! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.75 V IC = 2 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 0.9319 -2.5 6.866 177.3 0.0037 91.7 0.9946 -1.1 0.020 0.9237 -5.1 6.898 176.4 0.0077 88.4 0.9897 -2.3 0.050 0.9178 -12.5 6.745 170.1 0.0189 81.9 0.9870 -5.7 0.100 0.8996 -24.5 6.559 161.9 0.0374 75.9 0.9697 -11.1 0.150 0.8635 -36.1 6.327 152.3 0.0542 69.3 0.9342 -16.2 0.200 0.8293 -46.6 6.026 144.9 0.0679 64.1 0.8974 -20.3 0.250 0.7892 -57.3 5.701 137.2 0.0802 58.9 0.8527 -24.2 0.300 0.7385 -66.7 5.342 130.7 0.0897 55.3 0.8128 -27.3 0.400 0.6702 -83.6 4.684 119.9 0.1045 48.4 0.7333 -31.9 0.500 0.6032 -98.3 4.072 110.2 0.1146 43.8 0.6713 -35.0 0.600 0.5618 -111.6 3.639 102.4 0.1219 40.6 0.6233 -37.3 0.700 0.5221 -123.0 3.265 95.7 0.1269 38.8 0.5829 -39.0 0.800 0.4939 -133.5 2.934 89.7 0.1311 37.5 0.5507 -40.3 0.900 0.4752 -142.5 2.663 84.3 0.1345 37.2 0.5277 -41.4 1.000 0.4600 -151.8 2.450 79.4 0.1370 37.0 0.5089 -42.7 1.100 0.4554 -160.5 2.278 74.9 0.1406 37.4 0.4922 -44.1 1.200 0.4506 -168.8 2.122 70.6 0.1433 38.0 0.4785 -45.7 1.300 0.4462 -175.3 1.981 66.8 0.1470 38.9 0.4659 -46.9 1.400 0.4488 178.3 1.858 63.1 0.1502 39.8 0.4566 -48.6 1.500 0.4476 172.4 1.774 59.8 0.1547 41.3 0.4453 -50.1 1.600 0.4547 166.3 1.666 55.9 0.1602 42.4 0.4362 -51.6 1.700 0.4560 160.8 1.589 52.8 0.1659 43.7 0.4249 -53.5 1.800 0.4636 155.5 1.524 49.9 0.1728 44.5 0.4196 -55.1 1.900 0.4689 150.3 1.462 46.7 0.1797 45.6 0.4138 -57.7 2.000 0.4755 146.2 1.398 43.7 0.1877 46.2 0.4053 -59.8 2.200 0.4921 137.5 1.293 38.1 0.2049 47.6 0.3920 -64.6 2.400 0.5068 129.8 1.214 32.9 0.2245 48.3 0.3758 -70.6 2.600 0.5290 122.3 1.135 28.2 0.2455 48.2 0.3605 -76.3 2.800 0.5474 116.4 1.075 23.9 0.2677 47.6 0.3461 -84.0 3.000 0.5678 110.5 1.017 19.8 0.2922 46.6 0.3326 -91.5 3.500 0.6138 98.5 0.898 10.6 0.3561 42.1 0.3097 -115.8 4.000 0.6563 89.0 0.808 3.5 0.4172 35.3 0.3058 -145.3 4.500 0.6800 81.1 0.735 -2.6 0.4676 27.4 0.3256 -173.0 5.000 0.7021 72.7 0.662 -5.0 0.4905 22.0 0.3155 172.4 5.500 0.7023 68.2 0.657 -9.0 0.5488 14.0 0.4175 151.3 6.000 0.7078 63.3 0.639 -12.6 0.5793 6.6 0.4670 135.3 ! ! SIEMENS AG Semiconductor Group, Munich