! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2 V IC = 2.5 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 0.9163 -2.8 8.400 177.1 0.0036 91.2 0.9935 -1.2 0.020 0.9065 -5.4 8.407 175.9 0.0070 87.6 0.9936 -2.6 0.050 0.9033 -13.4 8.226 169.2 0.0182 82.0 0.9842 -6.3 0.100 0.8805 -26.4 7.950 160.2 0.0355 75.4 0.9617 -12.2 0.150 0.8353 -39.2 7.585 150.0 0.0505 68.1 0.9189 -17.7 0.200 0.7938 -50.4 7.158 142.3 0.0631 63.1 0.8743 -21.9 0.250 0.7453 -61.6 6.689 134.3 0.0735 58.1 0.8240 -25.8 0.300 0.6963 -70.9 6.205 127.8 0.0819 54.8 0.7788 -28.7 0.400 0.6192 -88.3 5.349 117.2 0.0943 48.8 0.6959 -32.9 0.500 0.5584 -103.0 4.596 107.9 0.1028 45.2 0.6322 -35.4 0.600 0.5131 -116.3 4.065 100.4 0.1097 42.8 0.5864 -37.3 0.700 0.4832 -127.3 3.628 94.0 0.1149 42.1 0.5482 -38.5 0.800 0.4571 -137.8 3.240 88.4 0.1198 41.5 0.5189 -39.6 0.900 0.4357 -147.0 2.933 83.4 0.1242 41.6 0.4979 -40.3 1.000 0.4250 -155.9 2.690 78.8 0.1281 41.8 0.4808 -41.5 1.100 0.4224 -164.8 2.494 74.4 0.1332 42.6 0.4659 -42.8 1.200 0.4172 -172.1 2.317 70.4 0.1377 43.3 0.4529 -44.0 1.300 0.4164 -178.7 2.160 66.8 0.1431 44.1 0.4418 -45.1 1.400 0.4166 175.2 2.026 63.3 0.1482 45.2 0.4328 -46.7 1.500 0.4173 168.9 1.926 60.0 0.1544 46.1 0.4232 -48.1 1.600 0.4217 163.3 1.812 56.3 0.1609 46.9 0.4141 -49.5 1.700 0.4262 157.7 1.724 53.3 0.1681 48.0 0.4043 -51.2 1.800 0.4363 152.6 1.650 50.5 0.1758 48.3 0.3990 -52.8 1.900 0.4423 148.2 1.582 47.5 0.1843 48.9 0.3935 -55.3 2.000 0.4482 143.9 1.513 44.5 0.1926 49.1 0.3849 -57.3 2.200 0.4668 136.1 1.400 39.1 0.2110 49.7 0.3714 -61.8 2.400 0.4793 128.5 1.311 33.9 0.2307 49.7 0.3549 -67.5 2.600 0.5039 121.3 1.226 29.4 0.2520 49.0 0.3394 -72.9 2.800 0.5216 115.5 1.159 25.1 0.2735 48.0 0.3236 -80.2 3.000 0.5448 109.9 1.098 20.7 0.2969 46.8 0.3095 -87.4 3.500 0.5946 98.4 0.966 11.5 0.3569 42.0 0.2819 -111.2 4.000 0.6369 89.3 0.871 3.7 0.4146 35.3 0.2728 -141.1 4.500 0.6688 81.6 0.789 -3.1 0.4625 27.7 0.2897 -169.8 5.000 0.6916 73.6 0.703 -6.1 0.4857 22.6 0.2844 175.9 5.500 0.6967 68.7 0.689 -10.4 0.5440 14.8 0.3849 153.7 6.000 0.7040 63.9 0.662 -14.1 0.5757 7.5 0.4374 137.5 ! ! SIEMENS AG Semiconductor Group, Munich