! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 10 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 0.7802 -2.4 21.051 175.8 0.0014 83.6 0.9817 -1.0 0.020 0.7798 -4.6 20.666 173.6 0.0032 86.1 0.9778 -2.4 0.050 0.7644 -12.1 20.516 166.7 0.0071 81.6 0.9672 -5.9 0.100 0.7163 -23.8 19.323 155.3 0.0145 78.4 0.9273 -11.2 0.150 0.6471 -33.5 17.669 144.0 0.0203 73.6 0.8761 -15.2 0.200 0.5817 -41.9 16.108 135.5 0.0253 71.8 0.8239 -18.1 0.250 0.5252 -48.6 14.432 128.2 0.0298 69.6 0.7773 -19.8 0.300 0.4673 -54.4 12.977 122.4 0.0343 68.9 0.7406 -20.9 0.400 0.3732 -62.8 10.746 113.3 0.0414 68.3 0.6805 -21.8 0.500 0.3021 -68.8 8.981 105.7 0.0485 68.7 0.6393 -22.0 0.600 0.2587 -74.2 7.750 100.5 0.0559 68.6 0.6143 -22.2 0.700 0.2153 -77.7 6.799 95.7 0.0630 68.9 0.5946 -22.4 0.800 0.1757 -83.5 6.017 91.4 0.0702 68.7 0.5820 -22.5 0.900 0.1467 -84.1 5.416 87.6 0.0779 69.1 0.5715 -22.7 1.000 0.1179 -88.1 4.937 84.5 0.0851 69.2 0.5633 -23.2 1.100 0.0973 -93.1 4.548 81.6 0.0925 69.1 0.5567 -23.9 1.200 0.0797 -98.3 4.203 78.7 0.1002 69.1 0.5514 -24.6 1.300 0.0647 -102.3 3.884 76.2 0.1079 68.7 0.5462 -25.3 1.400 0.0472 -113.7 3.633 73.7 0.1151 68.5 0.5428 -26.4 1.500 0.0364 -120.4 3.426 71.4 0.1227 68.0 0.5388 -27.3 1.600 0.0268 -152.1 3.223 68.6 0.1311 67.4 0.5347 -28.2 1.700 0.0234 170.2 3.058 66.3 0.1386 67.1 0.5305 -29.2 1.800 0.0270 140.9 2.920 64.2 0.1467 66.5 0.5259 -30.4 1.900 0.0407 130.7 2.794 62.0 0.1547 66.0 0.5223 -31.7 2.000 0.0476 127.8 2.665 59.9 0.1626 65.3 0.5185 -32.8 2.200 0.0672 113.5 2.456 55.7 0.1789 64.0 0.5093 -35.5 2.400 0.0918 106.8 2.296 51.6 0.1956 62.8 0.4987 -38.2 2.600 0.1173 102.0 2.153 47.8 0.2122 61.1 0.4854 -41.3 2.800 0.1383 100.6 2.036 44.2 0.2293 59.6 0.4741 -44.4 3.000 0.1598 98.8 1.929 40.3 0.2463 57.9 0.4599 -47.8 3.500 0.2276 95.5 1.721 31.2 0.2901 53.3 0.4197 -57.9 4.000 0.2851 92.8 1.574 22.6 0.3358 48.4 0.3756 -70.8 4.500 0.3446 89.7 1.455 14.2 0.3822 42.8 0.3316 -85.8 5.000 0.4021 86.0 1.358 5.9 0.4275 37.0 0.2956 -103.1 5.500 0.4503 81.5 1.253 -1.8 0.4704 30.7 0.2716 -123.9 6.000 0.4960 76.5 1.174 -9.1 0.5114 24.0 0.2632 -145.7 ! ! SIEMENS AG Semiconductor Group, Munich