! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2 V IC = 3 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 0.9031 -2.8 9.906 176.9 0.0034 91.8 0.9932 -1.3 0.020 0.8942 -6.1 9.906 175.5 0.0070 85.9 0.9920 -2.9 0.050 0.8879 -14.7 9.639 168.2 0.0178 82.2 0.9812 -7.2 0.100 0.8585 -29.1 9.279 158.3 0.0348 74.9 0.9508 -13.7 0.150 0.8055 -42.5 8.721 147.5 0.0490 67.0 0.8983 -19.7 0.200 0.7593 -54.7 8.133 139.4 0.0607 61.9 0.8470 -24.0 0.250 0.7079 -66.0 7.528 131.3 0.0701 57.0 0.7897 -28.0 0.300 0.6496 -76.1 6.898 124.7 0.0775 53.8 0.7415 -30.8 0.400 0.5748 -93.5 5.846 114.4 0.0888 48.9 0.6546 -34.6 0.500 0.5176 -108.5 4.970 105.4 0.0969 46.1 0.5916 -36.7 0.600 0.4779 -121.5 4.361 98.2 0.1039 44.7 0.5462 -38.2 0.700 0.4489 -133.2 3.863 92.2 0.1091 44.4 0.5107 -39.3 0.800 0.4283 -142.8 3.442 86.8 0.1150 44.5 0.4826 -40.0 0.900 0.4112 -151.9 3.108 82.0 0.1205 44.9 0.4636 -40.6 1.000 0.4035 -160.6 2.845 77.6 0.1257 45.3 0.4478 -41.5 1.100 0.4015 -168.9 2.631 73.6 0.1317 46.0 0.4337 -42.7 1.200 0.3960 -176.1 2.443 69.7 0.1375 46.7 0.4212 -43.9 1.300 0.3955 177.6 2.276 66.2 0.1445 47.5 0.4108 -44.9 1.400 0.3987 171.5 2.131 62.9 0.1505 48.3 0.4030 -46.4 1.500 0.3996 166.1 2.022 59.7 0.1582 49.0 0.3934 -47.8 1.600 0.4077 160.3 1.902 56.2 0.1656 49.4 0.3849 -49.3 1.700 0.4118 154.9 1.810 53.2 0.1733 50.0 0.3753 -50.9 1.800 0.4214 150.3 1.730 50.3 0.1823 50.1 0.3707 -52.5 1.900 0.4260 146.2 1.661 47.5 0.1907 50.5 0.3647 -55.0 2.000 0.4343 141.7 1.584 44.6 0.2003 50.3 0.3560 -57.0 2.200 0.4500 134.4 1.463 39.4 0.2192 50.3 0.3428 -61.4 2.400 0.4678 127.2 1.374 34.2 0.2396 49.8 0.3252 -67.1 2.600 0.4916 120.2 1.284 29.6 0.2605 48.7 0.3096 -72.5 2.800 0.5089 114.8 1.214 25.3 0.2816 47.4 0.2929 -79.9 3.000 0.5291 109.3 1.149 21.0 0.3043 45.9 0.2788 -87.3 3.500 0.5820 98.4 1.010 11.7 0.3617 40.8 0.2503 -111.9 4.000 0.6265 89.5 0.910 3.7 0.4156 34.2 0.2424 -143.2 4.500 0.6615 81.8 0.824 -3.5 0.4610 26.8 0.2619 -172.5 5.000 0.6862 73.7 0.732 -6.8 0.4825 22.0 0.2610 173.8 5.500 0.6925 69.3 0.714 -11.2 0.5394 14.4 0.3628 152.1 6.000 0.7023 64.3 0.682 -15.3 0.5710 7.3 0.4184 136.3 ! ! SIEMENS AG Semiconductor Group, Munich