! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 12 V IC = 1.2 mA ! Common Emitter S-Parameters: August 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9672 -1.5 4.238 177.9 0.0019 88.1 0.9989 -0.4 0.020 0.9638 -3.2 4.219 177.4 0.0044 90.0 0.9918 -1.0 0.050 0.9584 -8.1 4.154 173.0 0.0106 83.3 0.9950 -2.4 0.100 0.9522 -16.1 4.125 167.7 0.0217 80.5 0.9911 -4.8 0.150 0.9353 -24.4 4.042 160.5 0.0322 75.8 0.9791 -7.2 0.200 0.9161 -31.6 3.983 155.2 0.0415 72.0 0.9690 -9.3 0.250 0.8952 -39.6 3.914 149.0 0.0506 66.9 0.9527 -11.5 0.300 0.8607 -46.9 3.763 143.5 0.0583 64.2 0.9367 -13.2 0.400 0.8082 -60.5 3.503 133.8 0.0713 56.9 0.9014 -16.3 0.500 0.7452 -73.5 3.218 124.0 0.0810 51.5 0.8670 -18.8 0.600 0.6935 -85.9 2.987 116.0 0.0883 47.2 0.8379 -20.9 0.700 0.6491 -96.6 2.760 108.9 0.0925 43.7 0.8105 -22.6 0.800 0.6049 -107.2 2.536 102.3 0.0957 40.9 0.7885 -24.0 0.900 0.5666 -116.8 2.346 96.2 0.0979 39.6 0.7713 -25.1 1.000 0.5414 -127.0 2.198 90.7 0.0982 38.4 0.7560 -26.3 1.100 0.5188 -136.6 2.065 85.7 0.0989 38.0 0.7424 -27.6 1.200 0.5034 -145.3 1.937 81.0 0.0985 38.5 0.7325 -28.8 1.300 0.4883 -153.1 1.816 76.8 0.0985 39.3 0.7232 -29.9 1.400 0.4796 -161.4 1.710 72.6 0.0977 41.0 0.7162 -31.2 1.500 0.4766 -169.0 1.629 69.0 0.0982 43.0 0.7101 -32.4 1.600 0.4716 -176.6 1.533 64.9 0.0991 45.1 0.7041 -33.7 1.700 0.4686 176.2 1.469 61.5 0.1009 48.2 0.6973 -35.0 1.800 0.4666 169.9 1.411 58.3 0.1038 50.8 0.6947 -36.3 1.900 0.4730 163.6 1.353 54.8 0.1070 54.1 0.6916 -38.0 2.000 0.4767 157.8 1.293 51.7 0.1121 56.8 0.6874 -39.5 2.200 0.4903 147.2 1.189 46.0 0.1240 62.0 0.6826 -42.9 2.400 0.5038 137.0 1.114 40.7 0.1407 66.0 0.6731 -46.7 2.600 0.5254 127.6 1.033 35.8 0.1601 68.2 0.6664 -50.6 2.800 0.5423 120.3 0.980 31.8 0.1828 69.7 0.6569 -55.3 3.000 0.5626 113.3 0.919 27.7 0.2083 70.1 0.6510 -59.9 3.500 0.6083 98.8 0.806 19.7 0.2826 67.2 0.6280 -74.8 4.000 0.6458 88.3 0.729 13.3 0.3643 60.2 0.5915 -93.1 4.500 0.6619 79.4 0.676 8.5 0.4435 50.8 0.5541 -114.2 5.000 0.6869 71.2 0.614 6.1 0.4903 42.5 0.4985 -129.9 5.500 0.6781 65.6 0.623 3.6 0.5715 32.9 0.5269 -155.1 6.000 0.6777 60.8 0.626 -0.2 0.6216 23.3 0.5289 -176.6 ! ! SIEMENS AG Semiconductor Group, Munich