! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.5 V IC = 0.1 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 0.9947 -1.2 0.442 -179.5 0.0038 89.6 0.9992 -0.4 0.020 0.9938 -2.0 0.439 176.7 0.0079 89.8 0.9925 -0.8 0.050 0.9930 -5.7 0.441 172.6 0.0207 84.8 0.9985 -1.9 0.100 0.9956 -11.5 0.442 166.5 0.0414 82.6 0.9999 -3.8 0.150 0.9834 -17.4 0.443 158.3 0.0617 77.9 0.9960 -5.6 0.200 0.9860 -23.4 0.450 152.4 0.0814 74.6 0.9929 -7.4 0.250 0.9757 -29.2 0.448 146.1 0.1007 70.0 0.9884 -9.4 0.300 0.9664 -34.9 0.450 139.2 0.1188 66.9 0.9847 -11.1 0.400 0.9443 -46.1 0.453 126.8 0.1521 59.2 0.9713 -14.5 0.500 0.9173 -57.2 0.451 114.1 0.1809 52.1 0.9593 -17.8 0.600 0.9049 -68.0 0.454 103.2 0.2059 45.3 0.9458 -21.0 0.700 0.8823 -78.2 0.457 94.0 0.2251 38.8 0.9328 -24.1 0.800 0.8572 -88.4 0.452 84.8 0.2397 32.8 0.9181 -26.8 0.900 0.8338 -97.7 0.451 76.3 0.2496 27.2 0.9061 -29.6 1.000 0.8147 -107.3 0.446 68.6 0.2552 21.8 0.8960 -32.2 1.100 0.8020 -117.3 0.441 61.6 0.2572 16.6 0.8867 -35.0 1.200 0.7911 -126.1 0.431 54.7 0.2553 11.9 0.8760 -37.8 1.300 0.7796 -134.7 0.422 49.9 0.2512 7.7 0.8688 -40.2 1.400 0.7678 -143.0 0.413 44.5 0.2428 3.5 0.8639 -42.9 1.500 0.7680 -150.9 0.402 40.2 0.2319 0.1 0.8578 -45.5 1.600 0.7622 -159.7 0.375 35.5 0.2205 -3.4 0.8560 -48.3 1.700 0.7531 -167.3 0.369 32.3 0.2045 -5.7 0.8444 -51.1 1.800 0.7531 -174.1 0.355 29.6 0.1897 -7.5 0.8460 -53.7 1.900 0.7584 178.7 0.342 26.6 0.1705 -8.8 0.8437 -57.1 2.000 0.7597 171.6 0.324 24.1 0.1536 -9.1 0.8394 -60.3 2.200 0.7644 159.1 0.289 22.3 0.1146 -3.7 0.8358 -67.0 2.400 0.7756 146.3 0.267 23.7 0.0882 16.4 0.8230 -75.2 2.600 0.7813 135.2 0.252 27.8 0.0949 45.5 0.8159 -82.8 2.800 0.7890 125.4 0.250 33.9 0.1322 62.3 0.7989 -92.4 3.000 0.7919 116.4 0.269 38.6 0.1848 66.8 0.7908 -101.9 3.500 0.7895 98.1 0.344 42.1 0.3177 58.8 0.7412 -128.5 4.000 0.7697 84.6 0.424 38.0 0.4204 47.6 0.6687 -151.2 4.500 0.7511 75.8 0.508 27.9 0.5101 33.9 0.6780 -175.3 5.000 0.7320 69.2 0.556 18.6 0.5589 22.5 0.6636 164.5 5.500 0.7259 63.6 0.583 10.5 0.5911 12.8 0.6575 147.2 6.000 0.7099 58.7 0.605 2.9 0.6125 3.7 0.6570 132.3 ! ! SIEMENS AG Semiconductor Group, Munich