! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 3.5 V IC = 4 mA ! Common Emitter S-Parameters: May 1997 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.8698 -1.5 11.123 178.9 0.0013 89.0 0.9916 -0.6 0.020 0.8718 -3.3 11.418 177.5 0.0029 92.4 0.9979 -1.3 0.050 0.8640 -7.8 11.115 174.5 0.0059 83.0 0.9902 -3.2 0.100 0.8641 -15.6 11.026 169.0 0.0128 82.9 0.9819 -6.5 0.150 0.8547 -23.3 10.922 163.6 0.0185 77.7 0.9719 -9.7 0.200 0.8373 -30.4 10.585 158.2 0.0241 73.6 0.9539 -12.6 0.250 0.8214 -37.5 10.287 153.4 0.0295 70.2 0.9365 -15.4 0.300 0.8008 -44.8 10.079 148.1 0.0341 66.5 0.9127 -18.0 0.400 0.7611 -57.5 9.338 139.3 0.0424 60.2 0.8684 -22.4 0.500 0.7205 -69.4 8.608 131.3 0.0487 54.8 0.8237 -26.1 0.600 0.6808 -79.9 7.960 124.1 0.0545 50.7 0.7814 -29.0 0.700 0.6541 -89.3 7.324 118.7 0.0581 46.8 0.7434 -31.4 0.800 0.6200 -98.0 6.703 113.0 0.0613 44.3 0.7105 -33.4 0.900 0.5989 -105.5 6.223 108.5 0.0648 42.2 0.6827 -35.1 1.000 0.5742 -112.0 5.764 104.1 0.0668 40.3 0.6610 -36.7 1.100 0.5670 -118.4 5.363 100.3 0.0683 38.9 0.6422 -37.9 1.200 0.5522 -124.5 5.018 96.4 0.0707 37.5 0.6267 -39.3 1.300 0.5401 -129.9 4.698 93.2 0.0724 36.6 0.6121 -40.4 1.400 0.5321 -134.9 4.417 89.7 0.0735 36.0 0.6006 -41.7 1.500 0.5234 -138.9 4.176 86.7 0.0755 35.5 0.5902 -42.8 1.600 0.5216 -143.2 3.943 84.1 0.0760 35.3 0.5824 -44.0 1.700 0.5142 -147.2 3.753 81.3 0.0773 34.9 0.5736 -45.1 1.800 0.5099 -150.7 3.547 79.0 0.0790 35.0 0.5697 -46.3 1.900 0.5075 -153.3 3.385 76.5 0.0802 34.3 0.5663 -47.5 2.000 0.5047 -156.8 3.244 73.9 0.0821 34.6 0.5624 -48.6 2.200 0.4991 -162.6 2.983 69.3 0.0845 34.5 0.5572 -51.1 2.400 0.4979 -167.8 2.739 65.2 0.0872 34.5 0.5544 -53.6 2.600 0.4916 -172.2 2.563 61.0 0.0900 35.0 0.5520 -56.0 2.800 0.4908 -176.7 2.390 57.3 0.0935 35.2 0.5532 -58.4 3.000 0.4876 179.1 2.244 53.2 0.0970 35.3 0.5536 -60.9 3.500 0.4814 169.5 1.965 44.5 0.1054 36.0 0.5592 -67.2 4.000 0.4812 160.7 1.754 35.6 0.1158 35.4 0.5687 -74.0 4.500 0.4789 151.6 1.580 27.2 0.1273 34.8 0.5806 -81.2 5.000 0.4777 142.7 1.439 19.0 0.1391 33.7 0.5931 -88.7 5.500 0.4809 134.2 1.321 10.8 0.1518 32.3 0.6025 -96.5 6.000 0.4891 125.4 1.221 3.5 0.1653 29.9 0.6108 -104.3 ! ! SIEMENS AG Semiconductor Group, Munich