! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 5 V IC = 9 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 0.7998 -4.8 23.491 175.0 0.0024 90.4 0.9871 -2.0 0.020 0.7893 -9.5 23.329 172.2 0.0047 84.7 0.9821 -4.5 0.050 0.7612 -23.0 22.166 161.0 0.0122 77.9 0.9503 -10.7 0.100 0.6880 -43.9 19.850 146.1 0.0225 70.6 0.8703 -19.0 0.150 0.5889 -60.8 17.086 132.9 0.0301 64.8 0.7747 -24.3 0.200 0.5187 -74.6 14.747 124.1 0.0359 62.2 0.7017 -26.9 0.250 0.4579 -87.0 12.748 116.4 0.0406 60.1 0.6377 -28.5 0.300 0.4088 -97.1 11.162 111.0 0.0451 59.7 0.5935 -29.0 0.400 0.3465 -113.5 8.854 102.8 0.0530 60.3 0.5306 -28.7 0.500 0.3077 -127.9 7.253 96.0 0.0609 61.3 0.4944 -28.1 0.600 0.2834 -140.3 6.193 90.7 0.0695 62.6 0.4711 -27.9 0.700 0.2699 -150.8 5.388 86.2 0.0776 63.2 0.4542 -27.8 0.800 0.2611 -160.8 4.745 82.3 0.0863 63.6 0.4410 -27.8 0.900 0.2484 -168.1 4.246 78.6 0.0953 64.1 0.4336 -28.0 1.000 0.2509 -176.7 3.854 75.3 0.1037 64.4 0.4267 -28.6 1.100 0.2570 176.1 3.542 72.2 0.1129 64.3 0.4200 -29.6 1.200 0.2604 169.1 3.278 69.1 0.1220 64.3 0.4133 -30.4 1.300 0.2594 163.9 3.028 66.4 0.1314 63.9 0.4088 -31.4 1.400 0.2685 158.7 2.831 63.7 0.1402 63.7 0.4048 -32.7 1.500 0.2672 154.0 2.678 61.1 0.1498 63.2 0.3996 -33.9 1.600 0.2769 149.4 2.514 58.2 0.1589 62.7 0.3936 -35.1 1.700 0.2873 144.9 2.383 55.6 0.1688 62.1 0.3875 -36.4 1.800 0.2919 140.1 2.275 53.3 0.1780 61.3 0.3838 -37.9 1.900 0.3031 136.5 2.178 50.8 0.1877 60.7 0.3784 -39.8 2.000 0.3110 133.4 2.073 48.4 0.1975 59.8 0.3714 -41.5 2.200 0.3296 127.6 1.910 43.7 0.2170 58.5 0.3598 -44.8 2.400 0.3462 121.2 1.787 39.0 0.2365 56.7 0.3434 -48.8 2.600 0.3727 115.6 1.667 34.9 0.2557 54.7 0.3288 -52.8 2.800 0.3926 111.7 1.577 30.9 0.2759 52.7 0.3092 -57.8 3.000 0.4166 107.2 1.491 26.6 0.2956 50.6 0.2938 -62.7 3.500 0.4773 98.7 1.316 17.2 0.3460 45.1 0.2450 -79.9 4.000 0.5353 91.6 1.186 8.3 0.3934 38.6 0.1974 -104.3 4.500 0.5829 84.8 1.074 -0.1 0.4348 31.8 0.1718 -134.8 5.000 0.6253 76.9 0.947 -5.3 0.4567 27.3 0.1655 -148.9 5.500 0.6432 72.9 0.904 -11.4 0.5145 20.4 0.2338 176.4 6.000 0.6664 67.9 0.845 -17.0 0.5517 13.7 0.2834 155.8 ! ! SIEMENS AG Semiconductor Group, Munich