! SIEMENS Small Signal Semiconductors ! BF840 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1 V IC = 10 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 0.5989 -120.2 7.203 119.7 0.0211 34.1 0.6614 -12.4 0.020 0.6246 -147.7 4.068 101.7 0.0243 22.0 0.5981 -10.4 0.050 0.6398 -166.7 1.685 82.1 0.0257 18.4 0.5662 -9.8 0.100 0.6522 -174.0 0.811 63.6 0.0276 24.0 0.5455 -13.5 0.150 0.6653 -177.5 0.502 49.9 0.0293 30.9 0.5234 -17.6 0.200 0.6778 179.7 0.344 39.6 0.0313 37.1 0.5008 -21.1 0.250 0.6879 177.5 0.252 32.5 0.0338 43.5 0.4803 -24.0 0.300 0.6957 175.0 0.193 28.4 0.0363 49.4 0.4621 -26.5 0.400 0.7071 170.3 0.128 27.6 0.0433 59.9 0.4349 -31.0 0.500 0.7164 166.4 0.097 35.0 0.0526 67.6 0.4145 -35.3 0.600 0.7237 162.3 0.086 47.0 0.0637 73.2 0.3974 -39.7 0.700 0.7299 158.3 0.088 57.0 0.0770 76.6 0.3830 -44.0 0.800 0.7389 154.4 0.095 63.4 0.0910 78.5 0.3701 -48.5 0.900 0.7417 150.9 0.108 69.5 0.1060 79.4 0.3574 -53.2 1.000 0.7442 147.1 0.121 72.9 0.1219 79.5 0.3456 -57.9 1.100 0.7492 143.4 0.136 73.7 0.1383 79.1 0.3340 -62.7 1.200 0.7527 139.9 0.155 74.9 0.1552 78.2 0.3231 -67.6 1.300 0.7498 136.6 0.168 74.9 0.1725 77.0 0.3125 -72.5 1.400 0.7556 133.5 0.192 73.8 0.1900 75.6 0.3022 -77.5 1.500 0.7561 130.2 0.207 72.1 0.2067 74.0 0.2926 -82.4 1.600 0.7534 127.1 0.226 71.2 0.2240 72.2 0.2830 -87.4 1.700 0.7524 124.1 0.240 68.9 0.2414 70.4 0.2750 -92.5 1.800 0.7489 121.1 0.259 68.2 0.2580 68.5 0.2669 -97.5 1.900 0.7489 118.3 0.276 65.8 0.2751 66.6 0.2586 -102.7 2.000 0.7462 115.3 0.291 65.6 0.2915 64.8 0.2528 -107.6 2.200 0.7361 109.8 0.323 60.2 0.3232 60.7 0.2410 -117.9 2.400 0.7315 104.7 0.352 56.2 0.3533 56.7 0.2325 -128.1 2.600 0.7252 99.6 0.380 52.4 0.3805 52.6 0.2264 -138.4 2.800 0.7186 95.3 0.409 48.5 0.4061 48.8 0.2239 -148.3 3.000 0.7110 91.2 0.430 45.2 0.4292 45.0 0.2227 -158.1 ! ! SIEMENS AG Semiconductor Group, Munich