! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 0.5 V IC = 0.8 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 0.9666 -1.9 2.906 177.7 0.0062 89.9 0.9964 -1.0 0.020 0.9580 -4.1 2.917 176.9 0.0124 86.2 0.9985 -2.1 0.050 0.9599 -10.4 2.883 171.2 0.0314 83.3 0.9921 -5.1 0.100 0.9490 -20.8 2.829 164.1 0.0621 77.2 0.9843 -10.0 0.150 0.9302 -30.7 2.779 155.2 0.0906 70.4 0.9599 -15.0 0.200 0.9090 -40.0 2.699 148.2 0.1164 64.7 0.9367 -19.2 0.250 0.8826 -49.6 2.605 140.7 0.1393 58.8 0.9039 -23.6 0.300 0.8433 -58.5 2.499 133.9 0.1590 54.2 0.8758 -27.1 0.400 0.7908 -74.5 2.284 122.2 0.1898 45.1 0.8076 -33.4 0.500 0.7357 -88.9 2.050 111.0 0.2106 37.6 0.7473 -38.3 0.600 0.6940 -102.4 1.888 101.8 0.2251 31.4 0.7001 -42.5 0.700 0.6593 -114.3 1.736 93.5 0.2328 26.5 0.6567 -45.9 0.800 0.6329 -124.5 1.590 86.2 0.2368 22.3 0.6187 -48.9 0.900 0.6076 -133.9 1.466 79.4 0.2379 19.0 0.5902 -51.5 1.000 0.5933 -143.3 1.371 73.5 0.2356 15.8 0.5668 -54.3 1.100 0.5849 -152.7 1.289 67.7 0.2330 13.5 0.5467 -57.0 1.200 0.5759 -160.3 1.215 62.3 0.2279 11.4 0.5310 -60.1 1.300 0.5773 -167.7 1.149 57.9 0.2232 10.5 0.5149 -62.3 1.400 0.5753 -174.2 1.091 53.4 0.2160 9.5 0.5044 -65.5 1.500 0.5767 179.3 1.050 49.4 0.2084 10.4 0.4880 -67.8 1.600 0.5783 173.1 0.990 44.9 0.2032 10.7 0.4794 -70.6 1.700 0.5851 166.9 0.953 41.6 0.1962 12.5 0.4627 -73.9 1.800 0.5913 161.5 0.918 38.4 0.1945 14.1 0.4572 -76.4 1.900 0.5949 156.2 0.885 34.8 0.1899 16.4 0.4511 -80.4 2.000 0.5984 151.5 0.846 31.6 0.1904 18.6 0.4449 -83.5 2.200 0.6176 142.1 0.790 26.2 0.1922 24.5 0.4327 -91.4 2.400 0.6308 133.2 0.742 21.3 0.2028 30.2 0.4239 -100.7 2.600 0.6492 125.1 0.698 17.6 0.2228 34.5 0.4138 -109.3 2.800 0.6664 118.1 0.663 14.3 0.2478 37.0 0.4127 -119.9 3.000 0.6820 111.4 0.634 11.6 0.2782 38.1 0.4095 -130.5 3.500 0.7137 97.6 0.574 6.8 0.3604 34.6 0.4256 -157.9 4.000 0.7352 87.2 0.545 3.9 0.4297 26.9 0.4587 174.9 4.500 0.7407 78.7 0.536 0.3 0.4760 18.2 0.4928 152.0 5.000 0.7402 71.2 0.526 -0.3 0.4982 13.7 0.4710 141.4 5.500 0.7372 66.4 0.549 -4.7 0.5424 5.2 0.5596 126.0 6.000 0.7340 61.6 0.556 -9.1 0.5627 -1.6 0.5924 114.1 ! ! SIEMENS AG Semiconductor Group, Munich