! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 8 V IC = 1.5 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 0.9578 -0.6 4.870 179.2 0.0012 81.3 0.9963 -0.3 0.020 0.9577 -1.7 4.987 178.3 0.0028 94.5 0.9999 -0.8 0.050 0.9559 -4.1 4.904 176.8 0.0059 87.6 0.9953 -1.9 0.100 0.9526 -8.1 4.868 173.5 0.0126 86.4 0.9937 -3.9 0.150 0.9548 -12.6 4.878 170.2 0.0188 83.2 0.9911 -5.8 0.200 0.9454 -16.5 4.836 166.7 0.0249 79.7 0.9869 -7.8 0.250 0.9404 -20.8 4.745 163.6 0.0313 77.6 0.9833 -9.7 0.300 0.9305 -24.7 4.759 160.0 0.0367 75.2 0.9736 -11.4 0.400 0.9108 -32.7 4.659 153.6 0.0477 70.3 0.9598 -15.1 0.500 0.8927 -40.4 4.520 147.3 0.0573 65.1 0.9398 -18.5 0.600 0.8677 -47.9 4.357 141.1 0.0665 60.8 0.9204 -21.5 0.700 0.8407 -55.0 4.218 136.3 0.0751 56.5 0.9009 -24.5 0.800 0.8094 -61.7 4.035 130.6 0.0821 52.8 0.8775 -27.3 0.900 0.7874 -68.3 3.904 125.8 0.0880 49.2 0.8542 -29.8 1.000 0.7620 -74.0 3.717 121.2 0.0937 45.9 0.8341 -32.3 1.100 0.7482 -79.9 3.554 116.9 0.0981 43.3 0.8151 -34.4 1.200 0.7235 -85.5 3.402 112.6 0.1026 40.4 0.7994 -36.5 1.300 0.7006 -91.2 3.257 108.8 0.1061 38.0 0.7818 -38.3 1.400 0.6889 -96.1 3.127 104.7 0.1088 35.6 0.7663 -40.2 1.500 0.6661 -100.8 3.016 101.1 0.1113 33.7 0.7534 -41.9 1.600 0.6515 -105.7 2.897 97.8 0.1135 32.2 0.7406 -43.5 1.700 0.6394 -110.7 2.800 94.4 0.1143 30.2 0.7242 -45.1 1.800 0.6239 -114.6 2.670 91.3 0.1162 29.1 0.7155 -46.5 1.900 0.6156 -117.9 2.566 88.5 0.1173 27.2 0.7076 -48.0 2.000 0.6014 -122.0 2.485 85.1 0.1195 26.1 0.7013 -49.4 2.200 0.5851 -129.5 2.326 79.5 0.1211 23.8 0.6883 -52.4 2.400 0.5718 -135.5 2.143 74.5 0.1221 22.0 0.6774 -55.0 2.600 0.5578 -141.6 2.033 69.5 0.1228 20.8 0.6684 -57.5 2.800 0.5479 -147.1 1.910 65.2 0.1241 19.7 0.6650 -60.0 3.000 0.5373 -152.7 1.808 60.4 0.1243 18.5 0.6611 -62.6 3.500 0.5193 -164.5 1.605 50.1 0.1266 17.1 0.6570 -68.9 4.000 0.5073 -175.5 1.445 40.3 0.1292 15.7 0.6608 -75.6 4.500 0.4991 173.8 1.314 31.1 0.1322 15.5 0.6674 -82.7 5.000 0.4867 163.3 1.206 22.4 0.1359 15.5 0.6754 -90.0 5.500 0.4872 152.9 1.112 13.6 0.1416 15.7 0.6822 -97.6 6.000 0.4875 142.7 1.031 5.9 0.1491 15.7 0.6860 -105.3 ! ! SIEMENS AG Semiconductor Group, Munich