! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2.5 V IC = 2.5 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 0.9092 -1.4 7.843 178.9 0.0014 94.1 0.9964 -0.6 0.020 0.9073 -2.7 7.823 177.2 0.0034 89.3 0.9951 -1.3 0.050 0.9053 -6.5 7.760 173.7 0.0089 84.5 0.9928 -3.0 0.100 0.8902 -13.0 7.738 167.5 0.0169 82.7 0.9851 -6.1 0.150 0.8710 -19.3 7.541 160.5 0.0249 78.2 0.9685 -9.1 0.200 0.8445 -25.3 7.367 154.9 0.0326 75.3 0.9508 -11.5 0.250 0.8091 -31.6 7.219 148.9 0.0394 71.9 0.9298 -14.0 0.300 0.7748 -37.1 6.937 143.4 0.0460 69.4 0.9045 -16.2 0.400 0.7067 -46.8 6.313 134.7 0.0569 65.0 0.8599 -19.7 0.500 0.6250 -55.8 5.740 125.4 0.0658 61.8 0.8163 -22.2 0.600 0.5585 -64.3 5.295 118.1 0.0734 59.2 0.7743 -24.4 0.700 0.5003 -71.1 4.856 111.8 0.0798 57.8 0.7393 -25.9 0.800 0.4498 -78.2 4.417 106.0 0.0855 56.5 0.7121 -26.9 0.900 0.4035 -83.8 4.062 100.9 0.0915 55.8 0.6907 -28.0 1.000 0.3580 -90.3 3.789 96.3 0.0964 55.7 0.6718 -28.9 1.100 0.3177 -97.1 3.544 92.1 0.1018 55.7 0.6549 -29.8 1.200 0.2851 -102.8 3.317 87.9 0.1066 55.8 0.6402 -30.7 1.300 0.2562 -109.8 3.107 84.4 0.1118 55.9 0.6276 -31.4 1.400 0.2296 -115.6 2.924 80.9 0.1167 56.2 0.6175 -32.3 1.500 0.2088 -121.9 2.783 77.9 0.1223 56.6 0.6086 -33.1 1.600 0.1901 -131.8 2.627 74.3 0.1278 56.7 0.5999 -34.0 1.700 0.1726 -138.4 2.499 71.7 0.1337 57.2 0.5930 -34.9 1.800 0.1610 -148.6 2.397 68.8 0.1399 57.2 0.5873 -36.0 1.900 0.1552 -158.1 2.307 65.9 0.1462 57.4 0.5812 -37.1 2.000 0.1463 -168.8 2.211 63.1 0.1525 57.5 0.5757 -38.2 2.200 0.1471 174.0 2.038 58.1 0.1662 57.8 0.5634 -40.6 2.400 0.1540 156.1 1.923 52.9 0.1806 57.8 0.5515 -43.3 2.600 0.1769 141.5 1.805 48.4 0.1961 57.4 0.5379 -46.2 2.800 0.1943 130.6 1.714 44.1 0.2118 56.8 0.5281 -49.4 3.000 0.2203 123.2 1.624 39.6 0.2287 56.1 0.5131 -52.8 3.500 0.2899 108.4 1.447 29.5 0.2733 53.4 0.4799 -63.4 4.000 0.3510 98.7 1.327 20.1 0.3229 49.5 0.4428 -77.0 4.500 0.4107 92.3 1.223 11.6 0.3751 44.5 0.4084 -93.1 5.000 0.4602 85.9 1.136 3.3 0.4286 38.6 0.3808 -111.3 5.500 0.5093 80.0 1.046 -4.2 0.4791 31.8 0.3612 -131.8 6.000 0.5461 74.6 0.976 -10.9 0.5260 24.6 0.3585 -152.8 ! ! SIEMENS AG Semiconductor Group, Munich