! SIEMENS Small Signal Semiconductors ! BFS481 ! Si NPN RF Bipolar Junction Transistor in SOT363 ! VCE = 8 V IC = 3 mA ! Common Emitter S-Parameters: October 1994 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9164 -1.1 8.927 178.7 0.0012 77.0 0.9923 -0.5 0.020 0.9210 -2.3 8.860 177.7 0.0026 85.6 0.9922 -1.0 0.030 0.9178 -3.4 8.871 177.1 0.0040 89.0 0.9918 -1.4 0.050 0.9193 -6.0 8.906 175.3 0.0063 87.0 0.9916 -2.4 0.100 0.9087 -11.7 8.837 170.1 0.0121 85.4 0.9854 -4.8 0.150 0.8946 -17.2 8.744 164.8 0.0183 80.5 0.9759 -7.0 0.200 0.8759 -22.8 8.545 160.0 0.0244 77.9 0.9619 -9.1 0.250 0.8553 -28.1 8.377 155.4 0.0294 74.8 0.9479 -11.1 0.300 0.8252 -33.3 8.138 150.4 0.0345 71.8 0.9300 -13.0 0.400 0.7702 -43.0 7.680 142.2 0.0434 68.1 0.8917 -16.1 0.500 0.7121 -51.6 7.130 134.6 0.0511 64.4 0.8541 -18.7 0.600 0.6558 -59.7 6.610 127.9 0.0579 61.7 0.8169 -20.5 0.700 0.5985 -67.4 6.071 122.0 0.0633 59.6 0.7844 -22.0 0.800 0.5522 -73.7 5.693 116.7 0.0681 58.0 0.7547 -23.2 0.900 0.5073 -80.2 5.282 111.9 0.0725 56.9 0.7296 -24.2 1.000 0.4716 -86.7 4.915 107.8 0.0765 56.1 0.7069 -25.0 1.100 0.4382 -92.3 4.586 103.5 0.0801 55.4 0.6881 -25.7 1.200 0.4060 -98.3 4.304 99.8 0.0835 54.8 0.6711 -26.3 1.300 0.3827 -103.8 4.062 96.8 0.0866 55.0 0.6555 -26.9 1.400 0.3572 -109.2 3.821 93.4 0.0903 54.8 0.6431 -27.5 1.500 0.3391 -115.0 3.631 90.4 0.0933 55.0 0.6312 -28.1 1.600 0.3251 -120.3 3.447 87.5 0.0968 55.0 0.6216 -28.6 1.700 0.3145 -125.0 3.293 85.0 0.1001 55.2 0.6117 -29.2 1.800 0.2966 -130.7 3.130 82.1 0.1039 55.4 0.6037 -29.8 1.900 0.2860 -136.0 2.987 79.5 0.1072 55.4 0.5961 -30.5 2.000 0.2794 -140.5 2.873 77.3 0.1110 55.5 0.5907 -31.3 2.200 0.2683 -150.0 2.653 72.5 0.1181 55.8 0.5776 -32.8 2.400 0.2624 -158.9 2.473 68.2 0.1255 56.0 0.5679 -34.5 2.600 0.2570 -168.0 2.315 64.0 0.1340 56.3 0.5580 -36.3 2.800 0.2558 -175.7 2.168 59.7 0.1418 55.9 0.5506 -38.2 3.000 0.2611 176.6 2.053 55.8 0.1502 55.9 0.5427 -40.3 3.200 0.2655 169.8 1.952 52.2 0.1591 55.8 0.5364 -42.6 3.400 0.2732 163.9 1.856 48.4 0.1681 55.5 0.5297 -45.0 3.600 0.2809 157.8 1.780 44.7 0.1776 55.0 0.5230 -47.5 3.800 0.2906 152.8 1.692 41.3 0.1858 54.4 0.5135 -50.2 4.000 0.3010 148.7 1.630 38.1 0.1964 53.9 0.5086 -52.9 4.500 0.3282 140.0 1.489 29.6 0.2209 51.9 0.4943 -60.1 5.000 0.3402 132.2 1.356 21.5 0.2483 49.5 0.4915 -66.6 5.500 0.3431 127.3 1.279 12.8 0.2836 45.1 0.4989 -75.2 6.000 0.3367 120.6 1.204 4.1 0.3176 39.6 0.5069 -83.1 ! ! f Fmin Gammaopt rn/50 ! GHz dB MAG ANG - 0.450 1.40 0.56 17 0.36 0.900 1.50 0.45 35 0.34 1.800 1.85 0.25 82 0.36 ! ! SIEMENS AG Semiconductor Group, Munich