! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.75 V IC = 0.5 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 0.9811 -1.4 1.859 178.0 0.0037 92.2 0.9977 -0.5 0.020 0.9689 -3.0 1.861 177.8 0.0077 87.9 0.9999 -1.2 0.050 0.9762 -7.4 1.853 173.4 0.0198 84.7 0.9982 -2.7 0.100 0.9694 -14.8 1.830 168.3 0.0396 81.3 0.9968 -5.4 0.150 0.9626 -22.3 1.820 161.4 0.0583 75.4 0.9866 -8.0 0.200 0.9527 -29.1 1.801 156.1 0.0760 71.7 0.9774 -10.4 0.250 0.9381 -36.7 1.772 150.1 0.0930 66.9 0.9653 -13.0 0.300 0.9166 -43.5 1.740 144.4 0.1084 63.2 0.9542 -15.2 0.400 0.8827 -57.1 1.668 134.4 0.1353 54.9 0.9216 -19.5 0.500 0.8346 -69.4 1.562 123.7 0.1566 47.8 0.8903 -23.2 0.600 0.8051 -81.5 1.481 114.9 0.1730 41.4 0.8619 -26.6 0.700 0.7669 -92.9 1.408 106.7 0.1839 35.7 0.8342 -29.5 0.800 0.7329 -103.7 1.323 99.1 0.1915 30.8 0.8065 -32.1 0.900 0.7023 -113.6 1.247 91.9 0.1945 26.5 0.7841 -34.5 1.000 0.6845 -123.4 1.182 85.4 0.1945 22.6 0.7647 -36.8 1.100 0.6626 -133.2 1.127 79.3 0.1934 19.4 0.7484 -39.2 1.200 0.6510 -141.9 1.068 73.7 0.1892 16.5 0.7341 -41.7 1.300 0.6401 -150.1 1.016 68.9 0.1846 14.6 0.7216 -43.6 1.400 0.6332 -157.9 0.967 64.0 0.1768 13.0 0.7115 -46.0 1.500 0.6265 -165.4 0.936 59.9 0.1695 12.6 0.6999 -48.0 1.600 0.6237 -173.0 0.885 55.1 0.1621 12.4 0.6932 -50.2 1.700 0.6206 179.8 0.858 51.4 0.1529 14.0 0.6784 -52.7 1.800 0.6251 173.2 0.824 48.1 0.1473 15.6 0.6739 -54.8 1.900 0.6273 166.7 0.796 44.3 0.1398 18.7 0.6691 -57.7 2.000 0.6297 161.1 0.763 41.3 0.1360 22.1 0.6641 -60.2 2.200 0.6408 150.1 0.710 35.9 0.1319 32.6 0.6527 -66.1 2.400 0.6503 139.4 0.666 30.8 0.1413 43.5 0.6397 -72.8 2.600 0.6678 129.9 0.625 27.5 0.1629 51.4 0.6274 -79.3 2.800 0.6786 121.8 0.594 24.7 0.1933 56.2 0.6181 -87.5 3.000 0.6903 113.8 0.569 22.5 0.2308 58.2 0.6068 -95.5 3.500 0.7137 98.2 0.533 19.2 0.3339 53.8 0.5836 -119.3 4.000 0.7270 86.9 0.527 16.6 0.4276 43.7 0.5591 -146.1 4.500 0.7211 78.0 0.542 12.4 0.4958 32.3 0.5456 -172.0 5.000 0.7250 70.1 0.538 9.8 0.5194 24.7 0.4835 171.9 5.500 0.7131 65.2 0.576 4.7 0.5798 15.1 0.5673 151.7 6.000 0.7076 60.9 0.594 -0.6 0.6054 6.8 0.5898 135.4 ! ! SIEMENS AG Semiconductor Group, Munich