! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 5 V IC = 12 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 0.6706 -3.0 22.334 177.6 0.0010 95.6 0.9780 -0.7 0.020 0.6689 -6.0 22.635 175.6 0.0027 88.3 0.9894 -2.1 0.050 0.6644 -14.9 22.057 170.4 0.0054 82.0 0.9727 -5.3 0.100 0.6561 -30.0 21.388 161.5 0.0106 77.9 0.9492 -10.5 0.150 0.6414 -44.0 20.416 152.8 0.0153 70.3 0.9135 -15.1 0.200 0.6139 -57.0 19.058 145.3 0.0191 65.8 0.8714 -18.8 0.250 0.5977 -67.9 17.682 138.8 0.0226 62.0 0.8293 -22.0 0.300 0.5808 -78.7 16.509 132.3 0.0251 58.3 0.7878 -24.3 0.400 0.5525 -96.0 14.138 122.5 0.0295 53.6 0.7161 -27.6 0.500 0.5279 -109.5 12.242 114.7 0.0324 50.1 0.6608 -29.5 0.600 0.5168 -120.6 10.707 108.5 0.0352 48.5 0.6204 -30.8 0.700 0.4994 -130.0 9.466 103.7 0.0368 47.3 0.5901 -31.7 0.800 0.4978 -137.5 8.422 99.2 0.0390 47.5 0.5663 -32.3 0.900 0.4896 -143.5 7.638 95.6 0.0415 47.6 0.5489 -33.1 1.000 0.4815 -149.1 6.958 92.1 0.0433 47.6 0.5357 -33.8 1.100 0.4912 -153.3 6.383 89.1 0.0449 47.8 0.5249 -34.5 1.200 0.4814 -157.7 5.897 86.0 0.0470 48.7 0.5177 -35.4 1.300 0.4871 -161.4 5.460 83.5 0.0495 48.5 0.5110 -36.3 1.400 0.4857 -165.1 5.100 80.6 0.0511 49.6 0.5060 -37.3 1.500 0.4884 -168.1 4.779 78.2 0.0531 49.9 0.5021 -38.4 1.600 0.4870 -170.5 4.489 76.1 0.0553 50.3 0.4995 -39.6 1.700 0.4849 -173.4 4.250 73.7 0.0574 50.6 0.4968 -40.7 1.800 0.4858 -176.1 4.009 72.0 0.0598 51.0 0.4958 -41.9 1.900 0.4863 -177.6 3.817 69.7 0.0615 51.2 0.4947 -43.1 2.000 0.4881 -179.9 3.641 67.6 0.0645 51.3 0.4942 -44.4 2.200 0.4875 176.1 3.331 63.6 0.0688 51.6 0.4951 -47.0 2.400 0.4897 172.5 3.052 60.1 0.0735 51.7 0.4959 -49.6 2.600 0.4856 169.4 2.840 56.4 0.0784 51.8 0.4984 -52.2 2.800 0.4881 166.0 2.645 53.2 0.0835 51.7 0.5017 -54.8 3.000 0.4904 162.6 2.478 49.4 0.0886 51.3 0.5053 -57.5 3.500 0.4895 155.2 2.155 41.3 0.1013 50.6 0.5157 -64.2 4.000 0.4907 147.9 1.915 33.0 0.1150 48.7 0.5283 -71.3 4.500 0.4925 140.2 1.724 24.9 0.1296 46.6 0.5424 -78.7 5.000 0.4935 132.7 1.564 17.2 0.1439 44.1 0.5574 -86.4 5.500 0.4977 125.0 1.429 9.2 0.1593 41.1 0.5692 -94.3 6.000 0.5095 117.4 1.317 2.3 0.1748 37.8 0.5780 -102.3 ! ! SIEMENS AG Semiconductor Group, Munich