! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.5 V IC = 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 0.8503 -4.3 15.362 176.0 0.0038 90.9 0.9873 -2.1 0.020 0.8393 -8.7 15.223 173.7 0.0076 85.3 0.9857 -4.6 0.050 0.8234 -20.9 14.697 163.8 0.0191 78.8 0.9614 -11.1 0.100 0.7681 -40.7 13.630 150.6 0.0352 69.7 0.8941 -20.7 0.150 0.6925 -57.6 12.133 137.9 0.0482 62.2 0.8059 -28.4 0.200 0.6316 -72.6 10.821 128.8 0.0575 57.9 0.7271 -33.3 0.250 0.5758 -85.2 9.552 120.7 0.0648 53.9 0.6511 -37.3 0.300 0.5242 -95.9 8.458 114.6 0.0705 52.3 0.5946 -39.5 0.400 0.4638 -114.1 6.855 105.3 0.0799 50.2 0.5055 -42.1 0.500 0.4202 -129.2 5.678 97.5 0.0882 50.0 0.4468 -43.0 0.600 0.4008 -141.8 4.871 91.4 0.0964 50.4 0.4082 -43.7 0.700 0.3837 -151.2 4.259 86.2 0.1043 51.1 0.3794 -44.1 0.800 0.3796 -160.0 3.762 81.7 0.1134 51.6 0.3569 -44.4 0.900 0.3695 -168.2 3.379 77.4 0.1219 52.4 0.3412 -44.5 1.000 0.3675 -176.3 3.082 73.7 0.1304 52.7 0.3282 -45.3 1.100 0.3692 176.8 2.838 69.9 0.1397 53.1 0.3165 -46.5 1.200 0.3747 170.1 2.630 66.5 0.1492 53.2 0.3058 -47.6 1.300 0.3718 165.8 2.437 63.3 0.1588 53.3 0.2971 -48.6 1.400 0.3805 160.7 2.279 60.3 0.1678 53.3 0.2902 -50.2 1.500 0.3842 156.5 2.165 57.4 0.1779 53.2 0.2826 -51.8 1.600 0.3929 151.3 2.032 54.0 0.1880 52.9 0.2742 -53.3 1.700 0.3991 147.2 1.932 51.2 0.1981 52.6 0.2655 -55.1 1.800 0.4082 142.4 1.849 48.7 0.2082 52.0 0.2603 -57.0 1.900 0.4137 138.9 1.769 46.0 0.2189 51.6 0.2536 -59.8 2.000 0.4190 135.6 1.688 43.2 0.2295 50.8 0.2441 -62.3 2.200 0.4368 129.3 1.559 38.2 0.2507 49.4 0.2310 -67.2 2.400 0.4547 122.6 1.463 33.1 0.2719 47.7 0.2119 -74.3 2.600 0.4772 116.7 1.367 28.7 0.2928 45.7 0.1977 -80.8 2.800 0.4964 112.0 1.294 24.5 0.3138 43.6 0.1800 -90.8 3.000 0.5213 107.4 1.220 20.2 0.3339 41.5 0.1681 -100.7 3.500 0.5713 97.2 1.077 10.7 0.3847 35.5 0.1538 -135.4 4.000 0.6200 89.0 0.967 2.6 0.4288 28.8 0.1771 -172.5 4.500 0.6555 81.9 0.876 -4.9 0.4639 21.8 0.2220 160.6 5.000 0.6816 74.1 0.780 -8.3 0.4791 17.7 0.2268 151.1 5.500 0.6914 69.8 0.753 -13.6 0.5292 10.7 0.3358 136.6 6.000 0.7061 64.7 0.714 -18.0 0.5563 4.3 0.3935 124.3 ! ! SIEMENS AG Semiconductor Group, Munich