! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 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 0.9329 -2.3 8.224 177.2 0.0021 95.2 0.9971 -0.7 0.020 0.9235 -4.4 8.216 176.4 0.0044 88.3 0.9922 -1.6 0.050 0.9203 -10.9 8.094 170.5 0.0113 84.1 0.9902 -3.9 0.100 0.9037 -21.7 7.893 163.0 0.0220 78.3 0.9759 -7.6 0.150 0.8668 -32.1 7.606 153.9 0.0322 71.8 0.9509 -11.1 0.200 0.8287 -41.9 7.294 147.0 0.0407 67.9 0.9233 -13.9 0.250 0.7860 -51.3 6.903 139.7 0.0480 63.2 0.8895 -16.5 0.300 0.7331 -59.7 6.478 133.5 0.0541 60.1 0.8602 -18.4 0.400 0.6572 -75.0 5.734 123.1 0.0635 54.7 0.8006 -21.3 0.500 0.5795 -88.9 5.007 113.8 0.0705 51.2 0.7546 -23.0 0.600 0.5272 -101.3 4.470 106.4 0.0761 49.1 0.7208 -24.4 0.700 0.4811 -112.0 4.021 100.0 0.0800 48.3 0.6922 -25.2 0.800 0.4488 -122.7 3.617 94.3 0.0842 47.8 0.6700 -26.1 0.900 0.4131 -131.7 3.284 89.1 0.0876 48.1 0.6530 -26.7 1.000 0.3952 -141.7 3.020 84.6 0.0907 48.9 0.6401 -27.4 1.100 0.3802 -151.1 2.799 80.4 0.0944 49.7 0.6292 -28.5 1.200 0.3724 -159.1 2.604 76.4 0.0979 51.1 0.6207 -29.4 1.300 0.3644 -166.9 2.423 72.8 0.1020 52.3 0.6130 -30.3 1.400 0.3627 -174.5 2.274 69.3 0.1057 53.8 0.6077 -31.4 1.500 0.3603 178.5 2.153 66.2 0.1106 55.0 0.6017 -32.4 1.600 0.3605 171.9 2.026 62.6 0.1156 56.2 0.5960 -33.5 1.700 0.3633 165.1 1.933 59.5 0.1219 57.9 0.5891 -34.8 1.800 0.3697 159.1 1.845 56.7 0.1277 58.7 0.5860 -36.0 1.900 0.3760 154.1 1.766 53.8 0.1348 59.9 0.5834 -37.7 2.000 0.3809 149.1 1.683 51.0 0.1416 60.5 0.5781 -39.2 2.200 0.3963 140.0 1.555 45.7 0.1573 62.0 0.5713 -42.3 2.400 0.4134 131.4 1.453 40.5 0.1747 62.9 0.5604 -45.9 2.600 0.4386 123.2 1.357 36.0 0.1937 62.8 0.5500 -49.5 2.800 0.4590 117.4 1.279 31.8 0.2136 62.6 0.5384 -54.1 3.000 0.4790 111.6 1.209 27.4 0.2355 62.0 0.5287 -58.4 3.500 0.5351 99.7 1.065 18.1 0.2965 58.6 0.4969 -72.7 4.000 0.5853 90.3 0.957 9.8 0.3622 52.7 0.4577 -90.7 4.500 0.6226 83.0 0.869 2.6 0.4271 45.1 0.4208 -111.7 5.000 0.6565 74.5 0.763 -1.9 0.4672 38.6 0.3870 -126.5 5.500 0.6646 69.3 0.738 -6.1 0.5429 30.3 0.4184 -154.1 6.000 0.6736 64.2 0.698 -10.0 0.5926 21.8 0.4352 -176.5 ! ! SIEMENS AG Semiconductor Group, Munich