! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 1.75 V IC = 1 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 0.9655 -0.6 3.390 179.7 0.0014 88.6 0.9963 -0.3 0.020 0.9630 -1.4 3.485 178.7 0.0031 84.0 0.9979 -0.7 0.050 0.9638 -3.9 3.423 177.0 0.0070 83.3 0.9969 -1.8 0.100 0.9651 -7.8 3.410 173.9 0.0138 84.9 0.9953 -3.6 0.150 0.9616 -11.8 3.424 170.8 0.0215 83.4 0.9952 -5.4 0.200 0.9588 -15.3 3.371 167.5 0.0281 80.2 0.9910 -7.2 0.250 0.9539 -19.1 3.339 164.7 0.0347 78.5 0.9880 -9.0 0.300 0.9463 -22.7 3.370 161.1 0.0417 75.4 0.9814 -10.6 0.400 0.9305 -30.1 3.297 155.1 0.0544 71.0 0.9708 -14.0 0.500 0.9130 -37.5 3.213 149.0 0.0664 66.2 0.9558 -17.3 0.600 0.8917 -44.5 3.133 143.0 0.0774 61.9 0.9407 -20.3 0.700 0.8737 -51.5 3.052 138.1 0.0872 57.5 0.9235 -23.2 0.800 0.8479 -58.1 2.939 132.5 0.0956 53.5 0.9033 -26.1 0.900 0.8264 -64.1 2.849 127.8 0.1036 49.6 0.8851 -28.7 1.000 0.8070 -69.5 2.736 123.2 0.1109 46.4 0.8678 -31.2 1.100 0.7873 -75.1 2.632 118.7 0.1165 43.3 0.8500 -33.3 1.200 0.7673 -80.9 2.532 114.1 0.1222 40.0 0.8363 -35.7 1.300 0.7491 -86.6 2.440 110.2 0.1270 37.4 0.8200 -37.7 1.400 0.7352 -91.7 2.356 106.0 0.1300 34.6 0.8053 -39.8 1.500 0.7131 -96.6 2.287 102.1 0.1337 32.3 0.7916 -41.6 1.600 0.6997 -101.1 2.203 98.7 0.1359 30.4 0.7800 -43.4 1.700 0.6922 -105.6 2.134 95.0 0.1375 28.1 0.7648 -45.1 1.800 0.6745 -109.9 2.047 91.7 0.1398 26.6 0.7566 -46.6 1.900 0.6654 -113.5 1.975 88.8 0.1413 24.5 0.7491 -48.3 2.000 0.6507 -117.8 1.917 85.0 0.1434 23.0 0.7423 -49.8 2.200 0.6322 -124.9 1.807 79.1 0.1447 19.8 0.7287 -53.0 2.400 0.6189 -131.4 1.669 73.7 0.1457 17.4 0.7172 -56.0 2.600 0.6028 -137.7 1.591 68.4 0.1454 15.5 0.7071 -58.7 2.800 0.5948 -143.1 1.498 63.9 0.1468 13.8 0.7043 -61.4 3.000 0.5856 -149.0 1.425 58.7 0.1455 12.0 0.6983 -64.2 3.500 0.5613 -161.4 1.276 47.8 0.1458 9.4 0.6945 -70.9 4.000 0.5502 -172.8 1.155 37.4 0.1450 7.2 0.6964 -78.0 4.500 0.5416 176.2 1.054 27.9 0.1444 5.9 0.7037 -85.4 5.000 0.5308 165.6 0.971 18.9 0.1439 5.8 0.7116 -93.1 5.500 0.5285 154.6 0.897 9.9 0.1451 6.4 0.7167 -101.1 6.000 0.5297 143.9 0.833 2.3 0.1487 7.3 0.7192 -109.0 ! ! SIEMENS AG Semiconductor Group, Munich