! SIEMENS Small Signal Semiconductors ! BF840 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.5 V IC = 15 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 0.6149 -137.9 6.963 115.3 0.0147 30.4 0.6814 -9.3 0.020 0.6621 -157.9 3.812 98.7 0.0163 21.5 0.6406 -7.6 0.050 0.6830 -171.1 1.559 79.9 0.0175 21.1 0.6189 -8.1 0.100 0.6983 -176.5 0.739 60.9 0.0190 30.7 0.5963 -11.8 0.150 0.7134 -179.7 0.448 46.8 0.0211 40.2 0.5733 -15.5 0.200 0.7219 177.7 0.301 36.4 0.0237 48.6 0.5508 -18.5 0.250 0.7308 175.3 0.215 29.3 0.0268 55.9 0.5306 -21.0 0.300 0.7373 172.9 0.160 26.3 0.0303 62.1 0.5133 -23.1 0.400 0.7448 168.2 0.101 29.0 0.0390 71.3 0.4881 -27.0 0.500 0.7510 164.5 0.075 39.5 0.0492 77.1 0.4697 -30.7 0.600 0.7549 160.4 0.072 55.0 0.0608 80.9 0.4541 -34.6 0.700 0.7581 156.5 0.077 68.2 0.0739 83.3 0.4405 -38.6 0.800 0.7630 152.7 0.085 72.8 0.0875 84.2 0.4278 -42.6 0.900 0.7650 149.2 0.101 76.9 0.1021 84.5 0.4156 -46.9 1.000 0.7669 145.5 0.117 79.2 0.1175 84.2 0.4033 -51.0 1.100 0.7688 142.0 0.133 80.0 0.1333 83.6 0.3918 -55.4 1.200 0.7729 138.4 0.150 80.7 0.1498 82.5 0.3803 -59.7 1.300 0.7705 135.1 0.165 79.1 0.1664 81.1 0.3686 -64.1 1.400 0.7723 132.1 0.186 78.5 0.1836 79.7 0.3578 -68.5 1.500 0.7725 128.6 0.203 76.6 0.2003 77.9 0.3474 -72.9 1.600 0.7707 125.6 0.219 75.0 0.2175 76.1 0.3360 -77.4 1.700 0.7645 122.8 0.235 73.3 0.2347 74.3 0.3264 -81.8 1.800 0.7637 119.8 0.255 72.0 0.2516 72.3 0.3168 -86.4 1.900 0.7632 117.1 0.271 69.9 0.2686 70.3 0.3065 -91.0 2.000 0.7582 113.9 0.286 69.0 0.2851 68.4 0.2989 -95.4 2.200 0.7486 108.4 0.318 63.8 0.3174 64.4 0.2825 -104.8 2.400 0.7442 103.4 0.349 60.0 0.3481 60.1 0.2691 -114.1 2.600 0.7386 98.5 0.380 55.8 0.3766 56.0 0.2579 -123.6 2.800 0.7290 94.2 0.407 51.7 0.4030 52.0 0.2498 -133.1 3.000 0.7180 89.9 0.425 48.0 0.4272 48.1 0.2440 -142.8 ! ! SIEMENS AG Semiconductor Group, Munich