! SIEMENS Small Signal Semiconductors ! BF840 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 6 V IC = 20 mA ! Common Emitter S-Parameters: January 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.5326 -113.6 11.042 129.4 0.0036 43.4 0.9059 -2.6 0.020 0.5943 -143.0 6.667 111.3 0.0045 30.8 0.8865 -2.5 0.050 0.6267 -164.0 2.922 95.1 0.0049 32.5 0.8769 -2.7 0.100 0.6491 -171.9 1.515 83.5 0.0058 46.9 0.8731 -4.3 0.150 0.6697 -175.8 1.018 74.6 0.0071 61.9 0.8708 -6.0 0.200 0.6864 -178.8 0.755 66.4 0.0084 73.4 0.8667 -7.7 0.250 0.6993 178.5 0.591 59.4 0.0104 83.5 0.8633 -9.5 0.300 0.7091 175.7 0.480 52.8 0.0123 91.5 0.8584 -11.1 0.400 0.7211 170.7 0.334 42.1 0.0182 102.6 0.8509 -14.6 0.500 0.7337 166.3 0.242 34.2 0.0253 108.5 0.8424 -17.9 0.600 0.7395 162.0 0.178 28.5 0.0339 112.5 0.8354 -21.2 0.700 0.7460 157.7 0.133 26.4 0.0445 114.2 0.8265 -24.5 0.800 0.7559 153.9 0.100 28.1 0.0554 114.7 0.8178 -27.8 0.900 0.7614 150.0 0.076 37.7 0.0681 114.4 0.8081 -31.3 1.000 0.7626 146.1 0.064 55.8 0.0818 113.5 0.7975 -34.7 1.100 0.7677 142.3 0.066 75.3 0.0965 112.2 0.7881 -38.1 1.200 0.7726 138.5 0.079 89.3 0.1119 110.4 0.7786 -41.5 1.300 0.7740 135.1 0.098 97.3 0.1280 108.6 0.7659 -44.9 1.400 0.7745 131.8 0.119 98.5 0.1451 106.4 0.7548 -48.3 1.500 0.7781 128.2 0.137 99.3 0.1624 104.1 0.7418 -51.8 1.600 0.7750 125.0 0.165 98.3 0.1802 101.6 0.7282 -55.3 1.700 0.7723 121.5 0.182 97.1 0.1989 99.1 0.7156 -58.8 1.800 0.7759 118.8 0.205 96.3 0.2175 96.7 0.7022 -62.3 1.900 0.7709 115.7 0.223 93.4 0.2368 94.2 0.6865 -65.8 2.000 0.7703 112.5 0.247 92.3 0.2549 91.5 0.6728 -69.2 2.200 0.7605 106.5 0.284 86.2 0.2923 86.3 0.6441 -76.3 2.400 0.7537 100.8 0.321 80.9 0.3294 80.9 0.6153 -83.2 2.600 0.7456 95.9 0.364 75.6 0.3640 75.7 0.5864 -90.3 2.800 0.7369 91.2 0.398 70.6 0.3974 70.8 0.5603 -97.3 3.000 0.7228 86.6 0.427 66.0 0.4276 65.8 0.5326 -104.4 ! ! SIEMENS AG Semiconductor Group, Munich