! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 2.5 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 0.8027 -2.4 15.371 177.7 0.0013 92.0 0.9901 -1.0 0.020 0.7966 -4.4 15.247 175.3 0.0030 82.4 0.9859 -2.0 0.050 0.7910 -11.1 15.344 169.2 0.0078 84.2 0.9800 -5.1 0.100 0.7553 -21.9 14.668 159.1 0.0155 79.6 0.9513 -9.6 0.150 0.7043 -31.4 13.804 148.6 0.0227 73.7 0.9119 -13.6 0.200 0.6455 -40.3 12.862 140.7 0.0280 70.8 0.8665 -16.6 0.250 0.5906 -47.8 11.763 133.6 0.0332 67.9 0.8258 -18.8 0.300 0.5373 -54.7 10.778 127.3 0.0377 66.9 0.7896 -20.3 0.400 0.4417 -65.9 9.141 117.7 0.0454 65.2 0.7278 -22.1 0.500 0.3667 -75.1 7.759 109.5 0.0520 64.6 0.6809 -22.9 0.600 0.3123 -82.9 6.772 103.5 0.0590 64.4 0.6502 -23.3 0.700 0.2637 -90.8 5.989 98.0 0.0655 64.6 0.6278 -23.7 0.800 0.2261 -97.7 5.325 93.3 0.0723 64.8 0.6109 -24.0 0.900 0.1926 -103.0 4.810 89.2 0.0791 65.1 0.5977 -24.3 1.000 0.1623 -112.7 4.398 85.7 0.0854 65.7 0.5868 -24.9 1.100 0.1428 -120.5 4.053 82.5 0.0923 65.9 0.5789 -25.5 1.200 0.1245 -131.1 3.756 79.2 0.0996 66.1 0.5721 -26.3 1.300 0.1150 -139.3 3.479 76.4 0.1069 66.0 0.5665 -27.0 1.400 0.1015 -152.4 3.257 73.5 0.1134 66.0 0.5624 -28.0 1.500 0.0946 -160.7 3.077 71.0 0.1210 65.8 0.5581 -28.9 1.600 0.0930 -176.7 2.896 68.1 0.1283 65.6 0.5532 -29.9 1.700 0.0934 172.5 2.748 65.5 0.1358 65.6 0.5481 -30.9 1.800 0.0963 160.6 2.627 63.2 0.1435 65.2 0.5441 -32.1 1.900 0.1040 150.4 2.515 60.8 0.1514 65.1 0.5398 -33.4 2.000 0.1150 145.8 2.399 58.6 0.1592 64.4 0.5360 -34.5 2.200 0.1309 131.9 2.212 54.0 0.1756 63.7 0.5273 -37.3 2.400 0.1513 122.3 2.070 49.6 0.1921 62.6 0.5165 -40.1 2.600 0.1770 115.2 1.943 45.5 0.2092 61.3 0.5041 -43.3 2.800 0.1992 110.2 1.836 41.8 0.2267 60.0 0.4932 -46.6 3.000 0.2257 106.2 1.741 37.6 0.2439 58.4 0.4794 -50.2 3.500 0.2903 98.8 1.549 28.2 0.2903 54.2 0.4418 -61.0 4.000 0.3510 93.0 1.417 19.4 0.3390 49.4 0.4004 -74.7 4.500 0.4055 88.5 1.308 11.0 0.3897 43.7 0.3601 -90.9 5.000 0.4580 83.5 1.216 2.9 0.4390 37.5 0.3290 -109.3 5.500 0.5038 78.8 1.121 -4.6 0.4851 30.9 0.3101 -130.5 6.000 0.5442 73.8 1.047 -11.3 0.5291 23.8 0.3066 -152.3 ! ! SIEMENS AG Semiconductor Group, Munich