! SIEMENS Small Signal Semiconductors ! BFS481 ! Si NPN RF Bipolar Junction Transistor in SOT363 ! VCE = 3.5 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 0.9584 -0.7 4.086 179.7 0.0014 91.2 0.9974 -0.3 0.020 0.9617 -1.5 4.063 178.9 0.0030 85.1 0.9966 -0.6 0.030 0.9599 -2.5 4.072 178.5 0.0040 88.8 0.9959 -0.9 0.050 0.9628 -4.0 4.111 177.3 0.0068 86.4 0.9969 -1.6 0.100 0.9601 -7.9 4.104 173.8 0.0130 86.7 0.9953 -3.1 0.150 0.9509 -11.7 4.105 170.1 0.0198 82.6 0.9915 -4.5 0.200 0.9454 -15.3 4.068 166.8 0.0263 80.8 0.9871 -6.0 0.250 0.9378 -19.3 4.039 163.7 0.0329 78.8 0.9824 -7.5 0.300 0.9246 -23.0 4.000 159.9 0.0387 76.6 0.9752 -8.9 0.400 0.8975 -30.4 3.930 153.7 0.0503 72.5 0.9588 -11.6 0.500 0.8685 -37.6 3.818 147.3 0.0611 68.7 0.9407 -14.1 0.600 0.8390 -44.5 3.686 141.7 0.0708 64.8 0.9193 -16.4 0.700 0.7959 -51.2 3.517 135.8 0.0792 61.7 0.8979 -18.4 0.800 0.7659 -57.5 3.430 130.7 0.0866 58.7 0.8751 -20.3 0.900 0.7242 -63.6 3.286 125.5 0.0932 56.2 0.8547 -22.0 1.000 0.6954 -69.5 3.147 121.0 0.0987 53.8 0.8326 -23.6 1.100 0.6566 -75.5 3.009 116.1 0.1039 51.6 0.8130 -24.9 1.200 0.6251 -81.1 2.878 112.0 0.1080 49.3 0.7939 -26.3 1.300 0.5989 -86.7 2.777 108.3 0.1111 48.0 0.7769 -27.5 1.400 0.5660 -92.1 2.657 104.1 0.1146 46.5 0.7606 -28.6 1.500 0.5429 -97.8 2.565 100.5 0.1166 45.6 0.7440 -29.6 1.600 0.5176 -102.8 2.467 96.9 0.1194 44.6 0.7320 -30.5 1.700 0.5002 -108.0 2.387 93.8 0.1206 43.9 0.7170 -31.4 1.800 0.4768 -113.3 2.293 90.1 0.1234 43.3 0.7071 -32.2 1.900 0.4610 -118.2 2.209 87.0 0.1252 42.8 0.6970 -33.2 2.000 0.4468 -123.2 2.138 84.2 0.1267 42.4 0.6880 -34.2 2.200 0.4213 -132.4 2.000 78.3 0.1294 41.9 0.6700 -36.1 2.400 0.4026 -141.4 1.885 73.1 0.1324 42.1 0.6558 -38.1 2.600 0.3880 -150.3 1.775 68.0 0.1361 42.7 0.6428 -40.0 2.800 0.3769 -158.6 1.676 62.9 0.1396 42.9 0.6333 -42.2 3.000 0.3743 -167.2 1.594 58.3 0.1434 43.7 0.6240 -44.4 3.200 0.3696 -174.8 1.529 53.9 0.1487 44.6 0.6172 -46.7 3.400 0.3711 178.2 1.459 49.6 0.1539 45.4 0.6109 -49.3 3.600 0.3755 171.4 1.400 45.6 0.1597 46.2 0.6046 -52.0 3.800 0.3806 165.1 1.337 41.8 0.1649 47.0 0.5951 -54.9 4.000 0.3887 159.4 1.290 38.0 0.1724 47.8 0.5912 -57.9 4.500 0.4135 148.0 1.176 28.8 0.1930 49.2 0.5794 -66.1 5.000 0.4203 138.2 1.072 20.6 0.2196 49.7 0.5747 -73.6 5.500 0.4249 130.7 1.013 12.0 0.2590 47.3 0.5811 -83.1 6.000 0.4145 122.0 0.955 3.6 0.3001 42.8 0.5828 -91.8 ! ! SIEMENS AG Semiconductor Group, Munich