! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 4 V IC = 0.5 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 0.9819 -0.6 1.822 179.7 0.0016 91.6 0.9999 -0.3 0.020 0.9778 -1.1 1.829 178.7 0.0036 87.0 0.9942 -0.6 0.050 0.9782 -3.0 1.814 177.1 0.0088 90.5 0.9987 -1.4 0.100 0.9760 -5.9 1.817 174.3 0.0174 86.4 0.9997 -2.8 0.150 0.9751 -8.7 1.817 170.3 0.0260 83.5 0.9955 -4.4 0.200 0.9692 -11.8 1.806 167.4 0.0347 81.6 0.9921 -5.7 0.250 0.9670 -15.0 1.834 164.3 0.0432 79.3 0.9915 -7.1 0.300 0.9584 -18.0 1.833 160.9 0.0514 77.8 0.9858 -8.5 0.400 0.9430 -23.6 1.777 155.7 0.0670 73.4 0.9782 -11.2 0.500 0.9159 -29.6 1.753 148.7 0.0819 69.7 0.9681 -13.8 0.600 0.8973 -35.8 1.755 143.0 0.0959 65.7 0.9527 -16.5 0.700 0.8735 -41.2 1.733 137.5 0.1086 62.0 0.9389 -19.0 0.800 0.8408 -47.0 1.684 131.8 0.1200 58.3 0.9239 -21.4 0.900 0.8131 -51.9 1.634 126.3 0.1306 55.4 0.9090 -23.4 1.000 0.7846 -58.0 1.616 121.5 0.1387 52.2 0.8930 -25.7 1.100 0.7491 -63.7 1.599 116.5 0.1466 49.5 0.8769 -27.7 1.200 0.7128 -69.3 1.564 111.5 0.1531 46.7 0.8606 -29.9 1.300 0.6828 -74.9 1.536 106.9 0.1585 44.5 0.8433 -31.5 1.400 0.6486 -80.2 1.497 102.2 0.1615 42.2 0.8275 -33.5 1.500 0.6186 -85.8 1.482 98.1 0.1649 40.5 0.8114 -35.0 1.600 0.5861 -92.1 1.433 93.3 0.1678 38.7 0.7988 -36.5 1.700 0.5541 -97.9 1.406 89.5 0.1694 37.6 0.7833 -37.9 1.800 0.5207 -103.3 1.383 85.2 0.1723 36.6 0.7729 -39.3 1.900 0.4999 -110.2 1.369 81.2 0.1723 35.4 0.7612 -41.0 2.000 0.4685 -116.5 1.337 77.1 0.1741 34.7 0.7524 -42.2 2.200 0.4296 -129.3 1.266 70.0 0.1720 34.1 0.7285 -45.4 2.400 0.3880 -143.9 1.232 63.0 0.1718 34.6 0.7101 -48.2 2.600 0.3622 -158.8 1.177 56.9 0.1736 36.2 0.6921 -51.1 2.800 0.3452 -173.9 1.142 50.9 0.1747 37.7 0.6833 -54.6 3.000 0.3495 172.2 1.094 45.0 0.1783 40.7 0.6656 -58.0 3.500 0.3818 140.3 0.990 32.7 0.2021 47.3 0.6460 -69.0 4.000 0.4340 118.8 0.911 22.3 0.2525 51.6 0.6194 -83.1 4.500 0.4878 103.6 0.840 14.0 0.3197 50.3 0.5992 -100.1 5.000 0.5305 92.1 0.782 7.0 0.3947 45.3 0.5775 -118.9 5.500 0.5687 82.6 0.730 1.5 0.4658 37.6 0.5555 -139.1 6.000 0.5865 74.7 0.700 -2.9 0.5284 28.9 0.5434 -159.4 ! ! SIEMENS AG Semiconductor Group, Munich