! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 1.75 V IC = 0.8 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 0.9723 -0.6 2.784 179.8 0.0013 83.2 0.9971 -0.3 0.020 0.9744 -1.5 2.831 179.0 0.0035 91.3 0.9999 -0.7 0.050 0.9723 -3.6 2.760 177.2 0.0067 85.9 0.9972 -1.6 0.100 0.9708 -6.9 2.806 174.3 0.0141 86.1 0.9966 -3.3 0.150 0.9727 -10.2 2.766 171.5 0.0214 83.7 0.9966 -5.0 0.200 0.9652 -13.9 2.759 168.3 0.0288 81.3 0.9935 -6.7 0.250 0.9607 -17.6 2.757 165.6 0.0354 79.4 0.9909 -8.3 0.300 0.9571 -20.7 2.740 162.3 0.0417 76.7 0.9853 -9.9 0.400 0.9429 -27.3 2.689 156.8 0.0552 72.1 0.9780 -13.0 0.500 0.9278 -34.4 2.673 150.8 0.0673 67.5 0.9656 -16.1 0.600 0.9123 -40.6 2.620 145.0 0.0791 63.4 0.9526 -19.0 0.700 0.8974 -46.9 2.531 140.5 0.0897 59.3 0.9389 -22.0 0.800 0.8743 -52.9 2.448 135.0 0.0994 55.6 0.9237 -24.6 0.900 0.8552 -58.8 2.390 130.5 0.1083 51.7 0.9084 -27.2 1.000 0.8374 -64.6 2.334 125.6 0.1158 48.3 0.8920 -29.8 1.100 0.8165 -70.1 2.257 121.2 0.1221 45.0 0.8771 -32.0 1.200 0.7997 -75.3 2.187 116.7 0.1288 41.7 0.8634 -34.5 1.300 0.7813 -81.0 2.121 112.7 0.1338 38.9 0.8477 -36.5 1.400 0.7696 -85.6 2.046 108.5 0.1377 36.0 0.8336 -38.7 1.500 0.7494 -90.1 1.984 104.7 0.1420 33.6 0.8215 -40.6 1.600 0.7356 -94.7 1.915 101.2 0.1455 31.5 0.8110 -42.4 1.700 0.7254 -99.4 1.865 97.5 0.1479 29.1 0.7977 -44.2 1.800 0.7077 -104.0 1.807 93.8 0.1506 27.3 0.7894 -45.8 1.900 0.6971 -107.4 1.756 90.7 0.1523 24.9 0.7799 -47.6 2.000 0.6821 -111.6 1.711 86.9 0.1547 23.4 0.7738 -49.2 2.200 0.6681 -118.3 1.600 80.9 0.1576 19.6 0.7617 -52.6 2.400 0.6452 -125.6 1.501 75.2 0.1574 16.9 0.7465 -55.6 2.600 0.6317 -131.2 1.422 69.7 0.1584 14.5 0.7381 -58.4 2.800 0.6182 -137.5 1.355 64.9 0.1586 12.5 0.7320 -61.2 3.000 0.6115 -143.1 1.281 59.8 0.1580 10.1 0.7275 -64.2 3.500 0.5838 -155.6 1.153 48.3 0.1579 6.3 0.7232 -71.0 4.000 0.5717 -167.5 1.049 37.7 0.1548 3.5 0.7220 -78.2 4.500 0.5582 -179.2 0.970 28.0 0.1518 1.7 0.7279 -85.6 5.000 0.5459 170.2 0.890 18.8 0.1494 0.6 0.7366 -93.3 5.500 0.5413 159.2 0.826 9.7 0.1474 1.0 0.7402 -101.4 6.000 0.5403 148.2 0.770 1.9 0.1476 2.1 0.7410 -109.4 ! ! SIEMENS AG Semiconductor Group, Munich