! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 2.5 V IC = 10 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 0.6849 -3.1 20.088 178.0 0.0012 86.0 0.9774 -0.9 0.020 0.6846 -6.6 20.445 175.8 0.0029 90.6 0.9840 -2.1 0.050 0.6855 -15.5 19.824 170.4 0.0062 81.0 0.9703 -5.3 0.100 0.6723 -31.0 19.299 161.0 0.0118 75.6 0.9471 -10.4 0.150 0.6556 -44.9 18.266 152.3 0.0164 69.8 0.9109 -14.9 0.200 0.6346 -57.6 17.035 144.6 0.0207 64.0 0.8695 -18.6 0.250 0.6111 -70.0 15.824 137.9 0.0244 60.2 0.8264 -21.5 0.300 0.5967 -80.2 14.710 131.5 0.0272 56.0 0.7852 -23.8 0.400 0.5651 -97.4 12.584 121.7 0.0316 52.0 0.7166 -26.8 0.500 0.5477 -111.6 10.843 113.8 0.0345 48.3 0.6650 -28.7 0.600 0.5341 -122.7 9.475 107.4 0.0371 46.6 0.6254 -29.7 0.700 0.5203 -131.9 8.375 102.7 0.0390 45.7 0.5972 -30.6 0.800 0.5128 -138.8 7.447 98.2 0.0410 45.3 0.5751 -31.4 0.900 0.5088 -144.9 6.755 94.6 0.0430 45.2 0.5596 -32.1 1.000 0.5041 -150.5 6.143 90.9 0.0450 45.5 0.5478 -33.0 1.100 0.5082 -155.1 5.634 87.9 0.0463 45.5 0.5381 -33.8 1.200 0.5039 -159.1 5.204 84.8 0.0486 45.9 0.5311 -34.8 1.300 0.5044 -163.2 4.813 82.2 0.0510 46.7 0.5250 -35.7 1.400 0.5060 -166.0 4.496 79.3 0.0521 47.5 0.5208 -36.9 1.500 0.5041 -169.2 4.218 76.8 0.0545 47.6 0.5182 -38.0 1.600 0.5071 -171.5 3.961 74.6 0.0564 48.7 0.5156 -39.2 1.700 0.5051 -174.6 3.753 72.2 0.0586 48.5 0.5128 -40.5 1.800 0.5063 -176.7 3.537 70.4 0.0606 49.3 0.5125 -41.8 1.900 0.5050 -178.7 3.363 68.1 0.0626 49.1 0.5116 -43.2 2.000 0.5049 178.9 3.209 65.9 0.0652 49.7 0.5117 -44.5 2.200 0.5049 175.2 2.939 61.9 0.0695 50.1 0.5133 -47.2 2.400 0.5112 171.5 2.690 58.2 0.0741 50.3 0.5140 -50.0 2.600 0.5049 168.7 2.508 54.5 0.0789 50.3 0.5169 -52.8 2.800 0.5091 165.3 2.335 51.1 0.0842 50.8 0.5200 -55.5 3.000 0.5099 162.0 2.190 47.3 0.0890 50.4 0.5239 -58.3 3.500 0.5065 154.5 1.904 39.0 0.1019 49.8 0.5340 -65.4 4.000 0.5121 147.2 1.692 30.5 0.1160 48.3 0.5471 -72.7 4.500 0.5135 139.2 1.520 22.3 0.1305 46.4 0.5617 -80.4 5.000 0.5159 131.6 1.380 14.4 0.1454 43.8 0.5767 -88.3 5.500 0.5206 123.9 1.259 6.4 0.1612 41.1 0.5885 -96.4 6.000 0.5268 116.1 1.159 -0.7 0.1771 37.5 0.5972 -104.6 ! ! SIEMENS AG Semiconductor Group, Munich