! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3.5 V IC = 1.2 mA ! Common Emitter S-Parameters: August 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9604 -1.7 4.274 177.8 0.0030 90.3 0.9982 -0.6 0.020 0.9519 -3.7 4.275 177.3 0.0061 86.4 0.9993 -1.4 0.050 0.9476 -9.1 4.201 172.5 0.0151 85.0 0.9943 -3.4 0.100 0.9402 -17.9 4.166 166.5 0.0310 79.6 0.9896 -6.6 0.150 0.9231 -26.9 4.074 158.8 0.0452 73.7 0.9716 -9.9 0.200 0.9047 -35.0 3.981 152.9 0.0585 69.3 0.9550 -12.6 0.250 0.8782 -43.8 3.890 146.3 0.0706 64.7 0.9323 -15.6 0.300 0.8411 -51.6 3.736 140.4 0.0811 60.9 0.9108 -17.9 0.400 0.7856 -66.3 3.437 130.3 0.0978 53.4 0.8612 -22.0 0.500 0.7241 -80.1 3.120 120.2 0.1102 47.5 0.8161 -25.2 0.600 0.6771 -93.0 2.884 112.0 0.1190 42.7 0.7776 -27.9 0.700 0.6332 -104.1 2.649 104.7 0.1244 39.0 0.7430 -29.9 0.800 0.5952 -114.4 2.421 98.1 0.1285 36.2 0.7142 -31.7 0.900 0.5668 -124.4 2.231 91.9 0.1307 34.4 0.6917 -33.1 1.000 0.5390 -134.4 2.083 86.4 0.1311 33.0 0.6729 -34.5 1.100 0.5275 -144.1 1.955 81.3 0.1312 32.3 0.6559 -36.1 1.200 0.5114 -152.7 1.831 76.5 0.1309 32.1 0.6423 -37.7 1.300 0.5030 -160.1 1.721 72.4 0.1308 32.8 0.6295 -39.0 1.400 0.4981 -168.0 1.621 68.3 0.1295 33.6 0.6203 -40.7 1.500 0.4975 -175.0 1.547 64.5 0.1298 35.4 0.6099 -42.1 1.600 0.4949 178.1 1.456 60.4 0.1306 37.0 0.6024 -43.6 1.700 0.4950 171.6 1.394 57.0 0.1321 39.6 0.5918 -45.4 1.800 0.4968 165.1 1.338 53.8 0.1349 41.5 0.5874 -47.0 1.900 0.5039 159.7 1.287 50.3 0.1381 44.3 0.5822 -49.2 2.000 0.5054 154.3 1.230 47.3 0.1434 46.5 0.5753 -51.0 2.200 0.5228 144.5 1.135 41.5 0.1558 51.0 0.5661 -55.3 2.400 0.5373 135.1 1.068 36.1 0.1733 54.6 0.5515 -60.4 2.600 0.5545 126.2 0.997 31.5 0.1944 56.5 0.5402 -65.3 2.800 0.5693 119.4 0.943 27.5 0.2190 57.6 0.5271 -71.6 3.000 0.5877 112.7 0.890 23.4 0.2466 57.9 0.5161 -77.8 3.500 0.6312 98.9 0.788 15.6 0.3239 54.2 0.4881 -97.3 4.000 0.6654 88.6 0.719 9.2 0.4027 46.6 0.4577 -121.6 4.500 0.6826 80.0 0.670 4.0 0.4702 37.3 0.4412 -147.5 5.000 0.6991 71.9 0.613 2.1 0.5031 30.1 0.4032 -164.0 5.500 0.6962 66.8 0.627 -1.5 0.5703 20.9 0.4766 171.5 6.000 0.6945 61.9 0.621 -5.4 0.6056 12.4 0.5072 152.2 ! ! SIEMENS AG Semiconductor Group, Munich