! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 0.5 V IC = 0.4 mA ! Common Emitter S-Parameters: October 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9790 -1.7 1.561 -179.8 0.0063 90.8 0.9992 -0.7 0.020 0.9810 -3.2 1.537 176.9 0.0124 89.1 0.9900 -1.4 0.050 0.9834 -8.5 1.523 172.0 0.0310 84.7 0.9948 -3.7 0.100 0.9773 -16.3 1.527 165.8 0.0619 79.3 0.9927 -7.3 0.150 0.9564 -24.7 1.491 157.3 0.0915 72.9 0.9811 -10.9 0.200 0.9534 -32.7 1.486 151.1 0.1192 68.4 0.9686 -14.2 0.250 0.9294 -41.1 1.462 143.8 0.1443 62.7 0.9474 -17.7 0.300 0.9065 -48.2 1.415 137.2 0.1675 58.3 0.9316 -20.8 0.400 0.8636 -62.5 1.336 125.3 0.2062 49.1 0.8889 -26.3 0.500 0.8167 -76.0 1.253 113.3 0.2355 41.0 0.8481 -31.0 0.600 0.7826 -88.7 1.188 103.2 0.2575 33.9 0.8112 -35.2 0.700 0.7461 -100.1 1.119 94.1 0.2711 27.7 0.7772 -39.1 0.800 0.7223 -110.9 1.049 85.6 0.2792 22.2 0.7451 -42.3 0.900 0.6941 -120.1 0.989 78.0 0.2830 17.3 0.7200 -45.3 1.000 0.6738 -129.8 0.940 71.1 0.2821 12.9 0.7004 -48.2 1.100 0.6647 -139.3 0.902 64.7 0.2788 8.9 0.6829 -51.3 1.200 0.6561 -147.9 0.860 58.9 0.2731 5.0 0.6673 -54.7 1.300 0.6475 -155.5 0.821 53.9 0.2655 2.4 0.6528 -57.1 1.400 0.6450 -163.0 0.783 48.8 0.2540 -0.4 0.6438 -60.3 1.500 0.6469 -169.8 0.761 44.6 0.2411 -1.5 0.6300 -63.0 1.600 0.6468 -177.0 0.713 40.0 0.2295 -3.2 0.6238 -66.1 1.700 0.6468 176.2 0.695 36.4 0.2144 -3.0 0.6051 -69.4 1.800 0.6519 170.4 0.670 33.3 0.2042 -2.6 0.6044 -71.9 1.900 0.6566 164.7 0.647 29.9 0.1889 -1.4 0.5991 -76.1 2.000 0.6662 158.8 0.621 27.1 0.1799 0.5 0.5926 -79.6 2.200 0.6764 148.5 0.574 21.6 0.1601 8.8 0.5818 -87.5 2.400 0.6943 137.9 0.544 18.4 0.1556 20.3 0.5703 -97.6 2.600 0.7055 128.8 0.507 16.1 0.1706 31.6 0.5626 -106.2 2.800 0.7227 120.7 0.483 14.4 0.1975 39.1 0.5563 -117.4 3.000 0.7329 113.3 0.465 13.4 0.2365 42.2 0.5548 -128.5 3.500 0.7532 97.7 0.449 12.9 0.3366 38.6 0.5499 -157.2 4.000 0.7553 85.9 0.459 13.1 0.4130 31.7 0.5269 -179.6 4.500 0.7511 77.4 0.503 8.6 0.4859 21.2 0.5823 158.6 5.000 0.7477 70.6 0.532 3.6 0.5251 12.3 0.5986 141.9 5.500 0.7476 64.8 0.549 -1.1 0.5535 4.3 0.6176 127.8 6.000 0.7322 59.8 0.565 -7.0 0.5728 -3.3 0.6349 115.7 ! ! SIEMENS AG Semiconductor Group, Munich