! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2.5 V IC = 1.2 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 0.9559 -1.9 4.252 177.8 0.0033 91.9 0.9985 -0.7 0.020 0.9488 -3.8 4.284 177.2 0.0068 87.0 0.9978 -1.5 0.050 0.9511 -9.4 4.216 172.2 0.0171 84.8 0.9932 -3.7 0.100 0.9440 -18.4 4.158 166.0 0.0342 79.7 0.9862 -7.3 0.150 0.9206 -27.9 4.086 158.0 0.0501 73.3 0.9679 -10.9 0.200 0.9006 -36.5 3.973 152.0 0.0646 68.6 0.9501 -13.9 0.250 0.8741 -45.2 3.860 145.2 0.0780 63.8 0.9245 -17.1 0.300 0.8363 -53.3 3.707 139.2 0.0891 59.7 0.9006 -19.6 0.400 0.7794 -68.8 3.407 128.8 0.1076 52.1 0.8457 -24.1 0.500 0.7179 -82.4 3.066 118.6 0.1207 46.2 0.7970 -27.5 0.600 0.6715 -95.5 2.827 110.3 0.1299 41.2 0.7569 -30.3 0.700 0.6306 -106.9 2.598 103.0 0.1355 37.3 0.7194 -32.5 0.800 0.5964 -117.5 2.372 96.3 0.1395 34.5 0.6882 -34.4 0.900 0.5657 -127.1 2.182 90.1 0.1415 32.6 0.6637 -35.9 1.000 0.5427 -136.9 2.027 84.6 0.1422 31.1 0.6444 -37.5 1.100 0.5316 -146.5 1.899 79.6 0.1426 30.4 0.6269 -39.2 1.200 0.5176 -155.0 1.783 74.7 0.1416 30.0 0.6128 -40.9 1.300 0.5111 -162.2 1.673 70.6 0.1415 30.4 0.5999 -42.2 1.400 0.5057 -169.8 1.578 66.4 0.1400 31.3 0.5904 -44.1 1.500 0.5022 -176.8 1.507 62.7 0.1400 33.0 0.5783 -45.6 1.600 0.5040 176.5 1.420 58.5 0.1404 34.6 0.5695 -47.2 1.700 0.5024 169.9 1.362 55.2 0.1423 37.0 0.5578 -49.1 1.800 0.5087 164.1 1.303 51.9 0.1450 38.8 0.5529 -50.8 1.900 0.5138 158.2 1.252 48.5 0.1483 41.4 0.5481 -53.2 2.000 0.5159 153.3 1.201 45.4 0.1531 43.2 0.5409 -55.2 2.200 0.5319 143.5 1.110 39.6 0.1661 47.9 0.5284 -59.8 2.400 0.5479 134.4 1.045 34.4 0.1831 51.2 0.5148 -65.4 2.600 0.5649 126.1 0.977 29.7 0.2049 53.1 0.5006 -70.7 2.800 0.5809 119.0 0.923 25.5 0.2291 54.2 0.4890 -77.6 3.000 0.5996 112.1 0.876 21.4 0.2574 54.2 0.4761 -84.4 3.500 0.6411 98.8 0.774 13.6 0.3344 50.3 0.4500 -105.8 4.000 0.6735 88.4 0.706 7.6 0.4104 42.8 0.4281 -131.8 4.500 0.6889 80.1 0.660 2.6 0.4742 33.5 0.4241 -158.5 5.000 0.7048 71.9 0.608 0.7 0.5031 26.8 0.3911 -174.7 5.500 0.7031 66.9 0.618 -2.8 0.5670 17.9 0.4762 162.2 6.000 0.7025 62.2 0.615 -6.7 0.5994 9.6 0.5126 144.1 ! ! SIEMENS AG Semiconductor Group, Munich