! SIEMENS Small Signal Semiconductors ! BFP181 ! Si NPN RF Bipolar Junction Transistor in SOT143 ! VCE = 2 V IC = 2.5 mA ! Common Emitter S-Parameters: March 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9141 -1.3 7.841 179.3 0.0015 79.9 0.9955 -0.5 0.020 0.9240 -2.6 7.811 178.6 0.0026 82.2 0.9989 -1.2 0.050 0.9174 -5.9 7.846 175.1 0.0072 90.6 0.9921 -2.8 0.100 0.9018 -12.4 7.725 170.2 0.0141 82.7 0.9883 -5.5 0.150 0.8969 -18.6 7.650 165.3 0.0213 78.6 0.9794 -8.1 0.200 0.8791 -24.6 7.618 160.4 0.0277 75.9 0.9694 -10.8 0.250 0.8690 -30.4 7.441 155.7 0.0341 73.0 0.9546 -13.3 0.300 0.8512 -36.2 7.281 151.8 0.0405 68.6 0.9411 -15.7 0.400 0.8027 -47.4 6.960 142.5 0.0509 63.0 0.9069 -20.0 0.500 0.7516 -58.1 6.532 134.4 0.0600 57.5 0.8684 -23.8 0.600 0.7082 -67.8 6.142 127.5 0.0678 52.8 0.8308 -27.1 0.700 0.6626 -77.2 5.688 121.0 0.0739 48.9 0.7964 -29.7 0.800 0.6205 -86.2 5.376 114.9 0.0792 45.5 0.7651 -32.0 0.900 0.5835 -94.9 5.052 109.2 0.0839 42.5 0.7350 -34.1 1.000 0.5476 -103.6 4.706 104.0 0.0869 39.8 0.7069 -35.9 1.100 0.5151 -111.8 4.453 99.1 0.0904 37.3 0.6847 -37.5 1.200 0.4895 -119.6 4.171 95.0 0.0931 35.1 0.6650 -39.1 1.300 0.4703 -127.4 3.919 90.9 0.0955 33.8 0.6465 -40.4 1.400 0.4469 -134.4 3.707 87.0 0.0976 32.4 0.6306 -41.7 1.500 0.4393 -142.0 3.529 82.9 0.0994 31.3 0.6163 -42.8 1.600 0.4253 -149.1 3.339 79.4 0.1016 30.1 0.6056 -43.9 1.700 0.4163 -156.8 3.186 75.8 0.1033 29.2 0.5924 -45.3 1.800 0.4098 -164.3 3.040 72.3 0.1043 28.4 0.5802 -46.3 1.900 0.4045 -170.9 2.902 69.2 0.1061 27.2 0.5707 -47.7 2.000 0.4008 -177.4 2.766 66.0 0.1075 26.8 0.5625 -48.7 2.200 0.4026 171.0 2.538 59.9 0.1106 25.4 0.5474 -51.4 2.400 0.4133 159.5 2.351 54.3 0.1134 24.4 0.5332 -54.0 2.600 0.4304 149.9 2.176 49.0 0.1160 23.7 0.5190 -56.7 2.800 0.4466 141.0 2.028 43.3 0.1186 22.7 0.5092 -59.7 3.000 0.4631 133.0 1.901 38.3 0.1213 21.9 0.4976 -62.6 3.500 0.5139 116.2 1.623 26.3 0.1296 20.2 0.4820 -70.9 4.000 0.5623 103.9 1.410 15.5 0.1370 18.2 0.4666 -80.5 4.500 0.6027 93.9 1.233 5.3 0.1443 16.4 0.4572 -91.1 5.000 0.6383 85.9 1.093 -3.5 0.1520 15.1 0.4528 -101.8 5.500 0.6672 79.7 0.977 -12.1 0.1636 13.5 0.4602 -112.9 6.000 0.7006 73.6 0.878 -20.3 0.1748 11.0 0.4727 -124.1 ! ! SIEMENS AG Semiconductor Group, Munich