! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 3.5 V IC = 5 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 0.8372 -1.9 13.195 178.6 0.0011 91.1 0.9887 -0.6 0.020 0.8380 -3.7 13.379 177.2 0.0028 83.8 0.9983 -1.4 0.050 0.8399 -8.9 13.062 173.8 0.0062 83.4 0.9890 -3.7 0.100 0.8266 -17.8 12.984 167.6 0.0123 81.0 0.9783 -7.3 0.150 0.8194 -26.8 12.695 161.6 0.0178 76.2 0.9622 -10.8 0.200 0.7989 -35.0 12.296 155.8 0.0236 72.1 0.9419 -14.0 0.250 0.7791 -43.0 11.918 150.4 0.0283 68.4 0.9187 -17.1 0.300 0.7590 -50.7 11.502 144.8 0.0327 64.6 0.8907 -19.5 0.400 0.7128 -64.5 10.497 135.7 0.0399 58.7 0.8383 -24.0 0.500 0.6740 -77.3 9.566 127.4 0.0456 53.0 0.7881 -27.5 0.600 0.6406 -88.5 8.713 120.3 0.0498 49.1 0.7434 -30.1 0.700 0.6064 -97.9 7.931 114.9 0.0534 46.1 0.7049 -32.2 0.800 0.5835 -106.7 7.196 109.5 0.0560 44.1 0.6726 -33.9 0.900 0.5665 -114.0 6.639 105.2 0.0588 42.0 0.6479 -35.3 1.000 0.5438 -120.5 6.119 100.9 0.0608 40.8 0.6263 -36.6 1.100 0.5439 -127.1 5.680 97.2 0.0624 39.7 0.6091 -37.7 1.200 0.5266 -132.8 5.294 93.5 0.0644 39.0 0.5940 -38.9 1.300 0.5223 -137.8 4.935 90.5 0.0660 38.2 0.5812 -39.9 1.400 0.5142 -142.7 4.626 87.2 0.0672 38.3 0.5713 -41.1 1.500 0.5072 -146.4 4.359 84.4 0.0685 38.0 0.5630 -42.1 1.600 0.5065 -150.0 4.109 81.9 0.0702 38.3 0.5571 -43.3 1.700 0.5023 -153.4 3.904 79.3 0.0719 37.8 0.5503 -44.4 1.800 0.4991 -157.3 3.691 77.1 0.0735 38.1 0.5472 -45.5 1.900 0.4959 -160.0 3.523 74.6 0.0744 37.6 0.5433 -46.7 2.000 0.4951 -163.0 3.369 72.1 0.0770 38.2 0.5408 -47.9 2.200 0.4909 -168.0 3.090 67.8 0.0798 38.2 0.5376 -50.3 2.400 0.4911 -173.2 2.836 63.8 0.0829 38.5 0.5351 -52.8 2.600 0.4857 -177.0 2.645 59.8 0.0863 38.8 0.5350 -55.2 2.800 0.4872 178.3 2.471 56.2 0.0903 39.3 0.5361 -57.7 3.000 0.4850 174.6 2.315 52.3 0.0939 39.3 0.5375 -60.2 3.500 0.4796 165.8 2.022 43.6 0.1038 39.4 0.5447 -66.7 4.000 0.4822 157.3 1.803 35.0 0.1155 38.9 0.5552 -73.5 4.500 0.4805 148.4 1.627 26.6 0.1278 37.9 0.5675 -80.7 5.000 0.4810 140.2 1.478 18.6 0.1405 36.4 0.5810 -88.3 5.500 0.4817 131.8 1.357 10.5 0.1544 34.6 0.5909 -96.1 6.000 0.4905 123.3 1.256 3.4 0.1688 31.9 0.5988 -103.9 ! ! SIEMENS AG Semiconductor Group, Munich