! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3 V IC = 0.8 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 0.9698 -0.7 2.837 179.6 0.0015 96.1 0.9983 -0.3 0.020 0.9637 -1.3 2.807 178.4 0.0038 94.2 0.9907 -0.7 0.050 0.9663 -3.5 2.801 176.6 0.0088 88.9 0.9979 -1.7 0.100 0.9642 -7.2 2.832 173.2 0.0175 84.5 0.9977 -3.3 0.150 0.9615 -10.8 2.797 168.8 0.0262 81.6 0.9927 -5.2 0.200 0.9501 -14.1 2.797 165.3 0.0348 80.6 0.9874 -6.7 0.250 0.9440 -18.3 2.831 161.7 0.0427 77.8 0.9832 -8.4 0.300 0.9287 -21.6 2.784 157.9 0.0509 75.4 0.9760 -10.1 0.400 0.9095 -28.6 2.690 151.8 0.0660 71.5 0.9637 -13.1 0.500 0.8689 -35.3 2.633 144.0 0.0801 67.0 0.9438 -16.1 0.600 0.8324 -42.3 2.596 137.9 0.0926 63.1 0.9234 -18.9 0.700 0.7991 -48.5 2.507 131.9 0.1031 59.7 0.9002 -21.5 0.800 0.7609 -54.7 2.395 125.8 0.1128 56.0 0.8789 -23.8 0.900 0.7225 -60.4 2.304 120.1 0.1217 53.2 0.8606 -25.8 1.000 0.6805 -66.9 2.251 114.9 0.1278 50.5 0.8389 -27.9 1.100 0.6419 -73.1 2.193 109.8 0.1340 48.4 0.8189 -29.7 1.200 0.5992 -78.8 2.110 104.8 0.1384 46.3 0.7994 -31.5 1.300 0.5656 -84.5 2.040 100.4 0.1423 44.8 0.7805 -33.0 1.400 0.5261 -90.1 1.961 96.0 0.1446 43.4 0.7633 -34.7 1.500 0.5001 -95.9 1.907 92.1 0.1474 42.4 0.7477 -35.9 1.600 0.4633 -102.1 1.823 87.7 0.1501 41.6 0.7352 -37.1 1.700 0.4349 -108.3 1.773 83.9 0.1522 41.1 0.7214 -38.4 1.800 0.4001 -114.8 1.730 80.0 0.1550 40.7 0.7113 -39.6 1.900 0.3800 -122.1 1.694 76.3 0.1565 40.7 0.6992 -41.1 2.000 0.3562 -128.5 1.639 72.5 0.1585 40.7 0.6897 -42.2 2.200 0.3222 -142.0 1.532 66.1 0.1619 41.3 0.6709 -44.9 2.400 0.2927 -157.8 1.473 59.5 0.1664 43.0 0.6521 -47.6 2.600 0.2829 -174.2 1.391 53.9 0.1742 44.5 0.6375 -50.4 2.800 0.2780 170.6 1.342 48.5 0.1819 46.1 0.6264 -53.7 3.000 0.2913 157.4 1.276 43.0 0.1914 47.7 0.6108 -57.0 3.500 0.3444 129.9 1.148 31.4 0.2272 50.5 0.5878 -67.7 4.000 0.4031 112.0 1.050 21.1 0.2792 50.9 0.5573 -81.5 4.500 0.4625 99.5 0.972 12.5 0.3408 48.0 0.5329 -98.1 5.000 0.5072 89.6 0.899 4.8 0.4070 42.7 0.5128 -116.7 5.500 0.5472 81.6 0.828 -1.7 0.4709 35.4 0.4921 -136.8 6.000 0.5775 75.1 0.784 -7.1 0.5276 27.3 0.4837 -157.0 ! ! SIEMENS AG Semiconductor Group, Munich