! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 V IC = 9 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 0.7923 -2.3 19.912 176.1 0.0013 80.9 0.9823 -1.0 0.020 0.7946 -4.4 19.476 173.9 0.0029 82.1 0.9728 -2.2 0.050 0.7864 -11.5 19.235 167.4 0.0073 84.1 0.9705 -5.7 0.100 0.7351 -22.7 18.404 156.4 0.0147 79.2 0.9340 -10.7 0.150 0.6767 -31.7 16.871 145.7 0.0205 73.7 0.8868 -14.9 0.200 0.6109 -40.3 15.515 137.2 0.0261 71.5 0.8381 -17.6 0.250 0.5439 -47.3 14.070 129.7 0.0307 69.0 0.7894 -19.6 0.300 0.4911 -53.0 12.667 123.8 0.0348 69.1 0.7505 -20.8 0.400 0.4019 -61.1 10.538 115.0 0.0421 67.6 0.6929 -22.0 0.500 0.3221 -68.4 8.864 107.0 0.0493 67.9 0.6501 -22.4 0.600 0.2740 -73.4 7.683 101.3 0.0567 67.9 0.6209 -22.5 0.700 0.2273 -77.5 6.746 96.6 0.0637 68.4 0.6011 -22.7 0.800 0.1910 -81.8 5.983 92.4 0.0709 68.2 0.5879 -22.9 0.900 0.1644 -83.2 5.379 88.5 0.0782 68.5 0.5767 -23.2 1.000 0.1352 -88.4 4.914 85.2 0.0851 68.6 0.5677 -23.7 1.100 0.1094 -93.8 4.527 82.2 0.0929 68.6 0.5603 -24.3 1.200 0.0911 -99.7 4.187 79.1 0.1002 68.4 0.5538 -24.9 1.300 0.0714 -100.9 3.874 76.7 0.1081 68.1 0.5489 -25.7 1.400 0.0531 -108.8 3.622 74.1 0.1152 67.9 0.5453 -26.7 1.500 0.0469 -113.9 3.417 71.9 0.1230 67.5 0.5411 -27.5 1.600 0.0333 -140.0 3.213 69.0 0.1307 67.0 0.5365 -28.5 1.700 0.0245 -165.0 3.047 66.8 0.1381 66.6 0.5321 -29.6 1.800 0.0263 159.5 2.910 64.6 0.1461 66.1 0.5287 -30.8 1.900 0.0375 142.7 2.785 62.4 0.1541 65.6 0.5240 -31.9 2.000 0.0450 129.8 2.658 60.2 0.1623 65.0 0.5206 -33.1 2.200 0.0618 117.6 2.449 56.0 0.1787 63.8 0.5109 -35.8 2.400 0.0880 108.1 2.292 51.8 0.1948 62.6 0.4998 -38.4 2.600 0.1133 105.1 2.145 48.1 0.2114 60.8 0.4872 -41.5 2.800 0.1342 101.3 2.035 44.4 0.2287 59.5 0.4755 -44.6 3.000 0.1582 99.3 1.926 40.5 0.2456 57.7 0.4614 -47.9 3.500 0.2234 96.0 1.716 31.3 0.2894 53.2 0.4217 -58.1 4.000 0.2865 93.2 1.573 22.6 0.3349 48.3 0.3772 -70.8 4.500 0.3431 89.7 1.454 14.2 0.3813 42.8 0.3335 -85.9 5.000 0.3997 86.1 1.356 6.0 0.4268 37.0 0.2985 -103.2 5.500 0.4518 81.4 1.255 -1.7 0.4699 30.7 0.2739 -123.9 6.000 0.4945 77.0 1.173 -9.0 0.5112 24.0 0.2654 -145.6 ! ! SIEMENS AG Semiconductor Group, Munich