! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 8 V IC = 0.5 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 0.9836 -1.2 1.829 178.2 0.0023 89.8 0.9990 -0.2 0.020 0.9796 -2.6 1.845 178.0 0.0049 88.2 0.9967 -0.7 0.050 0.9759 -6.4 1.828 174.4 0.0124 86.4 0.9980 -1.8 0.100 0.9775 -13.1 1.800 170.1 0.0248 82.5 0.9981 -3.6 0.150 0.9683 -19.5 1.804 164.0 0.0369 77.5 0.9911 -5.4 0.200 0.9604 -25.6 1.783 159.5 0.0479 74.2 0.9865 -7.1 0.250 0.9517 -32.1 1.770 154.4 0.0592 70.1 0.9805 -8.9 0.300 0.9309 -38.3 1.746 149.3 0.0693 67.0 0.9721 -10.4 0.400 0.9004 -50.7 1.687 140.5 0.0871 59.7 0.9526 -13.5 0.500 0.8625 -62.5 1.594 130.8 0.1022 53.2 0.9325 -16.2 0.600 0.8291 -73.9 1.535 122.8 0.1143 47.5 0.9147 -18.8 0.700 0.7912 -84.7 1.472 115.1 0.1226 42.4 0.8941 -21.0 0.800 0.7591 -95.3 1.390 107.7 0.1283 37.7 0.8754 -23.0 0.900 0.7225 -104.9 1.314 100.9 0.1314 33.9 0.8602 -24.9 1.000 0.7007 -114.8 1.250 94.8 0.1321 30.4 0.8460 -26.5 1.100 0.6747 -124.8 1.196 88.9 0.1313 27.6 0.8332 -28.4 1.200 0.6574 -133.9 1.140 83.4 0.1287 25.2 0.8222 -30.2 1.300 0.6428 -142.2 1.087 78.6 0.1255 23.9 0.8134 -31.7 1.400 0.6279 -150.7 1.032 73.7 0.1198 23.0 0.8063 -33.4 1.500 0.6212 -159.0 1.000 69.6 0.1149 23.5 0.7981 -35.0 1.600 0.6125 -166.7 0.942 64.9 0.1093 24.1 0.7916 -36.7 1.700 0.6081 -174.4 0.910 61.4 0.1035 26.7 0.7833 -38.5 1.800 0.6062 178.3 0.877 57.7 0.0998 29.6 0.7800 -40.1 1.900 0.6081 171.3 0.844 53.8 0.0959 34.3 0.7783 -42.2 2.000 0.6094 165.3 0.810 50.7 0.0942 39.3 0.7738 -44.1 2.200 0.6184 153.2 0.751 45.0 0.0976 52.2 0.7666 -48.2 2.400 0.6264 141.8 0.701 40.0 0.1112 63.4 0.7587 -53.0 2.600 0.6392 131.5 0.656 36.1 0.1340 70.3 0.7503 -57.6 2.800 0.6531 122.6 0.619 33.0 0.1633 74.2 0.7432 -63.4 3.000 0.6665 114.4 0.589 30.1 0.1976 75.5 0.7344 -69.0 3.500 0.6941 98.0 0.535 26.6 0.2947 71.0 0.7096 -86.5 4.000 0.7108 85.8 0.523 24.6 0.3948 61.1 0.6693 -107.5 4.500 0.7035 76.4 0.538 21.5 0.4810 49.2 0.6251 -130.8 5.000 0.7065 68.5 0.536 18.7 0.5221 39.4 0.5430 -147.4 5.500 0.6903 63.1 0.586 14.1 0.5993 28.9 0.5847 -171.2 6.000 0.6756 58.9 0.614 8.3 0.6394 19.1 0.5851 168.4 ! ! SIEMENS AG Semiconductor Group, Munich