! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 3.5 V IC = 10 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 0.6983 -2.7 20.317 177.9 0.0013 83.0 0.9816 -0.9 0.020 0.6935 -5.8 20.540 176.0 0.0029 91.0 0.9818 -2.0 0.050 0.6988 -14.2 20.055 171.0 0.0060 82.4 0.9742 -5.1 0.100 0.6823 -28.5 19.595 162.2 0.0112 78.0 0.9511 -10.0 0.150 0.6684 -42.0 18.680 153.8 0.0161 70.9 0.9213 -14.5 0.200 0.6480 -53.4 17.546 146.5 0.0206 66.7 0.8827 -18.1 0.250 0.6236 -65.2 16.398 139.9 0.0240 62.2 0.8424 -21.4 0.300 0.6043 -75.2 15.350 133.5 0.0264 58.5 0.8002 -23.7 0.400 0.5752 -92.2 13.237 123.9 0.0315 53.2 0.7324 -27.1 0.500 0.5480 -106.2 11.513 115.8 0.0345 49.2 0.6769 -29.3 0.600 0.5327 -117.8 10.110 109.4 0.0374 47.3 0.6350 -30.6 0.700 0.5218 -127.0 8.975 104.6 0.0395 46.5 0.6051 -31.6 0.800 0.5093 -134.4 7.995 99.9 0.0414 46.3 0.5803 -32.3 0.900 0.5040 -140.7 7.259 96.3 0.0438 45.8 0.5623 -33.2 1.000 0.4979 -146.8 6.614 92.7 0.0454 45.8 0.5487 -34.0 1.100 0.4985 -151.4 6.077 89.5 0.0469 45.9 0.5382 -34.8 1.200 0.4923 -156.0 5.612 86.3 0.0492 46.3 0.5293 -35.7 1.300 0.4931 -160.1 5.199 83.7 0.0512 46.6 0.5221 -36.6 1.400 0.4946 -163.4 4.853 80.8 0.0528 47.0 0.5164 -37.7 1.500 0.4907 -166.3 4.553 78.3 0.0548 47.7 0.5125 -38.7 1.600 0.4974 -169.1 4.280 76.1 0.0570 48.2 0.5104 -39.9 1.700 0.4918 -171.6 4.052 73.8 0.0591 48.2 0.5071 -41.1 1.800 0.4926 -174.4 3.824 71.9 0.0613 49.2 0.5057 -42.3 1.900 0.4932 -176.6 3.635 69.6 0.0629 48.8 0.5051 -43.6 2.000 0.4925 -178.8 3.474 67.4 0.0656 49.1 0.5046 -44.8 2.200 0.4941 177.5 3.178 63.5 0.0699 49.5 0.5052 -47.4 2.400 0.4949 173.3 2.910 59.8 0.0742 49.9 0.5062 -50.1 2.600 0.4942 170.6 2.714 56.1 0.0787 49.9 0.5079 -52.7 2.800 0.4961 166.6 2.525 52.7 0.0841 50.2 0.5112 -55.3 3.000 0.4960 163.4 2.368 49.0 0.0890 49.9 0.5149 -58.0 3.500 0.4946 155.9 2.060 40.8 0.1015 49.2 0.5247 -64.9 4.000 0.4980 148.9 1.831 32.4 0.1154 47.7 0.5375 -72.0 4.500 0.4998 140.7 1.646 24.1 0.1296 45.7 0.5515 -79.4 5.000 0.4973 132.7 1.494 16.5 0.1443 43.4 0.5664 -87.2 5.500 0.5027 125.4 1.364 8.3 0.1596 40.5 0.5783 -95.2 6.000 0.5139 117.5 1.259 1.4 0.1753 37.3 0.5871 -103.2 ! ! SIEMENS AG Semiconductor Group, Munich