! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 12 V IC = 4 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 0.9100 -2.7 12.235 176.5 0.0018 86.9 0.9951 -0.9 0.020 0.9027 -5.5 12.141 175.3 0.0041 82.5 0.9973 -2.1 0.050 0.8893 -13.4 11.834 168.3 0.0106 80.7 0.9851 -5.0 0.100 0.8602 -26.2 11.455 158.8 0.0205 75.7 0.9612 -9.5 0.150 0.8059 -38.4 10.710 148.3 0.0292 69.8 0.9193 -13.5 0.200 0.7481 -49.2 10.038 140.3 0.0359 65.4 0.8792 -16.3 0.250 0.6968 -59.7 9.279 132.5 0.0420 61.7 0.8347 -18.8 0.300 0.6325 -68.6 8.474 126.3 0.0466 59.3 0.7992 -20.2 0.400 0.5425 -84.0 7.202 116.4 0.0540 55.6 0.7365 -22.1 0.500 0.4715 -97.8 6.146 107.5 0.0600 54.4 0.6917 -22.9 0.600 0.4197 -110.1 5.378 100.9 0.0654 53.8 0.6610 -23.6 0.700 0.3823 -120.5 4.748 95.2 0.0701 54.2 0.6379 -24.0 0.800 0.3509 -131.1 4.224 90.2 0.0757 54.7 0.6211 -24.4 0.900 0.3264 -139.6 3.810 85.6 0.0801 56.0 0.6092 -24.8 1.000 0.3133 -150.3 3.494 81.5 0.0854 56.9 0.5993 -25.4 1.100 0.3039 -159.7 3.219 77.8 0.0907 58.1 0.5905 -26.3 1.200 0.2972 -167.7 2.990 74.3 0.0962 58.9 0.5835 -27.1 1.300 0.2903 -175.3 2.771 71.1 0.1021 59.6 0.5777 -27.9 1.400 0.2954 178.0 2.592 68.0 0.1076 60.7 0.5743 -29.0 1.500 0.2940 171.6 2.450 65.1 0.1141 61.2 0.5697 -30.0 1.600 0.2982 165.4 2.302 61.8 0.1207 61.8 0.5647 -31.1 1.700 0.3037 159.1 2.187 59.0 0.1276 62.5 0.5595 -32.3 1.800 0.3121 153.1 2.091 56.5 0.1349 62.8 0.5573 -33.5 1.900 0.3203 148.3 2.003 53.7 0.1428 63.1 0.5540 -35.0 2.000 0.3247 143.6 1.910 51.1 0.1500 63.3 0.5486 -36.4 2.200 0.3437 135.7 1.754 46.2 0.1667 63.5 0.5428 -39.4 2.400 0.3602 127.7 1.641 41.3 0.1839 63.3 0.5305 -42.8 2.600 0.3878 120.7 1.529 36.8 0.2017 62.6 0.5210 -46.2 2.800 0.4060 115.5 1.447 32.7 0.2212 61.9 0.5076 -50.3 3.000 0.4294 110.2 1.365 28.5 0.2411 60.8 0.4985 -54.4 3.500 0.4867 99.5 1.205 18.9 0.2965 57.0 0.4634 -67.5 4.000 0.5457 91.5 1.085 10.3 0.3550 51.5 0.4200 -84.0 4.500 0.5867 84.3 0.984 2.1 0.4133 44.5 0.3799 -103.6 5.000 0.6286 76.3 0.864 -3.6 0.4507 38.8 0.3527 -117.3 5.500 0.6472 71.4 0.822 -8.5 0.5243 31.2 0.3730 -145.8 6.000 0.6675 66.2 0.770 -13.5 0.5753 23.2 0.3873 -168.8 ! ! SIEMENS AG Semiconductor Group, Munich