! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 4 V IC = 5 mA ! Common Emitter S-Parameters: May 1997 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.8381 -1.7 13.170 178.5 0.0011 92.7 0.9898 -0.6 0.020 0.8370 -3.9 13.401 177.1 0.0028 92.8 0.9953 -1.4 0.050 0.8411 -8.7 13.062 173.9 0.0060 84.7 0.9890 -3.7 0.100 0.8311 -17.7 12.974 167.7 0.0119 80.4 0.9767 -7.3 0.150 0.8217 -26.4 12.711 161.8 0.0180 77.1 0.9636 -10.7 0.200 0.8024 -34.3 12.313 156.0 0.0235 72.0 0.9438 -13.8 0.250 0.7793 -42.4 11.917 150.7 0.0281 68.9 0.9202 -16.9 0.300 0.7590 -50.2 11.552 145.1 0.0325 65.2 0.8925 -19.5 0.400 0.7188 -63.6 10.537 136.1 0.0397 58.1 0.8406 -23.9 0.500 0.6759 -76.6 9.616 127.8 0.0452 53.2 0.7908 -27.4 0.600 0.6401 -87.6 8.770 120.7 0.0494 49.9 0.7460 -30.1 0.700 0.6132 -97.1 7.992 115.3 0.0530 46.2 0.7072 -32.2 0.800 0.5813 -105.8 7.262 109.9 0.0559 44.0 0.6751 -33.9 0.900 0.5642 -112.8 6.696 105.6 0.0587 41.9 0.6497 -35.3 1.000 0.5454 -119.4 6.182 101.4 0.0606 40.8 0.6284 -36.7 1.100 0.5421 -126.2 5.734 97.6 0.0625 39.9 0.6101 -37.8 1.200 0.5272 -131.5 5.341 93.9 0.0645 38.8 0.5955 -39.0 1.300 0.5173 -137.0 4.983 90.8 0.0663 38.4 0.5828 -40.0 1.400 0.5108 -141.5 4.679 87.5 0.0673 38.4 0.5723 -41.2 1.500 0.5064 -145.7 4.410 84.7 0.0689 38.0 0.5630 -42.3 1.600 0.5058 -149.5 4.157 82.3 0.0703 38.1 0.5576 -43.3 1.700 0.5028 -152.6 3.948 79.6 0.0718 38.1 0.5506 -44.5 1.800 0.4961 -156.8 3.731 77.4 0.0734 38.1 0.5468 -45.6 1.900 0.4954 -159.4 3.558 75.0 0.0747 37.7 0.5435 -46.7 2.000 0.4913 -162.2 3.408 72.5 0.0769 38.1 0.5410 -48.0 2.200 0.4869 -167.5 3.126 68.2 0.0799 38.2 0.5375 -50.4 2.400 0.4892 -172.8 2.868 64.1 0.0828 38.4 0.5350 -52.8 2.600 0.4848 -176.3 2.679 60.1 0.0863 38.8 0.5340 -55.2 2.800 0.4836 179.1 2.503 56.6 0.0904 39.1 0.5357 -57.7 3.000 0.4824 175.2 2.342 52.6 0.0939 39.1 0.5371 -60.1 3.500 0.4761 166.4 2.048 44.0 0.1038 39.3 0.5436 -66.5 4.000 0.4791 157.5 1.826 35.3 0.1155 38.8 0.5544 -73.3 4.500 0.4778 148.9 1.646 27.0 0.1276 37.6 0.5665 -80.5 5.000 0.4734 140.8 1.497 19.0 0.1404 36.3 0.5801 -88.1 5.500 0.4797 132.2 1.371 10.7 0.1540 34.5 0.5896 -95.9 6.000 0.4892 123.7 1.268 3.6 0.1683 31.8 0.5978 -103.6 ! ! SIEMENS AG Semiconductor Group, Munich