! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 4 V IC = 7 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 0.8224 -4.2 19.930 175.5 0.0025 92.2 0.9879 -2.0 0.020 0.8070 -8.4 19.715 173.0 0.0052 83.3 0.9886 -4.2 0.050 0.7882 -21.0 18.901 162.8 0.0134 79.3 0.9600 -9.9 0.100 0.7258 -40.2 17.325 149.0 0.0250 72.1 0.8920 -18.0 0.150 0.6392 -56.5 15.203 136.2 0.0339 64.7 0.8045 -24.0 0.200 0.5733 -70.0 13.383 127.3 0.0404 61.4 0.7321 -27.3 0.250 0.5078 -82.5 11.746 119.5 0.0460 58.7 0.6647 -29.6 0.300 0.4584 -92.7 10.337 113.7 0.0502 57.9 0.6167 -30.7 0.400 0.3916 -109.9 8.305 105.0 0.0590 57.4 0.5453 -31.2 0.500 0.3463 -124.5 6.847 97.7 0.0665 58.0 0.5015 -30.9 0.600 0.3190 -136.4 5.860 92.1 0.0746 59.0 0.4731 -30.9 0.700 0.3013 -147.2 5.109 87.3 0.0819 59.7 0.4523 -30.9 0.800 0.2887 -156.9 4.506 83.2 0.0909 60.0 0.4364 -30.9 0.900 0.2771 -164.9 4.039 79.2 0.0993 60.6 0.4269 -31.1 1.000 0.2809 -173.6 3.678 75.8 0.1077 61.1 0.4182 -31.7 1.100 0.2841 178.6 3.384 72.5 0.1172 61.3 0.4098 -32.6 1.200 0.2823 172.1 3.127 69.3 0.1255 61.6 0.4025 -33.4 1.300 0.2863 166.3 2.898 66.4 0.1350 61.3 0.3970 -34.3 1.400 0.2925 161.0 2.703 63.6 0.1437 61.2 0.3919 -35.6 1.500 0.2934 156.6 2.559 60.9 0.1531 60.9 0.3862 -36.9 1.600 0.3019 151.2 2.399 57.9 0.1625 60.5 0.3793 -38.2 1.700 0.3105 146.8 2.278 55.2 0.1718 60.1 0.3730 -39.5 1.800 0.3181 142.3 2.176 52.9 0.1815 59.4 0.3692 -41.0 1.900 0.3267 138.5 2.082 50.2 0.1912 59.0 0.3636 -43.0 2.000 0.3343 135.1 1.988 47.7 0.2013 58.2 0.3554 -44.8 2.200 0.3537 128.6 1.829 43.0 0.2209 56.7 0.3441 -48.2 2.400 0.3682 122.1 1.713 38.3 0.2412 55.2 0.3265 -52.6 2.600 0.3972 116.9 1.597 33.9 0.2603 53.2 0.3119 -56.8 2.800 0.4162 112.2 1.514 29.8 0.2808 51.3 0.2917 -62.3 3.000 0.4405 108.0 1.427 25.6 0.3008 49.3 0.2764 -67.8 3.500 0.4983 98.5 1.259 16.1 0.3521 43.7 0.2301 -87.0 4.000 0.5562 91.1 1.133 7.3 0.4000 37.3 0.1895 -114.7 4.500 0.5983 84.3 1.025 -0.8 0.4416 30.2 0.1758 -147.3 5.000 0.6374 76.4 0.904 -5.8 0.4631 25.8 0.1751 -161.0 5.500 0.6533 72.3 0.868 -11.7 0.5207 18.8 0.2554 168.2 6.000 0.6760 67.0 0.810 -16.9 0.5553 12.0 0.3080 149.3 ! ! SIEMENS AG Semiconductor Group, Munich