! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 0.5 V IC = 6 mA ! Common Emitter S-Parameters: May 1997 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.7844 -4.1 13.559 177.6 0.0028 85.4 0.9305 -1.7 0.020 0.7803 -8.2 13.805 174.7 0.0061 83.8 0.9362 -3.5 0.050 0.7725 -20.4 13.338 167.2 0.0143 77.8 0.9143 -8.8 0.100 0.7484 -39.5 12.618 155.3 0.0259 69.4 0.8682 -16.6 0.150 0.7172 -57.4 11.607 144.5 0.0357 60.4 0.8077 -23.0 0.200 0.6842 -71.7 10.464 135.9 0.0430 53.5 0.7467 -27.8 0.250 0.6580 -84.5 9.396 128.5 0.0489 48.6 0.6900 -31.3 0.300 0.6300 -96.1 8.486 121.6 0.0528 44.4 0.6388 -33.8 0.400 0.6009 -113.5 6.985 111.9 0.0581 38.7 0.5610 -36.8 0.500 0.5809 -126.5 5.864 104.3 0.0616 35.2 0.5098 -38.4 0.600 0.5695 -136.0 5.033 98.1 0.0647 33.3 0.4737 -39.4 0.700 0.5632 -144.2 4.397 93.5 0.0669 32.4 0.4468 -40.2 0.800 0.5561 -150.7 3.881 88.9 0.0683 31.7 0.4279 -41.0 0.900 0.5493 -155.8 3.503 85.4 0.0707 31.6 0.4147 -41.8 1.000 0.5443 -160.1 3.177 81.8 0.0724 31.2 0.4050 -43.0 1.100 0.5495 -163.9 2.909 78.6 0.0741 31.9 0.3982 -44.0 1.200 0.5454 -167.5 2.684 75.4 0.0764 31.8 0.3922 -45.5 1.300 0.5499 -170.9 2.484 72.5 0.0785 32.4 0.3894 -46.8 1.400 0.5495 -173.9 2.308 69.3 0.0801 32.5 0.3855 -48.4 1.500 0.5464 -176.3 2.162 66.6 0.0815 33.1 0.3843 -49.7 1.600 0.5500 -178.3 2.031 64.2 0.0837 33.8 0.3845 -51.4 1.700 0.5489 179.2 1.932 61.4 0.0855 34.3 0.3835 -52.8 1.800 0.5516 176.9 1.822 59.5 0.0879 34.8 0.3862 -54.7 1.900 0.5469 175.1 1.736 56.9 0.0899 34.6 0.3860 -56.3 2.000 0.5492 173.2 1.657 54.3 0.0930 35.2 0.3897 -58.2 2.200 0.5498 169.5 1.513 49.9 0.0974 35.4 0.3912 -61.8 2.400 0.5504 166.3 1.394 45.7 0.1022 35.8 0.3966 -65.3 2.600 0.5497 163.5 1.293 41.4 0.1068 36.1 0.4021 -68.6 2.800 0.5522 160.3 1.212 37.7 0.1127 36.4 0.4103 -72.1 3.000 0.5529 157.0 1.135 33.3 0.1182 36.2 0.4147 -75.7 3.500 0.5500 149.9 0.990 24.3 0.1330 36.0 0.4345 -84.9 4.000 0.5533 142.7 0.877 15.2 0.1489 34.0 0.4500 -93.9 4.500 0.5533 134.9 0.793 6.8 0.1645 31.7 0.4667 -103.0 5.000 0.5484 127.2 0.712 -0.8 0.1800 29.0 0.4828 -112.3 5.500 0.5540 119.4 0.643 -8.5 0.1954 26.0 0.4951 -121.5 6.000 0.5582 112.2 0.589 -14.7 0.2107 22.6 0.5063 -130.2 ! ! SIEMENS AG Semiconductor Group, Munich