! SIEMENS Small Signal Semiconductors ! BF840 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 5 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 0.6538 -34.4 18.133 160.3 0.0020 78.2 0.9811 -1.8 0.020 0.6294 -62.9 15.838 144.3 0.0037 62.0 0.9653 -3.0 0.050 0.5807 -112.6 9.999 117.0 0.0057 49.5 0.9290 -4.0 0.100 0.5654 -143.1 5.658 98.7 0.0070 50.2 0.9119 -4.7 0.150 0.5708 -155.4 3.878 89.2 0.0082 59.2 0.9083 -5.9 0.200 0.5788 -162.7 2.917 82.1 0.0096 65.4 0.9070 -7.3 0.250 0.5906 -167.7 2.331 76.4 0.0109 74.4 0.9060 -8.8 0.300 0.6006 -171.8 1.933 71.3 0.0124 81.7 0.9044 -10.3 0.400 0.6200 -178.6 1.424 62.6 0.0166 94.9 0.9040 -13.4 0.500 0.6349 176.3 1.120 54.8 0.0221 104.9 0.9015 -16.7 0.600 0.6499 171.1 0.911 48.1 0.0295 111.6 0.8993 -20.2 0.700 0.6646 166.7 0.766 41.7 0.0391 115.7 0.8954 -23.5 0.800 0.6787 162.3 0.651 35.9 0.0496 117.9 0.8909 -27.0 0.900 0.6917 158.1 0.560 30.7 0.0619 118.8 0.8852 -30.5 1.000 0.7001 154.1 0.487 26.0 0.0759 118.3 0.8797 -34.1 1.100 0.7120 149.9 0.421 21.6 0.0913 117.6 0.8724 -37.8 1.200 0.7260 145.9 0.360 18.8 0.1076 115.9 0.8653 -41.4 1.300 0.7309 142.1 0.310 16.6 0.1249 114.0 0.8549 -45.2 1.400 0.7426 138.4 0.267 16.5 0.1437 111.9 0.8456 -48.9 1.500 0.7471 134.6 0.228 17.2 0.1624 109.4 0.8351 -52.7 1.600 0.7516 131.0 0.195 21.1 0.1824 106.7 0.8225 -56.6 1.700 0.7575 127.3 0.170 25.3 0.2033 104.0 0.8108 -60.4 1.800 0.7596 123.9 0.153 35.9 0.2237 101.2 0.7966 -64.3 1.900 0.7633 120.7 0.143 45.8 0.2451 98.3 0.7797 -68.2 2.000 0.7620 117.0 0.151 57.4 0.2654 95.3 0.7656 -72.0 2.200 0.7592 110.5 0.185 69.6 0.3077 89.4 0.7331 -79.8 2.400 0.7542 104.1 0.233 73.4 0.3480 83.5 0.6996 -87.4 2.600 0.7483 98.4 0.291 73.3 0.3862 77.6 0.6655 -95.2 2.800 0.7376 93.0 0.340 70.4 0.4217 72.0 0.6338 -102.8 3.000 0.7272 88.0 0.383 67.1 0.4533 66.5 0.5998 -110.4 ! ! SIEMENS AG Semiconductor Group, Munich