! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2 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 0.8077 -4.8 20.107 175.4 0.0033 87.6 0.9864 -2.5 0.020 0.7944 -9.8 19.831 172.5 0.0066 87.4 0.9807 -5.2 0.050 0.7730 -24.2 18.966 161.3 0.0163 78.4 0.9477 -12.6 0.100 0.7067 -46.1 17.091 146.4 0.0303 68.7 0.8624 -22.7 0.150 0.6175 -64.0 14.746 133.3 0.0404 61.7 0.7592 -29.9 0.200 0.5504 -79.4 12.826 124.3 0.0478 58.3 0.6754 -34.0 0.250 0.4953 -92.6 11.117 116.5 0.0537 55.6 0.5996 -36.9 0.300 0.4532 -103.3 9.722 110.8 0.0588 55.3 0.5464 -38.4 0.400 0.3987 -120.6 7.741 102.3 0.0679 55.1 0.4680 -39.3 0.500 0.3644 -135.2 6.352 95.2 0.0766 55.7 0.4190 -39.2 0.600 0.3461 -147.5 5.421 89.7 0.0861 56.8 0.3879 -39.1 0.700 0.3396 -157.2 4.723 84.9 0.0949 57.6 0.3647 -39.1 0.800 0.3325 -165.6 4.157 80.7 0.1047 57.9 0.3471 -39.1 0.900 0.3249 -173.1 3.722 76.8 0.1143 58.4 0.3351 -39.1 1.000 0.3235 179.4 3.388 73.3 0.1237 58.6 0.3255 -39.8 1.100 0.3280 172.5 3.120 70.0 0.1340 58.7 0.3158 -40.9 1.200 0.3343 166.4 2.885 66.7 0.1444 58.5 0.3070 -41.8 1.300 0.3368 162.5 2.672 63.8 0.1545 58.1 0.2998 -42.7 1.400 0.3411 157.2 2.496 60.9 0.1646 57.8 0.2945 -44.3 1.500 0.3431 152.8 2.366 58.1 0.1750 57.5 0.2872 -45.8 1.600 0.3513 148.2 2.218 55.1 0.1855 56.9 0.2799 -47.3 1.700 0.3614 144.4 2.107 52.5 0.1960 56.2 0.2725 -48.8 1.800 0.3685 140.2 2.013 50.0 0.2063 55.4 0.2672 -50.6 1.900 0.3779 136.7 1.928 47.3 0.2171 54.7 0.2610 -53.2 2.000 0.3833 133.7 1.841 44.8 0.2274 53.8 0.2513 -55.4 2.200 0.4003 127.6 1.697 39.8 0.2492 52.0 0.2382 -59.7 2.400 0.4213 121.3 1.589 34.9 0.2703 50.0 0.2190 -65.8 2.600 0.4437 115.7 1.483 30.6 0.2908 47.8 0.2034 -71.5 2.800 0.4644 111.3 1.402 26.5 0.3112 45.6 0.1834 -80.1 3.000 0.4866 106.9 1.326 22.3 0.3314 43.3 0.1690 -88.5 3.500 0.5407 97.6 1.171 12.7 0.3810 37.1 0.1398 -121.6 4.000 0.5954 89.6 1.051 4.3 0.4239 30.4 0.1463 -162.9 4.500 0.6320 82.9 0.949 -3.4 0.4586 23.4 0.1837 166.1 5.000 0.6623 74.7 0.844 -7.8 0.4742 19.3 0.1889 156.7 5.500 0.6776 70.8 0.810 -13.2 0.5248 12.4 0.2953 140.1 6.000 0.6911 65.8 0.763 -18.3 0.5531 6.1 0.3535 127.5 ! ! SIEMENS AG Semiconductor Group, Munich