! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 3.5 V IC = 1.2 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 0.9585 -0.7 4.033 179.5 0.0014 87.5 0.9970 -0.4 0.020 0.9583 -1.7 4.078 178.6 0.0030 95.5 0.9999 -0.8 0.050 0.9634 -3.8 4.007 177.0 0.0064 86.8 0.9971 -1.8 0.100 0.9574 -7.7 4.054 173.7 0.0134 84.9 0.9958 -3.7 0.150 0.9582 -12.1 3.994 170.6 0.0195 82.7 0.9941 -5.5 0.200 0.9497 -15.8 3.984 167.2 0.0262 80.3 0.9892 -7.3 0.250 0.9432 -20.0 3.961 164.2 0.0329 77.8 0.9879 -9.2 0.300 0.9370 -23.6 3.934 160.7 0.0389 75.7 0.9786 -10.9 0.400 0.9235 -31.2 3.832 154.6 0.0507 70.6 0.9667 -14.3 0.500 0.9015 -39.1 3.786 148.3 0.0615 65.7 0.9513 -17.6 0.600 0.8793 -46.1 3.676 142.1 0.0710 61.6 0.9317 -20.7 0.700 0.8580 -53.0 3.531 137.5 0.0800 57.0 0.9125 -23.6 0.800 0.8355 -59.5 3.382 131.9 0.0877 53.3 0.8935 -26.3 0.900 0.8081 -65.8 3.280 127.2 0.0952 49.5 0.8758 -28.8 1.000 0.7863 -72.0 3.170 122.2 0.1011 46.2 0.8556 -31.3 1.100 0.7668 -77.8 3.041 117.9 0.1061 43.1 0.8384 -33.4 1.200 0.7455 -83.5 2.925 113.5 0.1108 40.1 0.8212 -35.8 1.300 0.7261 -89.2 2.810 109.6 0.1148 37.5 0.8046 -37.6 1.400 0.7148 -94.2 2.696 105.5 0.1175 35.0 0.7902 -39.6 1.500 0.6953 -98.8 2.598 101.8 0.1202 32.8 0.7763 -41.4 1.600 0.6798 -103.5 2.490 98.5 0.1227 31.2 0.7653 -43.0 1.700 0.6729 -107.9 2.408 95.0 0.1246 29.1 0.7524 -44.7 1.800 0.6489 -112.7 2.322 91.7 0.1264 27.6 0.7441 -46.2 1.900 0.6444 -116.1 2.242 88.7 0.1274 25.6 0.7348 -47.7 2.000 0.6305 -120.4 2.170 85.2 0.1291 24.4 0.7273 -49.2 2.200 0.6162 -127.1 2.019 79.5 0.1313 21.6 0.7169 -52.3 2.400 0.5960 -133.9 1.884 74.2 0.1313 19.5 0.7028 -55.0 2.600 0.5860 -139.4 1.774 69.2 0.1321 18.0 0.6965 -57.7 2.800 0.5740 -145.4 1.681 64.6 0.1327 16.5 0.6908 -60.4 3.000 0.5669 -151.0 1.583 59.8 0.1328 14.9 0.6873 -63.1 3.500 0.5469 -163.0 1.411 49.0 0.1337 12.9 0.6842 -69.6 4.000 0.5346 -174.3 1.276 39.1 0.1335 11.7 0.6850 -76.5 4.500 0.5237 174.3 1.168 29.7 0.1348 11.3 0.6918 -83.7 5.000 0.5169 164.4 1.066 20.9 0.1367 11.1 0.7017 -91.2 5.500 0.5129 153.6 0.986 11.9 0.1404 12.0 0.7059 -99.1 6.000 0.5146 143.0 0.920 4.3 0.1463 12.8 0.7086 -106.9 ! ! SIEMENS AG Semiconductor Group, Munich