! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2.5 V IC = 0.5 mA ! Common Emitter S-Parameters: August 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9826 -1.5 1.859 178.1 0.0032 94.6 0.9989 -0.5 0.020 0.9766 -2.9 1.871 177.8 0.0067 87.7 0.9999 -1.0 0.050 0.9754 -7.1 1.852 173.8 0.0171 84.9 0.9977 -2.4 0.100 0.9764 -14.3 1.831 168.8 0.0349 81.3 0.9972 -4.8 0.150 0.9655 -21.4 1.823 162.2 0.0520 76.4 0.9873 -7.3 0.200 0.9547 -28.0 1.803 157.2 0.0677 72.7 0.9809 -9.4 0.250 0.9442 -35.1 1.782 151.5 0.0828 68.0 0.9709 -11.8 0.300 0.9192 -41.9 1.750 145.9 0.0969 64.2 0.9595 -13.8 0.400 0.8877 -55.0 1.679 136.3 0.1216 56.4 0.9310 -17.8 0.500 0.8421 -67.5 1.576 125.8 0.1411 49.3 0.9031 -21.2 0.600 0.8128 -79.5 1.503 117.3 0.1564 43.1 0.8780 -24.5 0.700 0.7757 -90.5 1.431 109.0 0.1670 37.6 0.8515 -27.1 0.800 0.7393 -101.3 1.344 101.7 0.1739 32.7 0.8265 -29.6 0.900 0.7135 -111.2 1.269 94.5 0.1767 28.6 0.8063 -31.8 1.000 0.6894 -121.3 1.206 88.0 0.1772 24.7 0.7879 -34.0 1.100 0.6654 -131.0 1.148 82.1 0.1763 21.6 0.7719 -36.2 1.200 0.6525 -139.7 1.093 76.4 0.1728 18.8 0.7588 -38.5 1.300 0.6424 -148.2 1.039 71.7 0.1687 17.1 0.7469 -40.3 1.400 0.6347 -155.8 0.988 66.8 0.1616 15.6 0.7378 -42.5 1.500 0.6275 -163.8 0.959 62.6 0.1546 15.3 0.7270 -44.4 1.600 0.6249 -171.4 0.902 58.0 0.1477 15.3 0.7206 -46.5 1.700 0.6178 -178.7 0.877 54.4 0.1398 17.3 0.7064 -48.7 1.800 0.6224 174.2 0.845 50.8 0.1345 19.2 0.7026 -50.7 1.900 0.6241 168.1 0.815 47.2 0.1277 22.6 0.6983 -53.4 2.000 0.6233 162.2 0.779 43.8 0.1247 26.3 0.6934 -55.7 2.200 0.6332 150.7 0.723 38.5 0.1230 37.5 0.6832 -61.0 2.400 0.6462 140.0 0.678 33.6 0.1338 48.5 0.6705 -67.3 2.600 0.6586 130.2 0.639 30.0 0.1559 56.2 0.6592 -73.3 2.800 0.6712 121.9 0.604 27.1 0.1860 60.8 0.6493 -80.7 3.000 0.6853 114.1 0.577 24.8 0.2230 62.6 0.6381 -88.2 3.500 0.7104 98.3 0.536 21.4 0.3263 58.1 0.6118 -110.3 4.000 0.7201 86.6 0.532 18.6 0.4228 47.9 0.5799 -136.0 4.500 0.7167 77.6 0.549 14.6 0.4958 36.3 0.5559 -161.8 5.000 0.7196 69.9 0.542 12.0 0.5231 28.0 0.4891 -178.2 5.500 0.7063 65.2 0.581 6.6 0.5872 18.1 0.5654 160.0 6.000 0.7010 60.9 0.601 1.2 0.6157 9.4 0.5845 142.6 ! ! SIEMENS AG Semiconductor Group, Munich