! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 1.75 V IC = 6 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 0.7991 -2.5 15.379 177.7 0.0015 92.9 0.9888 -1.0 0.020 0.7933 -4.9 15.301 175.3 0.0032 77.1 0.9871 -2.2 0.050 0.7854 -11.7 15.132 168.8 0.0084 84.1 0.9771 -5.3 0.100 0.7484 -23.1 14.529 158.4 0.0160 78.7 0.9485 -10.0 0.150 0.6937 -33.4 13.609 147.9 0.0230 72.8 0.9045 -14.1 0.200 0.6385 -42.3 12.586 140.0 0.0290 70.5 0.8609 -16.9 0.250 0.5769 -51.0 11.591 132.2 0.0341 67.4 0.8182 -19.1 0.300 0.5225 -58.0 10.579 126.0 0.0384 66.5 0.7776 -20.6 0.400 0.4309 -69.4 8.888 116.7 0.0466 64.3 0.7178 -22.2 0.500 0.3577 -79.2 7.537 108.5 0.0530 63.6 0.6743 -23.1 0.600 0.2989 -88.7 6.578 102.2 0.0600 63.9 0.6419 -23.5 0.700 0.2568 -96.9 5.800 96.9 0.0662 64.6 0.6193 -23.8 0.800 0.2201 -105.2 5.160 92.3 0.0733 64.2 0.6032 -24.0 0.900 0.1888 -111.8 4.649 88.3 0.0800 64.8 0.5909 -24.5 1.000 0.1658 -120.6 4.252 84.6 0.0866 65.2 0.5816 -25.1 1.100 0.1464 -131.0 3.923 81.4 0.0938 65.4 0.5734 -25.8 1.200 0.1331 -141.6 3.626 78.0 0.1009 65.8 0.5669 -26.5 1.300 0.1210 -150.3 3.363 75.2 0.1081 65.6 0.5608 -27.3 1.400 0.1133 -163.8 3.142 72.4 0.1149 65.7 0.5561 -28.2 1.500 0.1105 -173.1 2.973 69.7 0.1223 65.7 0.5514 -29.2 1.600 0.1146 174.5 2.799 66.9 0.1300 65.5 0.5476 -30.2 1.700 0.1157 165.1 2.656 64.4 0.1376 65.4 0.5421 -31.3 1.800 0.1233 155.1 2.536 62.1 0.1454 64.9 0.5391 -32.6 1.900 0.1302 148.9 2.428 59.6 0.1534 64.7 0.5347 -33.8 2.000 0.1357 143.3 2.317 57.2 0.1611 64.2 0.5311 -35.1 2.200 0.1520 132.5 2.136 52.7 0.1779 63.4 0.5211 -37.9 2.400 0.1757 123.2 1.999 48.2 0.1946 62.3 0.5111 -40.8 2.600 0.2008 115.6 1.873 44.1 0.2120 61.1 0.4983 -44.0 2.800 0.2243 110.7 1.775 40.3 0.2296 59.7 0.4877 -47.5 3.000 0.2477 107.0 1.682 36.1 0.2476 58.2 0.4729 -51.2 3.500 0.3147 98.9 1.494 26.8 0.2949 53.9 0.4351 -62.4 4.000 0.3713 93.0 1.365 17.8 0.3441 48.9 0.3937 -76.7 4.500 0.4310 87.9 1.259 9.6 0.3946 43.1 0.3544 -93.5 5.000 0.4765 82.7 1.168 1.5 0.4447 36.9 0.3252 -112.6 5.500 0.5249 77.7 1.076 -5.8 0.4913 30.1 0.3090 -134.5 6.000 0.5593 72.3 1.002 -12.4 0.5339 22.9 0.3092 -156.4 ! ! SIEMENS AG Semiconductor Group, Munich