! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 0.5 V IC = 15 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 0.4626 -14.2 18.357 174.0 0.0042 78.5 0.7864 -4.8 0.020 0.4662 -28.4 18.405 167.4 0.0091 77.9 0.7793 -9.9 0.050 0.4994 -63.4 16.422 151.2 0.0198 63.1 0.7072 -23.2 0.100 0.5506 -102.7 12.854 131.0 0.0304 48.1 0.5659 -37.3 0.150 0.5844 -124.7 9.975 118.0 0.0354 39.0 0.4551 -44.4 0.200 0.5959 -138.1 7.989 109.7 0.0383 34.1 0.3834 -47.6 0.250 0.6070 -146.9 6.612 103.7 0.0399 32.5 0.3364 -49.0 0.300 0.6131 -153.4 5.608 98.4 0.0413 31.4 0.3029 -49.6 0.400 0.6206 -162.3 4.299 91.2 0.0437 31.3 0.2636 -50.3 0.500 0.6235 -168.1 3.473 85.6 0.0456 31.9 0.2433 -51.1 0.600 0.6288 -172.0 2.914 80.8 0.0474 33.5 0.2313 -52.4 0.700 0.6282 -176.0 2.504 76.7 0.0499 34.7 0.2237 -54.2 0.800 0.6330 -178.4 2.193 72.7 0.0521 36.6 0.2199 -56.5 0.900 0.6262 178.7 1.958 69.4 0.0550 38.1 0.2191 -58.9 1.000 0.6279 176.5 1.772 65.7 0.0575 39.6 0.2190 -61.4 1.100 0.6398 174.7 1.615 62.5 0.0602 40.9 0.2204 -64.2 1.200 0.6317 172.3 1.482 59.1 0.0636 41.6 0.2220 -67.2 1.300 0.6380 170.4 1.368 56.0 0.0668 42.8 0.2258 -70.0 1.400 0.6414 169.0 1.261 52.8 0.0694 43.6 0.2290 -73.2 1.500 0.6393 167.6 1.182 49.8 0.0722 44.4 0.2333 -75.7 1.600 0.6398 166.4 1.110 47.2 0.0756 45.1 0.2398 -78.7 1.700 0.6366 164.5 1.049 44.0 0.0786 45.5 0.2442 -81.3 1.800 0.6389 163.0 0.987 42.1 0.0817 46.1 0.2521 -83.9 1.900 0.6430 161.9 0.938 39.1 0.0846 46.0 0.2563 -86.4 2.000 0.6411 160.5 0.892 36.3 0.0887 46.6 0.2647 -89.0 2.200 0.6434 157.9 0.811 31.6 0.0954 46.7 0.2751 -94.6 2.400 0.6467 155.5 0.740 27.2 0.1023 46.7 0.2874 -99.2 2.600 0.6429 153.2 0.681 22.6 0.1091 46.7 0.2985 -103.4 2.800 0.6490 150.2 0.632 18.8 0.1170 46.7 0.3130 -107.6 3.000 0.6470 147.4 0.583 14.7 0.1244 45.9 0.3221 -112.2 3.500 0.6465 140.9 0.491 6.5 0.1440 44.2 0.3526 -122.6 4.000 0.6479 134.1 0.417 0.1 0.1651 41.0 0.3751 -132.8 4.500 0.6479 126.2 0.364 -5.2 0.1857 37.2 0.3944 -142.7 5.000 0.6408 119.1 0.317 -7.6 0.2046 32.9 0.4095 -152.3 5.500 0.6391 111.2 0.283 -9.3 0.2224 28.5 0.4183 -161.3 6.000 0.6380 104.1 0.265 -8.3 0.2391 24.0 0.4248 -169.4 ! ! SIEMENS AG Semiconductor Group, Munich