! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 1.5 V IC = 2.5 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 0.9146 -1.3 7.640 179.2 0.0013 88.5 0.9939 -0.5 0.020 0.9062 -2.6 7.747 178.1 0.0031 91.5 0.9999 -1.1 0.050 0.9112 -6.2 7.660 175.5 0.0070 85.9 0.9933 -2.8 0.100 0.9088 -12.6 7.642 170.8 0.0143 83.2 0.9873 -5.6 0.150 0.9030 -19.3 7.566 166.1 0.0211 79.2 0.9812 -8.3 0.200 0.8928 -25.1 7.455 161.4 0.0275 75.9 0.9698 -10.9 0.250 0.8770 -31.1 7.238 157.3 0.0344 72.3 0.9583 -13.5 0.300 0.8616 -36.8 7.134 152.6 0.0399 68.5 0.9415 -15.8 0.400 0.8266 -48.3 6.809 144.4 0.0505 63.2 0.9088 -20.2 0.500 0.7947 -59.1 6.437 136.6 0.0593 57.2 0.8715 -24.2 0.600 0.7563 -68.5 6.009 129.7 0.0666 52.8 0.8362 -27.3 0.700 0.7244 -77.2 5.615 124.3 0.0730 48.6 0.8024 -30.1 0.800 0.6967 -85.4 5.228 118.3 0.0776 45.2 0.7710 -32.6 0.900 0.6697 -93.2 4.937 113.4 0.0817 41.9 0.7425 -34.9 1.000 0.6431 -100.0 4.619 108.7 0.0850 39.3 0.7170 -36.8 1.100 0.6301 -106.2 4.331 104.6 0.0872 36.9 0.6960 -38.5 1.200 0.6100 -112.1 4.071 100.4 0.0901 35.0 0.6792 -40.2 1.300 0.5961 -118.0 3.833 96.9 0.0927 33.5 0.6633 -41.6 1.400 0.5884 -123.1 3.621 93.1 0.0937 32.1 0.6500 -43.1 1.500 0.5764 -127.8 3.438 89.9 0.0953 30.8 0.6370 -44.5 1.600 0.5690 -131.9 3.262 87.0 0.0965 30.2 0.6289 -45.7 1.700 0.5610 -136.7 3.123 83.7 0.0972 29.4 0.6165 -47.0 1.800 0.5502 -140.8 2.967 81.1 0.0985 28.6 0.6104 -48.3 1.900 0.5456 -143.9 2.835 78.5 0.0991 27.8 0.6038 -49.6 2.000 0.5411 -147.4 2.718 75.6 0.1009 27.4 0.6000 -50.9 2.200 0.5325 -153.8 2.514 70.6 0.1024 26.4 0.5931 -53.5 2.400 0.5275 -159.1 2.307 66.1 0.1041 25.9 0.5872 -56.1 2.600 0.5213 -164.1 2.165 61.5 0.1058 25.7 0.5838 -58.5 2.800 0.5159 -169.0 2.026 57.6 0.1081 25.8 0.5830 -61.1 3.000 0.5145 -173.8 1.906 53.3 0.1100 25.6 0.5829 -63.7 3.500 0.5043 175.6 1.676 43.7 0.1163 25.9 0.5863 -70.1 4.000 0.5024 166.7 1.498 34.6 0.1236 25.5 0.5950 -77.2 4.500 0.4999 156.6 1.358 25.8 0.1320 25.6 0.6047 -84.5 5.000 0.4936 147.2 1.241 17.4 0.1414 25.4 0.6166 -92.1 5.500 0.4946 138.4 1.137 8.9 0.1522 24.5 0.6253 -100.0 6.000 0.5006 129.5 1.052 1.4 0.1644 23.2 0.6312 -107.9 ! ! SIEMENS AG Semiconductor Group, Munich