! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 2 V IC = 8 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 0.7390 -2.5 17.737 178.3 0.0013 87.6 0.9801 -0.9 0.020 0.7356 -5.6 17.891 176.3 0.0031 90.2 0.9819 -1.9 0.050 0.7404 -13.7 17.548 171.3 0.0062 78.6 0.9751 -5.0 0.100 0.7221 -27.2 17.174 162.7 0.0121 77.8 0.9540 -9.7 0.150 0.7074 -40.0 16.409 154.7 0.0177 71.3 0.9255 -14.0 0.200 0.6827 -51.7 15.507 147.2 0.0224 65.9 0.8880 -17.6 0.250 0.6598 -62.6 14.496 140.8 0.0263 61.8 0.8503 -20.9 0.300 0.6416 -72.3 13.632 134.5 0.0300 57.8 0.8112 -23.2 0.400 0.6032 -89.2 11.842 124.7 0.0349 52.4 0.7436 -26.7 0.500 0.5735 -103.4 10.330 116.5 0.0385 47.8 0.6888 -29.1 0.600 0.5557 -114.4 9.096 110.0 0.0412 45.5 0.6477 -30.5 0.700 0.5418 -123.8 8.085 105.1 0.0437 43.9 0.6172 -31.6 0.800 0.5275 -132.1 7.212 100.2 0.0460 44.0 0.5924 -32.5 0.900 0.5181 -138.6 6.552 96.4 0.0478 43.1 0.5738 -33.4 1.000 0.5113 -144.7 5.979 92.6 0.0496 42.9 0.5592 -34.3 1.100 0.5158 -149.4 5.494 89.4 0.0508 42.8 0.5478 -35.1 1.200 0.5087 -154.2 5.083 86.2 0.0531 43.2 0.5398 -36.1 1.300 0.5098 -158.1 4.710 83.5 0.0549 43.5 0.5322 -37.1 1.400 0.5109 -161.7 4.402 80.5 0.0564 43.9 0.5267 -38.2 1.500 0.5061 -164.9 4.129 77.9 0.0585 44.0 0.5227 -39.3 1.600 0.5078 -167.2 3.884 75.8 0.0603 44.7 0.5202 -40.6 1.700 0.5066 -170.4 3.680 73.2 0.0622 44.7 0.5169 -41.8 1.800 0.5075 -173.3 3.466 71.2 0.0643 45.5 0.5159 -43.0 1.900 0.5061 -175.2 3.304 68.9 0.0660 45.7 0.5140 -44.2 2.000 0.5054 -177.8 3.151 66.6 0.0683 46.0 0.5141 -45.6 2.200 0.5061 178.3 2.891 62.6 0.0726 46.3 0.5145 -48.4 2.400 0.5071 174.1 2.645 58.8 0.0768 47.0 0.5153 -51.0 2.600 0.5052 171.0 2.465 55.0 0.0813 47.1 0.5178 -53.8 2.800 0.5097 167.6 2.294 51.5 0.0864 47.5 0.5209 -56.5 3.000 0.5056 164.0 2.152 47.6 0.0909 47.1 0.5245 -59.3 3.500 0.5059 156.2 1.873 39.2 0.1035 46.7 0.5345 -66.3 4.000 0.5089 148.8 1.667 30.8 0.1172 45.5 0.5475 -73.6 4.500 0.5119 140.5 1.500 22.3 0.1314 43.9 0.5611 -81.2 5.000 0.5107 133.1 1.361 14.4 0.1462 41.5 0.5762 -89.1 5.500 0.5129 125.4 1.244 6.4 0.1615 38.9 0.5877 -97.2 6.000 0.5206 117.6 1.148 -0.8 0.1772 35.7 0.5969 -105.3 ! ! SIEMENS AG Semiconductor Group, Munich