! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 V IC = 1.5 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 0.9533 -0.9 5.021 178.9 0.0015 90.1 0.9976 -0.5 0.020 0.9537 -1.8 4.935 177.7 0.0032 91.8 0.9864 -0.9 0.050 0.9531 -4.6 4.933 175.5 0.0085 85.1 0.9964 -2.2 0.100 0.9455 -8.9 4.994 171.2 0.0165 84.4 0.9916 -4.3 0.150 0.9350 -13.1 4.871 165.9 0.0248 80.9 0.9843 -6.6 0.200 0.9230 -17.8 4.877 161.6 0.0326 78.7 0.9771 -8.5 0.250 0.9025 -22.6 4.870 156.9 0.0399 75.7 0.9663 -10.7 0.300 0.8861 -26.4 4.709 152.7 0.0468 74.1 0.9518 -12.5 0.400 0.8406 -34.4 4.490 145.4 0.0601 69.2 0.9282 -15.9 0.500 0.7789 -42.0 4.294 136.7 0.0710 65.2 0.8961 -19.1 0.600 0.7295 -49.3 4.099 129.9 0.0806 61.6 0.8614 -21.8 0.700 0.6819 -55.6 3.845 123.8 0.0891 59.1 0.8323 -24.0 0.800 0.6327 -61.7 3.602 117.7 0.0969 56.4 0.8050 -25.9 0.900 0.5788 -67.3 3.409 112.0 0.1031 54.5 0.7817 -27.5 1.000 0.5272 -73.2 3.251 106.9 0.1082 53.2 0.7570 -29.0 1.100 0.4855 -79.2 3.101 102.2 0.1129 52.0 0.7359 -30.4 1.200 0.4434 -84.3 2.935 97.6 0.1174 51.1 0.7172 -31.7 1.300 0.4088 -89.2 2.780 93.8 0.1216 50.7 0.7000 -32.7 1.400 0.3732 -94.3 2.637 89.8 0.1251 50.5 0.6855 -33.9 1.500 0.3510 -99.3 2.531 86.5 0.1294 50.3 0.6727 -34.8 1.600 0.3188 -105.7 2.396 82.4 0.1337 50.0 0.6620 -35.8 1.700 0.2877 -111.5 2.316 79.2 0.1376 50.2 0.6505 -36.8 1.800 0.2598 -118.3 2.237 75.8 0.1425 50.5 0.6417 -37.8 1.900 0.2416 -124.9 2.164 72.6 0.1468 50.8 0.6312 -38.9 2.000 0.2205 -132.1 2.080 69.4 0.1514 50.9 0.6239 -39.9 2.200 0.1950 -146.7 1.929 63.9 0.1610 51.4 0.6097 -42.4 2.400 0.1738 -165.2 1.831 58.1 0.1723 52.3 0.5931 -44.8 2.600 0.1717 175.3 1.723 53.2 0.1844 52.5 0.5801 -47.5 2.800 0.1763 158.4 1.645 48.4 0.1976 53.0 0.5673 -50.4 3.000 0.1978 145.2 1.563 43.5 0.2113 53.0 0.5540 -53.6 3.500 0.2601 121.3 1.401 32.6 0.2511 51.9 0.5241 -63.6 4.000 0.3256 107.2 1.286 22.7 0.2991 49.7 0.4900 -76.5 4.500 0.3908 97.6 1.191 13.8 0.3525 45.6 0.4574 -91.8 5.000 0.4423 90.0 1.106 5.3 0.4078 40.5 0.4332 -109.2 5.500 0.4913 83.3 1.014 -2.2 0.4625 34.0 0.4116 -128.7 6.000 0.5331 77.0 0.948 -9.2 0.5138 26.8 0.4029 -148.8 ! ! SIEMENS AG Semiconductor Group, Munich