! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 5 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 0.7468 -2.6 20.072 176.8 0.0014 97.2 0.9863 -1.1 0.020 0.7422 -5.0 19.690 174.2 0.0031 84.4 0.9838 -2.4 0.050 0.7323 -13.1 19.593 166.8 0.0075 83.6 0.9733 -5.9 0.100 0.6870 -25.1 18.575 155.1 0.0145 77.5 0.9322 -11.1 0.150 0.6212 -35.5 16.892 144.0 0.0203 73.3 0.8803 -15.2 0.200 0.5590 -44.7 15.404 135.4 0.0256 71.6 0.8297 -17.9 0.250 0.4986 -51.8 13.841 127.8 0.0301 69.2 0.7816 -19.6 0.300 0.4424 -58.1 12.407 122.0 0.0338 68.8 0.7427 -20.6 0.400 0.3551 -67.8 10.248 113.1 0.0413 67.6 0.6868 -21.6 0.500 0.2853 -76.7 8.575 105.3 0.0477 67.9 0.6463 -21.8 0.600 0.2362 -82.9 7.411 99.7 0.0552 68.5 0.6191 -21.9 0.700 0.1998 -88.9 6.494 95.0 0.0619 69.0 0.6018 -22.1 0.800 0.1665 -94.9 5.751 90.8 0.0695 68.9 0.5886 -22.3 0.900 0.1378 -101.2 5.164 87.0 0.0768 68.8 0.5791 -22.6 1.000 0.1091 -109.2 4.713 83.7 0.0837 69.2 0.5708 -23.1 1.100 0.0942 -119.0 4.341 80.9 0.0911 69.3 0.5647 -23.8 1.200 0.0758 -128.6 4.008 77.8 0.0989 69.2 0.5590 -24.6 1.300 0.0668 -140.2 3.710 75.3 0.1063 69.1 0.5546 -25.3 1.400 0.0587 -157.0 3.465 72.6 0.1135 68.8 0.5511 -26.3 1.500 0.0534 -167.4 3.271 70.3 0.1212 68.4 0.5472 -27.3 1.600 0.0604 169.0 3.075 67.5 0.1290 67.9 0.5431 -28.3 1.700 0.0611 156.3 2.917 65.3 0.1368 67.7 0.5392 -29.4 1.800 0.0688 139.3 2.784 63.1 0.1443 67.0 0.5356 -30.6 1.900 0.0817 137.1 2.668 60.8 0.1524 66.7 0.5316 -31.9 2.000 0.0909 130.6 2.540 58.6 0.1608 66.0 0.5281 -33.1 2.200 0.1083 120.0 2.341 54.4 0.1772 64.8 0.5190 -35.8 2.400 0.1323 112.1 2.192 50.1 0.1937 63.6 0.5085 -38.6 2.600 0.1556 107.9 2.054 46.4 0.2108 62.1 0.4962 -41.7 2.800 0.1770 103.6 1.942 42.6 0.2283 60.6 0.4855 -45.0 3.000 0.2002 101.5 1.840 38.7 0.2456 59.0 0.4713 -48.5 3.500 0.2629 96.0 1.638 29.5 0.2908 54.5 0.4326 -58.9 4.000 0.3221 92.0 1.499 20.9 0.3382 49.5 0.3896 -72.2 4.500 0.3793 88.3 1.384 12.5 0.3867 43.7 0.3475 -87.9 5.000 0.4358 84.1 1.290 4.3 0.4348 37.7 0.3139 -105.7 5.500 0.4824 79.9 1.192 -3.3 0.4802 31.1 0.2915 -126.7 6.000 0.5255 74.9 1.112 -10.3 0.5222 24.2 0.2850 -148.6 ! ! SIEMENS AG Semiconductor Group, Munich