! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1 V IC = 10 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 0.7386 -7.5 26.055 173.9 0.0042 86.2 0.9698 -4.2 0.020 0.7220 -15.2 25.670 169.4 0.0085 83.5 0.9596 -8.7 0.050 0.6829 -36.1 23.606 154.6 0.0200 72.9 0.8959 -20.4 0.100 0.6018 -66.5 19.575 136.4 0.0350 63.6 0.7461 -35.0 0.150 0.5151 -89.2 15.722 122.8 0.0438 57.0 0.6095 -43.8 0.200 0.4689 -106.3 13.001 114.1 0.0501 55.3 0.5117 -48.2 0.250 0.4361 -119.5 10.884 107.3 0.0565 54.4 0.4345 -51.1 0.300 0.4122 -129.9 9.333 102.5 0.0617 55.4 0.3852 -52.6 0.400 0.3909 -146.2 7.250 95.1 0.0726 56.3 0.3134 -53.4 0.500 0.3785 -158.2 5.872 89.1 0.0835 58.0 0.2702 -53.1 0.600 0.3784 -167.6 4.968 84.2 0.0956 58.8 0.2439 -53.1 0.700 0.3769 -174.9 4.309 79.8 0.1069 59.5 0.2240 -53.3 0.800 0.3783 178.5 3.791 75.9 0.1198 59.5 0.2073 -53.4 0.900 0.3744 172.6 3.391 72.3 0.1317 59.4 0.1954 -53.3 1.000 0.3808 167.0 3.081 69.0 0.1436 59.4 0.1873 -54.4 1.100 0.3876 161.7 2.834 65.6 0.1561 58.7 0.1780 -56.3 1.200 0.3912 157.2 2.620 62.5 0.1686 58.2 0.1688 -57.6 1.300 0.3947 153.2 2.427 59.6 0.1810 57.3 0.1619 -59.1 1.400 0.4027 148.9 2.273 56.9 0.1929 56.5 0.1562 -61.5 1.500 0.4065 145.7 2.154 54.1 0.2054 55.7 0.1501 -63.8 1.600 0.4137 141.9 2.018 50.9 0.2171 54.6 0.1423 -66.3 1.700 0.4204 138.0 1.919 48.3 0.2286 53.6 0.1342 -69.0 1.800 0.4314 135.1 1.837 46.0 0.2406 52.4 0.1300 -72.1 1.900 0.4388 132.0 1.758 43.1 0.2525 51.3 0.1246 -77.0 2.000 0.4438 128.9 1.676 40.6 0.2641 50.0 0.1167 -82.0 2.200 0.4599 123.5 1.551 35.7 0.2873 47.6 0.1048 -90.6 2.400 0.4783 117.9 1.452 30.9 0.3093 44.9 0.0918 -106.6 2.600 0.4989 112.6 1.359 26.5 0.3298 42.2 0.0854 -121.0 2.800 0.5172 108.4 1.284 22.4 0.3498 39.5 0.0851 -143.4 3.000 0.5391 104.2 1.214 18.3 0.3689 36.8 0.0913 -160.5 3.500 0.5888 94.9 1.073 9.0 0.4136 30.0 0.1394 164.6 4.000 0.6347 87.2 0.966 1.2 0.4490 22.9 0.2055 143.2 4.500 0.6653 80.6 0.873 -6.1 0.4730 16.1 0.2624 128.4 5.000 0.6855 73.0 0.791 -9.1 0.4865 13.0 0.2627 125.5 5.500 0.6994 68.9 0.759 -14.8 0.5250 6.0 0.3601 117.0 6.000 0.7119 64.2 0.721 -19.6 0.5463 0.2 0.4108 108.9 ! ! SIEMENS AG Semiconductor Group, Munich