! SIEMENS Small Signal Semiconductors ! BFR181W ! Si NPN RF Bipolar Junction Transistor in SOT323 ! VCE = 1.5 V IC = 10 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 0.6487 -39.8 17.509 151.6 0.0168 72.0 0.8817 -13.4 0.150 0.5901 -56.3 15.630 140.3 0.0231 66.6 0.8190 -17.5 0.200 0.5370 -70.6 13.817 131.2 0.0276 62.8 0.7616 -20.1 0.250 0.4925 -82.6 12.215 124.1 0.0316 60.6 0.7115 -21.6 0.300 0.4550 -92.8 10.842 118.2 0.0347 59.6 0.6741 -22.3 0.400 0.4027 -110.5 8.767 109.1 0.0401 59.2 0.6193 -22.7 0.500 0.3744 -123.7 7.295 102.6 0.0454 60.3 0.5853 -22.5 0.600 0.3541 -134.4 6.229 97.3 0.0508 61.6 0.5628 -22.6 0.700 0.3424 -143.6 5.409 92.9 0.0559 63.0 0.5487 -22.7 0.800 0.3370 -151.8 4.798 89.1 0.0610 64.3 0.5380 -23.1 0.900 0.3288 -157.9 4.289 85.9 0.0669 65.5 0.5307 -23.5 1.000 0.3281 -163.4 3.902 82.8 0.0723 66.5 0.5248 -24.1 1.200 0.3261 -173.8 3.288 77.4 0.0839 68.3 0.5150 -25.7 1.400 0.3301 178.0 2.852 72.6 0.0956 69.2 0.5098 -27.5 1.500 0.3317 174.8 2.677 70.2 0.1016 69.5 0.5076 -28.6 1.600 0.3377 171.7 2.527 68.0 0.1078 70.1 0.5062 -29.6 1.800 0.3427 165.6 2.270 63.9 0.1205 70.5 0.5037 -31.8 2.000 0.3428 159.9 2.064 59.9 0.1333 70.9 0.5029 -34.3 2.200 0.3490 155.3 1.896 56.2 0.1462 71.1 0.5038 -36.8 2.400 0.3577 150.7 1.764 52.6 0.1601 71.1 0.5046 -39.5 2.500 0.3561 147.7 1.700 50.8 0.1667 71.1 0.5050 -40.7 3.000 0.3856 138.0 1.458 42.8 0.2029 70.2 0.5085 -48.0 3.500 0.3962 128.7 1.288 35.5 0.2435 68.5 0.5101 -56.3 4.000 0.4329 120.4 1.166 28.5 0.2850 65.9 0.5081 -64.6 4.500 0.4499 112.2 1.062 23.2 0.3273 62.9 0.5016 -73.8 5.000 0.4790 105.0 0.981 17.6 0.3708 59.6 0.4946 -82.6 5.500 0.4981 97.5 0.906 12.9 0.4172 56.1 0.4911 -91.5 6.000 0.5074 90.6 0.840 9.1 0.4666 52.1 0.4946 -100.1 ! ! SIEMENS AG Semiconductor Group, Munich