! SIEMENS Small Signal Semiconductors ! BFS481 ! Si NPN RF Bipolar Junction Transistor in SOT363 ! VCE = 2.5 V IC = 8 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 0.7621 -2.5 18.179 177.9 0.0012 87.9 0.9821 -0.8 0.020 0.7678 -5.1 18.045 175.9 0.0027 88.7 0.9820 -1.8 0.030 0.7628 -7.8 18.070 174.2 0.0039 86.6 0.9803 -2.7 0.050 0.7561 -12.7 18.020 170.2 0.0064 82.1 0.9751 -4.6 0.100 0.7246 -24.7 17.360 160.3 0.0121 79.9 0.9510 -8.7 0.150 0.6825 -35.9 16.372 151.1 0.0174 73.8 0.9136 -12.1 0.200 0.6365 -46.1 15.201 143.3 0.0219 69.9 0.8734 -14.7 0.250 0.5883 -55.2 14.052 136.4 0.0255 67.1 0.8354 -16.6 0.300 0.5378 -63.9 12.894 130.3 0.0287 65.0 0.7985 -18.0 0.400 0.4645 -77.9 10.976 120.8 0.0342 62.7 0.7398 -19.4 0.500 0.4078 -90.2 9.419 113.4 0.0391 61.8 0.6978 -20.0 0.600 0.3606 -100.6 8.180 107.4 0.0437 61.7 0.6662 -20.1 0.700 0.3263 -110.5 7.170 102.7 0.0474 62.5 0.6431 -20.1 0.800 0.3034 -118.3 6.463 98.4 0.0518 63.3 0.6252 -20.2 0.900 0.2836 -126.7 5.815 95.0 0.0560 64.2 0.6122 -20.4 1.000 0.2737 -134.1 5.306 91.7 0.0606 64.8 0.6007 -20.6 1.100 0.2614 -140.9 4.856 88.5 0.0648 65.0 0.5919 -20.9 1.200 0.2561 -147.7 4.491 85.7 0.0693 65.3 0.5840 -21.3 1.300 0.2516 -153.3 4.187 83.4 0.0735 66.1 0.5777 -21.8 1.400 0.2493 -159.2 3.902 80.7 0.0783 66.6 0.5717 -22.4 1.500 0.2483 -164.2 3.674 78.3 0.0829 67.0 0.5664 -23.0 1.600 0.2509 -168.6 3.459 76.0 0.0874 67.1 0.5617 -23.6 1.700 0.2520 -172.2 3.286 74.0 0.0919 67.3 0.5572 -24.4 1.800 0.2540 -177.0 3.111 71.6 0.0969 67.2 0.5532 -25.1 1.900 0.2572 178.9 2.958 69.4 0.1018 67.2 0.5487 -26.0 2.000 0.2597 175.3 2.831 67.6 0.1067 67.2 0.5466 -26.9 2.200 0.2656 169.0 2.600 63.5 0.1164 66.9 0.5385 -28.7 2.400 0.2732 163.4 2.416 59.9 0.1264 66.6 0.5326 -30.8 2.600 0.2818 157.7 2.250 56.1 0.1369 66.0 0.5262 -33.1 2.800 0.2897 153.1 2.103 52.3 0.1472 65.1 0.5205 -35.4 3.000 0.3004 148.7 1.987 48.7 0.1579 64.5 0.5136 -37.8 3.200 0.3120 144.4 1.886 45.4 0.1691 63.8 0.5088 -40.4 3.400 0.3242 141.0 1.788 41.9 0.1800 62.9 0.5026 -43.2 3.600 0.3347 137.4 1.712 38.6 0.1916 61.9 0.4963 -46.0 3.800 0.3454 134.1 1.628 35.4 0.2016 60.7 0.4874 -49.0 4.000 0.3551 131.7 1.565 32.4 0.2140 59.6 0.4824 -52.1 4.500 0.3837 126.3 1.426 24.3 0.2433 56.2 0.4678 -60.1 5.000 0.3958 120.2 1.300 16.6 0.2747 52.7 0.4659 -67.2 5.500 0.3940 116.4 1.226 8.1 0.3140 47.1 0.4729 -76.6 6.000 0.3878 110.4 1.151 -0.4 0.3507 40.5 0.4809 -85.2 ! ! SIEMENS AG Semiconductor Group, Munich