! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 0.5 V IC = 0.8 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 0.9668 -0.8 2.789 179.6 0.0021 92.5 0.9979 -0.4 0.020 0.9657 -1.9 2.836 178.3 0.0047 85.4 0.9983 -0.9 0.050 0.9646 -4.2 2.839 176.1 0.0120 86.2 0.9964 -2.2 0.100 0.9647 -8.3 2.805 172.1 0.0237 85.7 0.9935 -4.3 0.150 0.9562 -12.6 2.841 167.1 0.0355 80.3 0.9882 -6.6 0.200 0.9433 -16.5 2.784 163.4 0.0468 78.7 0.9837 -8.6 0.250 0.9368 -21.0 2.768 159.3 0.0580 75.7 0.9769 -10.7 0.300 0.9196 -25.1 2.776 155.0 0.0687 73.3 0.9656 -12.8 0.400 0.8872 -32.9 2.685 148.0 0.0882 67.8 0.9460 -16.8 0.500 0.8443 -40.5 2.552 139.7 0.1062 63.2 0.9203 -20.3 0.600 0.8138 -48.3 2.498 132.9 0.1222 58.8 0.8931 -23.5 0.700 0.7633 -55.7 2.427 126.3 0.1351 54.5 0.8647 -26.6 0.800 0.7230 -62.9 2.322 119.7 0.1464 50.9 0.8349 -29.4 0.900 0.6804 -69.0 2.207 113.7 0.1557 47.6 0.8060 -31.9 1.000 0.6418 -75.9 2.116 108.5 0.1635 44.6 0.7812 -34.1 1.100 0.6035 -82.4 2.047 103.2 0.1705 42.2 0.7584 -36.2 1.200 0.5620 -88.8 1.962 98.1 0.1762 39.7 0.7371 -38.3 1.300 0.5326 -95.3 1.893 93.4 0.1805 38.0 0.7154 -39.8 1.400 0.4943 -101.9 1.820 88.7 0.1830 36.2 0.6951 -41.7 1.500 0.4670 -108.2 1.773 84.6 0.1847 35.3 0.6747 -43.0 1.600 0.4322 -115.9 1.696 79.8 0.1874 34.1 0.6595 -44.3 1.700 0.4118 -122.9 1.650 76.1 0.1878 33.7 0.6390 -45.8 1.800 0.3882 -129.7 1.595 72.3 0.1913 33.2 0.6284 -47.0 1.900 0.3731 -137.0 1.550 68.6 0.1921 32.7 0.6152 -48.7 2.000 0.3556 -144.0 1.497 64.8 0.1950 32.5 0.6068 -49.9 2.200 0.3313 -158.9 1.419 58.0 0.1966 32.8 0.5809 -53.1 2.400 0.3221 -173.8 1.348 51.7 0.2006 33.2 0.5621 -56.2 2.600 0.3213 171.2 1.286 45.9 0.2068 34.8 0.5415 -59.1 2.800 0.3274 158.4 1.224 40.5 0.2141 35.4 0.5316 -63.1 3.000 0.3453 146.6 1.177 34.9 0.2228 37.0 0.5100 -67.1 3.500 0.4053 123.6 1.053 23.4 0.2569 38.9 0.4812 -80.2 4.000 0.4656 108.0 0.959 13.6 0.3028 39.1 0.4499 -97.3 4.500 0.5182 96.6 0.875 5.5 0.3569 36.3 0.4307 -117.3 5.000 0.5572 87.0 0.808 -1.7 0.4156 31.5 0.4190 -138.7 5.500 0.5943 79.3 0.748 -7.2 0.4696 25.2 0.4229 -160.5 6.000 0.6169 72.4 0.702 -11.5 0.5173 17.8 0.4369 178.9 ! ! SIEMENS AG Semiconductor Group, Munich