! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 8 V IC = 1.2 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 0.9641 -0.7 3.974 179.5 0.0012 91.1 0.9962 -0.4 0.020 0.9607 -1.7 4.055 178.6 0.0028 91.9 0.9999 -0.7 0.050 0.9628 -3.7 4.010 177.0 0.0061 87.3 0.9960 -1.8 0.100 0.9657 -7.5 4.000 173.9 0.0127 85.2 0.9921 -3.6 0.150 0.9649 -11.4 4.009 170.9 0.0187 82.6 0.9936 -5.3 0.200 0.9536 -14.9 3.969 167.7 0.0249 80.5 0.9899 -7.1 0.250 0.9522 -18.6 3.912 165.0 0.0313 78.8 0.9872 -8.9 0.300 0.9465 -22.3 3.921 161.5 0.0369 76.0 0.9797 -10.5 0.400 0.9293 -29.5 3.864 155.6 0.0484 71.6 0.9687 -13.9 0.500 0.9108 -36.8 3.766 149.5 0.0588 66.6 0.9538 -17.2 0.600 0.8912 -43.3 3.652 143.7 0.0686 62.4 0.9381 -20.1 0.700 0.8692 -50.4 3.547 139.1 0.0779 58.4 0.9212 -23.0 0.800 0.8468 -56.5 3.434 133.4 0.0852 54.9 0.9005 -25.7 0.900 0.8206 -62.7 3.347 128.8 0.0925 51.1 0.8821 -28.3 1.000 0.7973 -68.4 3.202 124.3 0.0985 47.8 0.8637 -30.8 1.100 0.7814 -74.0 3.076 120.0 0.1040 44.8 0.8470 -32.9 1.200 0.7604 -79.4 2.961 115.6 0.1093 41.8 0.8324 -35.2 1.300 0.7428 -84.8 2.849 111.7 0.1133 39.2 0.8152 -37.1 1.400 0.7262 -89.8 2.741 107.7 0.1164 36.7 0.8010 -39.2 1.500 0.7053 -94.4 2.658 104.0 0.1200 34.4 0.7874 -40.9 1.600 0.6905 -99.3 2.568 100.5 0.1222 32.8 0.7755 -42.6 1.700 0.6744 -103.8 2.493 97.0 0.1233 30.6 0.7591 -44.3 1.800 0.6590 -108.3 2.391 93.7 0.1255 29.0 0.7505 -45.8 1.900 0.6506 -111.7 2.306 90.8 0.1273 27.0 0.7419 -47.5 2.000 0.6368 -115.5 2.232 87.4 0.1294 25.8 0.7358 -48.9 2.200 0.6171 -123.0 2.100 81.5 0.1310 22.8 0.7218 -52.0 2.400 0.5997 -129.7 1.943 76.3 0.1321 20.6 0.7100 -54.7 2.600 0.5837 -135.5 1.847 71.1 0.1327 18.9 0.7000 -57.4 2.800 0.5728 -140.9 1.739 66.6 0.1339 17.3 0.6957 -59.9 3.000 0.5625 -146.9 1.649 61.7 0.1335 15.7 0.6902 -62.7 3.500 0.5375 -159.3 1.474 51.0 0.1347 13.4 0.6854 -69.1 4.000 0.5272 -170.5 1.329 40.9 0.1358 11.6 0.6876 -75.8 4.500 0.5145 178.1 1.211 31.6 0.1366 10.9 0.6932 -83.0 5.000 0.5020 167.7 1.118 22.6 0.1380 10.9 0.7002 -90.3 5.500 0.5020 157.0 1.031 13.6 0.1412 11.1 0.7062 -98.0 6.000 0.5025 146.6 0.955 6.1 0.1463 11.7 0.7086 -105.8 ! ! SIEMENS AG Semiconductor Group, Munich