! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 1.5 V IC = 0.5 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 0.9813 -0.4 1.796 179.9 0.0014 95.2 0.9983 -0.3 0.020 0.9730 -1.2 1.828 179.0 0.0034 94.2 0.9999 -0.6 0.050 0.9795 -2.6 1.792 177.6 0.0074 87.5 0.9982 -1.4 0.100 0.9815 -5.8 1.798 175.0 0.0146 86.7 0.9975 -2.9 0.150 0.9828 -8.9 1.792 172.3 0.0221 85.0 0.9986 -4.4 0.200 0.9773 -11.6 1.773 169.4 0.0292 82.3 0.9963 -5.8 0.250 0.9728 -14.7 1.781 167.2 0.0367 80.5 0.9954 -7.4 0.300 0.9721 -17.5 1.795 163.9 0.0436 78.0 0.9916 -8.7 0.400 0.9624 -23.4 1.760 158.8 0.0577 74.1 0.9870 -11.6 0.500 0.9538 -29.4 1.749 153.3 0.0707 70.1 0.9789 -14.4 0.600 0.9422 -34.6 1.734 148.0 0.0836 66.1 0.9708 -17.1 0.700 0.9307 -40.4 1.702 143.5 0.0955 62.2 0.9616 -19.9 0.800 0.9113 -45.7 1.656 138.1 0.1065 58.4 0.9504 -22.5 0.900 0.8998 -50.6 1.629 133.9 0.1170 54.8 0.9393 -25.0 1.000 0.8834 -56.0 1.597 129.3 0.1265 51.3 0.9289 -27.5 1.100 0.8696 -60.9 1.564 124.9 0.1352 48.2 0.9173 -29.8 1.200 0.8567 -66.0 1.528 120.5 0.1431 44.7 0.9072 -32.3 1.300 0.8417 -70.9 1.498 116.2 0.1500 41.7 0.8938 -34.4 1.400 0.8286 -75.4 1.458 112.1 0.1557 38.7 0.8822 -36.7 1.500 0.8082 -80.0 1.433 108.0 0.1612 36.0 0.8722 -38.7 1.600 0.7968 -84.1 1.396 104.3 0.1659 33.6 0.8627 -40.7 1.700 0.7893 -88.8 1.363 100.6 0.1697 31.1 0.8492 -42.6 1.800 0.7669 -93.2 1.325 96.6 0.1740 29.1 0.8429 -44.3 1.900 0.7632 -96.5 1.296 93.6 0.1768 26.4 0.8346 -46.2 2.000 0.7442 -100.8 1.272 89.3 0.1805 24.4 0.8289 -47.9 2.200 0.7245 -107.6 1.207 82.7 0.1842 20.1 0.8157 -51.6 2.400 0.7053 -114.6 1.143 76.7 0.1854 16.6 0.8008 -54.8 2.600 0.6899 -120.6 1.095 70.8 0.1870 13.6 0.7919 -57.9 2.800 0.6745 -126.9 1.049 65.6 0.1881 10.6 0.7858 -60.9 3.000 0.6632 -132.5 0.999 60.1 0.1873 7.6 0.7792 -64.0 3.500 0.6314 -145.6 0.915 47.9 0.1873 2.0 0.7737 -71.2 4.000 0.6153 -157.9 0.846 36.7 0.1819 -2.7 0.7702 -78.7 4.500 0.6004 -169.9 0.785 26.6 0.1764 -6.5 0.7752 -86.3 5.000 0.5881 178.9 0.725 17.2 0.1687 -9.3 0.7828 -94.2 5.500 0.5785 166.7 0.676 8.1 0.1605 -10.2 0.7838 -102.4 6.000 0.5705 155.8 0.634 0.2 0.1538 -10.2 0.7842 -110.6 ! ! SIEMENS AG Semiconductor Group, Munich