! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.75 V IC = 1 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 0.9599 -0.8 3.428 179.6 0.0017 93.7 0.9989 -0.4 0.020 0.9576 -1.6 3.463 178.3 0.0034 89.7 0.9934 -0.8 0.050 0.9612 -4.0 3.507 176.1 0.0085 88.9 0.9974 -2.0 0.100 0.9563 -8.3 3.447 172.4 0.0182 84.4 0.9960 -3.9 0.150 0.9484 -12.6 3.489 167.3 0.0270 81.1 0.9900 -5.9 0.200 0.9376 -16.2 3.431 163.7 0.0358 79.5 0.9831 -7.7 0.250 0.9291 -20.4 3.393 159.8 0.0441 76.7 0.9777 -9.5 0.300 0.9103 -24.4 3.392 155.4 0.0524 74.2 0.9681 -11.3 0.400 0.8765 -32.3 3.293 148.5 0.0676 69.6 0.9483 -14.7 0.500 0.8303 -39.7 3.114 140.6 0.0806 64.9 0.9229 -17.9 0.600 0.7949 -47.0 3.024 133.9 0.0928 61.4 0.8986 -20.7 0.700 0.7464 -53.7 2.935 127.5 0.1030 57.8 0.8733 -23.2 0.800 0.7004 -60.7 2.796 121.2 0.1111 54.6 0.8466 -25.5 0.900 0.6568 -66.4 2.658 115.5 0.1186 52.0 0.8214 -27.5 1.000 0.6175 -72.7 2.539 110.5 0.1245 49.7 0.7981 -29.3 1.100 0.5754 -78.9 2.442 105.6 0.1298 47.8 0.7793 -31.0 1.200 0.5359 -85.2 2.330 100.7 0.1344 46.1 0.7606 -32.7 1.300 0.5018 -90.8 2.237 96.4 0.1386 44.9 0.7425 -34.0 1.400 0.4620 -97.3 2.142 91.9 0.1409 43.8 0.7262 -35.5 1.500 0.4308 -103.1 2.083 88.0 0.1439 43.4 0.7097 -36.6 1.600 0.3985 -110.2 1.991 83.6 0.1465 42.9 0.6973 -37.7 1.700 0.3671 -116.8 1.932 79.9 0.1486 43.2 0.6805 -38.9 1.800 0.3454 -122.8 1.859 76.6 0.1519 43.1 0.6703 -40.1 1.900 0.3279 -130.9 1.804 72.9 0.1545 43.2 0.6614 -41.4 2.000 0.3077 -137.3 1.739 69.4 0.1575 43.3 0.6538 -42.5 2.200 0.2781 -152.7 1.642 62.9 0.1632 44.5 0.6339 -45.2 2.400 0.2618 -168.3 1.550 57.0 0.1706 45.7 0.6190 -47.8 2.600 0.2567 174.2 1.478 51.4 0.1806 47.3 0.6025 -50.5 2.800 0.2665 161.1 1.405 46.3 0.1907 48.1 0.5930 -54.0 3.000 0.2797 147.5 1.347 40.9 0.2032 49.4 0.5763 -57.3 3.500 0.3382 123.4 1.207 29.7 0.2431 50.5 0.5491 -68.3 4.000 0.3992 108.3 1.098 19.6 0.2939 49.4 0.5206 -82.5 4.500 0.4591 97.2 1.007 11.1 0.3527 45.9 0.4940 -99.4 5.000 0.5063 88.3 0.939 3.1 0.4158 40.3 0.4699 -118.1 5.500 0.5474 80.9 0.864 -3.5 0.4750 33.3 0.4559 -138.6 6.000 0.5753 74.2 0.804 -8.9 0.5287 25.5 0.4522 -159.1 ! ! SIEMENS AG Semiconductor Group, Munich