! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 V IC = 3.5 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 0.8977 -1.5 10.320 177.8 0.0015 93.0 0.9930 -0.7 0.020 0.8956 -2.7 10.079 176.4 0.0032 88.3 0.9876 -1.4 0.050 0.8966 -7.0 10.143 172.5 0.0079 86.0 0.9895 -3.5 0.100 0.8739 -14.1 10.075 165.7 0.0161 80.8 0.9766 -6.9 0.150 0.8487 -20.6 9.654 158.2 0.0231 78.1 0.9569 -10.0 0.200 0.8143 -26.9 9.461 151.7 0.0302 74.5 0.9333 -12.8 0.250 0.7749 -33.0 9.087 145.4 0.0360 71.6 0.9063 -15.4 0.300 0.7361 -38.3 8.533 140.1 0.0418 70.1 0.8789 -17.4 0.400 0.6514 -47.9 7.731 130.6 0.0516 65.9 0.8264 -20.6 0.500 0.5635 -56.3 6.913 121.4 0.0594 63.5 0.7757 -22.9 0.600 0.5016 -63.0 6.223 114.8 0.0666 61.9 0.7349 -24.5 0.700 0.4448 -69.0 5.624 108.9 0.0734 61.1 0.7052 -25.7 0.800 0.3920 -75.2 5.095 103.4 0.0796 60.0 0.6792 -26.5 0.900 0.3406 -78.8 4.677 98.4 0.0855 59.7 0.6580 -27.2 1.000 0.3019 -83.9 4.337 94.2 0.0914 60.2 0.6390 -27.8 1.100 0.2671 -89.8 4.035 90.4 0.0975 60.1 0.6245 -28.5 1.200 0.2346 -94.8 3.755 86.6 0.1032 60.3 0.6121 -29.3 1.300 0.2071 -97.9 3.496 83.7 0.1095 60.3 0.6025 -29.9 1.400 0.1824 -103.6 3.277 80.5 0.1150 60.5 0.5946 -30.8 1.500 0.1658 -107.7 3.107 77.7 0.1218 60.4 0.5870 -31.6 1.600 0.1410 -117.0 2.931 74.4 0.1282 60.3 0.5806 -32.4 1.700 0.1191 -123.2 2.801 71.6 0.1348 60.5 0.5732 -33.3 1.800 0.1024 -133.3 2.681 69.0 0.1416 60.5 0.5670 -34.2 1.900 0.0957 -144.2 2.572 66.4 0.1485 60.5 0.5613 -35.4 2.000 0.0843 -154.8 2.460 63.8 0.1555 60.2 0.5563 -36.3 2.200 0.0814 179.4 2.268 59.1 0.1700 59.7 0.5458 -38.9 2.400 0.0898 153.2 2.129 54.4 0.1853 59.4 0.5327 -41.3 2.600 0.1092 135.8 2.000 50.2 0.2003 58.3 0.5207 -44.2 2.800 0.1301 124.4 1.899 46.1 0.2168 57.4 0.5084 -47.2 3.000 0.1571 118.0 1.798 41.8 0.2327 56.3 0.4952 -50.4 3.500 0.2276 105.3 1.604 32.1 0.2758 52.8 0.4592 -60.4 4.000 0.2916 98.6 1.471 22.8 0.3221 48.7 0.4195 -73.1 4.500 0.3539 93.3 1.364 14.3 0.3706 43.6 0.3788 -88.1 5.000 0.4089 87.8 1.272 5.8 0.4193 38.0 0.3478 -105.2 5.500 0.4604 82.6 1.171 -2.0 0.4660 31.8 0.3260 -125.1 6.000 0.5054 77.2 1.100 -9.4 0.5106 25.0 0.3166 -145.9 ! ! SIEMENS AG Semiconductor Group, Munich