! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 V IC = 10 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 0.8224 -4.4 24.396 175.0 0.0017 94.2 0.9861 -1.9 0.020 0.8115 -9.0 24.026 172.1 0.0038 83.5 0.9798 -3.8 0.050 0.7863 -21.6 22.989 161.2 0.0101 79.6 0.9555 -9.0 0.100 0.7058 -41.1 20.561 146.5 0.0190 72.0 0.8878 -15.9 0.150 0.6013 -56.8 17.752 133.4 0.0256 64.8 0.8041 -20.1 0.200 0.5311 -70.5 15.382 124.7 0.0303 62.8 0.7379 -22.1 0.250 0.4651 -81.9 13.304 117.2 0.0344 60.9 0.6825 -23.1 0.300 0.4111 -91.1 11.635 111.8 0.0384 61.5 0.6451 -23.4 0.400 0.3368 -107.1 9.274 103.5 0.0452 61.6 0.5918 -23.0 0.500 0.2908 -121.4 7.600 96.8 0.0521 63.2 0.5607 -22.4 0.600 0.2658 -133.1 6.476 91.7 0.0598 64.3 0.5430 -22.3 0.700 0.2442 -144.9 5.636 87.2 0.0670 65.5 0.5294 -22.4 0.800 0.2337 -154.0 4.958 83.4 0.0747 65.8 0.5187 -22.6 0.900 0.2207 -163.6 4.442 79.7 0.0826 66.3 0.5124 -22.8 1.000 0.2197 -172.8 4.037 76.5 0.0898 66.7 0.5076 -23.6 1.100 0.2206 179.2 3.706 73.4 0.0976 67.1 0.5011 -24.4 1.200 0.2255 171.6 3.423 70.5 0.1059 66.9 0.4968 -25.4 1.300 0.2227 166.5 3.161 67.9 0.1139 66.6 0.4943 -26.3 1.400 0.2327 160.8 2.954 65.3 0.1219 66.8 0.4913 -27.5 1.500 0.2323 155.2 2.790 62.7 0.1304 66.4 0.4867 -28.7 1.600 0.2404 150.6 2.622 59.8 0.1386 66.0 0.4825 -29.8 1.700 0.2477 145.8 2.488 57.3 0.1470 65.8 0.4777 -31.0 1.800 0.2598 140.4 2.375 55.1 0.1557 65.2 0.4747 -32.4 1.900 0.2697 136.8 2.268 52.7 0.1647 64.8 0.4712 -34.1 2.000 0.2756 134.2 2.162 50.2 0.1728 64.1 0.4654 -35.6 2.200 0.2952 127.0 1.989 45.7 0.1913 62.9 0.4577 -38.5 2.400 0.3129 120.9 1.856 41.2 0.2092 61.6 0.4435 -42.0 2.600 0.3406 115.3 1.735 37.1 0.2273 59.8 0.4309 -45.4 2.800 0.3613 111.2 1.639 33.2 0.2462 58.3 0.4158 -49.5 3.000 0.3824 106.9 1.547 29.1 0.2650 56.7 0.4027 -53.4 3.500 0.4447 99.0 1.371 19.7 0.3154 52.0 0.3591 -66.6 4.000 0.5066 92.0 1.238 10.9 0.3652 46.0 0.3093 -83.3 4.500 0.5525 86.2 1.124 2.6 0.4122 39.7 0.2708 -103.6 5.000 0.6001 80.0 1.028 -5.3 0.4583 33.1 0.2457 -128.2 5.500 0.6285 72.7 0.908 -9.2 0.4854 28.4 0.2437 -141.6 6.000 0.6478 68.6 0.867 -15.3 0.5463 21.4 0.2877 -171.7 ! ! SIEMENS AG Semiconductor Group, Munich