! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 6 V IC = 1.7 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 0.9484 -0.8 5.443 179.3 0.0012 95.5 0.9947 -0.4 0.020 0.9513 -1.8 5.600 178.4 0.0026 90.0 0.9999 -0.8 0.050 0.9464 -4.4 5.491 176.5 0.0063 85.0 0.9944 -2.0 0.100 0.9415 -9.0 5.448 173.0 0.0129 84.4 0.9926 -4.1 0.150 0.9441 -13.7 5.463 169.4 0.0188 81.5 0.9909 -6.2 0.200 0.9353 -18.0 5.380 165.7 0.0250 78.7 0.9839 -8.3 0.250 0.9273 -22.6 5.297 162.5 0.0311 76.7 0.9786 -10.3 0.300 0.9189 -27.1 5.309 158.6 0.0366 74.1 0.9699 -12.2 0.400 0.8930 -35.4 5.174 152.0 0.0476 68.8 0.9519 -15.9 0.500 0.8717 -44.1 4.977 145.3 0.0570 63.3 0.9297 -19.5 0.600 0.8445 -51.7 4.777 138.9 0.0661 59.3 0.9075 -22.6 0.700 0.8193 -59.4 4.601 133.9 0.0738 55.1 0.8827 -25.5 0.800 0.7889 -66.5 4.382 128.1 0.0801 51.2 0.8573 -28.3 0.900 0.7618 -73.1 4.209 123.3 0.0862 47.4 0.8341 -30.8 1.000 0.7375 -79.1 3.988 118.7 0.0911 44.6 0.8126 -33.2 1.100 0.7172 -85.4 3.795 114.4 0.0946 41.7 0.7933 -35.1 1.200 0.6938 -90.9 3.625 110.1 0.0989 39.2 0.7767 -37.2 1.300 0.6774 -96.7 3.454 106.3 0.1019 36.9 0.7584 -38.9 1.400 0.6599 -102.1 3.303 102.2 0.1043 34.8 0.7437 -40.8 1.500 0.6432 -106.9 3.179 98.6 0.1063 32.9 0.7289 -42.4 1.600 0.6285 -111.3 3.041 95.4 0.1083 31.6 0.7175 -43.9 1.700 0.6204 -116.2 2.931 92.0 0.1087 29.8 0.7021 -45.4 1.800 0.6032 -120.3 2.792 89.1 0.1102 28.6 0.6940 -46.8 1.900 0.5964 -123.5 2.681 86.4 0.1116 27.1 0.6871 -48.3 2.000 0.5829 -127.7 2.586 83.1 0.1133 26.4 0.6816 -49.5 2.200 0.5663 -134.8 2.414 77.7 0.1146 24.1 0.6684 -52.4 2.400 0.5556 -140.8 2.221 72.9 0.1158 22.7 0.6592 -55.0 2.600 0.5457 -146.9 2.102 67.9 0.1164 21.9 0.6510 -57.5 2.800 0.5356 -152.3 1.972 63.7 0.1179 20.8 0.6485 -60.0 3.000 0.5278 -157.8 1.864 59.1 0.1182 20.1 0.6440 -62.6 3.500 0.5117 -169.2 1.651 49.0 0.1215 19.2 0.6428 -68.8 4.000 0.5028 179.9 1.482 39.4 0.1248 18.5 0.6473 -75.6 4.500 0.4959 169.4 1.343 30.2 0.1294 18.4 0.6547 -82.6 5.000 0.4871 159.5 1.232 21.6 0.1346 18.7 0.6640 -90.0 5.500 0.4847 148.9 1.136 12.9 0.1417 18.9 0.6705 -97.7 6.000 0.4915 139.3 1.052 5.4 0.1505 18.6 0.6748 -105.4 ! ! SIEMENS AG Semiconductor Group, Munich