! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 V IC = 25 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 0.7375 -7.3 38.729 172.7 0.0019 89.6 0.9763 -2.6 0.020 0.7218 -14.3 37.819 167.9 0.0038 84.7 0.9632 -5.5 0.050 0.6604 -34.2 34.175 152.1 0.0093 74.1 0.9060 -12.6 0.100 0.5390 -60.9 27.315 133.5 0.0158 67.6 0.7885 -19.0 0.150 0.4322 -80.0 21.465 120.2 0.0206 63.8 0.6923 -20.9 0.200 0.3687 -95.1 17.469 112.4 0.0247 65.3 0.6376 -20.7 0.250 0.3205 -107.5 14.504 106.1 0.0288 65.4 0.5960 -19.8 0.300 0.2893 -117.6 12.347 101.8 0.0319 67.1 0.5740 -19.3 0.400 0.2487 -134.2 9.543 95.6 0.0399 69.2 0.5453 -18.0 0.500 0.2336 -147.5 7.704 90.1 0.0475 70.5 0.5302 -17.5 0.600 0.2221 -158.2 6.502 85.9 0.0562 71.1 0.5219 -17.6 0.700 0.2141 -167.8 5.627 82.2 0.0640 71.8 0.5146 -18.0 0.800 0.2169 -175.0 4.937 78.7 0.0723 71.9 0.5100 -18.5 0.900 0.2122 177.2 4.409 75.6 0.0808 71.7 0.5071 -19.0 1.000 0.2161 169.1 4.002 72.7 0.0887 71.8 0.5044 -20.2 1.100 0.2271 164.1 3.666 70.0 0.0975 71.5 0.5006 -21.3 1.200 0.2294 157.8 3.382 67.1 0.1062 71.3 0.4977 -22.4 1.300 0.2319 154.0 3.117 64.8 0.1147 70.7 0.4959 -23.5 1.400 0.2451 148.7 2.916 62.4 0.1230 70.4 0.4938 -24.9 1.500 0.2452 145.0 2.750 59.9 0.1313 69.7 0.4898 -26.2 1.600 0.2525 140.9 2.584 57.2 0.1403 69.1 0.4866 -27.4 1.700 0.2624 136.9 2.448 54.9 0.1486 68.4 0.4825 -28.8 1.800 0.2747 133.2 2.337 52.6 0.1575 67.6 0.4799 -30.3 1.900 0.2822 130.8 2.230 50.3 0.1665 67.1 0.4760 -32.0 2.000 0.2885 127.8 2.125 48.0 0.1755 66.2 0.4714 -33.6 2.200 0.3085 122.2 1.957 43.5 0.1934 64.8 0.4637 -36.6 2.400 0.3289 117.1 1.827 39.1 0.2116 63.2 0.4497 -40.1 2.600 0.3546 112.2 1.705 35.1 0.2300 61.2 0.4378 -43.7 2.800 0.3740 108.7 1.610 31.2 0.2491 59.6 0.4229 -47.9 3.000 0.3988 104.7 1.517 27.2 0.2679 57.8 0.4101 -51.8 3.500 0.4586 97.0 1.345 17.9 0.3184 52.8 0.3660 -64.9 4.000 0.5214 90.7 1.209 9.1 0.3684 46.7 0.3158 -81.3 4.500 0.5670 84.6 1.093 0.7 0.4153 40.2 0.2767 -101.3 5.000 0.6139 78.5 0.996 -6.8 0.4623 33.6 0.2504 -125.6 5.500 0.6418 71.3 0.875 -10.8 0.4885 28.7 0.2450 -139.2 6.000 0.6621 66.9 0.836 -16.5 0.5502 21.8 0.2888 -169.6 ! ! SIEMENS AG Semiconductor Group, Munich