! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 1.75 V IC = 0.5 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 0.9829 -0.4 1.785 179.9 0.0015 85.0 0.9985 -0.3 0.020 0.9803 -1.1 1.826 178.9 0.0033 87.6 0.9999 -0.6 0.050 0.9847 -2.7 1.809 177.6 0.0074 89.0 0.9991 -1.5 0.100 0.9808 -5.8 1.799 174.9 0.0145 86.0 0.9976 -2.9 0.150 0.9826 -9.0 1.805 172.4 0.0213 84.9 0.9984 -4.4 0.200 0.9796 -11.7 1.793 169.4 0.0287 82.1 0.9962 -5.8 0.250 0.9733 -14.5 1.766 167.3 0.0356 80.3 0.9951 -7.2 0.300 0.9731 -17.3 1.786 164.1 0.0425 77.8 0.9906 -8.6 0.400 0.9667 -23.2 1.774 159.0 0.0560 74.1 0.9876 -11.4 0.500 0.9547 -28.9 1.749 153.6 0.0694 70.1 0.9808 -14.2 0.600 0.9413 -34.3 1.721 148.0 0.0816 66.5 0.9722 -16.9 0.700 0.9311 -39.9 1.699 143.9 0.0936 62.8 0.9637 -19.5 0.800 0.9157 -45.2 1.667 138.7 0.1039 58.9 0.9516 -22.2 0.900 0.9013 -50.2 1.644 134.2 0.1141 55.2 0.9407 -24.7 1.000 0.8855 -55.5 1.596 129.7 0.1235 51.6 0.9301 -27.3 1.100 0.8773 -60.3 1.562 125.4 0.1319 48.5 0.9192 -29.5 1.200 0.8584 -65.4 1.517 121.0 0.1403 45.2 0.9102 -32.0 1.300 0.8426 -70.3 1.486 116.8 0.1469 42.2 0.8974 -34.0 1.400 0.8348 -74.7 1.455 112.7 0.1528 39.2 0.8873 -36.3 1.500 0.8166 -79.4 1.436 108.8 0.1585 36.5 0.8763 -38.2 1.600 0.7985 -83.8 1.405 105.0 0.1630 34.2 0.8664 -40.3 1.700 0.7912 -88.3 1.377 101.2 0.1657 31.5 0.8522 -42.2 1.800 0.7704 -92.4 1.332 97.4 0.1699 29.4 0.8444 -43.9 1.900 0.7623 -95.8 1.297 94.1 0.1732 26.8 0.8384 -45.8 2.000 0.7499 -99.8 1.271 89.9 0.1771 24.8 0.8333 -47.5 2.200 0.7250 -107.3 1.221 83.5 0.1805 20.4 0.8194 -51.1 2.400 0.7070 -114.1 1.144 77.3 0.1825 17.0 0.8058 -54.3 2.600 0.6913 -120.3 1.107 71.4 0.1836 13.9 0.7958 -57.4 2.800 0.6790 -126.2 1.049 66.4 0.1853 11.0 0.7903 -60.4 3.000 0.6630 -132.1 1.008 60.8 0.1840 8.1 0.7837 -63.5 3.500 0.6321 -145.3 0.923 48.5 0.1837 2.5 0.7771 -70.6 4.000 0.6165 -157.5 0.848 37.4 0.1795 -2.3 0.7753 -78.1 4.500 0.6030 -169.1 0.786 27.2 0.1733 -6.0 0.7798 -85.7 5.000 0.5892 179.2 0.730 17.9 0.1657 -8.4 0.7854 -93.6 5.500 0.5770 167.4 0.683 8.6 0.1581 -9.6 0.7886 -101.8 6.000 0.5715 156.2 0.635 1.0 0.1515 -9.4 0.7886 -109.9 ! ! SIEMENS AG Semiconductor Group, Munich