! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2 V IC = 6 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 0.8322 -4.5 17.783 175.7 0.0034 89.6 0.9870 -2.2 0.020 0.8175 -8.9 17.580 173.2 0.0069 85.0 0.9872 -4.7 0.050 0.7989 -21.9 16.956 162.8 0.0170 78.7 0.9568 -11.4 0.100 0.7398 -42.0 15.494 148.9 0.0312 70.2 0.8824 -20.9 0.150 0.6552 -59.5 13.659 136.0 0.0421 62.7 0.7905 -28.1 0.200 0.5912 -74.5 12.052 127.0 0.0502 58.5 0.7089 -32.4 0.250 0.5371 -87.2 10.536 119.1 0.0564 55.6 0.6357 -35.7 0.300 0.4861 -97.5 9.279 113.2 0.0619 54.5 0.5820 -37.4 0.400 0.4236 -115.5 7.471 104.2 0.0706 53.3 0.4986 -39.0 0.500 0.3889 -130.4 6.163 96.8 0.0788 53.8 0.4452 -39.2 0.600 0.3641 -142.4 5.266 91.0 0.0879 54.3 0.4122 -39.4 0.700 0.3509 -152.9 4.592 86.0 0.0964 55.0 0.3870 -39.5 0.800 0.3439 -161.7 4.053 81.6 0.1055 55.5 0.3676 -39.6 0.900 0.3342 -169.2 3.645 77.7 0.1146 56.2 0.3535 -39.6 1.000 0.3362 -177.6 3.314 74.0 0.1233 56.8 0.3428 -40.3 1.100 0.3368 175.9 3.047 70.5 0.1330 56.8 0.3329 -41.5 1.200 0.3416 169.2 2.819 67.2 0.1427 57.0 0.3237 -42.3 1.300 0.3422 164.8 2.612 64.2 0.1524 56.8 0.3159 -43.3 1.400 0.3479 159.5 2.442 61.2 0.1621 56.7 0.3102 -44.8 1.500 0.3521 155.3 2.315 58.4 0.1720 56.2 0.3032 -46.3 1.600 0.3591 149.9 2.171 55.3 0.1819 55.8 0.2951 -47.8 1.700 0.3684 145.9 2.067 52.6 0.1926 55.4 0.2868 -49.3 1.800 0.3750 141.8 1.976 50.1 0.2025 54.8 0.2817 -50.9 1.900 0.3840 138.2 1.888 47.4 0.2132 54.3 0.2755 -53.5 2.000 0.3897 134.9 1.803 44.7 0.2236 53.4 0.2662 -55.7 2.200 0.4073 128.8 1.663 39.8 0.2448 51.8 0.2534 -60.0 2.400 0.4259 122.7 1.558 34.9 0.2656 50.0 0.2341 -66.0 2.600 0.4512 116.3 1.456 30.5 0.2864 47.9 0.2190 -71.6 2.800 0.4705 111.9 1.377 26.2 0.3071 45.8 0.1993 -79.9 3.000 0.4924 107.2 1.303 22.1 0.3273 43.6 0.1849 -88.1 3.500 0.5467 97.8 1.148 12.5 0.3782 37.6 0.1551 -119.1 4.000 0.6001 89.6 1.031 4.2 0.4224 30.9 0.1582 -158.1 4.500 0.6359 83.0 0.931 -3.7 0.4583 23.9 0.1914 170.6 5.000 0.6647 74.9 0.829 -7.6 0.4746 19.7 0.1965 160.2 5.500 0.6790 70.6 0.796 -13.1 0.5262 12.8 0.3031 142.6 6.000 0.6939 65.4 0.749 -18.0 0.5552 6.3 0.3611 129.3 ! ! SIEMENS AG Semiconductor Group, Munich