! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 0.5 V IC = 14 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 0.6449 -19.0 28.418 168.6 0.0082 82.4 0.8070 -11.1 0.020 0.6252 -36.8 27.003 159.7 0.0161 75.0 0.7773 -22.1 0.050 0.5829 -78.3 21.315 137.3 0.0321 58.4 0.6295 -47.2 0.100 0.5628 -119.1 14.348 117.2 0.0448 48.2 0.4281 -71.6 0.150 0.5445 -139.9 10.344 106.1 0.0518 46.7 0.3160 -86.6 0.200 0.5459 -151.8 8.072 99.6 0.0582 47.8 0.2516 -95.4 0.250 0.5427 -160.5 6.513 94.4 0.0643 49.4 0.2084 -104.9 0.300 0.5411 -166.5 5.492 90.8 0.0710 51.6 0.1854 -111.7 0.400 0.5424 -175.6 4.204 85.0 0.0846 54.6 0.1520 -123.0 0.500 0.5473 177.7 3.380 79.9 0.0990 56.6 0.1334 -132.6 0.600 0.5482 171.5 2.844 75.2 0.1144 57.5 0.1252 -140.7 0.700 0.5505 166.7 2.478 71.0 0.1294 58.1 0.1214 -147.9 0.800 0.5527 162.4 2.191 67.3 0.1450 57.8 0.1178 -154.9 0.900 0.5517 158.2 1.973 63.7 0.1606 57.3 0.1146 -160.1 1.000 0.5535 154.0 1.797 60.2 0.1752 56.6 0.1166 -164.7 1.100 0.5638 150.0 1.655 56.8 0.1904 55.7 0.1203 -169.8 1.200 0.5658 146.2 1.540 53.5 0.2050 54.5 0.1220 -175.0 1.300 0.5660 142.7 1.441 50.4 0.2198 53.3 0.1242 -179.0 1.400 0.5735 139.7 1.354 47.8 0.2340 52.0 0.1299 177.5 1.500 0.5740 136.6 1.302 44.7 0.2480 50.8 0.1334 174.3 1.600 0.5829 133.2 1.225 41.8 0.2616 49.4 0.1385 170.7 1.700 0.5859 130.3 1.177 38.9 0.2744 48.0 0.1428 167.2 1.800 0.5939 127.2 1.132 36.8 0.2874 46.5 0.1480 164.5 1.900 0.5961 124.0 1.087 34.0 0.2999 45.1 0.1558 161.8 2.000 0.6020 121.4 1.044 31.6 0.3125 43.5 0.1655 158.8 2.200 0.6107 116.2 0.978 27.0 0.3365 40.4 0.1794 152.5 2.400 0.6190 110.9 0.927 22.4 0.3581 37.3 0.2007 147.0 2.600 0.6345 105.6 0.876 18.7 0.3773 34.3 0.2157 141.8 2.800 0.6452 101.4 0.834 14.9 0.3956 31.2 0.2411 137.5 3.000 0.6585 97.2 0.801 11.6 0.4123 28.3 0.2603 133.1 3.500 0.6871 88.5 0.731 4.4 0.4492 21.3 0.3192 124.2 4.000 0.7132 81.0 0.674 -1.3 0.4738 14.3 0.3794 115.3 4.500 0.7234 74.7 0.631 -6.5 0.4880 8.2 0.4204 107.6 5.000 0.7326 69.2 0.605 -10.7 0.5021 2.9 0.4546 100.8 5.500 0.7324 63.8 0.575 -11.7 0.5084 0.1 0.4422 98.3 6.000 0.7345 59.8 0.576 -15.8 0.5355 -5.8 0.5116 93.1 ! ! SIEMENS AG Semiconductor Group, Munich