! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 1.5 V IC = 0.9 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 0.9674 -0.7 3.108 179.7 0.0013 79.8 0.9987 -0.3 0.020 0.9706 -1.4 3.158 178.8 0.0035 89.6 0.9999 -0.8 0.050 0.9694 -3.5 3.082 177.2 0.0073 88.2 0.9972 -1.7 0.100 0.9660 -7.3 3.118 174.1 0.0147 84.9 0.9951 -3.5 0.150 0.9699 -11.3 3.082 171.1 0.0217 83.4 0.9957 -5.3 0.200 0.9603 -14.4 3.073 167.8 0.0289 80.0 0.9922 -7.0 0.250 0.9528 -18.6 3.059 165.0 0.0363 78.3 0.9888 -8.8 0.300 0.9514 -21.9 3.043 161.6 0.0427 75.6 0.9832 -10.4 0.400 0.9359 -29.0 2.979 155.7 0.0563 71.5 0.9732 -13.7 0.500 0.9188 -36.2 2.957 149.6 0.0687 66.6 0.9609 -17.0 0.600 0.9012 -43.2 2.886 143.5 0.0802 62.4 0.9445 -20.0 0.700 0.8849 -49.5 2.780 139.0 0.0902 58.0 0.9279 -23.0 0.800 0.8605 -56.1 2.682 133.3 0.1000 54.2 0.9107 -25.7 0.900 0.8393 -61.8 2.616 128.7 0.1082 50.3 0.8939 -28.4 1.000 0.8156 -67.9 2.543 123.8 0.1153 46.7 0.8769 -31.0 1.100 0.7981 -73.5 2.449 119.3 0.1216 43.5 0.8589 -33.2 1.200 0.7823 -79.0 2.367 114.8 0.1279 40.2 0.8451 -35.6 1.300 0.7632 -84.6 2.281 110.9 0.1326 37.5 0.8282 -37.6 1.400 0.7512 -89.3 2.194 106.7 0.1364 34.7 0.8144 -39.8 1.500 0.7328 -94.1 2.126 102.9 0.1404 32.4 0.8008 -41.6 1.600 0.7174 -98.5 2.045 99.4 0.1435 30.5 0.7904 -43.4 1.700 0.7050 -103.5 1.991 95.7 0.1456 28.1 0.7762 -45.2 1.800 0.6847 -107.9 1.926 92.2 0.1476 26.5 0.7678 -46.8 1.900 0.6745 -111.4 1.860 89.0 0.1488 24.2 0.7583 -48.5 2.000 0.6624 -115.8 1.808 85.2 0.1516 22.7 0.7521 -50.0 2.200 0.6473 -122.3 1.687 79.4 0.1540 19.2 0.7398 -53.3 2.400 0.6288 -129.5 1.582 73.8 0.1535 16.7 0.7253 -56.3 2.600 0.6164 -134.9 1.492 68.5 0.1543 14.5 0.7175 -59.0 2.800 0.6063 -141.2 1.421 63.7 0.1547 12.7 0.7117 -61.9 3.000 0.5964 -146.7 1.343 58.8 0.1543 10.5 0.7077 -64.8 3.500 0.5702 -159.2 1.207 47.4 0.1543 7.4 0.7041 -71.5 4.000 0.5611 -170.5 1.094 37.0 0.1520 4.8 0.7041 -78.7 4.500 0.5493 177.4 1.007 27.3 0.1503 3.4 0.7108 -86.1 5.000 0.5384 167.0 0.925 18.2 0.1486 2.5 0.7198 -93.9 5.500 0.5361 156.4 0.856 9.2 0.1481 3.0 0.7236 -101.9 6.000 0.5323 145.8 0.800 1.7 0.1498 4.0 0.7249 -109.9 ! ! SIEMENS AG Semiconductor Group, Munich