! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 6 V IC = 4.5 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 0.8585 -1.8 12.590 177.9 0.0015 96.6 0.9931 -0.8 0.020 0.8576 -3.3 12.292 176.1 0.0033 85.2 0.9915 -1.7 0.050 0.8516 -8.6 12.371 171.2 0.0081 86.1 0.9857 -4.1 0.100 0.8279 -16.9 12.187 163.0 0.0158 81.6 0.9705 -8.0 0.150 0.7917 -24.5 11.568 154.4 0.0230 76.7 0.9405 -11.6 0.200 0.7457 -32.0 11.128 147.2 0.0293 73.9 0.9085 -14.5 0.250 0.6966 -38.9 10.508 140.3 0.0347 69.8 0.8750 -17.0 0.300 0.6526 -44.6 9.746 134.5 0.0400 68.3 0.8416 -18.9 0.400 0.5572 -54.9 8.569 124.9 0.0484 65.4 0.7836 -21.6 0.500 0.4703 -63.0 7.484 115.9 0.0556 63.5 0.7324 -23.3 0.600 0.4113 -70.6 6.642 109.5 0.0624 62.5 0.6936 -24.2 0.700 0.3548 -76.4 5.936 103.9 0.0688 62.7 0.6672 -25.0 0.800 0.3086 -82.3 5.317 98.8 0.0754 62.3 0.6447 -25.5 0.900 0.2673 -86.3 4.844 94.1 0.0816 62.4 0.6281 -26.0 1.000 0.2297 -92.2 4.456 90.2 0.0874 62.8 0.6130 -26.5 1.100 0.1996 -99.0 4.128 86.8 0.0942 63.0 0.6019 -27.2 1.200 0.1729 -104.6 3.831 83.2 0.1004 63.2 0.5919 -27.8 1.300 0.1522 -109.4 3.557 80.3 0.1070 63.3 0.5837 -28.5 1.400 0.1277 -116.0 3.329 77.4 0.1131 63.4 0.5771 -29.4 1.500 0.1183 -122.5 3.151 74.8 0.1205 63.3 0.5716 -30.2 1.600 0.1003 -134.7 2.968 71.6 0.1274 63.2 0.5664 -31.0 1.700 0.0834 -146.9 2.828 69.0 0.1346 63.0 0.5610 -32.0 1.800 0.0795 -162.8 2.705 66.6 0.1419 63.0 0.5552 -33.1 1.900 0.0776 -175.3 2.593 64.1 0.1490 62.9 0.5502 -34.2 2.000 0.0769 173.2 2.474 61.6 0.1565 62.5 0.5462 -35.3 2.200 0.0893 151.1 2.280 57.1 0.1718 61.9 0.5365 -37.9 2.400 0.1069 134.4 2.140 52.5 0.1877 61.1 0.5246 -40.5 2.600 0.1341 123.4 2.003 48.4 0.2038 60.0 0.5128 -43.5 2.800 0.1537 115.2 1.903 44.5 0.2205 58.9 0.5013 -46.6 3.000 0.1807 110.9 1.800 40.4 0.2375 57.5 0.4879 -49.9 3.500 0.2463 101.4 1.606 30.8 0.2818 53.7 0.4511 -60.2 4.000 0.3111 95.4 1.472 21.9 0.3289 49.2 0.4102 -73.1 4.500 0.3704 91.0 1.361 13.4 0.3781 43.9 0.3693 -88.5 5.000 0.4238 85.8 1.268 5.1 0.4268 38.0 0.3381 -106.0 5.500 0.4746 81.1 1.170 -2.6 0.4735 31.6 0.3160 -126.3 6.000 0.5152 75.8 1.096 -9.8 0.5175 24.6 0.3077 -147.5 ! ! SIEMENS AG Semiconductor Group, Munich