! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2 V IC = 3.5 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 0.8904 -3.3 11.380 176.6 0.0037 90.0 0.9928 -1.4 0.020 0.8811 -6.6 11.316 175.1 0.0074 87.5 0.9898 -3.2 0.050 0.8689 -15.9 10.997 167.2 0.0177 81.1 0.9772 -7.9 0.100 0.8343 -31.5 10.523 156.5 0.0343 73.1 0.9387 -15.1 0.150 0.7790 -45.7 9.751 145.2 0.0478 65.9 0.8794 -21.4 0.200 0.7268 -58.6 9.022 136.7 0.0586 61.2 0.8207 -25.9 0.250 0.6700 -70.6 8.234 128.5 0.0672 56.3 0.7578 -29.9 0.300 0.6169 -80.5 7.470 122.1 0.0739 53.7 0.7065 -32.5 0.400 0.5417 -97.9 6.248 112.0 0.0845 49.5 0.6196 -35.9 0.500 0.4848 -113.1 5.290 103.2 0.0918 47.3 0.5565 -37.6 0.600 0.4489 -126.2 4.598 96.5 0.0994 46.8 0.5137 -38.8 0.700 0.4223 -137.1 4.051 90.7 0.1051 46.7 0.4800 -39.6 0.800 0.4078 -147.2 3.600 85.6 0.1119 47.0 0.4538 -40.2 0.900 0.3916 -155.6 3.246 80.9 0.1180 47.5 0.4360 -40.6 1.000 0.3787 -165.0 2.970 76.7 0.1241 48.1 0.4212 -41.4 1.100 0.3817 -172.7 2.744 72.7 0.1311 48.8 0.4076 -42.6 1.200 0.3806 -179.8 2.544 69.0 0.1384 49.6 0.3960 -43.6 1.300 0.3814 174.8 2.363 65.7 0.1461 50.0 0.3867 -44.7 1.400 0.3825 168.4 2.212 62.5 0.1528 50.6 0.3791 -46.2 1.500 0.3863 163.3 2.096 59.4 0.1610 51.2 0.3702 -47.6 1.600 0.3944 158.0 1.969 56.0 0.1699 51.2 0.3626 -49.0 1.700 0.3984 153.1 1.877 53.0 0.1781 51.6 0.3535 -50.6 1.800 0.4076 148.0 1.799 50.4 0.1874 51.4 0.3483 -52.2 1.900 0.4129 144.3 1.719 47.4 0.1966 51.6 0.3417 -54.7 2.000 0.4213 140.4 1.639 44.8 0.2063 51.3 0.3328 -56.7 2.200 0.4392 133.0 1.514 39.4 0.2257 50.8 0.3204 -61.1 2.400 0.4555 125.6 1.423 34.4 0.2464 49.8 0.3014 -66.8 2.600 0.4806 119.1 1.327 29.9 0.2671 48.5 0.2872 -72.2 2.800 0.4973 114.2 1.258 25.6 0.2886 47.0 0.2689 -79.8 3.000 0.5198 109.0 1.188 21.3 0.3101 45.3 0.2556 -87.2 3.500 0.5731 98.3 1.050 11.7 0.3654 39.9 0.2260 -112.9 4.000 0.6196 89.7 0.941 3.7 0.4167 33.3 0.2193 -145.4 4.500 0.6564 82.4 0.854 -3.6 0.4598 26.1 0.2410 -175.3 5.000 0.6836 74.2 0.754 -7.1 0.4801 21.5 0.2431 171.7 5.500 0.6924 69.7 0.733 -11.9 0.5357 14.1 0.3462 150.4 6.000 0.7001 64.7 0.695 -16.1 0.5667 7.1 0.4019 135.0 ! ! SIEMENS AG Semiconductor Group, Munich