! SIEMENS Small Signal Semiconductors ! BFS481 ! Si NPN RF Bipolar Junction Transistor in SOT363 ! VCE = 2 V IC = 6 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 0.8130 -2.2 15.118 178.3 0.0013 85.8 0.9869 -0.7 0.020 0.8160 -4.2 15.029 176.6 0.0028 87.4 0.9841 -1.6 0.030 0.8105 -6.5 15.082 175.1 0.0038 88.2 0.9849 -2.3 0.050 0.8091 -11.0 15.075 171.7 0.0064 83.1 0.9815 -4.0 0.100 0.7847 -20.9 14.670 163.1 0.0127 80.7 0.9627 -7.7 0.150 0.7490 -30.9 14.072 154.8 0.0186 75.2 0.9345 -11.0 0.200 0.7088 -39.9 13.301 147.6 0.0235 71.7 0.9012 -13.7 0.250 0.6672 -48.4 12.489 141.1 0.0280 68.7 0.8672 -15.8 0.300 0.6204 -56.0 11.656 135.1 0.0314 65.8 0.8338 -17.5 0.400 0.5403 -69.6 10.172 125.5 0.0380 62.5 0.7745 -19.6 0.500 0.4756 -80.8 8.877 117.7 0.0429 60.8 0.7291 -20.7 0.600 0.4242 -91.0 7.799 111.4 0.0478 59.8 0.6923 -21.3 0.700 0.3808 -100.4 6.892 106.2 0.0521 59.9 0.6655 -21.5 0.800 0.3498 -108.6 6.252 101.6 0.0561 60.1 0.6437 -21.8 0.900 0.3227 -116.5 5.651 97.9 0.0600 60.5 0.6268 -22.0 1.000 0.3039 -123.3 5.168 94.3 0.0643 61.2 0.6134 -22.3 1.100 0.2905 -131.1 4.746 90.8 0.0684 61.4 0.6019 -22.5 1.200 0.2787 -137.4 4.398 87.8 0.0726 61.9 0.5925 -22.9 1.300 0.2712 -143.8 4.106 85.4 0.0767 62.5 0.5845 -23.4 1.400 0.2629 -149.6 3.830 82.5 0.0810 63.1 0.5774 -23.9 1.500 0.2631 -155.4 3.612 80.0 0.0855 63.5 0.5701 -24.5 1.600 0.2645 -160.3 3.403 77.6 0.0895 63.7 0.5656 -25.1 1.700 0.2619 -164.2 3.235 75.5 0.0939 64.1 0.5601 -25.8 1.800 0.2611 -169.6 3.066 73.0 0.0988 64.2 0.5554 -26.5 1.900 0.2613 -174.2 2.913 70.8 0.1035 64.2 0.5510 -27.3 2.000 0.2643 -178.1 2.791 68.8 0.1083 64.3 0.5478 -28.2 2.200 0.2696 175.3 2.566 64.5 0.1176 64.2 0.5391 -30.0 2.400 0.2756 168.7 2.386 60.7 0.1272 64.1 0.5326 -32.0 2.600 0.2821 162.4 2.224 56.9 0.1375 63.7 0.5257 -34.2 2.800 0.2896 157.7 2.079 53.0 0.1475 63.0 0.5198 -36.5 3.000 0.2993 152.4 1.966 49.3 0.1579 62.4 0.5130 -38.8 3.200 0.3123 147.4 1.866 45.9 0.1687 62.0 0.5075 -41.5 3.400 0.3213 143.9 1.772 42.4 0.1796 61.2 0.5015 -44.2 3.600 0.3345 140.1 1.695 39.0 0.1911 60.2 0.4950 -47.0 3.800 0.3447 136.4 1.613 35.9 0.2012 59.3 0.4858 -50.0 4.000 0.3550 133.8 1.551 32.6 0.2131 58.1 0.4810 -53.1 4.500 0.3825 128.2 1.414 24.5 0.2420 55.1 0.4665 -61.1 5.000 0.3947 122.1 1.289 16.8 0.2734 51.7 0.4648 -68.3 5.500 0.3933 117.9 1.217 8.2 0.3124 46.2 0.4715 -77.7 6.000 0.3873 111.5 1.142 -0.4 0.3496 39.8 0.4797 -86.4 ! ! SIEMENS AG Semiconductor Group, Munich