! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 0.75 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 0.9638 -0.8 3.386 179.7 0.0017 96.1 0.9968 -0.4 0.020 0.9560 -1.5 3.468 178.7 0.0037 89.1 0.9999 -0.8 0.050 0.9622 -4.1 3.409 176.8 0.0092 85.1 0.9971 -2.1 0.100 0.9623 -8.2 3.401 173.5 0.0175 85.7 0.9930 -4.2 0.150 0.9635 -12.7 3.418 170.0 0.0263 81.9 0.9926 -6.2 0.200 0.9547 -16.4 3.363 166.4 0.0348 79.0 0.9874 -8.3 0.250 0.9499 -20.8 3.326 163.3 0.0429 76.6 0.9831 -10.3 0.300 0.9415 -24.9 3.351 159.5 0.0510 74.2 0.9764 -12.3 0.400 0.9221 -32.7 3.259 153.0 0.0672 68.9 0.9611 -16.2 0.500 0.9059 -40.7 3.173 146.5 0.0811 63.7 0.9431 -19.8 0.600 0.8774 -48.0 3.081 140.0 0.0938 59.1 0.9233 -23.2 0.700 0.8561 -55.3 2.979 135.0 0.1055 54.6 0.9010 -26.5 0.800 0.8286 -62.4 2.856 129.0 0.1150 50.6 0.8771 -29.5 0.900 0.8075 -68.5 2.755 124.2 0.1246 46.6 0.8563 -32.4 1.000 0.7844 -74.6 2.636 119.3 0.1322 42.8 0.8354 -35.1 1.100 0.7685 -80.4 2.526 114.8 0.1385 39.7 0.8155 -37.4 1.200 0.7446 -86.1 2.426 110.2 0.1448 36.3 0.7981 -40.0 1.300 0.7281 -91.6 2.328 106.1 0.1495 33.8 0.7793 -41.9 1.400 0.7138 -96.9 2.243 101.7 0.1530 31.0 0.7643 -44.2 1.500 0.6965 -102.1 2.168 97.9 0.1560 28.7 0.7482 -46.0 1.600 0.6825 -106.6 2.082 94.5 0.1584 26.8 0.7351 -47.8 1.700 0.6722 -111.3 2.012 90.8 0.1597 24.6 0.7183 -49.6 1.800 0.6553 -115.4 1.923 87.5 0.1624 23.0 0.7113 -51.1 1.900 0.6483 -118.8 1.854 84.3 0.1640 20.8 0.7024 -52.8 2.000 0.6352 -123.0 1.795 80.7 0.1661 19.5 0.6962 -54.3 2.200 0.6176 -130.3 1.688 74.7 0.1671 16.1 0.6811 -57.6 2.400 0.6049 -136.5 1.561 69.4 0.1677 13.7 0.6697 -60.6 2.600 0.5922 -142.5 1.486 64.0 0.1672 11.7 0.6595 -63.3 2.800 0.5839 -148.1 1.397 59.4 0.1683 10.0 0.6575 -66.1 3.000 0.5750 -153.8 1.331 54.3 0.1667 8.1 0.6515 -69.0 3.500 0.5560 -165.7 1.189 43.5 0.1677 5.4 0.6501 -75.8 4.000 0.5464 -176.8 1.078 32.9 0.1666 2.7 0.6524 -83.2 4.500 0.5404 172.3 0.987 23.4 0.1662 0.6 0.6613 -90.8 5.000 0.5325 162.2 0.906 14.3 0.1640 -0.4 0.6697 -98.7 5.500 0.5323 151.5 0.842 5.6 0.1638 -0.5 0.6740 -106.9 6.000 0.5296 141.4 0.780 -1.9 0.1654 -0.4 0.6773 -115.0 ! ! SIEMENS AG Semiconductor Group, Munich