! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 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 0.8752 -1.5 11.147 178.7 0.0012 84.6 0.9919 -0.6 0.020 0.8732 -2.9 11.399 177.5 0.0027 90.2 0.9969 -1.2 0.050 0.8722 -7.4 11.047 174.6 0.0061 84.6 0.9904 -3.2 0.100 0.8694 -14.8 10.999 169.3 0.0121 83.1 0.9820 -6.4 0.150 0.8608 -22.7 10.852 163.9 0.0179 77.5 0.9724 -9.5 0.200 0.8446 -29.2 10.574 158.8 0.0235 74.1 0.9565 -12.4 0.250 0.8242 -36.3 10.327 154.0 0.0286 70.7 0.9391 -15.2 0.300 0.8086 -43.3 10.117 148.8 0.0334 67.0 0.9168 -17.7 0.400 0.7661 -55.5 9.379 140.3 0.0421 60.8 0.8735 -22.2 0.500 0.7281 -67.2 8.696 132.3 0.0486 55.7 0.8294 -25.9 0.600 0.6909 -77.9 8.063 125.0 0.0538 51.3 0.7874 -28.8 0.700 0.6562 -87.4 7.441 119.6 0.0579 47.6 0.7492 -31.4 0.800 0.6273 -95.5 6.825 113.9 0.0614 45.4 0.7167 -33.4 0.900 0.6014 -102.7 6.328 109.6 0.0642 42.4 0.6901 -35.2 1.000 0.5778 -109.8 5.876 105.1 0.0670 40.9 0.6668 -36.7 1.100 0.5683 -115.9 5.485 101.2 0.0687 39.3 0.6469 -38.0 1.200 0.5500 -121.9 5.137 97.3 0.0709 38.1 0.6306 -39.5 1.300 0.5399 -127.7 4.811 94.0 0.0727 37.2 0.6153 -40.5 1.400 0.5322 -132.6 4.528 90.5 0.0738 36.5 0.6028 -41.8 1.500 0.5236 -136.7 4.279 87.6 0.0752 35.9 0.5923 -43.0 1.600 0.5198 -140.7 4.042 85.0 0.0765 35.7 0.5841 -44.1 1.700 0.5136 -144.7 3.846 82.2 0.0780 35.2 0.5765 -45.3 1.800 0.5080 -148.4 3.638 79.9 0.0796 35.1 0.5721 -46.4 1.900 0.5013 -151.2 3.471 77.4 0.0805 34.7 0.5667 -47.6 2.000 0.4989 -155.0 3.330 74.7 0.0823 34.7 0.5636 -48.8 2.200 0.4930 -160.5 3.062 70.2 0.0849 34.5 0.5578 -51.2 2.400 0.4888 -165.7 2.812 66.0 0.0876 34.5 0.5540 -53.6 2.600 0.4851 -170.2 2.625 61.8 0.0904 34.8 0.5512 -56.0 2.800 0.4846 -174.9 2.456 58.2 0.0940 35.0 0.5521 -58.3 3.000 0.4825 -179.4 2.306 54.1 0.0970 35.2 0.5525 -60.8 3.500 0.4765 171.0 2.018 45.3 0.1055 35.4 0.5573 -67.1 4.000 0.4752 162.1 1.802 36.5 0.1157 35.1 0.5668 -73.7 4.500 0.4710 153.1 1.625 28.0 0.1268 34.2 0.5788 -80.9 5.000 0.4668 144.3 1.479 19.9 0.1384 33.3 0.5908 -88.3 5.500 0.4718 135.2 1.356 11.6 0.1511 31.8 0.5999 -96.0 6.000 0.4800 126.8 1.257 4.5 0.1645 29.6 0.6077 -103.7 ! ! SIEMENS AG Semiconductor Group, Munich