! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 0.75 V IC = 2.5 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 0.9157 -3.2 8.444 176.8 0.0051 89.7 0.9905 -1.7 0.020 0.9025 -6.4 8.381 175.2 0.0104 86.0 0.9879 -3.6 0.050 0.8976 -16.4 8.188 167.4 0.0257 80.0 0.9775 -8.9 0.100 0.8678 -32.1 7.882 156.8 0.0499 72.3 0.9392 -17.2 0.150 0.8145 -46.9 7.323 145.6 0.0700 63.9 0.8796 -24.7 0.200 0.7697 -60.1 6.819 137.0 0.0857 58.4 0.8205 -30.3 0.250 0.7166 -72.6 6.264 128.5 0.0987 52.5 0.7528 -35.6 0.300 0.6693 -83.0 5.699 121.9 0.1081 49.0 0.6977 -39.4 0.400 0.6019 -101.3 4.808 111.1 0.1220 42.9 0.6010 -44.7 0.500 0.5475 -116.6 4.076 101.9 0.1309 39.5 0.5280 -48.1 0.600 0.5171 -130.1 3.564 94.5 0.1377 37.5 0.4755 -50.7 0.700 0.4952 -141.1 3.152 88.2 0.1432 36.4 0.4352 -52.7 0.800 0.4806 -150.2 2.808 82.8 0.1486 35.9 0.4022 -54.2 0.900 0.4663 -159.0 2.541 77.7 0.1538 36.0 0.3794 -55.3 1.000 0.4604 -167.2 2.331 73.0 0.1583 36.1 0.3609 -56.9 1.100 0.4641 -175.5 2.161 68.7 0.1632 36.6 0.3435 -58.9 1.200 0.4607 178.3 2.006 64.6 0.1683 37.1 0.3286 -60.7 1.300 0.4661 172.5 1.870 61.0 0.1746 37.8 0.3158 -62.2 1.400 0.4686 167.3 1.756 57.5 0.1802 38.6 0.3069 -64.5 1.500 0.4704 162.2 1.671 54.1 0.1868 39.5 0.2952 -66.6 1.600 0.4795 156.9 1.573 50.4 0.1941 39.8 0.2857 -68.8 1.700 0.4809 152.4 1.500 47.3 0.2016 40.6 0.2749 -71.2 1.800 0.4897 147.7 1.439 44.4 0.2104 40.8 0.2691 -73.4 1.900 0.4970 143.8 1.383 41.4 0.2187 41.2 0.2626 -77.2 2.000 0.5025 139.6 1.324 38.5 0.2285 41.3 0.2534 -80.3 2.200 0.5216 132.4 1.223 33.0 0.2475 41.3 0.2420 -87.0 2.400 0.5335 125.5 1.154 27.9 0.2679 40.8 0.2269 -96.5 2.600 0.5604 118.7 1.079 23.3 0.2889 39.9 0.2163 -104.9 2.800 0.5760 113.2 1.023 19.1 0.3109 38.5 0.2089 -116.8 3.000 0.5959 107.8 0.971 15.0 0.3331 36.9 0.2061 -128.1 3.500 0.6384 96.7 0.857 6.2 0.3882 31.7 0.2250 -159.2 4.000 0.6779 87.5 0.772 -0.8 0.4363 25.0 0.2745 172.3 4.500 0.7017 79.9 0.707 -6.6 0.4715 17.8 0.3286 150.5 5.000 0.7145 72.2 0.646 -8.0 0.4910 14.1 0.3357 142.7 5.500 0.7193 67.7 0.632 -12.4 0.5351 6.6 0.4380 128.1 6.000 0.7257 62.8 0.614 -16.0 0.5586 0.1 0.4890 116.6 ! ! SIEMENS AG Semiconductor Group, Munich