! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 8 V IC = 3 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 0.9117 -1.0 8.881 178.8 0.0013 86.1 0.9912 -0.5 0.020 0.9123 -2.5 8.932 177.7 0.0029 94.3 0.9960 -1.0 0.050 0.9129 -6.0 8.798 175.4 0.0063 86.1 0.9907 -2.7 0.100 0.9071 -12.0 8.805 171.0 0.0124 83.6 0.9840 -5.4 0.150 0.9030 -18.2 8.653 166.6 0.0180 81.1 0.9806 -8.1 0.200 0.8910 -23.8 8.581 162.1 0.0237 76.1 0.9701 -10.6 0.250 0.8786 -29.5 8.398 158.0 0.0295 73.7 0.9587 -13.1 0.300 0.8608 -35.0 8.230 153.5 0.0346 70.1 0.9423 -15.4 0.400 0.8278 -45.4 7.852 145.6 0.0439 64.4 0.9107 -19.6 0.500 0.7948 -55.9 7.474 138.0 0.0515 59.0 0.8749 -23.5 0.600 0.7592 -65.1 6.998 131.2 0.0583 54.9 0.8392 -26.8 0.700 0.7243 -73.4 6.547 126.0 0.0636 50.7 0.8061 -29.5 0.800 0.6924 -81.6 6.102 120.1 0.0682 47.4 0.7750 -32.0 0.900 0.6619 -89.0 5.772 115.2 0.0725 44.5 0.7475 -34.1 1.000 0.6340 -96.0 5.419 110.6 0.0754 42.4 0.7208 -36.1 1.100 0.6189 -102.2 5.090 106.5 0.0778 40.1 0.6996 -37.7 1.200 0.5943 -108.0 4.796 102.5 0.0806 38.1 0.6816 -39.4 1.300 0.5827 -113.7 4.515 99.1 0.0827 36.8 0.6642 -40.8 1.400 0.5693 -118.8 4.262 95.4 0.0842 35.3 0.6498 -42.3 1.500 0.5581 -123.2 4.048 92.2 0.0859 34.4 0.6378 -43.5 1.600 0.5502 -127.5 3.836 89.4 0.0875 33.7 0.6282 -44.8 1.700 0.5409 -132.1 3.674 86.3 0.0885 32.8 0.6173 -46.1 1.800 0.5276 -136.6 3.491 83.7 0.0897 32.3 0.6091 -47.2 1.900 0.5192 -139.4 3.341 81.0 0.0902 31.5 0.6024 -48.5 2.000 0.5155 -143.2 3.211 78.3 0.0922 31.2 0.5976 -49.6 2.200 0.5050 -149.2 2.955 73.5 0.0946 30.2 0.5910 -52.2 2.400 0.4983 -155.5 2.725 69.0 0.0961 30.0 0.5824 -54.5 2.600 0.4938 -159.9 2.545 64.7 0.0990 29.6 0.5793 -56.9 2.800 0.4869 -165.6 2.391 60.8 0.1011 29.7 0.5771 -59.2 3.000 0.4834 -169.8 2.242 56.6 0.1036 29.3 0.5770 -61.6 3.500 0.4730 179.6 1.969 47.3 0.1107 29.3 0.5800 -67.7 4.000 0.4682 169.7 1.757 38.4 0.1185 29.0 0.5866 -74.3 4.500 0.4641 159.9 1.596 29.6 0.1276 28.8 0.5954 -81.2 5.000 0.4585 150.9 1.454 21.3 0.1368 28.2 0.6071 -88.4 5.500 0.4620 141.5 1.334 13.0 0.1480 27.2 0.6158 -96.1 6.000 0.4673 132.4 1.237 5.6 0.1600 25.8 0.6220 -103.6 ! ! SIEMENS AG Semiconductor Group, Munich