! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1 V IC = 3.5 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 0.8707 -1.8 10.231 178.5 0.0017 86.7 0.9911 -0.8 0.020 0.8645 -3.5 10.319 176.5 0.0036 90.0 0.9859 -1.7 0.050 0.8632 -9.0 10.220 171.6 0.0097 85.4 0.9849 -4.2 0.100 0.8449 -17.8 9.999 163.7 0.0187 79.5 0.9693 -8.2 0.150 0.8035 -26.2 9.685 154.8 0.0277 75.1 0.9408 -12.1 0.200 0.7681 -34.1 9.215 148.0 0.0350 72.0 0.9112 -15.1 0.250 0.7208 -41.9 8.760 140.9 0.0418 68.3 0.8772 -17.8 0.300 0.6685 -48.6 8.264 134.8 0.0477 66.3 0.8423 -20.0 0.400 0.5837 -59.9 7.252 125.3 0.0574 61.8 0.7811 -23.2 0.500 0.5046 -70.2 6.338 116.3 0.0656 59.8 0.7300 -25.2 0.600 0.4351 -79.9 5.679 109.1 0.0727 58.2 0.6886 -26.5 0.700 0.3789 -87.9 5.100 103.0 0.0786 57.8 0.6559 -27.5 0.800 0.3331 -95.5 4.579 97.6 0.0852 57.3 0.6310 -28.1 0.900 0.2959 -102.1 4.159 93.1 0.0916 57.5 0.6121 -28.7 1.000 0.2622 -110.3 3.832 88.9 0.0975 57.5 0.5977 -29.5 1.100 0.2374 -119.0 3.557 85.1 0.1039 57.7 0.5846 -30.2 1.200 0.2084 -126.9 3.303 81.2 0.1102 58.0 0.5730 -30.9 1.300 0.1947 -135.4 3.077 78.0 0.1166 58.3 0.5632 -31.6 1.400 0.1780 -145.0 2.885 74.8 0.1226 58.6 0.5555 -32.6 1.500 0.1696 -151.6 2.739 71.9 0.1291 58.8 0.5482 -33.4 1.600 0.1631 -164.4 2.580 68.6 0.1364 58.9 0.5424 -34.3 1.700 0.1573 -173.1 2.455 65.8 0.1431 59.0 0.5353 -35.3 1.800 0.1559 177.6 2.350 63.3 0.1510 58.9 0.5308 -36.6 1.900 0.1638 169.2 2.252 60.5 0.1580 58.9 0.5252 -37.9 2.000 0.1664 162.0 2.150 57.9 0.1658 58.7 0.5201 -39.1 2.200 0.1757 149.1 1.987 53.0 0.1815 58.4 0.5080 -41.8 2.400 0.1956 136.8 1.863 48.1 0.1974 57.7 0.4967 -44.8 2.600 0.2217 127.2 1.752 43.7 0.2147 56.8 0.4826 -48.0 2.800 0.2426 120.3 1.660 39.6 0.2321 55.7 0.4717 -51.7 3.000 0.2701 114.5 1.573 35.1 0.2499 54.6 0.4553 -55.3 3.500 0.3354 103.4 1.398 25.4 0.2970 50.7 0.4172 -67.4 4.000 0.3978 95.3 1.277 16.2 0.3463 46.0 0.3765 -82.6 4.500 0.4541 89.3 1.172 7.8 0.3967 40.4 0.3407 -100.9 5.000 0.5000 83.1 1.087 -0.2 0.4466 34.2 0.3170 -121.3 5.500 0.5444 77.4 0.997 -7.2 0.4922 27.6 0.3084 -143.9 6.000 0.5787 72.0 0.928 -13.6 0.5339 20.4 0.3172 -166.0 ! ! SIEMENS AG Semiconductor Group, Munich