! SIEMENS Small Signal Semiconductors ! BFR181W ! Si NPN RF Bipolar Junction Transistor in SOT323 ! VCE = 8 V IC = 15 mA ! Common Emitter S-Parameters: September 1992 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.100 0.6481 -32.2 23.007 153.6 0.0139 75.1 0.9038 -13.6 0.150 0.5870 -45.7 20.816 142.8 0.0197 71.2 0.8408 -18.2 0.200 0.5270 -57.1 18.595 134.0 0.0239 68.1 0.7801 -21.2 0.250 0.4747 -67.1 16.585 127.0 0.0280 66.3 0.7257 -23.1 0.300 0.4290 -75.4 14.809 121.2 0.0312 65.3 0.6834 -24.1 0.400 0.3563 -90.3 12.089 112.2 0.0375 65.4 0.6190 -24.9 0.500 0.3103 -102.2 10.118 105.8 0.0433 66.0 0.5777 -24.7 0.600 0.2752 -112.7 8.668 100.8 0.0493 67.0 0.5495 -24.6 0.700 0.2545 -121.8 7.543 96.5 0.0549 67.7 0.5306 -24.4 0.800 0.2363 -130.7 6.702 92.9 0.0608 68.6 0.5167 -24.5 0.900 0.2243 -138.1 5.995 89.8 0.0672 69.3 0.5067 -24.5 1.000 0.2166 -145.8 5.460 86.9 0.0731 69.7 0.4990 -24.9 1.200 0.2047 -157.8 4.597 82.0 0.0855 70.4 0.4861 -25.7 1.400 0.2054 -168.3 3.987 77.5 0.0976 70.8 0.4790 -26.9 1.500 0.2036 -172.5 3.739 75.4 0.1037 70.8 0.4758 -27.6 1.600 0.2041 -177.4 3.528 73.4 0.1102 70.8 0.4741 -28.3 1.800 0.2122 175.2 3.165 69.7 0.1230 70.7 0.4704 -30.0 2.000 0.2116 168.5 2.873 66.1 0.1351 70.6 0.4683 -31.9 2.200 0.2149 162.1 2.638 62.7 0.1479 70.2 0.4688 -33.8 2.400 0.2229 158.3 2.451 59.6 0.1610 69.9 0.4691 -36.0 2.500 0.2220 155.4 2.353 57.8 0.1672 69.8 0.4689 -36.8 3.000 0.2449 144.0 2.021 50.3 0.2007 68.3 0.4721 -42.9 3.500 0.2602 135.0 1.788 43.5 0.2365 66.3 0.4721 -50.0 4.000 0.2968 126.5 1.620 36.5 0.2723 64.0 0.4697 -56.8 4.500 0.3211 118.0 1.477 30.4 0.3080 61.3 0.4624 -64.7 5.000 0.3507 112.8 1.378 24.3 0.3448 58.7 0.4568 -71.9 5.500 0.3682 105.1 1.278 18.8 0.3841 56.1 0.4554 -79.2 6.000 0.3902 99.3 1.198 13.8 0.4280 53.0 0.4631 -86.6 ! ! SIEMENS AG Semiconductor Group, Munich