! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 0.75 V IC = 4 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 0.8518 -2.1 11.364 178.3 0.0021 93.1 0.9873 -1.1 0.020 0.8504 -4.5 11.241 176.0 0.0040 89.8 0.9813 -2.1 0.050 0.8443 -10.5 11.202 170.4 0.0103 83.8 0.9789 -5.0 0.100 0.8114 -21.3 10.968 161.1 0.0205 78.6 0.9564 -9.7 0.150 0.7683 -30.6 10.356 151.7 0.0293 73.1 0.9193 -13.9 0.200 0.7204 -39.5 9.813 144.0 0.0371 69.6 0.8810 -17.2 0.250 0.6667 -48.9 9.179 136.4 0.0441 65.9 0.8390 -20.0 0.300 0.6163 -55.7 8.496 130.3 0.0497 63.9 0.7993 -22.2 0.400 0.5262 -68.3 7.323 120.7 0.0590 60.3 0.7360 -24.9 0.500 0.4402 -79.9 6.315 111.4 0.0665 58.6 0.6831 -26.5 0.600 0.3841 -90.6 5.567 104.7 0.0737 57.4 0.6416 -27.4 0.700 0.3357 -99.2 4.949 98.9 0.0801 57.5 0.6122 -28.2 0.800 0.2969 -107.9 4.420 93.9 0.0868 57.1 0.5900 -28.6 0.900 0.2639 -115.4 4.011 89.3 0.0938 57.5 0.5748 -29.2 1.000 0.2358 -125.2 3.681 85.2 0.0999 58.0 0.5601 -29.7 1.100 0.2153 -135.6 3.405 81.4 0.1065 58.3 0.5484 -30.5 1.200 0.2028 -145.0 3.156 77.8 0.1134 58.6 0.5381 -31.2 1.300 0.1894 -153.8 2.932 74.6 0.1206 58.8 0.5299 -32.0 1.400 0.1814 -163.3 2.748 71.5 0.1272 59.0 0.5227 -33.0 1.500 0.1775 -169.9 2.609 68.7 0.1343 59.1 0.5167 -33.8 1.600 0.1763 -179.1 2.454 65.5 0.1419 59.1 0.5112 -34.9 1.700 0.1792 171.8 2.336 62.8 0.1494 59.0 0.5051 -36.0 1.800 0.1837 162.6 2.231 60.2 0.1573 58.9 0.5008 -37.4 1.900 0.1931 157.1 2.141 57.3 0.1650 58.8 0.4949 -38.7 2.000 0.1970 150.1 2.042 54.8 0.1732 58.5 0.4905 -39.9 2.200 0.2123 140.3 1.886 49.9 0.1901 57.8 0.4784 -43.0 2.400 0.2330 130.5 1.767 45.0 0.2071 57.0 0.4656 -46.1 2.600 0.2588 123.2 1.662 40.7 0.2247 55.9 0.4523 -49.6 2.800 0.2811 116.7 1.571 36.5 0.2428 54.7 0.4396 -53.5 3.000 0.3056 111.9 1.492 32.3 0.2611 53.2 0.4232 -57.6 3.500 0.3735 101.7 1.325 22.5 0.3092 49.1 0.3831 -70.7 4.000 0.4309 93.4 1.202 13.4 0.3590 43.9 0.3404 -87.4 4.500 0.4875 87.2 1.102 5.1 0.4083 38.1 0.3062 -107.5 5.000 0.5295 81.4 1.021 -2.4 0.4561 31.8 0.2882 -129.7 5.500 0.5706 75.7 0.935 -9.1 0.4994 25.0 0.2885 -153.8 6.000 0.5994 69.9 0.868 -15.1 0.5386 18.0 0.3058 -175.9 ! ! SIEMENS AG Semiconductor Group, Munich