! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1 V IC = 15 mA ! Common Emitter S-Parameters: May 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.5275 -9.3 20.810 174.4 0.0025 82.5 0.8743 -2.5 0.020 0.5185 -18.1 20.524 168.7 0.0050 77.2 0.8631 -5.3 0.050 0.4978 -42.7 19.044 153.8 0.0120 72.1 0.8176 -12.2 0.100 0.4413 -77.1 15.373 134.4 0.0198 64.4 0.7149 -18.7 0.150 0.4001 -102.2 12.197 120.7 0.0253 60.0 0.6309 -21.0 0.200 0.3852 -119.0 9.975 112.2 0.0294 59.9 0.5807 -21.1 0.250 0.3689 -132.5 8.270 105.6 0.0334 59.2 0.5487 -20.6 0.300 0.3642 -142.8 7.050 100.7 0.0370 61.1 0.5248 -20.1 0.400 0.3526 -156.9 5.474 93.6 0.0443 63.7 0.4992 -19.4 0.500 0.3534 -167.4 4.431 87.5 0.0521 66.0 0.4860 -19.3 0.600 0.3553 -175.4 3.725 82.5 0.0608 67.4 0.4761 -19.7 0.700 0.3557 176.7 3.223 78.0 0.0687 68.5 0.4686 -20.6 0.800 0.3586 170.9 2.835 74.1 0.0777 68.8 0.4642 -21.5 0.900 0.3591 166.1 2.550 70.4 0.0865 69.4 0.4603 -22.6 1.000 0.3673 160.6 2.318 67.0 0.0950 69.7 0.4578 -24.0 1.100 0.3729 156.2 2.125 63.8 0.1045 69.7 0.4539 -25.5 1.200 0.3832 151.4 1.964 60.5 0.1136 69.7 0.4501 -26.9 1.300 0.3885 147.4 1.814 57.5 0.1232 69.2 0.4467 -28.5 1.400 0.3949 142.8 1.698 54.6 0.1325 69.0 0.4422 -30.3 1.500 0.4009 140.3 1.605 51.8 0.1421 68.4 0.4384 -32.0 1.600 0.4081 136.1 1.505 48.8 0.1518 67.9 0.4337 -33.9 1.700 0.4151 132.5 1.435 46.1 0.1616 67.4 0.4292 -35.6 1.800 0.4244 129.5 1.373 43.8 0.1714 66.7 0.4263 -37.7 1.900 0.4346 127.1 1.314 41.2 0.1816 66.0 0.4210 -39.7 2.000 0.4447 123.7 1.251 38.6 0.1914 65.2 0.4159 -41.8 2.200 0.4608 117.8 1.150 33.8 0.2132 63.5 0.4010 -46.3 2.400 0.4775 112.3 1.075 29.2 0.2341 61.7 0.3875 -50.7 2.600 0.5019 107.2 1.004 25.1 0.2559 59.5 0.3696 -55.9 2.800 0.5170 102.3 0.946 21.6 0.2775 57.4 0.3552 -61.5 3.000 0.5394 98.1 0.888 17.8 0.2999 54.9 0.3331 -67.7 3.500 0.5860 88.5 0.779 10.2 0.3553 48.4 0.2842 -87.0 4.000 0.6233 80.5 0.695 4.6 0.4071 41.4 0.2448 -112.2 4.500 0.6481 73.8 0.640 0.0 0.4543 34.0 0.2301 -141.0 5.000 0.6614 67.9 0.603 -3.1 0.4964 26.6 0.2410 -169.4 5.500 0.6741 62.4 0.570 -5.3 0.5301 19.2 0.2736 166.4 6.000 0.6789 57.7 0.563 -7.5 0.5574 11.8 0.3120 147.6 ! ! SIEMENS AG Semiconductor Group, Munich