! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2 V IC = 4 mA ! Common Emitter S-Parameters: May 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.8583 -1.9 11.457 178.3 0.0014 95.7 0.9935 -0.9 0.020 0.8525 -3.5 11.443 176.3 0.0032 92.5 0.9874 -1.7 0.050 0.8551 -8.8 11.357 171.4 0.0087 84.6 0.9873 -4.1 0.100 0.8301 -17.4 11.143 163.3 0.0167 81.5 0.9685 -8.0 0.150 0.7876 -25.8 10.697 154.5 0.0244 75.0 0.9420 -11.6 0.200 0.7484 -33.2 10.195 147.5 0.0309 72.9 0.9116 -14.5 0.250 0.6981 -40.7 9.701 140.4 0.0370 69.2 0.8783 -17.1 0.300 0.6478 -47.2 9.081 134.3 0.0423 67.3 0.8429 -19.1 0.400 0.5652 -57.6 7.927 125.0 0.0511 63.6 0.7844 -21.9 0.500 0.4794 -67.3 6.923 116.0 0.0586 61.7 0.7370 -23.5 0.600 0.4124 -75.9 6.188 109.0 0.0655 60.8 0.6972 -24.6 0.700 0.3567 -83.2 5.539 103.2 0.0714 60.6 0.6673 -25.5 0.800 0.3152 -90.2 4.960 98.0 0.0773 60.4 0.6446 -26.0 0.900 0.2735 -95.7 4.507 93.6 0.0837 60.3 0.6285 -26.5 1.000 0.2392 -102.2 4.148 89.5 0.0897 60.7 0.6144 -27.2 1.100 0.2105 -110.6 3.844 85.8 0.0961 61.1 0.6027 -27.8 1.200 0.1853 -119.0 3.571 82.2 0.1024 61.5 0.5929 -28.6 1.300 0.1622 -125.7 3.323 79.1 0.1086 61.7 0.5837 -29.2 1.400 0.1467 -135.1 3.114 76.0 0.1147 62.0 0.5775 -30.1 1.500 0.1355 -142.1 2.950 73.3 0.1215 62.1 0.5710 -31.0 1.600 0.1255 -155.0 2.777 70.1 0.1283 62.0 0.5654 -31.8 1.700 0.1229 -165.3 2.640 67.5 0.1352 62.1 0.5599 -32.9 1.800 0.1166 -177.5 2.523 65.1 0.1427 61.9 0.5556 -34.0 1.900 0.1213 173.3 2.418 62.4 0.1504 61.9 0.5508 -35.2 2.000 0.1245 163.5 2.308 59.8 0.1573 61.7 0.5461 -36.4 2.200 0.1366 147.5 2.130 55.1 0.1731 61.2 0.5355 -39.0 2.400 0.1526 134.5 1.999 50.4 0.1887 60.6 0.5245 -41.8 2.600 0.1796 124.9 1.877 46.2 0.2057 59.7 0.5115 -44.9 2.800 0.2017 117.7 1.780 42.2 0.2227 58.6 0.5013 -48.2 3.000 0.2258 112.5 1.685 37.9 0.2403 57.4 0.4868 -51.7 3.500 0.2957 102.3 1.499 28.2 0.2864 53.5 0.4504 -62.6 4.000 0.3568 95.5 1.373 19.3 0.3354 49.0 0.4107 -76.4 4.500 0.4155 89.8 1.265 10.7 0.3865 43.5 0.3728 -92.8 5.000 0.4666 84.2 1.178 2.7 0.4368 37.4 0.3436 -111.4 5.500 0.5105 78.9 1.084 -4.8 0.4844 30.7 0.3256 -132.5 6.000 0.5481 73.8 1.013 -11.6 0.5291 23.6 0.3242 -154.0 ! ! SIEMENS AG Semiconductor Group, Munich