! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3 V IC = 8 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 0.7545 -2.5 18.666 177.2 0.0014 94.3 0.9872 -1.0 0.020 0.7495 -5.5 18.352 174.5 0.0031 86.9 0.9788 -2.3 0.050 0.7395 -12.9 18.245 167.3 0.0077 82.9 0.9729 -5.8 0.100 0.6927 -25.2 17.343 155.8 0.0148 78.5 0.9355 -10.9 0.150 0.6343 -35.7 15.869 144.7 0.0214 73.1 0.8859 -14.9 0.200 0.5701 -45.3 14.494 136.1 0.0260 71.2 0.8362 -17.6 0.250 0.5073 -54.0 13.105 128.5 0.0308 68.2 0.7887 -19.5 0.300 0.4547 -60.2 11.777 122.5 0.0347 68.5 0.7496 -20.5 0.400 0.3662 -71.2 9.757 113.6 0.0423 66.8 0.6942 -21.6 0.500 0.2942 -80.0 8.175 105.6 0.0493 66.8 0.6530 -22.0 0.600 0.2488 -88.6 7.078 99.9 0.0559 67.1 0.6252 -22.1 0.700 0.2057 -95.9 6.211 95.1 0.0628 67.5 0.6073 -22.3 0.800 0.1769 -103.6 5.506 90.7 0.0698 67.7 0.5936 -22.5 0.900 0.1496 -111.2 4.945 86.8 0.0773 67.9 0.5843 -22.9 1.000 0.1232 -120.6 4.513 83.5 0.0838 68.1 0.5761 -23.4 1.100 0.1075 -131.7 4.156 80.4 0.0911 68.5 0.5694 -24.2 1.200 0.0966 -145.0 3.841 77.4 0.0987 68.7 0.5638 -24.9 1.300 0.0858 -155.1 3.556 74.7 0.1061 68.3 0.5589 -25.7 1.400 0.0799 -169.3 3.324 72.0 0.1132 68.3 0.5554 -26.7 1.500 0.0786 -175.7 3.136 69.7 0.1211 68.0 0.5513 -27.7 1.600 0.0838 165.8 2.948 66.9 0.1288 67.5 0.5476 -28.7 1.700 0.0907 154.3 2.801 64.5 0.1363 67.3 0.5431 -29.8 1.800 0.0988 145.8 2.674 62.3 0.1440 66.8 0.5392 -31.0 1.900 0.1055 139.9 2.557 59.9 0.1521 66.5 0.5360 -32.4 2.000 0.1147 134.0 2.437 57.7 0.1603 66.0 0.5328 -33.6 2.200 0.1336 124.6 2.245 53.4 0.1767 64.8 0.5231 -36.4 2.400 0.1552 116.5 2.103 49.0 0.1938 63.8 0.5134 -39.2 2.600 0.1809 110.7 1.971 45.2 0.2108 62.2 0.5010 -42.4 2.800 0.2018 106.8 1.867 41.4 0.2282 60.7 0.4902 -45.8 3.000 0.2270 103.7 1.765 37.5 0.2461 59.2 0.4760 -49.3 3.500 0.2906 97.1 1.570 28.2 0.2922 54.7 0.4379 -60.2 4.000 0.3491 92.5 1.437 19.5 0.3410 49.7 0.3962 -73.8 4.500 0.4045 88.1 1.323 11.1 0.3905 43.9 0.3547 -89.9 5.000 0.4547 83.0 1.235 3.0 0.4399 37.8 0.3234 -108.3 5.500 0.5025 78.4 1.135 -4.4 0.4863 31.0 0.3031 -129.5 6.000 0.5416 73.6 1.057 -11.3 0.5292 23.9 0.2984 -151.5 ! ! SIEMENS AG Semiconductor Group, Munich