! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 4 V IC = 0.6 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 0.9795 -1.3 2.226 178.1 0.0026 93.3 0.9986 -0.3 0.020 0.9763 -2.8 2.221 177.8 0.0061 93.1 0.9937 -0.9 0.050 0.9701 -7.2 2.196 173.8 0.0149 84.7 0.9981 -2.3 0.100 0.9665 -14.5 2.184 169.0 0.0299 81.5 0.9946 -4.6 0.150 0.9569 -21.5 2.152 162.5 0.0446 76.5 0.9877 -6.9 0.200 0.9488 -28.2 2.145 157.6 0.0584 72.7 0.9803 -8.9 0.250 0.9380 -35.6 2.121 151.9 0.0712 68.3 0.9687 -11.2 0.300 0.9103 -42.2 2.065 146.6 0.0831 64.7 0.9583 -13.1 0.400 0.8789 -55.3 1.977 137.2 0.1041 57.1 0.9309 -16.7 0.500 0.8307 -67.9 1.863 127.2 0.1205 50.3 0.9027 -19.9 0.600 0.7942 -79.8 1.769 118.8 0.1333 44.5 0.8770 -22.8 0.700 0.7565 -90.6 1.669 111.1 0.1419 39.6 0.8524 -25.2 0.800 0.7187 -101.2 1.559 103.9 0.1476 34.8 0.8276 -27.4 0.900 0.6896 -110.9 1.476 96.9 0.1506 31.2 0.8083 -29.4 1.000 0.6627 -121.4 1.398 90.7 0.1504 27.9 0.7907 -31.3 1.100 0.6422 -131.3 1.332 85.0 0.1496 25.3 0.7750 -33.3 1.200 0.6271 -139.8 1.261 79.5 0.1464 23.2 0.7621 -35.2 1.300 0.6152 -148.2 1.194 75.0 0.1437 22.1 0.7512 -36.8 1.400 0.6068 -156.1 1.134 70.1 0.1377 21.5 0.7422 -38.7 1.500 0.5965 -164.0 1.088 66.2 0.1329 21.9 0.7330 -40.4 1.600 0.5946 -171.5 1.027 61.7 0.1277 22.7 0.7262 -42.2 1.700 0.5896 -179.2 0.992 57.8 0.1227 25.2 0.7149 -44.1 1.800 0.5930 174.2 0.960 54.5 0.1194 27.8 0.7101 -45.9 1.900 0.5926 167.8 0.924 50.7 0.1160 31.9 0.7063 -48.3 2.000 0.5952 161.5 0.885 47.6 0.1157 35.9 0.7007 -50.4 2.200 0.6062 150.4 0.816 41.7 0.1191 46.2 0.6931 -55.0 2.400 0.6151 139.9 0.769 36.7 0.1334 55.4 0.6801 -60.4 2.600 0.6310 130.0 0.718 32.6 0.1554 61.3 0.6711 -65.7 2.800 0.6418 121.9 0.681 29.2 0.1846 65.0 0.6603 -72.2 3.000 0.6601 113.9 0.645 26.3 0.2183 66.3 0.6513 -78.8 3.500 0.6855 98.1 0.586 21.4 0.3147 62.1 0.6241 -98.6 4.000 0.7042 86.6 0.564 18.3 0.4102 52.5 0.5869 -122.4 4.500 0.7039 77.8 0.566 14.5 0.4877 41.1 0.5554 -147.6 5.000 0.7103 69.6 0.554 12.1 0.5212 32.5 0.4893 -164.3 5.500 0.6965 64.7 0.592 8.0 0.5902 22.5 0.5528 172.4 6.000 0.6892 60.2 0.609 2.4 0.6243 13.3 0.5686 153.3 ! ! SIEMENS AG Semiconductor Group, Munich