! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 4 V IC = 9 mA ! Common Emitter S-Parameters: May 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.7396 -2.7 19.980 177.0 0.0013 91.2 0.9863 -1.1 0.020 0.7320 -5.6 19.908 174.2 0.0028 90.0 0.9816 -2.5 0.050 0.7228 -13.4 19.559 166.7 0.0077 80.9 0.9698 -6.0 0.100 0.6772 -25.8 18.433 154.8 0.0145 78.0 0.9309 -11.2 0.150 0.6102 -36.7 16.862 143.3 0.0205 73.5 0.8769 -15.3 0.200 0.5512 -45.7 15.228 135.0 0.0254 71.0 0.8249 -17.9 0.250 0.4863 -54.0 13.683 127.2 0.0297 68.7 0.7801 -19.6 0.300 0.4295 -60.5 12.316 121.2 0.0340 68.4 0.7393 -20.6 0.400 0.3466 -70.6 10.110 112.5 0.0413 67.6 0.6832 -21.4 0.500 0.2793 -79.7 8.450 104.8 0.0480 67.8 0.6450 -21.6 0.600 0.2258 -87.5 7.287 99.2 0.0551 68.3 0.6199 -21.7 0.700 0.1895 -94.0 6.394 94.3 0.0620 69.0 0.6011 -21.9 0.800 0.1593 -101.5 5.652 90.2 0.0692 68.9 0.5885 -22.1 0.900 0.1341 -106.9 5.080 86.6 0.0768 68.9 0.5797 -22.4 1.000 0.1122 -116.4 4.631 83.4 0.0834 69.3 0.5717 -23.0 1.100 0.0912 -126.6 4.265 80.4 0.0909 69.4 0.5654 -23.8 1.200 0.0815 -142.2 3.943 77.3 0.0985 69.3 0.5605 -24.5 1.300 0.0734 -151.7 3.644 74.7 0.1061 69.1 0.5559 -25.3 1.400 0.0671 -167.4 3.406 72.0 0.1130 69.0 0.5521 -26.3 1.500 0.0631 180.0 3.218 69.8 0.1211 68.6 0.5486 -27.3 1.600 0.0706 164.4 3.025 67.0 0.1286 68.3 0.5448 -28.3 1.700 0.0758 150.1 2.868 64.7 0.1365 67.8 0.5409 -29.3 1.800 0.0863 140.9 2.737 62.6 0.1444 67.2 0.5372 -30.6 1.900 0.0945 136.6 2.620 60.3 0.1526 66.8 0.5335 -31.9 2.000 0.1018 129.5 2.498 58.1 0.1607 66.2 0.5300 -33.2 2.200 0.1202 120.1 2.302 53.8 0.1772 65.2 0.5209 -35.9 2.400 0.1449 112.7 2.152 49.6 0.1938 63.9 0.5113 -38.7 2.600 0.1711 108.4 2.018 45.6 0.2112 62.4 0.4986 -41.9 2.800 0.1881 104.4 1.907 42.0 0.2284 60.9 0.4877 -45.2 3.000 0.2137 101.5 1.806 38.0 0.2459 59.2 0.4738 -48.7 3.500 0.2749 96.4 1.610 28.8 0.2918 54.7 0.4347 -59.4 4.000 0.3362 91.9 1.470 20.1 0.3400 49.7 0.3929 -72.8 4.500 0.3958 87.9 1.357 11.8 0.3892 43.9 0.3510 -88.6 5.000 0.4444 83.7 1.266 3.7 0.4374 37.8 0.3181 -106.7 5.500 0.4918 79.1 1.166 -3.8 0.4834 31.2 0.2966 -127.9 6.000 0.5333 74.2 1.089 -10.8 0.5259 24.2 0.2905 -149.8 ! ! SIEMENS AG Semiconductor Group, Munich