! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 8 V IC = 15 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 0.6885 -3.1 25.618 175.5 0.0013 85.4 0.9774 -1.1 0.020 0.6804 -6.3 25.438 172.5 0.0028 89.1 0.9679 -2.8 0.050 0.6727 -15.6 24.776 164.0 0.0071 80.8 0.9560 -7.1 0.100 0.6089 -29.3 22.628 150.3 0.0135 77.8 0.9017 -12.8 0.150 0.5283 -40.8 20.109 137.8 0.0185 73.2 0.8340 -16.7 0.200 0.4642 -49.4 17.646 129.2 0.0233 72.4 0.7772 -18.8 0.250 0.4006 -56.9 15.457 121.8 0.0273 70.1 0.7318 -19.9 0.300 0.3460 -62.6 13.667 116.0 0.0313 70.7 0.6940 -20.3 0.400 0.2725 -71.3 10.990 108.1 0.0384 70.8 0.6441 -20.3 0.500 0.2146 -79.0 9.062 101.1 0.0456 71.3 0.6130 -20.1 0.600 0.1722 -86.0 7.749 96.1 0.0537 71.9 0.5933 -20.1 0.700 0.1363 -91.8 6.756 91.7 0.0604 72.2 0.5795 -20.2 0.800 0.1121 -98.0 5.963 87.9 0.0683 71.5 0.5700 -20.4 0.900 0.0881 -99.3 5.343 84.7 0.0760 72.0 0.5628 -20.8 1.000 0.0718 -111.7 4.860 81.6 0.0833 72.0 0.5576 -21.4 1.100 0.0575 -123.0 4.466 79.0 0.0914 71.8 0.5526 -22.2 1.200 0.0420 -138.0 4.127 76.1 0.0992 71.5 0.5487 -23.0 1.300 0.0357 -153.6 3.810 73.8 0.1070 70.9 0.5452 -23.9 1.400 0.0358 174.6 3.557 71.3 0.1140 70.8 0.5421 -25.0 1.500 0.0362 161.6 3.357 69.1 0.1226 70.0 0.5389 -26.0 1.600 0.0477 139.0 3.151 66.4 0.1301 69.4 0.5356 -27.0 1.700 0.0543 131.0 2.991 64.3 0.1382 69.1 0.5316 -28.1 1.800 0.0674 122.0 2.854 62.3 0.1461 68.3 0.5285 -29.5 1.900 0.0759 120.7 2.729 60.1 0.1547 67.8 0.5247 -30.7 2.000 0.0860 116.5 2.600 58.0 0.1625 67.0 0.5215 -32.0 2.200 0.1028 109.3 2.396 53.9 0.1793 65.6 0.5120 -34.8 2.400 0.1257 104.3 2.241 49.8 0.1961 64.2 0.5021 -37.6 2.600 0.1536 101.9 2.100 46.1 0.2133 62.6 0.4898 -40.8 2.800 0.1704 99.0 1.985 42.6 0.2305 60.9 0.4781 -44.1 3.000 0.1953 97.4 1.879 38.6 0.2480 59.2 0.4642 -47.5 3.500 0.2564 94.0 1.671 29.8 0.2928 54.6 0.4244 -57.9 4.000 0.3137 91.2 1.528 21.1 0.3398 49.3 0.3808 -71.1 4.500 0.3727 87.9 1.413 12.9 0.3871 43.6 0.3366 -86.6 5.000 0.4281 84.3 1.318 4.8 0.4343 37.6 0.3021 -104.4 5.500 0.4758 79.4 1.218 -2.9 0.4782 31.1 0.2785 -125.4 6.000 0.5208 75.2 1.137 -10.0 0.5202 24.2 0.2710 -147.5 ! ! SIEMENS AG Semiconductor Group, Munich