! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3 V IC = 2 mA ! Common Emitter S-Parameters: May 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9247 -1.2 6.503 179.0 0.0017 94.2 0.9968 -0.6 0.020 0.9218 -2.4 6.362 177.6 0.0032 90.9 0.9911 -1.1 0.050 0.9235 -5.6 6.482 174.5 0.0085 87.2 0.9946 -2.7 0.100 0.9146 -11.5 6.491 169.1 0.0174 83.2 0.9902 -5.3 0.150 0.8969 -16.8 6.298 162.8 0.0252 79.6 0.9768 -7.9 0.200 0.8747 -22.4 6.270 157.6 0.0329 76.9 0.9633 -10.3 0.250 0.8549 -27.9 6.115 152.3 0.0404 73.5 0.9465 -12.6 0.300 0.8246 -32.6 5.862 147.5 0.0469 71.3 0.9286 -14.6 0.400 0.7589 -42.2 5.545 138.8 0.0589 66.3 0.8904 -18.2 0.500 0.6862 -51.0 5.132 129.8 0.0684 62.4 0.8488 -21.2 0.600 0.6355 -58.8 4.744 122.9 0.0774 59.6 0.8112 -23.5 0.700 0.5728 -65.7 4.399 116.5 0.0842 57.5 0.7796 -25.4 0.800 0.5205 -72.7 4.064 110.3 0.0906 55.5 0.7513 -26.8 0.900 0.4656 -78.2 3.799 104.7 0.0963 54.4 0.7250 -28.1 1.000 0.4199 -84.8 3.564 99.9 0.1005 53.8 0.7029 -29.2 1.100 0.3799 -91.8 3.355 95.5 0.1056 53.4 0.6840 -30.3 1.200 0.3433 -97.0 3.145 91.3 0.1102 53.3 0.6679 -31.3 1.300 0.3157 -102.9 2.949 87.7 0.1149 53.2 0.6544 -32.1 1.400 0.2861 -109.1 2.782 84.0 0.1191 53.2 0.6433 -33.2 1.500 0.2630 -114.5 2.652 80.8 0.1240 53.4 0.6332 -34.0 1.600 0.2363 -123.5 2.514 76.9 0.1288 53.5 0.6248 -34.9 1.700 0.2109 -131.4 2.414 73.8 0.1340 54.2 0.6146 -35.8 1.800 0.1909 -139.3 2.319 70.8 0.1397 54.5 0.6065 -36.8 1.900 0.1831 -147.8 2.232 67.8 0.1452 55.0 0.5996 -37.9 2.000 0.1729 -156.5 2.136 64.9 0.1509 55.2 0.5936 -38.9 2.200 0.1651 -173.8 1.980 59.6 0.1630 55.4 0.5817 -41.6 2.400 0.1657 167.7 1.864 54.3 0.1761 56.0 0.5672 -44.0 2.600 0.1805 151.3 1.754 49.6 0.1905 55.8 0.5555 -46.9 2.800 0.1961 138.8 1.669 45.1 0.2059 55.8 0.5436 -50.0 3.000 0.2210 129.6 1.583 40.4 0.2208 55.3 0.5305 -53.4 3.500 0.2891 111.6 1.415 30.2 0.2652 53.2 0.4991 -63.9 4.000 0.3539 101.4 1.291 20.7 0.3149 49.9 0.4638 -77.4 4.500 0.4164 93.9 1.195 12.1 0.3694 45.1 0.4290 -93.3 5.000 0.4637 86.9 1.111 3.6 0.4238 39.4 0.4029 -111.4 5.500 0.5110 80.7 1.019 -3.7 0.4767 32.6 0.3853 -131.6 6.000 0.5476 74.5 0.950 -10.2 0.5253 25.3 0.3784 -152.2 ! ! f Fmin Gammaopt rn/50 ! GHz dB MAG ANG - 0.450 1.35 0.60 17 0.40 0.900 1.45 0.50 36 0.40 1.800 1.80 0.31 80 0.37 ! ! SIEMENS AG Semiconductor Group, Munich