! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 8 V IC = 2 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 0.9353 -1.2 6.386 178.8 0.0015 91.4 0.9968 -0.5 0.020 0.9330 -2.1 6.471 177.4 0.0028 90.3 0.9865 -1.1 0.050 0.9318 -5.5 6.378 174.6 0.0083 86.5 0.9942 -2.6 0.100 0.9210 -10.6 6.325 169.7 0.0164 84.3 0.9872 -5.0 0.150 0.9072 -15.7 6.322 163.5 0.0245 80.7 0.9785 -7.8 0.200 0.8893 -20.7 6.152 158.7 0.0319 77.4 0.9657 -9.9 0.250 0.8677 -26.0 6.083 153.5 0.0388 74.6 0.9518 -12.1 0.300 0.8347 -30.8 5.954 148.4 0.0457 72.2 0.9325 -14.2 0.400 0.7796 -39.5 5.533 140.5 0.0575 67.5 0.8959 -17.8 0.500 0.7122 -47.5 5.116 131.7 0.0674 63.6 0.8594 -20.7 0.600 0.6509 -55.2 4.838 124.4 0.0764 60.7 0.8227 -23.1 0.700 0.5912 -62.1 4.522 117.9 0.0831 58.5 0.7884 -25.1 0.800 0.5386 -68.0 4.183 111.9 0.0897 56.8 0.7586 -26.6 0.900 0.4897 -72.8 3.858 106.7 0.0956 55.3 0.7333 -27.9 1.000 0.4449 -79.0 3.625 102.1 0.1007 54.5 0.7137 -29.1 1.100 0.4019 -84.9 3.428 97.6 0.1056 54.1 0.6946 -30.2 1.200 0.3621 -90.0 3.226 93.1 0.1109 53.6 0.6787 -31.3 1.300 0.3264 -95.4 3.043 89.4 0.1157 53.6 0.6635 -32.1 1.400 0.2919 -100.1 2.878 85.7 0.1193 53.7 0.6506 -33.1 1.500 0.2691 -105.7 2.752 82.4 0.1242 53.9 0.6383 -33.9 1.600 0.2409 -112.3 2.605 78.6 0.1293 54.0 0.6288 -34.7 1.700 0.2233 -118.6 2.485 75.8 0.1342 54.4 0.6182 -35.6 1.800 0.1986 -126.5 2.385 72.9 0.1397 54.3 0.6121 -36.7 1.900 0.1847 -134.2 2.299 69.8 0.1452 54.6 0.6047 -37.8 2.000 0.1683 -142.9 2.205 66.9 0.1508 54.8 0.5984 -38.8 2.200 0.1496 -160.0 2.047 61.5 0.1629 55.4 0.5832 -41.1 2.400 0.1400 179.1 1.929 56.2 0.1755 55.5 0.5715 -43.7 2.600 0.1475 159.6 1.817 51.5 0.1902 55.6 0.5564 -46.3 2.800 0.1656 144.9 1.729 47.1 0.2041 55.2 0.5465 -49.4 3.000 0.1875 133.5 1.642 42.3 0.2200 54.9 0.5308 -52.5 3.500 0.2559 114.1 1.466 32.0 0.2623 52.8 0.4990 -62.6 4.000 0.3194 102.9 1.351 22.4 0.3100 49.7 0.4639 -75.5 4.500 0.3845 95.2 1.243 13.6 0.3612 45.2 0.4312 -90.9 5.000 0.4381 88.4 1.156 5.1 0.4152 39.7 0.4020 -108.2 5.500 0.4880 82.3 1.067 -2.5 0.4669 33.1 0.3804 -127.9 6.000 0.5244 76.5 0.997 -9.5 0.5158 26.1 0.3750 -148.3 ! ! f Fmin Gammaopt rn/50 ! GHz dB MAG ANG - 0.450 1.35 0.60 17 0.40 0.900 1.45 0.50 36 0.40 1.800 1.80 0.31 80 0.37 ! ! SIEMENS AG Semiconductor Group, Munich