! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 8 V IC = 1 mA ! Common Emitter S-Parameters: May 1997 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9707 -0.7 3.375 179.5 0.0012 91.2 0.9981 -0.3 0.020 0.9651 -1.3 3.434 178.7 0.0033 93.3 0.9999 -0.8 0.050 0.9662 -3.5 3.400 177.1 0.0063 86.5 0.9968 -1.6 0.100 0.9711 -6.9 3.397 174.4 0.0129 85.5 0.9931 -3.4 0.150 0.9668 -10.6 3.392 171.5 0.0188 84.2 0.9956 -5.0 0.200 0.9656 -13.9 3.383 168.4 0.0251 81.0 0.9922 -6.7 0.250 0.9603 -17.4 3.322 165.8 0.0314 79.2 0.9900 -8.3 0.300 0.9553 -20.7 3.329 162.6 0.0373 76.6 0.9836 -9.8 0.400 0.9412 -27.3 3.300 157.0 0.0490 72.3 0.9750 -13.0 0.500 0.9225 -34.2 3.241 151.2 0.0600 67.8 0.9634 -16.2 0.600 0.9092 -40.3 3.151 145.5 0.0705 63.9 0.9487 -19.0 0.700 0.8865 -46.6 3.064 141.1 0.0791 59.7 0.9347 -21.9 0.800 0.8680 -52.7 2.978 135.5 0.0874 56.3 0.9179 -24.5 0.900 0.8427 -58.8 2.918 131.0 0.0957 52.4 0.9017 -27.1 1.000 0.8227 -64.3 2.817 126.5 0.1021 49.2 0.8842 -29.7 1.100 0.8061 -69.5 2.708 122.2 0.1079 45.9 0.8693 -31.8 1.200 0.7891 -75.0 2.620 117.9 0.1139 43.0 0.8557 -34.2 1.300 0.7686 -79.9 2.530 114.1 0.1188 40.3 0.8404 -36.1 1.400 0.7545 -84.9 2.444 110.0 0.1223 37.6 0.8267 -38.2 1.500 0.7354 -89.8 2.379 106.2 0.1260 35.3 0.8128 -40.1 1.600 0.7199 -94.2 2.302 102.6 0.1291 33.4 0.8027 -41.8 1.700 0.7047 -99.4 2.248 99.0 0.1306 31.2 0.7861 -43.6 1.800 0.6859 -103.4 2.162 95.7 0.1333 29.4 0.7770 -45.2 1.900 0.6802 -106.7 2.085 92.7 0.1345 27.2 0.7684 -46.9 2.000 0.6651 -110.7 2.026 89.0 0.1375 25.9 0.7623 -48.3 2.200 0.6410 -118.1 1.916 83.1 0.1396 22.4 0.7491 -51.6 2.400 0.6238 -124.6 1.775 77.7 0.1404 20.0 0.7353 -54.4 2.600 0.6079 -130.7 1.695 72.4 0.1414 17.9 0.7261 -57.1 2.800 0.5971 -136.5 1.597 67.7 0.1425 16.0 0.7204 -59.8 3.000 0.5858 -142.4 1.521 62.7 0.1421 14.1 0.7148 -62.6 3.500 0.5572 -155.1 1.364 51.5 0.1423 11.0 0.7088 -69.1 4.000 0.5439 -166.2 1.232 41.4 0.1417 8.6 0.7095 -76.0 4.500 0.5294 -177.9 1.127 31.9 0.1407 7.4 0.7138 -83.2 5.000 0.5195 171.1 1.040 22.7 0.1404 6.9 0.7211 -90.6 5.500 0.5143 160.1 0.964 13.7 0.1416 7.3 0.7263 -98.4 6.000 0.5121 149.4 0.895 6.0 0.1445 8.0 0.7277 -106.1 ! ! SIEMENS AG Semiconductor Group, Munich