! SIEMENS Small Signal Semiconductors ! BFS481 ! Si NPN RF Bipolar Junction Transistor in SOT363 ! VCE = 3.5 V IC = 2.5 mA ! Common Emitter S-Parameters: October 1994 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9208 -1.2 7.765 179.2 0.0013 87.8 0.9952 -0.4 0.020 0.9239 -2.4 7.717 178.1 0.0030 88.4 0.9959 -1.0 0.030 0.9216 -3.6 7.751 177.5 0.0039 92.6 0.9936 -1.4 0.050 0.9215 -5.9 7.797 175.7 0.0067 87.9 0.9931 -2.3 0.100 0.9143 -11.4 7.742 170.6 0.0128 84.9 0.9892 -4.5 0.150 0.9011 -17.0 7.666 165.5 0.0193 80.2 0.9798 -6.7 0.200 0.8815 -22.4 7.515 160.9 0.0254 77.4 0.9672 -8.7 0.250 0.8623 -27.8 7.382 156.4 0.0309 75.2 0.9536 -10.7 0.300 0.8360 -32.9 7.193 151.6 0.0361 72.4 0.9381 -12.4 0.400 0.7859 -42.6 6.830 143.4 0.0458 67.8 0.9034 -15.5 0.500 0.7305 -51.5 6.384 135.9 0.0539 64.1 0.8680 -18.1 0.600 0.6778 -59.9 5.943 129.2 0.0612 60.7 0.8323 -20.1 0.700 0.6257 -67.7 5.489 123.2 0.0668 58.5 0.8021 -21.7 0.800 0.5801 -74.8 5.170 117.8 0.0717 56.7 0.7717 -23.0 0.900 0.5350 -81.6 4.809 112.9 0.0762 55.2 0.7472 -24.1 1.000 0.4998 -87.9 4.492 108.6 0.0802 54.2 0.7244 -25.0 1.100 0.4660 -94.1 4.196 104.2 0.0837 53.2 0.7051 -25.7 1.200 0.4364 -100.6 3.948 100.5 0.0869 52.5 0.6874 -26.5 1.300 0.4126 -105.9 3.735 97.3 0.0897 52.4 0.6719 -27.2 1.400 0.3887 -111.6 3.515 93.6 0.0930 52.3 0.6593 -27.9 1.500 0.3711 -117.4 3.345 90.6 0.0959 52.4 0.6462 -28.5 1.600 0.3542 -123.1 3.178 87.5 0.0988 52.3 0.6371 -29.1 1.700 0.3443 -128.3 3.041 85.0 0.1015 52.7 0.6265 -29.7 1.800 0.3288 -134.0 2.892 82.0 0.1049 52.9 0.6181 -30.4 1.900 0.3196 -138.9 2.765 79.3 0.1084 52.9 0.6109 -31.1 2.000 0.3104 -143.9 2.661 77.0 0.1115 53.2 0.6052 -32.0 2.200 0.3014 -153.2 2.457 72.0 0.1177 53.6 0.5920 -33.6 2.400 0.2952 -161.8 2.295 67.6 0.1245 54.1 0.5820 -35.3 2.600 0.2924 -170.2 2.145 63.2 0.1324 54.6 0.5721 -37.2 2.800 0.2920 -177.7 2.014 58.8 0.1397 54.6 0.5650 -39.3 3.000 0.2971 174.6 1.907 54.8 0.1477 54.8 0.5569 -41.4 3.200 0.3026 167.8 1.816 51.1 0.1566 55.0 0.5509 -43.8 3.400 0.3114 162.0 1.724 47.2 0.1655 55.0 0.5446 -46.3 3.600 0.3190 156.8 1.653 43.5 0.1746 54.7 0.5380 -48.9 3.800 0.3277 151.4 1.576 40.0 0.1831 54.5 0.5289 -51.7 4.000 0.3362 147.1 1.517 36.6 0.1935 54.0 0.5245 -54.6 4.500 0.3655 138.5 1.384 28.1 0.2192 52.5 0.5106 -62.3 5.000 0.3752 130.9 1.260 20.1 0.2476 50.4 0.5077 -69.2 5.500 0.3787 125.2 1.188 11.4 0.2854 46.1 0.5145 -78.3 6.000 0.3717 118.0 1.120 2.7 0.3224 40.6 0.5214 -86.6 ! ! SIEMENS AG Semiconductor Group, Munich