! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 8 V IC = 7 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 0.8444 -3.8 19.381 175.6 0.0019 93.0 0.9902 -1.4 0.020 0.8345 -7.8 19.340 173.4 0.0046 88.6 0.9852 -3.4 0.050 0.8142 -18.8 18.544 163.9 0.0114 79.4 0.9678 -8.0 0.100 0.7522 -36.2 17.083 151.0 0.0210 73.8 0.9127 -14.5 0.150 0.6689 -50.9 15.291 138.4 0.0284 66.3 0.8407 -19.4 0.200 0.5994 -63.9 13.575 129.8 0.0345 63.1 0.7790 -22.1 0.250 0.5333 -75.2 12.019 121.9 0.0395 60.5 0.7217 -24.0 0.300 0.4748 -84.6 10.647 116.0 0.0434 59.6 0.6782 -24.9 0.400 0.3970 -100.7 8.621 107.1 0.0507 58.8 0.6148 -25.3 0.500 0.3427 -115.4 7.135 99.7 0.0577 59.2 0.5760 -25.2 0.600 0.3102 -127.5 6.127 94.1 0.0646 60.2 0.5514 -25.2 0.700 0.2843 -138.4 5.355 89.1 0.0715 61.2 0.5324 -25.2 0.800 0.2689 -148.5 4.729 84.9 0.0790 61.8 0.5188 -25.4 0.900 0.2528 -156.8 4.233 81.1 0.0862 62.5 0.5103 -25.6 1.000 0.2509 -166.7 3.852 77.7 0.0932 63.2 0.5031 -26.2 1.100 0.2483 -175.3 3.543 74.3 0.1011 63.6 0.4962 -27.1 1.200 0.2511 176.6 3.276 71.1 0.1092 63.9 0.4904 -27.9 1.300 0.2517 171.3 3.032 68.3 0.1171 63.8 0.4859 -28.8 1.400 0.2500 165.2 2.833 65.5 0.1248 63.9 0.4822 -30.0 1.500 0.2591 160.0 2.677 62.9 0.1328 63.8 0.4771 -31.1 1.600 0.2664 153.7 2.515 59.9 0.1414 63.6 0.4719 -32.2 1.700 0.2714 149.1 2.383 57.3 0.1498 63.5 0.4664 -33.4 1.800 0.2827 144.2 2.274 55.0 0.1582 63.1 0.4635 -34.7 1.900 0.2900 140.6 2.177 52.4 0.1673 62.8 0.4600 -36.5 2.000 0.2995 136.2 2.077 49.9 0.1760 62.2 0.4531 -38.0 2.200 0.3146 129.7 1.910 45.4 0.1945 61.3 0.4442 -41.0 2.400 0.3338 123.1 1.785 40.7 0.2127 60.0 0.4298 -44.7 2.600 0.3615 116.7 1.668 36.3 0.2317 58.3 0.4170 -48.2 2.800 0.3773 112.6 1.575 32.3 0.2508 56.9 0.4004 -52.6 3.000 0.4031 108.0 1.489 28.2 0.2705 55.2 0.3869 -56.9 3.500 0.4636 99.0 1.318 18.7 0.3223 50.3 0.3425 -71.1 4.000 0.5243 91.9 1.190 9.7 0.3733 44.3 0.2926 -89.6 4.500 0.5720 85.4 1.078 1.3 0.4212 37.6 0.2533 -112.2 5.000 0.6172 77.1 0.947 -4.2 0.4495 32.7 0.2374 -125.7 5.500 0.6353 73.2 0.905 -10.3 0.5139 25.7 0.2712 -159.4 6.000 0.6595 68.0 0.842 -16.1 0.5570 18.5 0.3034 176.9 ! ! SIEMENS AG Semiconductor Group, Munich