! SIEMENS Small Signal Semiconductors ! BFP181 ! Si NPN RF Bipolar Junction Transistor in SOT143 ! VCE = 3.5 V IC = 20 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 0.5687 -5.6 25.857 176.4 0.0012 81.0 0.9391 -1.1 0.020 0.5691 -11.2 25.907 173.6 0.0023 78.3 0.9336 -2.8 0.050 0.5594 -27.1 25.152 164.0 0.0065 82.3 0.9193 -7.4 0.100 0.5334 -52.1 22.738 149.8 0.0115 68.7 0.8680 -13.5 0.150 0.5085 -73.4 20.163 137.7 0.0154 60.5 0.8013 -17.5 0.200 0.4831 -91.0 17.720 128.5 0.0182 57.6 0.7459 -19.8 0.250 0.4669 -104.7 15.436 121.0 0.0205 54.7 0.7002 -21.1 0.300 0.4572 -116.7 13.660 115.4 0.0223 53.4 0.6644 -21.7 0.400 0.4408 -134.7 10.948 106.0 0.0254 52.5 0.6166 -22.1 0.500 0.4300 -147.9 9.015 99.2 0.0284 51.9 0.5880 -22.2 0.600 0.4259 -157.9 7.690 93.8 0.0314 53.0 0.5697 -22.6 0.700 0.4261 -166.0 6.614 89.2 0.0339 54.4 0.5575 -23.1 0.800 0.4258 -173.4 5.880 85.1 0.0368 54.9 0.5492 -23.6 0.900 0.4257 -179.5 5.268 81.8 0.0401 55.7 0.5426 -24.4 1.000 0.4338 174.8 4.750 78.2 0.0427 56.3 0.5372 -25.4 1.100 0.4349 169.5 4.348 74.9 0.0463 56.2 0.5330 -26.5 1.200 0.4368 164.4 3.987 72.2 0.0490 56.4 0.5310 -27.7 1.300 0.4426 160.6 3.672 69.3 0.0525 56.5 0.5277 -28.9 1.400 0.4486 156.0 3.423 66.7 0.0557 56.7 0.5253 -30.2 1.500 0.4548 152.7 3.201 63.6 0.0587 56.4 0.5227 -31.5 1.600 0.4615 148.5 3.001 61.1 0.0623 56.2 0.5213 -32.9 1.700 0.4672 144.6 2.823 58.4 0.0653 56.1 0.5185 -34.5 1.800 0.4745 141.3 2.675 55.9 0.0682 55.7 0.5156 -36.0 1.900 0.4792 138.3 2.530 53.6 0.0719 54.7 0.5137 -37.4 2.000 0.4851 135.1 2.397 51.1 0.0749 54.7 0.5116 -39.1 2.200 0.5011 129.1 2.177 46.3 0.0815 53.8 0.5066 -42.4 2.400 0.5204 123.4 2.003 41.9 0.0879 52.4 0.5018 -45.8 2.600 0.5395 118.4 1.837 37.4 0.0938 51.1 0.4948 -49.3 2.800 0.5533 113.7 1.705 32.8 0.1002 49.6 0.4900 -53.1 3.000 0.5714 108.9 1.587 28.6 0.1064 48.4 0.4832 -56.8 3.500 0.6141 98.9 1.345 18.3 0.1217 44.8 0.4711 -67.0 4.000 0.6524 90.9 1.167 8.7 0.1371 40.8 0.4586 -78.2 4.500 0.6849 83.5 1.018 -0.1 0.1507 36.8 0.4500 -90.3 5.000 0.7132 77.6 0.901 -7.8 0.1654 33.2 0.4460 -102.3 5.500 0.7327 72.3 0.798 -15.9 0.1817 29.0 0.4540 -114.5 6.000 0.7579 67.1 0.716 -22.8 0.1965 24.6 0.4678 -126.5 ! ! SIEMENS AG Semiconductor Group, Munich