! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 10 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 0.9727 -0.5 3.377 179.5 0.0012 90.3 0.9961 -0.3 0.020 0.9638 -1.2 3.442 178.6 0.0031 87.9 0.9999 -0.7 0.050 0.9716 -3.3 3.357 177.3 0.0062 84.3 0.9961 -1.7 0.100 0.9764 -6.9 3.381 174.4 0.0125 86.3 0.9954 -3.3 0.150 0.9713 -10.4 3.369 171.6 0.0189 84.1 0.9946 -4.9 0.200 0.9677 -13.6 3.336 168.6 0.0247 81.9 0.9910 -6.6 0.250 0.9603 -16.9 3.341 166.0 0.0310 79.6 0.9898 -8.2 0.300 0.9574 -20.3 3.355 162.7 0.0371 77.1 0.9838 -9.8 0.400 0.9430 -26.7 3.267 157.3 0.0491 72.4 0.9756 -12.9 0.500 0.9272 -33.4 3.225 151.5 0.0596 68.1 0.9647 -16.0 0.600 0.9125 -39.7 3.175 145.8 0.0696 64.4 0.9495 -18.9 0.700 0.8929 -46.0 3.086 141.4 0.0787 60.2 0.9349 -21.8 0.800 0.8713 -51.9 2.982 136.1 0.0869 56.6 0.9188 -24.5 0.900 0.8500 -57.6 2.898 131.7 0.0952 52.9 0.9031 -27.0 1.000 0.8293 -62.9 2.811 127.0 0.1024 49.5 0.8876 -29.5 1.100 0.8140 -68.3 2.730 122.7 0.1080 46.6 0.8719 -31.7 1.200 0.7946 -73.8 2.650 118.3 0.1140 43.4 0.8579 -34.0 1.300 0.7740 -79.0 2.560 114.5 0.1185 40.8 0.8414 -36.0 1.400 0.7587 -83.8 2.475 110.4 0.1223 38.0 0.8277 -38.2 1.500 0.7390 -88.5 2.406 106.6 0.1259 35.8 0.8140 -40.0 1.600 0.7224 -92.9 2.320 103.2 0.1289 33.9 0.8024 -41.8 1.700 0.7125 -97.5 2.252 99.8 0.1310 31.7 0.7885 -43.5 1.800 0.6909 -101.8 2.170 96.3 0.1341 30.0 0.7801 -45.1 1.900 0.6829 -105.3 2.102 93.3 0.1357 27.7 0.7719 -46.8 2.000 0.6644 -109.5 2.054 89.5 0.1381 26.2 0.7648 -48.2 2.200 0.6470 -116.1 1.918 83.7 0.1401 22.9 0.7495 -51.5 2.400 0.6251 -123.2 1.800 78.2 0.1415 20.4 0.7363 -54.4 2.600 0.6125 -129.0 1.704 73.0 0.1421 18.2 0.7254 -57.1 2.800 0.5966 -135.0 1.621 68.2 0.1437 16.2 0.7208 -59.7 3.000 0.5864 -140.6 1.529 63.3 0.1429 14.4 0.7139 -62.5 3.500 0.5573 -153.0 1.373 52.1 0.1441 11.2 0.7085 -69.0 4.000 0.5394 -164.7 1.249 41.9 0.1432 8.7 0.7071 -75.8 4.500 0.5281 -176.3 1.148 32.2 0.1428 7.1 0.7132 -83.0 5.000 0.5149 172.9 1.051 23.0 0.1424 6.4 0.7208 -90.4 5.500 0.5090 161.8 0.977 13.9 0.1432 6.8 0.7242 -98.1 6.000 0.5060 150.5 0.910 6.2 0.1462 7.2 0.7265 -105.8 ! ! SIEMENS AG Semiconductor Group, Munich