! SIEMENS Small Signal Semiconductors ! BFS481 ! Si NPN RF Bipolar Junction Transistor in SOT363 ! VCE = 2.5 V IC = 1.2 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 0.9591 -0.8 4.085 179.7 0.0012 83.4 0.9972 -0.3 0.020 0.9598 -1.6 4.067 178.8 0.0030 89.0 0.9981 -0.6 0.030 0.9582 -2.5 4.086 178.4 0.0043 89.2 0.9965 -1.0 0.050 0.9580 -4.1 4.117 177.3 0.0068 85.4 0.9966 -1.6 0.100 0.9571 -7.9 4.104 173.7 0.0132 86.6 0.9953 -3.1 0.150 0.9506 -11.9 4.105 170.0 0.0204 82.4 0.9912 -4.6 0.200 0.9443 -15.9 4.066 166.6 0.0269 80.8 0.9866 -6.1 0.250 0.9359 -19.6 4.046 163.5 0.0333 78.8 0.9820 -7.6 0.300 0.9249 -23.5 4.007 159.6 0.0394 76.2 0.9743 -9.0 0.400 0.8970 -31.1 3.930 153.3 0.0517 72.2 0.9575 -11.8 0.500 0.8652 -38.4 3.804 146.9 0.0622 68.2 0.9392 -14.3 0.600 0.8337 -45.2 3.677 141.1 0.0723 64.4 0.9169 -16.7 0.700 0.7930 -52.2 3.511 135.2 0.0803 61.2 0.8948 -18.6 0.800 0.7590 -58.4 3.417 130.0 0.0883 58.3 0.8711 -20.6 0.900 0.7186 -64.9 3.270 124.8 0.0944 55.7 0.8498 -22.3 1.000 0.6887 -70.7 3.125 120.4 0.1002 53.2 0.8282 -23.9 1.100 0.6538 -76.6 2.984 115.3 0.1052 51.0 0.8088 -25.2 1.200 0.6225 -82.6 2.860 111.1 0.1094 48.7 0.7897 -26.6 1.300 0.5930 -88.4 2.753 107.5 0.1124 47.4 0.7717 -27.7 1.400 0.5628 -93.7 2.629 103.3 0.1159 46.1 0.7560 -28.9 1.500 0.5401 -99.2 2.541 99.8 0.1181 45.1 0.7389 -29.9 1.600 0.5158 -104.6 2.445 96.0 0.1206 44.3 0.7277 -30.7 1.700 0.4985 -109.8 2.361 93.1 0.1218 43.5 0.7123 -31.7 1.800 0.4739 -115.1 2.269 89.4 0.1243 42.9 0.7017 -32.5 1.900 0.4601 -120.0 2.180 86.2 0.1266 42.3 0.6924 -33.5 2.000 0.4458 -124.6 2.115 83.4 0.1279 42.0 0.6836 -34.5 2.200 0.4212 -134.2 1.974 77.4 0.1306 41.7 0.6653 -36.4 2.400 0.4048 -143.2 1.862 72.3 0.1334 41.6 0.6519 -38.4 2.600 0.3905 -152.3 1.753 67.3 0.1372 42.4 0.6382 -40.3 2.800 0.3829 -160.3 1.656 62.2 0.1407 42.6 0.6294 -42.5 3.000 0.3771 -168.7 1.574 57.6 0.1445 43.4 0.6198 -44.8 3.200 0.3769 -176.2 1.509 53.2 0.1497 44.3 0.6133 -47.2 3.400 0.3764 176.6 1.440 48.8 0.1552 45.2 0.6067 -49.7 3.600 0.3815 170.2 1.384 44.8 0.1610 46.0 0.6010 -52.5 3.800 0.3855 163.9 1.319 41.0 0.1663 46.8 0.5910 -55.5 4.000 0.3942 158.5 1.273 37.2 0.1742 47.5 0.5878 -58.5 4.500 0.4166 147.1 1.163 28.1 0.1950 48.9 0.5753 -66.8 5.000 0.4285 137.4 1.059 19.9 0.2222 49.5 0.5707 -74.4 5.500 0.4288 130.0 1.000 11.4 0.2618 47.0 0.5772 -84.1 6.000 0.4226 121.3 0.942 3.0 0.3042 42.4 0.5790 -92.9 ! ! SIEMENS AG Semiconductor Group, Munich