! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 5 V IC = 1.2 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 0.9637 -0.7 4.020 179.5 0.0013 77.9 0.9971 -0.3 0.020 0.9583 -1.5 4.098 178.6 0.0028 93.7 0.9999 -0.8 0.050 0.9594 -3.9 3.992 177.0 0.0064 89.3 0.9959 -1.8 0.100 0.9619 -7.8 4.033 173.9 0.0129 86.6 0.9919 -3.6 0.150 0.9587 -11.8 3.990 170.8 0.0195 83.1 0.9945 -5.4 0.200 0.9497 -15.4 3.951 167.4 0.0255 80.7 0.9894 -7.2 0.250 0.9490 -19.4 3.959 164.5 0.0320 78.6 0.9873 -9.0 0.300 0.9399 -23.2 3.953 161.0 0.0378 75.8 0.9793 -10.7 0.400 0.9258 -30.4 3.837 155.0 0.0496 71.0 0.9682 -14.1 0.500 0.9031 -38.0 3.775 148.8 0.0601 66.1 0.9531 -17.3 0.600 0.8856 -45.0 3.689 142.7 0.0700 61.9 0.9348 -20.4 0.700 0.8625 -52.1 3.558 138.1 0.0789 57.5 0.9162 -23.3 0.800 0.8382 -58.4 3.407 132.5 0.0863 53.8 0.8959 -26.0 0.900 0.8152 -64.6 3.293 127.9 0.0939 50.2 0.8790 -28.6 1.000 0.7897 -70.5 3.176 123.1 0.1000 46.8 0.8601 -31.0 1.100 0.7740 -76.3 3.063 118.8 0.1047 43.8 0.8422 -33.1 1.200 0.7530 -82.0 2.949 114.3 0.1097 40.8 0.8265 -35.4 1.300 0.7315 -87.5 2.837 110.5 0.1137 38.2 0.8092 -37.3 1.400 0.7165 -92.6 2.727 106.4 0.1166 35.7 0.7945 -39.4 1.500 0.6997 -97.3 2.635 102.7 0.1194 33.5 0.7804 -41.1 1.600 0.6832 -101.9 2.525 99.3 0.1217 31.8 0.7690 -42.8 1.700 0.6734 -106.3 2.437 95.9 0.1239 29.7 0.7562 -44.4 1.800 0.6570 -110.9 2.344 92.6 0.1259 28.3 0.7482 -45.9 1.900 0.6471 -114.4 2.268 89.6 0.1268 26.3 0.7389 -47.5 2.000 0.6315 -118.8 2.204 86.0 0.1290 25.1 0.7326 -49.0 2.200 0.6132 -125.2 2.046 80.3 0.1307 22.0 0.7198 -52.1 2.400 0.5988 -132.4 1.910 75.1 0.1308 20.0 0.7068 -54.8 2.600 0.5864 -137.7 1.801 70.1 0.1317 18.3 0.6985 -57.5 2.800 0.5744 -144.0 1.707 65.5 0.1327 16.9 0.6937 -60.1 3.000 0.5663 -149.1 1.609 60.6 0.1321 15.4 0.6892 -62.8 3.500 0.5438 -161.5 1.435 49.9 0.1335 13.2 0.6857 -69.3 4.000 0.5325 -172.9 1.299 39.8 0.1336 11.9 0.6864 -76.2 4.500 0.5206 175.7 1.187 30.5 0.1349 11.2 0.6932 -83.4 5.000 0.5104 165.5 1.083 21.6 0.1364 11.1 0.7024 -90.8 5.500 0.5075 154.6 1.006 12.8 0.1399 12.1 0.7066 -98.6 6.000 0.5074 144.1 0.934 5.0 0.1458 12.7 0.7096 -106.4 ! ! SIEMENS AG Semiconductor Group, Munich