! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 1.5 V IC = 1 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 0.9646 -0.7 3.385 179.8 0.0012 89.2 0.9962 -0.3 0.020 0.9644 -1.7 3.497 178.7 0.0031 88.4 0.9999 -0.7 0.050 0.9658 -3.7 3.407 177.0 0.0074 88.3 0.9969 -1.8 0.100 0.9680 -7.8 3.412 173.8 0.0147 85.2 0.9954 -3.7 0.150 0.9601 -11.8 3.423 170.7 0.0216 82.5 0.9957 -5.5 0.200 0.9572 -15.4 3.368 167.4 0.0285 80.3 0.9913 -7.3 0.250 0.9525 -19.4 3.347 164.5 0.0358 78.0 0.9886 -9.1 0.300 0.9417 -23.2 3.374 160.9 0.0425 75.3 0.9804 -10.8 0.400 0.9290 -30.5 3.272 154.9 0.0561 70.8 0.9692 -14.3 0.500 0.9139 -37.9 3.209 148.7 0.0680 65.8 0.9541 -17.6 0.600 0.8920 -44.9 3.142 142.5 0.0791 61.7 0.9373 -20.7 0.700 0.8684 -51.7 3.041 137.8 0.0891 57.0 0.9198 -23.7 0.800 0.8461 -58.3 2.934 132.0 0.0980 53.1 0.8998 -26.5 0.900 0.8264 -64.2 2.827 127.5 0.1067 49.2 0.8831 -29.1 1.000 0.8029 -70.2 2.720 122.6 0.1134 46.1 0.8647 -31.6 1.100 0.7851 -76.1 2.618 118.1 0.1191 42.7 0.8468 -33.8 1.200 0.7661 -81.7 2.527 113.6 0.1250 39.7 0.8323 -36.2 1.300 0.7453 -87.2 2.438 109.6 0.1296 36.9 0.8149 -38.2 1.400 0.7322 -92.6 2.350 105.4 0.1323 34.2 0.7996 -40.3 1.500 0.7131 -97.3 2.273 101.6 0.1356 31.9 0.7853 -42.1 1.600 0.6994 -101.8 2.188 98.1 0.1382 30.1 0.7740 -43.9 1.700 0.6912 -106.2 2.112 94.6 0.1402 27.9 0.7595 -45.5 1.800 0.6727 -110.6 2.029 91.2 0.1430 26.1 0.7529 -47.1 1.900 0.6640 -114.1 1.956 88.2 0.1442 23.9 0.7439 -48.8 2.000 0.6474 -118.5 1.903 84.4 0.1464 22.6 0.7376 -50.3 2.200 0.6311 -125.5 1.782 78.6 0.1475 19.4 0.7237 -53.5 2.400 0.6165 -132.4 1.659 73.1 0.1484 17.0 0.7115 -56.4 2.600 0.6008 -138.0 1.574 67.8 0.1478 15.1 0.7016 -59.2 2.800 0.5923 -144.0 1.490 63.2 0.1492 13.3 0.6992 -61.9 3.000 0.5828 -149.5 1.408 58.2 0.1476 11.6 0.6926 -64.8 3.500 0.5644 -161.8 1.261 47.2 0.1482 8.9 0.6899 -71.5 4.000 0.5491 -173.4 1.144 36.8 0.1472 6.7 0.6912 -78.6 4.500 0.5407 175.3 1.046 27.4 0.1470 5.4 0.6990 -86.0 5.000 0.5331 165.0 0.959 18.4 0.1463 5.1 0.7076 -93.7 5.500 0.5277 154.1 0.890 9.2 0.1470 5.7 0.7117 -101.8 6.000 0.5269 143.9 0.829 1.7 0.1502 6.4 0.7151 -109.7 ! ! SIEMENS AG Semiconductor Group, Munich