other rights of toshiba corporation or others. the information contained herein is subject to change without notice. 000707ea a restrictions on product use
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