! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 2.5 V IC = 2 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 0.9306 -1.1 6.325 179.3 0.0014 86.4 0.9957 -0.5 0.020 0.9282 -2.1 6.412 178.3 0.0029 92.5 0.9999 -0.9 0.050 0.9289 -5.4 6.347 176.1 0.0066 84.3 0.9947 -2.3 0.100 0.9303 -10.4 6.347 172.1 0.0132 84.1 0.9924 -4.7 0.150 0.9241 -16.0 6.290 168.1 0.0200 81.0 0.9874 -7.0 0.200 0.9166 -21.1 6.225 163.9 0.0263 77.2 0.9799 -9.3 0.250 0.9034 -26.3 6.084 160.3 0.0327 74.4 0.9718 -11.6 0.300 0.8960 -31.1 6.032 156.0 0.0380 71.5 0.9598 -13.6 0.400 0.8660 -40.8 5.847 148.6 0.0493 66.2 0.9351 -17.6 0.500 0.8375 -50.4 5.607 141.4 0.0582 60.5 0.9080 -21.4 0.600 0.8055 -59.1 5.310 134.7 0.0665 56.0 0.8790 -24.6 0.700 0.7760 -67.4 5.028 129.6 0.0738 51.9 0.8510 -27.5 0.800 0.7440 -75.0 4.730 123.6 0.0794 48.2 0.8229 -30.1 0.900 0.7181 -82.2 4.530 118.6 0.0846 44.7 0.7966 -32.5 1.000 0.6918 -89.0 4.278 113.8 0.0882 41.9 0.7726 -34.7 1.100 0.6744 -95.1 4.036 109.7 0.0915 39.2 0.7512 -36.5 1.200 0.6524 -100.9 3.821 105.4 0.0949 36.7 0.7345 -38.5 1.300 0.6378 -106.5 3.622 101.7 0.0979 34.9 0.7171 -40.0 1.400 0.6267 -111.6 3.442 97.8 0.0992 32.9 0.7029 -41.8 1.500 0.6119 -116.6 3.285 94.3 0.1010 31.5 0.6901 -43.2 1.600 0.5983 -121.2 3.125 91.2 0.1026 30.4 0.6802 -44.6 1.700 0.5893 -126.1 3.007 88.0 0.1032 28.9 0.6655 -46.0 1.800 0.5758 -130.4 2.864 85.1 0.1044 28.0 0.6592 -47.4 1.900 0.5699 -133.6 2.740 82.4 0.1052 26.9 0.6515 -48.7 2.000 0.5620 -137.2 2.638 79.4 0.1068 26.2 0.6462 -50.0 2.200 0.5476 -144.3 2.443 74.0 0.1081 24.6 0.6373 -52.8 2.400 0.5419 -150.0 2.249 69.4 0.1092 23.7 0.6287 -55.4 2.600 0.5326 -155.5 2.118 64.7 0.1105 23.0 0.6238 -57.8 2.800 0.5239 -160.9 1.983 60.6 0.1121 22.8 0.6212 -60.4 3.000 0.5222 -165.8 1.871 56.1 0.1131 22.1 0.6204 -63.0 3.500 0.5087 -177.1 1.650 46.4 0.1174 21.9 0.6203 -69.3 4.000 0.5045 173.2 1.477 36.8 0.1225 21.7 0.6273 -76.2 4.500 0.4987 162.7 1.341 27.9 0.1287 22.2 0.6356 -83.4 5.000 0.4907 153.0 1.225 19.4 0.1361 22.3 0.6465 -90.9 5.500 0.4936 143.4 1.126 10.8 0.1451 22.1 0.6547 -98.7 6.000 0.4966 133.9 1.042 3.4 0.1559 21.4 0.6593 -106.5 ! ! SIEMENS AG Semiconductor Group, Munich