! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 12 V IC = 6 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 0.8774 -3.0 16.788 176.0 0.0020 87.3 0.9913 -1.1 0.020 0.8679 -6.6 16.598 174.2 0.0041 83.9 0.9943 -2.6 0.050 0.8506 -16.4 16.128 165.6 0.0101 81.5 0.9760 -6.4 0.100 0.8023 -32.1 15.173 154.0 0.0197 73.8 0.9375 -11.9 0.150 0.7284 -45.6 13.784 142.2 0.0271 67.1 0.8773 -16.1 0.200 0.6636 -57.6 12.546 133.7 0.0332 63.9 0.8256 -18.8 0.250 0.5953 -68.5 11.257 125.8 0.0383 60.6 0.7746 -20.8 0.300 0.5309 -77.2 10.070 119.7 0.0420 59.8 0.7361 -21.8 0.400 0.4471 -93.1 8.291 110.4 0.0486 57.8 0.6740 -22.6 0.500 0.3816 -107.2 6.929 102.4 0.0547 58.2 0.6346 -22.7 0.600 0.3406 -119.0 5.974 96.6 0.0609 58.4 0.6102 -22.9 0.700 0.3059 -129.8 5.238 91.4 0.0667 59.9 0.5912 -23.1 0.800 0.2874 -139.4 4.631 87.0 0.0729 60.4 0.5773 -23.3 0.900 0.2665 -149.1 4.162 82.8 0.0793 61.4 0.5685 -23.6 1.000 0.2548 -158.9 3.794 79.2 0.0852 62.4 0.5615 -24.2 1.100 0.2564 -167.7 3.497 75.8 0.0922 62.9 0.5541 -25.1 1.200 0.2536 -176.6 3.234 72.4 0.0992 63.6 0.5484 -25.9 1.300 0.2502 177.3 2.990 69.6 0.1061 63.8 0.5441 -26.7 1.400 0.2535 170.4 2.797 66.8 0.1126 64.4 0.5412 -27.8 1.500 0.2570 164.8 2.638 64.0 0.1201 64.4 0.5374 -28.9 1.600 0.2641 158.4 2.481 60.9 0.1276 64.4 0.5326 -30.0 1.700 0.2677 152.7 2.356 58.3 0.1353 64.7 0.5277 -31.1 1.800 0.2777 147.5 2.246 56.0 0.1433 64.5 0.5251 -32.4 1.900 0.2857 143.5 2.155 53.4 0.1512 64.5 0.5220 -34.0 2.000 0.2923 139.3 2.053 50.9 0.1596 64.2 0.5165 -35.4 2.200 0.3122 131.6 1.886 46.1 0.1766 63.6 0.5096 -38.3 2.400 0.3278 124.6 1.764 41.4 0.1942 62.8 0.4972 -41.6 2.600 0.3557 118.2 1.645 37.1 0.2118 61.6 0.4872 -45.0 2.800 0.3745 113.6 1.556 33.1 0.2307 60.4 0.4721 -49.0 3.000 0.4016 108.7 1.468 29.0 0.2501 59.1 0.4621 -52.9 3.500 0.4605 99.3 1.300 19.3 0.3025 54.8 0.4230 -65.7 4.000 0.5203 92.2 1.173 10.5 0.3565 49.3 0.3764 -81.8 4.500 0.5685 85.5 1.061 2.0 0.4097 42.6 0.3335 -101.0 5.000 0.6139 77.3 0.934 -3.8 0.4435 37.3 0.3100 -114.0 5.500 0.6301 73.0 0.885 -9.7 0.5132 30.2 0.3269 -144.0 6.000 0.6552 67.6 0.825 -15.3 0.5626 22.6 0.3427 -167.6 ! ! SIEMENS AG Semiconductor Group, Munich