! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 4 V IC = 20 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 0.4782 -5.2 25.357 177.0 0.0011 83.8 0.9508 -0.9 0.020 0.4732 -10.9 25.574 174.2 0.0028 97.8 0.9512 -2.5 0.050 0.4794 -26.4 24.824 166.6 0.0056 78.7 0.9391 -6.5 0.100 0.4836 -50.5 23.296 154.3 0.0103 73.1 0.8954 -12.4 0.150 0.4878 -71.9 21.187 143.5 0.0139 65.2 0.8424 -16.9 0.200 0.4892 -87.7 18.931 134.9 0.0166 59.0 0.7887 -19.9 0.250 0.4928 -101.2 16.903 127.8 0.0185 54.8 0.7421 -22.0 0.300 0.4925 -112.7 15.183 121.3 0.0203 53.7 0.7016 -23.1 0.400 0.5005 -128.3 12.387 112.3 0.0233 51.3 0.6447 -24.3 0.500 0.5064 -139.4 10.365 105.4 0.0252 50.4 0.6070 -25.0 0.600 0.5109 -148.2 8.882 99.9 0.0273 51.1 0.5826 -25.3 0.700 0.5090 -154.8 7.738 95.8 0.0293 51.0 0.5658 -25.9 0.800 0.5133 -159.8 6.821 91.9 0.0311 52.4 0.5538 -26.5 0.900 0.5124 -164.0 6.147 88.9 0.0335 52.9 0.5457 -27.4 1.000 0.5148 -167.9 5.575 85.7 0.0357 54.6 0.5396 -28.3 1.100 0.5225 -171.0 5.090 83.0 0.0372 54.9 0.5350 -29.4 1.200 0.5187 -173.9 4.686 80.2 0.0397 55.7 0.5323 -30.6 1.300 0.5226 -176.4 4.324 77.8 0.0423 56.1 0.5290 -31.9 1.400 0.5280 -179.1 4.030 75.2 0.0442 57.1 0.5269 -33.2 1.500 0.5236 178.6 3.769 73.0 0.0467 57.2 0.5258 -34.6 1.600 0.5293 177.1 3.538 70.9 0.0489 58.6 0.5257 -36.0 1.700 0.5289 175.2 3.350 68.6 0.0515 58.7 0.5249 -37.5 1.800 0.5272 173.0 3.158 67.0 0.0537 59.1 0.5251 -39.0 1.900 0.5290 171.6 3.004 64.8 0.0560 58.7 0.5252 -40.5 2.000 0.5332 169.9 2.866 62.7 0.0588 59.1 0.5260 -42.0 2.200 0.5342 166.7 2.617 58.8 0.0638 59.1 0.5293 -45.1 2.400 0.5379 163.8 2.397 55.3 0.0688 59.2 0.5306 -48.2 2.600 0.5323 161.5 2.223 51.5 0.0740 59.2 0.5347 -51.3 2.800 0.5364 158.4 2.079 48.3 0.0795 59.0 0.5381 -54.2 3.000 0.5403 155.3 1.941 44.7 0.0851 58.3 0.5428 -57.3 3.500 0.5381 148.9 1.691 36.5 0.0985 57.3 0.5528 -64.8 4.000 0.5431 142.0 1.495 28.0 0.1137 55.0 0.5659 -72.5 4.500 0.5472 134.4 1.347 19.9 0.1295 52.6 0.5799 -80.4 5.000 0.5488 126.9 1.218 12.3 0.1458 49.7 0.5952 -88.6 5.500 0.5531 119.4 1.108 4.1 0.1627 46.4 0.6068 -97.0 6.000 0.5595 112.3 1.019 -2.6 0.1800 42.6 0.6141 -105.3 ! ! SIEMENS AG Semiconductor Group, Munich