! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 0.5 V IC = 8 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 0.7706 -8.6 21.881 173.5 0.0064 86.2 0.9574 -5.3 0.020 0.7575 -17.2 21.464 168.7 0.0127 82.9 0.9447 -10.9 0.050 0.7122 -42.0 19.603 152.6 0.0298 69.2 0.8688 -25.8 0.100 0.6341 -74.8 15.951 133.7 0.0487 57.7 0.7033 -44.2 0.150 0.5590 -98.9 12.605 120.1 0.0600 50.9 0.5614 -56.2 0.200 0.5277 -116.2 10.342 111.4 0.0667 48.6 0.4587 -63.3 0.250 0.5018 -129.4 8.604 104.6 0.0734 47.3 0.3814 -69.2 0.300 0.4886 -139.2 7.350 99.9 0.0789 47.8 0.3319 -73.0 0.400 0.4686 -154.0 5.695 92.4 0.0898 49.2 0.2568 -78.7 0.500 0.4651 -164.5 4.614 86.3 0.1016 50.5 0.2099 -82.7 0.600 0.4645 -173.2 3.902 81.2 0.1137 51.8 0.1816 -86.2 0.700 0.4638 -179.9 3.388 76.5 0.1262 52.6 0.1603 -90.2 0.800 0.4665 174.2 2.987 72.5 0.1391 53.0 0.1419 -94.0 0.900 0.4647 168.6 2.676 68.6 0.1522 53.0 0.1278 -97.0 1.000 0.4669 163.5 2.438 65.1 0.1649 53.0 0.1198 -101.2 1.100 0.4723 158.7 2.243 61.5 0.1781 52.6 0.1133 -106.7 1.200 0.4795 154.5 2.080 58.2 0.1914 52.0 0.1057 -111.9 1.300 0.4825 150.6 1.934 55.0 0.2049 51.3 0.1002 -116.5 1.400 0.4887 146.8 1.816 52.2 0.2173 50.5 0.0981 -122.1 1.500 0.4884 143.3 1.726 49.1 0.2301 49.6 0.0964 -127.8 1.600 0.5005 139.8 1.618 46.0 0.2428 48.6 0.0948 -134.6 1.700 0.5041 136.1 1.544 43.2 0.2547 47.6 0.0924 -141.7 1.800 0.5161 133.1 1.483 40.6 0.2674 46.3 0.0941 -146.9 1.900 0.5223 129.9 1.421 37.9 0.2797 45.1 0.0984 -153.3 2.000 0.5270 127.2 1.360 35.4 0.2916 44.0 0.1030 -161.0 2.200 0.5406 121.5 1.263 30.4 0.3149 41.3 0.1101 -172.4 2.400 0.5547 116.0 1.189 25.5 0.3372 38.6 0.1274 175.1 2.600 0.5749 110.3 1.114 21.2 0.3567 35.9 0.1402 166.4 2.800 0.5886 106.1 1.057 17.3 0.3766 33.1 0.1644 157.8 3.000 0.6081 101.7 1.002 13.1 0.3946 30.3 0.1836 151.2 3.500 0.6469 92.1 0.894 4.6 0.4352 23.5 0.2481 137.5 4.000 0.6829 84.7 0.808 -2.3 0.4642 16.5 0.3151 125.7 4.500 0.7042 77.8 0.737 -8.6 0.4820 9.9 0.3656 114.9 5.000 0.7171 70.9 0.682 -11.0 0.4925 7.3 0.3552 112.2 5.500 0.7225 66.7 0.661 -16.0 0.5256 0.6 0.4451 105.9 6.000 0.7306 62.1 0.635 -19.9 0.5419 -4.9 0.4869 99.0 ! ! SIEMENS AG Semiconductor Group, Munich