! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 0.5 V IC = 2.5 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 0.9102 -1.6 7.549 179.1 0.0022 90.4 0.9874 -0.7 0.020 0.9015 -3.4 7.693 177.7 0.0047 91.2 0.9885 -1.5 0.050 0.9090 -8.0 7.523 174.3 0.0107 84.1 0.9858 -3.9 0.100 0.9027 -16.0 7.488 168.6 0.0215 81.5 0.9764 -7.8 0.150 0.8949 -23.9 7.372 162.8 0.0315 75.7 0.9639 -11.7 0.200 0.8756 -31.5 7.158 157.3 0.0410 71.7 0.9450 -15.1 0.250 0.8530 -38.9 6.993 152.2 0.0499 67.5 0.9235 -18.5 0.300 0.8338 -46.2 6.820 146.6 0.0580 63.3 0.8984 -21.7 0.400 0.7921 -58.7 6.289 137.7 0.0716 56.5 0.8473 -27.1 0.500 0.7555 -70.9 5.807 129.2 0.0820 50.3 0.7967 -31.6 0.600 0.7121 -82.2 5.351 121.6 0.0905 45.6 0.7481 -35.3 0.700 0.6824 -91.9 4.922 115.9 0.0967 41.1 0.7046 -38.3 0.800 0.6537 -100.3 4.509 110.0 0.1012 38.0 0.6682 -40.9 0.900 0.6314 -107.7 4.177 105.4 0.1061 35.1 0.6388 -43.0 1.000 0.6077 -114.2 3.870 100.8 0.1094 32.4 0.6121 -45.0 1.100 0.5990 -120.9 3.604 96.6 0.1116 30.5 0.5899 -46.6 1.200 0.5844 -126.6 3.378 92.4 0.1148 28.3 0.5713 -48.4 1.300 0.5738 -132.3 3.158 89.0 0.1162 27.2 0.5541 -49.7 1.400 0.5663 -137.1 2.974 85.2 0.1171 25.8 0.5403 -51.3 1.500 0.5593 -141.4 2.814 82.0 0.1185 24.8 0.5286 -52.5 1.600 0.5564 -145.5 2.656 79.1 0.1194 24.3 0.5214 -53.7 1.700 0.5514 -149.0 2.532 76.2 0.1202 23.4 0.5119 -55.1 1.800 0.5423 -152.7 2.394 73.7 0.1220 23.1 0.5083 -56.4 1.900 0.5427 -155.5 2.289 70.8 0.1225 22.0 0.5028 -57.8 2.000 0.5373 -159.0 2.194 67.9 0.1245 22.0 0.4997 -59.1 2.200 0.5333 -164.4 2.022 63.1 0.1261 20.8 0.4938 -61.9 2.400 0.5301 -169.9 1.858 58.5 0.1279 20.3 0.4902 -64.6 2.600 0.5234 -173.5 1.742 54.0 0.1295 20.3 0.4883 -67.0 2.800 0.5264 -178.7 1.630 49.9 0.1328 20.2 0.4913 -69.8 3.000 0.5248 177.4 1.536 45.5 0.1343 19.8 0.4909 -72.6 3.500 0.5153 167.9 1.353 36.0 0.1429 19.6 0.5012 -79.8 4.000 0.5163 159.0 1.212 26.6 0.1515 18.6 0.5107 -87.4 4.500 0.5131 150.0 1.104 17.5 0.1611 17.4 0.5237 -95.4 5.000 0.5108 141.3 1.007 9.1 0.1702 16.0 0.5369 -103.5 5.500 0.5137 132.6 0.925 0.6 0.1799 14.7 0.5459 -111.8 6.000 0.5197 124.0 0.857 -6.6 0.1913 12.8 0.5546 -120.1 ! ! SIEMENS AG Semiconductor Group, Munich