! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 V IC = 15 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 0.7812 -5.4 31.002 173.9 0.0018 90.1 0.9832 -2.2 0.020 0.7698 -11.2 30.393 170.3 0.0040 81.0 0.9761 -4.6 0.050 0.7305 -26.3 28.423 157.3 0.0096 77.2 0.9378 -10.8 0.100 0.6297 -48.9 24.356 140.7 0.0176 70.5 0.8425 -17.9 0.150 0.5184 -66.2 20.095 127.2 0.0233 65.0 0.7487 -21.4 0.200 0.4451 -80.0 16.889 118.8 0.0278 63.3 0.6841 -22.5 0.250 0.3824 -91.7 14.332 111.8 0.0314 62.7 0.6318 -22.5 0.300 0.3409 -101.2 12.333 106.9 0.0351 64.3 0.6009 -22.3 0.400 0.2825 -117.7 9.659 99.6 0.0426 65.8 0.5581 -21.2 0.500 0.2501 -131.5 7.853 93.4 0.0500 66.9 0.5352 -20.5 0.600 0.2302 -143.9 6.659 88.9 0.0582 68.0 0.5219 -20.4 0.700 0.2185 -154.3 5.772 84.8 0.0661 68.5 0.5108 -20.6 0.800 0.2122 -163.8 5.071 81.3 0.0740 68.9 0.5042 -20.8 0.900 0.2036 -171.5 4.535 77.9 0.0827 69.2 0.4996 -21.2 1.000 0.2080 179.7 4.114 74.8 0.0902 69.2 0.4960 -22.1 1.100 0.2121 170.7 3.775 72.0 0.0989 69.1 0.4909 -23.1 1.200 0.2123 165.1 3.485 69.1 0.1074 69.0 0.4869 -24.0 1.300 0.2156 160.2 3.223 66.6 0.1158 68.7 0.4847 -25.0 1.400 0.2264 154.3 3.009 64.1 0.1236 68.5 0.4816 -26.3 1.500 0.2250 150.3 2.839 61.7 0.1324 67.8 0.4786 -27.5 1.600 0.2357 144.9 2.662 59.0 0.1409 67.2 0.4738 -28.6 1.700 0.2447 141.3 2.530 56.5 0.1499 66.7 0.4700 -30.0 1.800 0.2565 136.9 2.410 54.2 0.1585 66.2 0.4671 -31.4 1.900 0.2629 133.2 2.307 51.9 0.1673 65.6 0.4631 -33.0 2.000 0.2704 130.4 2.195 49.7 0.1762 64.9 0.4582 -34.6 2.200 0.2900 124.9 2.019 45.2 0.1944 63.4 0.4497 -37.5 2.400 0.3102 118.8 1.887 40.7 0.2127 61.9 0.4355 -41.0 2.600 0.3354 113.9 1.762 36.7 0.2306 60.0 0.4229 -44.5 2.800 0.3542 110.1 1.665 32.8 0.2494 58.3 0.4073 -48.5 3.000 0.3783 105.9 1.570 28.8 0.2681 56.5 0.3938 -52.4 3.500 0.4399 98.3 1.393 19.4 0.3177 51.6 0.3493 -65.5 4.000 0.5043 91.8 1.257 10.7 0.3668 45.6 0.2979 -82.0 4.500 0.5502 86.0 1.140 2.2 0.4126 39.3 0.2588 -102.2 5.000 0.5964 80.0 1.039 -5.5 0.4576 32.7 0.2327 -127.1 5.500 0.6283 73.1 0.921 -9.7 0.4832 28.1 0.2306 -140.4 6.000 0.6482 68.6 0.878 -15.7 0.5436 21.3 0.2739 -171.2 ! ! SIEMENS AG Semiconductor Group, Munich