! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 4 V IC = 4 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 0.8837 -3.1 12.640 176.6 0.0027 92.5 0.9919 -1.3 0.020 0.8777 -6.2 12.578 175.0 0.0056 84.0 0.9945 -2.9 0.050 0.8654 -15.6 12.272 167.2 0.0139 81.4 0.9790 -7.0 0.100 0.8288 -30.5 11.739 156.7 0.0272 74.9 0.9422 -13.2 0.150 0.7689 -43.8 10.856 145.6 0.0380 67.4 0.8888 -18.5 0.200 0.7121 -55.7 10.058 137.2 0.0468 63.0 0.8349 -22.3 0.250 0.6566 -66.9 9.167 129.2 0.0540 58.5 0.7776 -25.5 0.300 0.5987 -76.9 8.308 123.0 0.0595 56.4 0.7321 -27.5 0.400 0.5181 -93.8 6.978 112.9 0.0685 52.9 0.6534 -29.9 0.500 0.4526 -108.6 5.886 104.3 0.0757 51.5 0.5977 -31.1 0.600 0.4157 -120.9 5.118 97.9 0.0824 51.2 0.5613 -31.8 0.700 0.3855 -132.1 4.508 92.2 0.0880 51.6 0.5329 -32.2 0.800 0.3652 -141.3 4.002 87.3 0.0944 51.9 0.5110 -32.5 0.900 0.3468 -151.0 3.612 82.7 0.1009 52.6 0.4962 -32.9 1.000 0.3366 -160.4 3.304 78.7 0.1070 53.5 0.4835 -33.6 1.100 0.3344 -169.5 3.046 75.0 0.1140 54.1 0.4724 -34.5 1.200 0.3325 -176.9 2.823 71.3 0.1207 54.9 0.4633 -35.5 1.300 0.3321 177.3 2.617 68.2 0.1282 55.5 0.4551 -36.3 1.400 0.3336 170.5 2.448 65.0 0.1350 56.0 0.4495 -37.6 1.500 0.3349 165.5 2.319 62.1 0.1433 56.4 0.4433 -38.8 1.600 0.3401 159.1 2.176 58.8 0.1509 56.5 0.4360 -40.0 1.700 0.3464 154.2 2.072 56.0 0.1594 56.8 0.4287 -41.3 1.800 0.3549 149.3 1.982 53.3 0.1682 56.7 0.4240 -42.8 1.900 0.3655 144.8 1.896 50.5 0.1770 56.9 0.4187 -44.8 2.000 0.3700 140.9 1.810 47.9 0.1859 56.6 0.4107 -46.5 2.200 0.3868 133.7 1.668 42.8 0.2048 56.2 0.4009 -50.1 2.400 0.4039 126.4 1.562 37.9 0.2243 55.4 0.3840 -54.5 2.600 0.4315 119.4 1.460 33.4 0.2443 54.0 0.3703 -58.7 2.800 0.4499 114.5 1.379 29.1 0.2649 52.7 0.3519 -64.3 3.000 0.4714 109.6 1.303 24.9 0.2859 51.1 0.3380 -69.7 3.500 0.5275 99.1 1.153 15.3 0.3413 46.2 0.2969 -88.3 4.000 0.5813 91.0 1.034 6.7 0.3956 39.9 0.2596 -113.3 4.500 0.6217 83.6 0.936 -1.2 0.4440 32.6 0.2433 -141.8 5.000 0.6568 75.4 0.827 -5.5 0.4702 27.7 0.2362 -156.6 5.500 0.6661 71.0 0.792 -10.6 0.5319 20.2 0.3119 174.1 6.000 0.6853 65.6 0.747 -15.5 0.5693 12.8 0.3603 154.2 ! ! SIEMENS AG Semiconductor Group, Munich