! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 5 V IC = 15 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 0.7210 -6.4 32.939 173.7 0.0022 92.5 0.9789 -2.8 0.020 0.7044 -13.1 32.442 169.6 0.0048 80.9 0.9698 -5.9 0.050 0.6642 -30.5 30.010 155.5 0.0113 75.6 0.9193 -13.8 0.100 0.5633 -55.7 25.056 137.9 0.0200 68.6 0.7990 -22.7 0.150 0.4632 -74.9 20.315 124.4 0.0263 64.4 0.6875 -27.0 0.200 0.3998 -89.9 16.842 116.1 0.0310 63.6 0.6137 -28.1 0.250 0.3532 -102.5 14.155 109.4 0.0357 63.3 0.5571 -28.3 0.300 0.3141 -112.3 12.128 104.7 0.0399 64.8 0.5220 -27.9 0.400 0.2750 -129.5 9.456 97.7 0.0484 65.5 0.4742 -26.5 0.500 0.2543 -143.6 7.667 91.8 0.0576 67.0 0.4479 -25.4 0.600 0.2436 -154.4 6.486 87.3 0.0669 67.9 0.4335 -25.0 0.700 0.2391 -164.7 5.627 83.3 0.0764 68.4 0.4213 -25.0 0.800 0.2316 -173.6 4.939 79.7 0.0861 68.4 0.4126 -25.1 0.900 0.2278 179.5 4.412 76.4 0.0958 68.1 0.4070 -25.3 1.000 0.2305 172.3 4.003 73.4 0.1052 68.0 0.4027 -26.2 1.100 0.2397 165.5 3.675 70.5 0.1149 67.5 0.3966 -27.3 1.200 0.2459 160.6 3.393 67.7 0.1248 67.3 0.3911 -28.2 1.300 0.2481 156.0 3.136 65.1 0.1348 66.5 0.3878 -29.3 1.400 0.2550 151.4 2.927 62.7 0.1439 66.0 0.3841 -30.7 1.500 0.2580 147.7 2.765 60.1 0.1537 65.3 0.3795 -32.0 1.600 0.2684 143.1 2.596 57.2 0.1637 64.2 0.3738 -33.4 1.700 0.2735 138.9 2.460 54.8 0.1732 63.6 0.3681 -34.6 1.800 0.2882 135.3 2.351 52.7 0.1830 62.7 0.3644 -36.2 1.900 0.2945 133.0 2.245 50.2 0.1929 61.9 0.3595 -38.1 2.000 0.3019 130.1 2.140 47.9 0.2028 60.9 0.3516 -39.8 2.200 0.3210 124.4 1.970 43.4 0.2232 58.9 0.3407 -43.2 2.400 0.3390 118.7 1.842 38.8 0.2430 56.9 0.3232 -47.2 2.600 0.3651 113.2 1.719 34.7 0.2623 54.7 0.3089 -51.1 2.800 0.3844 109.8 1.625 30.7 0.2817 52.5 0.2883 -56.0 3.000 0.4080 106.2 1.534 26.6 0.3014 50.3 0.2723 -61.0 3.500 0.4685 97.9 1.357 17.1 0.3504 44.5 0.2209 -78.2 4.000 0.5309 90.9 1.222 8.4 0.3958 37.9 0.1710 -103.4 4.500 0.5758 85.3 1.107 0.0 0.4352 31.1 0.1450 -136.2 5.000 0.6189 77.0 0.976 -5.3 0.4554 26.6 0.1401 -150.2 5.500 0.6422 73.1 0.933 -11.6 0.5110 19.9 0.2111 173.2 6.000 0.6640 67.9 0.867 -17.5 0.5461 13.3 0.2619 153.0 ! ! SIEMENS AG Semiconductor Group, Munich