! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2 V IC = 10 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 0.6918 -3.7 20.679 176.7 0.0014 96.8 0.9772 -1.2 0.020 0.6860 -7.0 20.541 173.5 0.0030 88.6 0.9700 -2.8 0.050 0.6730 -17.2 20.101 164.8 0.0082 82.8 0.9558 -6.8 0.100 0.6125 -32.4 18.581 151.2 0.0152 76.6 0.9057 -12.3 0.150 0.5451 -46.0 16.569 138.9 0.0207 71.1 0.8434 -16.2 0.200 0.4820 -57.4 14.666 130.1 0.0256 68.3 0.7892 -18.4 0.250 0.4163 -67.3 12.895 122.4 0.0297 67.4 0.7436 -19.6 0.300 0.3696 -75.2 11.447 116.5 0.0335 67.1 0.7057 -20.1 0.400 0.2903 -88.4 9.260 108.1 0.0403 66.9 0.6566 -20.4 0.500 0.2362 -100.8 7.648 100.9 0.0472 67.7 0.6253 -20.4 0.600 0.2025 -113.1 6.543 95.4 0.0544 68.7 0.6050 -20.4 0.700 0.1746 -122.7 5.715 90.8 0.0614 69.3 0.5911 -20.6 0.800 0.1555 -135.3 5.046 86.8 0.0688 69.1 0.5813 -20.9 0.900 0.1395 -144.1 4.536 83.2 0.0759 69.3 0.5741 -21.5 1.000 0.1313 -155.9 4.128 80.0 0.0833 70.2 0.5685 -22.2 1.100 0.1292 -169.5 3.792 77.0 0.0906 70.2 0.5632 -23.0 1.200 0.1295 179.9 3.500 73.9 0.0985 70.0 0.5589 -23.9 1.300 0.1276 170.5 3.235 71.3 0.1060 69.9 0.5557 -24.9 1.400 0.1313 162.4 3.022 68.7 0.1137 69.9 0.5532 -26.0 1.500 0.1361 155.8 2.853 66.3 0.1215 69.4 0.5497 -27.2 1.600 0.1467 148.3 2.683 63.5 0.1296 69.1 0.5465 -28.3 1.700 0.1506 141.4 2.548 61.1 0.1376 68.7 0.5429 -29.5 1.800 0.1629 135.7 2.432 58.9 0.1457 68.2 0.5393 -30.9 1.900 0.1711 133.2 2.325 56.6 0.1541 67.9 0.5361 -32.3 2.000 0.1799 128.9 2.215 54.2 0.1622 67.2 0.5328 -33.8 2.200 0.1989 122.0 2.044 50.0 0.1794 66.1 0.5239 -36.8 2.400 0.2209 114.6 1.908 45.5 0.1968 64.9 0.5139 -39.9 2.600 0.2467 110.7 1.790 41.7 0.2150 63.4 0.5019 -43.3 2.800 0.2653 106.2 1.691 37.8 0.2330 61.8 0.4908 -47.0 3.000 0.2900 102.7 1.602 33.9 0.2518 60.1 0.4767 -50.9 3.500 0.3510 95.1 1.423 24.6 0.3004 55.5 0.4380 -62.5 4.000 0.4092 89.6 1.294 16.1 0.3513 50.1 0.3962 -77.3 4.500 0.4622 85.1 1.190 8.0 0.4033 44.0 0.3562 -94.6 5.000 0.5060 80.0 1.109 0.2 0.4545 37.4 0.3275 -114.3 5.500 0.5491 75.2 1.015 -6.7 0.5018 30.3 0.3127 -136.7 6.000 0.5815 70.0 0.944 -13.1 0.5440 22.9 0.3135 -159.0 ! ! SIEMENS AG Semiconductor Group, Munich