! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.5 V IC = 3 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 0.8913 -1.6 9.040 178.7 0.0014 85.5 0.9951 -0.8 0.020 0.8863 -3.1 9.137 176.9 0.0036 88.2 0.9938 -1.5 0.050 0.8867 -7.6 9.107 172.7 0.0089 86.7 0.9904 -3.6 0.100 0.8699 -15.2 8.895 165.7 0.0178 82.1 0.9800 -7.0 0.150 0.8365 -22.9 8.756 157.6 0.0258 77.0 0.9575 -10.4 0.200 0.8051 -29.2 8.395 151.5 0.0332 73.7 0.9323 -13.2 0.250 0.7682 -36.0 8.049 145.2 0.0403 70.3 0.9074 -15.7 0.300 0.7195 -42.7 7.714 139.1 0.0464 67.9 0.8777 -17.9 0.400 0.6415 -53.2 6.924 129.8 0.0564 63.2 0.8217 -21.3 0.500 0.5607 -62.4 6.136 120.8 0.0649 61.2 0.7736 -23.7 0.600 0.4917 -71.3 5.571 113.6 0.0723 59.1 0.7345 -25.3 0.700 0.4342 -78.6 5.063 107.2 0.0782 57.7 0.7006 -26.5 0.800 0.3817 -86.1 4.581 101.5 0.0841 57.0 0.6733 -27.5 0.900 0.3434 -92.2 4.177 96.8 0.0898 56.9 0.6506 -28.2 1.000 0.3033 -98.5 3.865 92.6 0.0954 56.9 0.6343 -28.9 1.100 0.2726 -105.6 3.597 88.6 0.1016 57.3 0.6210 -29.7 1.200 0.2408 -112.9 3.350 84.6 0.1072 57.3 0.6087 -30.5 1.300 0.2198 -120.2 3.129 81.3 0.1132 57.4 0.5981 -31.3 1.400 0.1930 -129.0 2.940 77.9 0.1183 57.7 0.5901 -32.2 1.500 0.1807 -136.4 2.795 74.9 0.1245 58.0 0.5813 -33.0 1.600 0.1676 -146.0 2.634 71.4 0.1310 58.2 0.5741 -33.8 1.700 0.1573 -155.3 2.508 68.7 0.1373 58.7 0.5661 -34.7 1.800 0.1472 -164.6 2.397 66.1 0.1444 58.6 0.5610 -35.9 1.900 0.1483 -175.6 2.303 63.3 0.1511 58.8 0.5558 -37.1 2.000 0.1485 176.2 2.201 60.6 0.1580 58.6 0.5511 -38.3 2.200 0.1546 159.2 2.038 55.5 0.1727 58.6 0.5384 -40.9 2.400 0.1696 144.6 1.911 50.7 0.1877 58.1 0.5276 -43.6 2.600 0.1942 132.7 1.797 46.2 0.2044 57.6 0.5136 -46.6 2.800 0.2139 124.3 1.703 42.1 0.2208 56.7 0.5039 -50.1 3.000 0.2409 118.0 1.616 37.6 0.2384 55.8 0.4883 -53.6 3.500 0.3085 105.6 1.439 27.8 0.2844 52.4 0.4524 -64.7 4.000 0.3695 96.8 1.316 18.5 0.3336 48.1 0.4146 -79.0 4.500 0.4283 90.4 1.210 10.0 0.3851 42.8 0.3786 -95.9 5.000 0.4760 84.5 1.125 1.8 0.4369 36.7 0.3505 -114.8 5.500 0.5234 78.8 1.035 -5.5 0.4851 30.0 0.3367 -136.2 6.000 0.5572 73.4 0.963 -12.0 0.5303 22.8 0.3381 -157.7 ! ! SIEMENS AG Semiconductor Group, Munich