! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 4 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 0.8674 -1.9 11.538 178.2 0.0016 87.8 0.9936 -0.8 0.020 0.8629 -3.1 11.284 176.4 0.0030 88.5 0.9884 -1.6 0.050 0.8614 -8.2 11.352 171.7 0.0084 84.9 0.9882 -3.9 0.100 0.8377 -16.4 11.242 163.8 0.0158 80.9 0.9716 -7.6 0.150 0.8041 -24.2 10.696 155.4 0.0233 76.7 0.9474 -11.1 0.200 0.7619 -31.4 10.329 148.4 0.0300 73.5 0.9172 -13.9 0.250 0.7161 -38.4 9.815 141.6 0.0357 70.1 0.8845 -16.6 0.300 0.6695 -44.5 9.159 135.9 0.0408 68.1 0.8516 -18.5 0.400 0.5807 -54.6 8.095 126.3 0.0501 64.6 0.7975 -21.3 0.500 0.4929 -63.5 7.118 117.3 0.0573 62.9 0.7462 -23.2 0.600 0.4333 -71.2 6.353 110.5 0.0640 61.8 0.7063 -24.3 0.700 0.3759 -77.2 5.684 104.9 0.0701 61.2 0.6775 -25.2 0.800 0.3310 -84.3 5.111 99.6 0.0766 60.7 0.6550 -25.8 0.900 0.2846 -88.9 4.661 94.9 0.0828 61.0 0.6378 -26.4 1.000 0.2442 -95.2 4.296 90.8 0.0887 61.5 0.6225 -26.9 1.100 0.2162 -102.4 3.985 87.2 0.0946 61.6 0.6098 -27.6 1.200 0.1865 -108.3 3.701 83.6 0.1011 62.0 0.5991 -28.2 1.300 0.1642 -114.3 3.444 80.5 0.1074 62.1 0.5913 -29.0 1.400 0.1447 -122.2 3.225 77.5 0.1131 62.3 0.5846 -29.8 1.500 0.1341 -129.0 3.054 74.9 0.1200 62.3 0.5782 -30.6 1.600 0.1192 -141.4 2.878 71.7 0.1272 62.4 0.5725 -31.5 1.700 0.1047 -151.3 2.738 69.0 0.1338 62.3 0.5666 -32.5 1.800 0.0965 -163.9 2.617 66.4 0.1407 62.1 0.5619 -33.6 1.900 0.0979 -177.1 2.511 63.9 0.1482 62.2 0.5569 -34.8 2.000 0.0981 172.5 2.398 61.4 0.1555 62.1 0.5522 -35.8 2.200 0.1062 153.4 2.212 56.8 0.1705 61.4 0.5425 -38.4 2.400 0.1234 136.3 2.077 52.0 0.1863 60.9 0.5305 -41.0 2.600 0.1498 126.7 1.945 48.0 0.2025 59.7 0.5186 -44.0 2.800 0.1724 117.9 1.847 44.0 0.2194 58.9 0.5072 -47.2 3.000 0.1967 113.3 1.749 39.7 0.2362 57.6 0.4938 -50.6 3.500 0.2657 103.1 1.558 30.2 0.2807 53.9 0.4578 -61.0 4.000 0.3276 96.1 1.426 21.0 0.3294 49.4 0.4178 -74.3 4.500 0.3871 90.4 1.318 12.6 0.3797 44.1 0.3784 -90.0 5.000 0.4401 85.2 1.230 4.2 0.4299 38.2 0.3484 -107.7 5.500 0.4886 80.1 1.132 -3.4 0.4769 31.6 0.3270 -128.2 6.000 0.5290 75.0 1.058 -10.4 0.5219 24.6 0.3208 -149.4 ! ! SIEMENS AG Semiconductor Group, Munich