! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2.5 V IC = 0.1 mA ! Common Emitter S-Parameters: October 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9938 -1.1 0.443 -179.8 0.0034 92.8 0.9992 -0.3 0.020 0.9854 -2.0 0.436 176.6 0.0067 92.7 0.9890 -0.6 0.050 0.9927 -5.5 0.442 173.0 0.0174 85.6 0.9977 -1.7 0.100 0.9962 -11.1 0.442 168.0 0.0356 82.7 0.9999 -3.3 0.150 0.9866 -16.7 0.440 159.8 0.0523 78.6 0.9965 -4.9 0.200 0.9869 -22.4 0.447 155.2 0.0694 75.4 0.9947 -6.5 0.250 0.9801 -28.3 0.448 148.4 0.0858 71.0 0.9909 -8.2 0.300 0.9677 -33.3 0.446 142.4 0.1009 68.2 0.9873 -9.8 0.400 0.9522 -44.5 0.445 130.8 0.1298 60.8 0.9772 -12.8 0.500 0.9263 -55.4 0.444 119.0 0.1553 53.9 0.9675 -15.9 0.600 0.9152 -65.8 0.445 108.9 0.1770 47.4 0.9571 -18.7 0.700 0.8912 -76.0 0.447 99.5 0.1941 41.3 0.9464 -21.4 0.800 0.8698 -86.2 0.440 91.2 0.2078 35.3 0.9332 -24.0 0.900 0.8463 -95.5 0.437 82.4 0.2165 30.0 0.9233 -26.5 1.000 0.8275 -105.1 0.433 75.4 0.2212 24.7 0.9145 -28.9 1.100 0.8111 -115.1 0.431 68.3 0.2237 19.7 0.9061 -31.4 1.200 0.7981 -124.0 0.420 61.9 0.2224 14.9 0.8975 -34.1 1.300 0.7887 -132.6 0.409 56.6 0.2190 10.9 0.8912 -36.2 1.400 0.7773 -141.0 0.396 51.4 0.2113 6.9 0.8865 -38.7 1.500 0.7713 -149.1 0.390 47.2 0.2018 3.7 0.8821 -41.1 1.600 0.7648 -157.8 0.365 42.4 0.1913 0.4 0.8785 -43.7 1.700 0.7597 -165.7 0.360 39.0 0.1772 -1.7 0.8700 -46.2 1.800 0.7583 -172.8 0.346 36.1 0.1629 -3.2 0.8708 -48.5 1.900 0.7633 179.9 0.335 33.3 0.1460 -4.0 0.8684 -51.6 2.000 0.7599 172.7 0.319 31.6 0.1309 -3.7 0.8640 -54.5 2.200 0.7634 159.6 0.287 29.5 0.0968 4.3 0.8618 -60.4 2.400 0.7730 147.0 0.267 30.1 0.0782 28.3 0.8499 -67.8 2.600 0.7781 135.7 0.251 33.5 0.0918 56.4 0.8436 -74.6 2.800 0.7858 125.5 0.253 38.7 0.1312 70.3 0.8263 -83.2 3.000 0.7889 116.4 0.268 43.5 0.1826 73.4 0.8195 -91.8 3.500 0.7878 97.8 0.343 46.6 0.3122 64.9 0.7683 -116.4 4.000 0.7677 84.2 0.422 42.2 0.4179 53.3 0.6945 -138.3 4.500 0.7427 74.8 0.511 32.6 0.5137 39.3 0.6930 -162.7 5.000 0.7223 67.9 0.566 22.8 0.5678 27.2 0.6715 176.3 5.500 0.7177 62.8 0.597 14.5 0.6043 16.9 0.6581 157.5 6.000 0.6939 58.1 0.621 6.4 0.6278 7.3 0.6528 141.3 ! ! SIEMENS AG Semiconductor Group, Munich