! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3.5 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 0.9718 -1.5 2.923 178.0 0.0029 95.0 0.9991 -0.5 0.020 0.9643 -3.1 2.912 177.7 0.0062 90.9 0.9942 -1.1 0.050 0.9609 -7.7 2.878 173.3 0.0156 85.5 0.9963 -2.7 0.100 0.9619 -15.8 2.867 168.1 0.0312 80.8 0.9921 -5.4 0.150 0.9470 -23.6 2.811 161.1 0.0460 75.2 0.9820 -8.0 0.200 0.9296 -31.0 2.786 155.9 0.0600 71.5 0.9725 -10.4 0.250 0.9147 -38.6 2.745 149.9 0.0733 66.8 0.9577 -13.0 0.300 0.8853 -45.7 2.656 144.3 0.0849 63.1 0.9416 -15.1 0.400 0.8448 -59.7 2.510 134.5 0.1045 55.4 0.9060 -19.0 0.500 0.7936 -72.8 2.332 124.4 0.1197 48.8 0.8690 -22.4 0.600 0.7501 -85.1 2.189 116.1 0.1313 43.1 0.8386 -25.3 0.700 0.7118 -96.1 2.044 108.4 0.1384 38.6 0.8090 -27.6 0.800 0.6721 -106.9 1.889 101.4 0.1432 34.6 0.7813 -29.7 0.900 0.6398 -116.6 1.767 94.7 0.1454 31.5 0.7599 -31.5 1.000 0.6164 -126.8 1.663 88.8 0.1453 29.0 0.7403 -33.2 1.100 0.5939 -136.8 1.572 83.2 0.1442 27.1 0.7236 -35.1 1.200 0.5802 -145.4 1.482 78.1 0.1422 25.8 0.7095 -37.0 1.300 0.5724 -153.2 1.401 73.7 0.1395 25.5 0.6975 -38.5 1.400 0.5617 -161.2 1.323 69.1 0.1355 25.5 0.6888 -40.3 1.500 0.5575 -168.6 1.269 65.2 0.1322 26.5 0.6780 -41.9 1.600 0.5569 -176.2 1.192 60.7 0.1296 27.8 0.6711 -43.6 1.700 0.5535 176.8 1.149 57.2 0.1268 30.5 0.6597 -45.5 1.800 0.5533 170.8 1.111 53.8 0.1264 33.2 0.6550 -47.2 1.900 0.5570 164.2 1.068 50.2 0.1262 37.0 0.6500 -49.5 2.000 0.5589 158.8 1.021 47.1 0.1279 40.1 0.6441 -51.6 2.200 0.5714 148.0 0.943 41.3 0.1354 47.8 0.6353 -56.2 2.400 0.5847 137.5 0.889 35.9 0.1513 54.4 0.6216 -61.5 2.600 0.6009 128.4 0.827 31.5 0.1731 58.4 0.6116 -66.7 2.800 0.6162 120.8 0.786 27.8 0.2002 60.9 0.5998 -73.3 3.000 0.6335 113.4 0.741 24.3 0.2310 61.8 0.5897 -79.8 3.500 0.6664 98.6 0.666 17.8 0.3197 58.0 0.5631 -99.8 4.000 0.6909 87.5 0.621 13.5 0.4082 49.3 0.5302 -124.1 4.500 0.6988 78.8 0.602 9.2 0.4816 38.8 0.5072 -149.7 5.000 0.7102 70.6 0.571 7.4 0.5142 30.9 0.4542 -166.3 5.500 0.6960 65.6 0.600 3.6 0.5825 21.2 0.5243 170.1 6.000 0.6931 61.2 0.610 -1.3 0.6157 12.3 0.5469 151.1 ! ! SIEMENS AG Semiconductor Group, Munich