! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1 V IC = 4.5 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 0.8373 -2.3 12.469 178.1 0.0018 93.0 0.9889 -1.0 0.020 0.8319 -4.2 12.264 175.9 0.0041 87.2 0.9826 -2.0 0.050 0.8267 -10.9 12.387 170.0 0.0093 83.6 0.9796 -4.9 0.100 0.7986 -21.2 12.036 160.5 0.0183 79.2 0.9542 -9.6 0.150 0.7508 -31.0 11.329 150.9 0.0268 73.6 0.9200 -13.6 0.200 0.6995 -40.2 10.720 142.9 0.0334 69.6 0.8785 -16.8 0.250 0.6480 -48.4 9.920 135.8 0.0398 66.8 0.8374 -19.5 0.300 0.5926 -55.3 9.142 129.7 0.0450 64.5 0.8007 -21.3 0.400 0.4987 -68.4 7.877 119.7 0.0537 61.8 0.7368 -23.7 0.500 0.4158 -78.9 6.760 110.9 0.0605 60.5 0.6847 -25.1 0.600 0.3664 -88.6 5.932 104.6 0.0680 59.9 0.6483 -25.9 0.700 0.3151 -96.6 5.264 98.9 0.0748 59.7 0.6226 -26.5 0.800 0.2745 -105.6 4.706 93.9 0.0810 59.7 0.6025 -26.8 0.900 0.2389 -113.3 4.263 89.3 0.0875 60.3 0.5858 -27.3 1.000 0.2140 -123.2 3.902 85.3 0.0936 60.6 0.5727 -27.8 1.100 0.1951 -133.4 3.604 81.9 0.1002 61.0 0.5624 -28.5 1.200 0.1771 -141.8 3.347 78.3 0.1075 61.3 0.5539 -29.3 1.300 0.1669 -150.0 3.102 75.4 0.1150 61.5 0.5470 -30.0 1.400 0.1529 -160.2 2.911 72.4 0.1214 61.6 0.5410 -31.0 1.500 0.1514 -168.2 2.756 69.5 0.1286 61.6 0.5352 -32.0 1.600 0.1538 -178.3 2.595 66.5 0.1362 61.5 0.5303 -33.0 1.700 0.1531 170.9 2.461 63.6 0.1439 61.4 0.5247 -34.0 1.800 0.1581 162.4 2.354 61.2 0.1514 61.4 0.5201 -35.3 1.900 0.1657 156.0 2.256 58.6 0.1595 61.2 0.5147 -36.6 2.000 0.1726 149.4 2.153 56.0 0.1678 60.9 0.5107 -37.9 2.200 0.1866 139.2 1.988 51.3 0.1842 60.1 0.5002 -40.9 2.400 0.2085 128.8 1.863 46.7 0.2013 59.3 0.4883 -43.8 2.600 0.2364 121.2 1.749 42.4 0.2182 58.1 0.4756 -47.2 2.800 0.2556 115.1 1.656 38.3 0.2363 56.9 0.4631 -50.9 3.000 0.2834 110.9 1.569 34.1 0.2545 55.4 0.4480 -54.8 3.500 0.3473 101.1 1.393 24.4 0.3022 51.2 0.4089 -67.0 4.000 0.4055 93.8 1.270 15.4 0.3521 46.2 0.3672 -82.5 4.500 0.4624 87.8 1.167 7.1 0.4027 40.4 0.3296 -101.1 5.000 0.5090 81.7 1.079 -1.0 0.4513 34.1 0.3063 -121.9 5.500 0.5503 76.2 0.992 -7.9 0.4964 27.3 0.2995 -144.9 6.000 0.5824 71.1 0.923 -14.0 0.5378 20.1 0.3084 -167.3 ! ! SIEMENS AG Semiconductor Group, Munich