! SIEMENS Small Signal Semiconductors ! BFP181 ! Si NPN RF Bipolar Junction Transistor in SOT143 ! VCE = 1.75 V IC = 2 mA ! Common Emitter S-Parameters: March 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9307 -1.3 6.463 179.3 0.0014 87.8 0.9974 -0.4 0.020 0.9332 -2.1 6.455 178.8 0.0025 83.7 0.9902 -0.9 0.050 0.9316 -5.4 6.453 175.6 0.0075 87.8 0.9935 -2.5 0.100 0.9219 -11.0 6.403 171.2 0.0146 82.5 0.9909 -5.0 0.150 0.9136 -16.3 6.342 166.7 0.0221 79.1 0.9847 -7.4 0.200 0.9051 -21.9 6.336 162.3 0.0287 77.0 0.9754 -9.8 0.250 0.8929 -27.4 6.229 157.9 0.0353 74.0 0.9660 -12.1 0.300 0.8799 -32.4 6.125 154.4 0.0419 70.6 0.9530 -14.4 0.400 0.8439 -42.3 5.889 145.6 0.0538 65.0 0.9269 -18.5 0.500 0.7928 -52.5 5.617 137.8 0.0642 59.0 0.8951 -22.3 0.600 0.7517 -61.8 5.360 131.0 0.0729 54.4 0.8615 -25.7 0.700 0.7137 -70.1 4.997 124.7 0.0802 50.5 0.8290 -28.6 0.800 0.6690 -79.0 4.761 118.5 0.0860 46.6 0.7994 -31.1 0.900 0.6289 -87.2 4.497 113.0 0.0921 43.1 0.7714 -33.3 1.000 0.5933 -95.5 4.241 107.6 0.0961 40.2 0.7450 -35.3 1.100 0.5616 -103.3 4.040 102.4 0.1003 37.5 0.7214 -37.2 1.200 0.5298 -111.1 3.806 98.1 0.1027 34.8 0.7007 -39.0 1.300 0.5121 -118.7 3.599 93.7 0.1055 32.9 0.6811 -40.5 1.400 0.4852 -126.2 3.422 89.6 0.1079 31.0 0.6634 -42.1 1.500 0.4727 -133.6 3.266 85.6 0.1097 29.4 0.6463 -43.2 1.600 0.4564 -140.5 3.097 81.9 0.1115 28.2 0.6342 -44.4 1.700 0.4419 -148.2 2.956 78.1 0.1133 26.6 0.6205 -45.9 1.800 0.4304 -155.4 2.836 74.3 0.1150 25.7 0.6086 -47.0 1.900 0.4247 -162.3 2.717 71.1 0.1164 24.3 0.5970 -48.3 2.000 0.4186 -169.1 2.592 67.8 0.1175 23.6 0.5869 -49.5 2.200 0.4158 178.6 2.381 61.5 0.1198 21.8 0.5706 -52.2 2.400 0.4181 166.4 2.219 55.5 0.1216 20.3 0.5544 -54.9 2.600 0.4340 156.2 2.052 50.0 0.1231 19.4 0.5381 -57.6 2.800 0.4491 146.3 1.919 44.1 0.1250 18.2 0.5282 -60.5 3.000 0.4647 137.6 1.799 38.8 0.1268 17.2 0.5158 -63.4 3.500 0.5134 119.9 1.539 26.5 0.1328 15.4 0.4997 -71.6 4.000 0.5615 106.7 1.338 15.2 0.1378 13.9 0.4841 -81.1 4.500 0.6054 95.8 1.170 5.0 0.1433 12.2 0.4765 -91.7 5.000 0.6400 87.4 1.037 -4.2 0.1493 11.5 0.4727 -102.4 5.500 0.6663 80.9 0.925 -13.0 0.1596 10.8 0.4795 -113.4 6.000 0.7000 74.5 0.834 -20.9 0.1704 8.7 0.4928 -124.7 ! ! SIEMENS AG Semiconductor Group, Munich