! SIEMENS Small Signal Semiconductors ! BFS481 ! Si NPN RF Bipolar Junction Transistor in SOT363 ! VCE = 1 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 0.8961 -1.7 9.003 179.1 0.0018 83.0 0.9920 -0.6 0.020 0.9048 -2.9 8.978 177.7 0.0033 87.0 0.9899 -1.2 0.030 0.8986 -4.5 8.991 176.8 0.0048 87.8 0.9900 -1.8 0.050 0.8993 -7.6 9.043 174.5 0.0080 86.3 0.9890 -3.0 0.100 0.8847 -14.9 8.925 168.2 0.0151 82.9 0.9814 -6.0 0.150 0.8646 -22.0 8.772 161.9 0.0230 77.9 0.9656 -8.8 0.200 0.8418 -28.9 8.525 156.3 0.0299 74.6 0.9461 -11.3 0.250 0.8149 -35.5 8.266 151.0 0.0359 71.8 0.9250 -13.7 0.300 0.7794 -42.0 7.956 145.5 0.0417 68.3 0.9011 -15.7 0.400 0.7168 -53.7 7.342 136.4 0.0517 63.5 0.8518 -19.1 0.500 0.6513 -64.1 6.707 128.3 0.0595 59.9 0.8060 -21.6 0.600 0.5965 -73.7 6.100 121.5 0.0661 56.8 0.7632 -23.4 0.700 0.5437 -82.5 5.536 115.4 0.0713 55.0 0.7288 -24.6 0.800 0.5033 -90.5 5.125 110.0 0.0761 53.7 0.6976 -25.6 0.900 0.4629 -98.2 4.710 105.4 0.0803 52.7 0.6732 -26.5 1.000 0.4359 -105.1 4.353 101.3 0.0842 52.2 0.6503 -27.1 1.100 0.4091 -112.0 4.034 97.1 0.0878 51.8 0.6325 -27.6 1.200 0.3859 -118.7 3.772 93.5 0.0914 51.4 0.6163 -28.3 1.300 0.3712 -125.0 3.545 90.5 0.0947 51.7 0.6022 -28.8 1.400 0.3526 -131.0 3.322 87.2 0.0984 51.8 0.5912 -29.4 1.500 0.3439 -136.8 3.151 84.2 0.1014 52.1 0.5798 -29.9 1.600 0.3377 -142.7 2.978 81.2 0.1051 52.4 0.5717 -30.5 1.700 0.3335 -147.5 2.846 78.7 0.1084 52.8 0.5628 -31.2 1.800 0.3259 -152.7 2.699 75.9 0.1124 53.0 0.5559 -31.9 1.900 0.3227 -157.8 2.573 73.3 0.1162 53.2 0.5488 -32.7 2.000 0.3193 -162.0 2.470 71.1 0.1201 53.5 0.5441 -33.6 2.200 0.3180 -170.4 2.277 66.2 0.1281 53.9 0.5315 -35.3 2.400 0.3189 -177.8 2.126 61.9 0.1364 54.2 0.5227 -37.4 2.600 0.3236 174.5 1.987 57.6 0.1453 54.5 0.5140 -39.4 2.800 0.3265 168.3 1.862 53.3 0.1542 54.3 0.5068 -41.8 3.000 0.3358 162.4 1.762 49.3 0.1635 54.3 0.4985 -44.2 3.200 0.3439 156.7 1.677 45.6 0.1735 54.2 0.4926 -47.0 3.400 0.3535 152.1 1.595 41.8 0.1839 54.0 0.4861 -49.9 3.600 0.3638 147.4 1.527 38.1 0.1947 53.4 0.4792 -52.9 3.800 0.3739 143.3 1.456 34.8 0.2045 52.8 0.4696 -56.1 4.000 0.3830 139.7 1.400 31.4 0.2159 52.1 0.4646 -59.5 4.500 0.4113 132.2 1.277 23.0 0.2441 49.9 0.4492 -68.2 5.000 0.4227 125.1 1.164 15.2 0.2752 47.2 0.4462 -75.8 5.500 0.4227 120.0 1.100 6.6 0.3153 42.3 0.4532 -86.0 6.000 0.4169 113.2 1.037 -2.0 0.3540 36.1 0.4587 -95.3 ! ! SIEMENS AG Semiconductor Group, Munich