! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 3.5 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 0.9176 -1.2 7.684 179.2 0.0011 81.4 0.9940 -0.4 0.020 0.9127 -2.5 7.760 178.1 0.0031 92.2 0.9988 -1.0 0.050 0.9167 -5.8 7.618 175.8 0.0063 86.2 0.9934 -2.5 0.100 0.9112 -11.6 7.653 171.3 0.0128 84.7 0.9879 -5.2 0.150 0.9088 -17.6 7.530 167.0 0.0189 80.7 0.9843 -7.6 0.200 0.8969 -23.0 7.456 162.6 0.0252 76.7 0.9745 -10.1 0.250 0.8827 -28.9 7.332 158.6 0.0311 73.9 0.9638 -12.6 0.300 0.8740 -34.3 7.199 154.1 0.0364 70.5 0.9490 -14.7 0.400 0.8422 -44.8 6.877 146.4 0.0465 64.7 0.9209 -18.9 0.500 0.8071 -55.0 6.573 138.8 0.0548 59.0 0.8872 -22.6 0.600 0.7712 -64.4 6.198 131.9 0.0621 54.7 0.8540 -25.9 0.700 0.7444 -72.7 5.801 126.7 0.0681 50.3 0.8219 -28.7 0.800 0.7116 -80.6 5.414 120.8 0.0730 47.1 0.7919 -31.2 0.900 0.6795 -87.8 5.125 116.0 0.0776 43.7 0.7659 -33.4 1.000 0.6527 -94.8 4.833 111.2 0.0807 41.3 0.7413 -35.4 1.100 0.6405 -101.3 4.549 107.0 0.0832 39.1 0.7203 -37.1 1.200 0.6171 -107.2 4.295 102.8 0.0861 36.6 0.7019 -38.9 1.300 0.6042 -113.2 4.051 99.4 0.0878 35.2 0.6845 -40.3 1.400 0.5942 -118.0 3.832 95.6 0.0894 33.8 0.6710 -41.9 1.500 0.5789 -122.6 3.641 92.3 0.0913 32.4 0.6586 -43.2 1.600 0.5698 -127.2 3.454 89.4 0.0925 31.7 0.6492 -44.5 1.700 0.5623 -131.8 3.305 86.2 0.0939 30.6 0.6386 -45.8 1.800 0.5504 -136.0 3.144 83.5 0.0951 30.1 0.6317 -47.1 1.900 0.5434 -139.1 3.014 80.9 0.0954 28.9 0.6238 -48.4 2.000 0.5369 -142.8 2.895 77.9 0.0972 28.7 0.6193 -49.6 2.200 0.5288 -149.1 2.666 73.0 0.0989 27.5 0.6123 -52.3 2.400 0.5214 -155.4 2.461 68.5 0.1001 27.1 0.6038 -54.8 2.600 0.5129 -159.7 2.301 64.0 0.1022 26.5 0.6012 -57.2 2.800 0.5117 -165.6 2.165 60.0 0.1041 26.8 0.5986 -59.6 3.000 0.5046 -170.1 2.027 55.7 0.1059 26.5 0.5985 -62.2 3.500 0.4958 179.3 1.783 46.2 0.1118 26.5 0.6002 -68.5 4.000 0.4899 169.5 1.596 37.0 0.1185 26.6 0.6072 -75.2 4.500 0.4878 159.5 1.450 28.3 0.1265 26.9 0.6165 -82.3 5.000 0.4833 150.4 1.318 19.9 0.1354 26.5 0.6291 -89.8 5.500 0.4873 140.9 1.211 11.4 0.1462 26.0 0.6365 -97.6 6.000 0.4892 131.6 1.125 3.9 0.1579 24.7 0.6421 -105.3 ! ! SIEMENS AG Semiconductor Group, Munich