! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 3.5 V IC = 15 mA ! Common Emitter S-Parameters: May 1997 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.5758 -4.0 23.824 177.4 0.0010 78.7 0.9654 -0.9 0.020 0.5732 -8.3 24.208 174.9 0.0025 92.4 0.9733 -2.3 0.050 0.5765 -20.4 23.445 168.5 0.0057 77.4 0.9572 -6.0 0.100 0.5682 -39.6 22.442 157.8 0.0103 74.3 0.9252 -11.7 0.150 0.5591 -57.2 20.851 147.8 0.0143 67.2 0.8779 -16.3 0.200 0.5420 -72.5 19.014 139.5 0.0178 61.8 0.8276 -19.8 0.250 0.5316 -85.3 17.265 132.5 0.0209 58.1 0.7812 -22.3 0.300 0.5269 -96.7 15.767 126.0 0.0230 54.7 0.7379 -24.1 0.400 0.5165 -114.1 13.141 116.5 0.0265 51.8 0.6726 -26.0 0.500 0.5121 -126.9 11.149 109.2 0.0287 48.9 0.6269 -27.2 0.600 0.5094 -136.1 9.633 103.3 0.0310 48.8 0.5951 -27.8 0.700 0.5049 -144.5 8.433 99.0 0.0330 48.4 0.5727 -28.4 0.800 0.5062 -150.9 7.457 94.7 0.0347 49.2 0.5563 -29.0 0.900 0.5010 -156.2 6.737 91.4 0.0369 49.7 0.5447 -29.7 1.000 0.4990 -160.3 6.109 88.2 0.0390 50.3 0.5360 -30.5 1.100 0.5083 -164.0 5.593 85.3 0.0403 51.2 0.5294 -31.4 1.200 0.5019 -167.1 5.156 82.4 0.0433 51.8 0.5241 -32.5 1.300 0.5052 -170.7 4.765 79.9 0.0454 52.3 0.5203 -33.6 1.400 0.5104 -173.9 4.438 77.2 0.0473 52.8 0.5177 -34.8 1.500 0.5072 -175.9 4.156 74.8 0.0496 53.3 0.5156 -36.0 1.600 0.5149 -178.0 3.905 72.8 0.0517 54.1 0.5148 -37.4 1.700 0.5118 179.4 3.693 70.4 0.0541 54.7 0.5129 -38.7 1.800 0.5106 177.3 3.482 68.8 0.0566 55.0 0.5126 -40.1 1.900 0.5140 175.8 3.315 66.5 0.0582 55.1 0.5127 -41.4 2.000 0.5144 174.0 3.160 64.4 0.0611 55.3 0.5135 -42.9 2.200 0.5159 170.2 2.888 60.6 0.0659 55.6 0.5157 -45.8 2.400 0.5181 167.2 2.647 57.0 0.0712 55.5 0.5175 -48.7 2.600 0.5160 164.3 2.459 53.2 0.0759 55.6 0.5205 -51.5 2.800 0.5205 161.1 2.292 50.0 0.0813 55.5 0.5243 -54.4 3.000 0.5194 158.2 2.146 46.3 0.0864 55.2 0.5285 -57.3 3.500 0.5197 151.3 1.864 38.2 0.0998 54.2 0.5394 -64.6 4.000 0.5228 144.3 1.654 29.7 0.1143 52.2 0.5531 -72.0 4.500 0.5246 136.8 1.492 21.4 0.1298 49.8 0.5668 -79.7 5.000 0.5287 129.1 1.347 13.9 0.1453 47.2 0.5824 -87.8 5.500 0.5330 121.7 1.227 5.7 0.1614 44.1 0.5939 -96.0 6.000 0.5388 114.3 1.131 -1.3 0.1784 40.4 0.6032 -104.2 ! ! SIEMENS AG Semiconductor Group, Munich