! SIEMENS Small Signal Semiconductors ! BFR181W ! Si NPN RF Bipolar Junction Transistor in SOT323 ! VCE = 10 V IC = 1 mA ! Common Emitter S-Parameters: September 1992 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.100 0.9747 -7.3 3.310 173.5 0.0172 84.7 0.9935 -3.5 0.150 0.9706 -10.9 3.300 170.0 0.0261 82.3 0.9902 -5.3 0.200 0.9623 -14.3 3.288 166.9 0.0339 81.0 0.9857 -7.0 0.250 0.9524 -17.9 3.272 163.5 0.0425 78.3 0.9799 -8.7 0.300 0.9455 -21.5 3.240 160.5 0.0502 76.5 0.9734 -10.4 0.400 0.9203 -28.4 3.192 153.7 0.0652 72.2 0.9571 -13.6 0.500 0.8928 -35.1 3.121 147.5 0.0791 68.1 0.9382 -16.6 0.600 0.8579 -41.8 3.042 141.5 0.0920 64.4 0.9169 -19.4 0.700 0.8249 -48.2 2.949 135.6 0.1028 61.1 0.8942 -21.9 0.800 0.7928 -54.2 2.855 130.1 0.1126 58.0 0.8714 -24.3 0.900 0.7538 -60.1 2.741 125.0 0.1215 55.1 0.8494 -26.4 1.000 0.7238 -65.8 2.651 120.3 0.1287 52.6 0.8275 -28.4 1.200 0.6572 -76.4 2.444 111.2 0.1405 48.1 0.7864 -31.9 1.400 0.6003 -87.0 2.267 103.1 0.1480 44.9 0.7502 -34.7 1.500 0.5732 -91.6 2.188 99.3 0.1509 43.5 0.7339 -36.0 1.600 0.5464 -96.4 2.111 95.7 0.1537 42.6 0.7211 -37.1 1.800 0.5070 -106.1 1.975 89.2 0.1575 41.2 0.6951 -39.2 2.000 0.4682 -114.8 1.847 83.0 0.1601 40.4 0.6763 -41.3 2.200 0.4367 -123.8 1.735 77.5 0.1624 40.3 0.6630 -43.1 2.400 0.4157 -132.2 1.644 72.5 0.1641 40.7 0.6522 -45.1 2.500 0.4000 -136.2 1.595 69.8 0.1658 40.9 0.6479 -45.8 3.000 0.3722 -157.2 1.415 58.7 0.1726 44.4 0.6343 -51.1 3.500 0.3555 -176.2 1.283 49.1 0.1880 48.8 0.6265 -57.2 4.000 0.3599 164.6 1.171 40.0 0.2089 52.8 0.6196 -63.6 4.500 0.3679 149.1 1.076 32.9 0.2375 55.7 0.6125 -71.1 5.000 0.4010 136.7 1.002 26.0 0.2743 57.5 0.6064 -78.3 5.500 0.4107 124.3 0.931 20.5 0.3196 57.9 0.6060 -85.9 6.000 0.4256 113.3 0.873 15.9 0.3734 56.4 0.6122 -93.7 ! ! SIEMENS AG Semiconductor Group, Munich