! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 2.5 V IC = 0.7 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 0.9749 -0.5 2.438 179.8 0.0013 87.6 0.9969 -0.2 0.020 0.9700 -1.2 2.500 178.9 0.0033 91.2 0.9999 -0.6 0.050 0.9735 -3.1 2.462 177.5 0.0069 83.9 0.9970 -1.6 0.100 0.9773 -6.4 2.456 174.7 0.0136 85.3 0.9960 -3.1 0.150 0.9772 -9.9 2.470 171.9 0.0205 83.3 0.9972 -4.7 0.200 0.9721 -12.9 2.429 168.9 0.0269 81.8 0.9947 -6.2 0.250 0.9643 -16.2 2.413 166.5 0.0342 80.4 0.9933 -7.7 0.300 0.9644 -19.2 2.445 163.2 0.0406 77.3 0.9882 -9.1 0.400 0.9520 -25.4 2.401 158.0 0.0536 72.9 0.9820 -12.2 0.500 0.9400 -31.8 2.364 152.3 0.0652 68.8 0.9716 -15.2 0.600 0.9219 -38.0 2.334 146.6 0.0768 65.0 0.9620 -17.9 0.700 0.9083 -44.1 2.284 142.3 0.0874 60.5 0.9498 -20.7 0.800 0.8893 -49.8 2.224 136.9 0.0969 57.0 0.9356 -23.5 0.900 0.8706 -55.2 2.166 132.5 0.1063 53.3 0.9237 -26.0 1.000 0.8540 -60.3 2.103 128.0 0.1141 49.9 0.9095 -28.4 1.100 0.8419 -65.8 2.043 123.6 0.1212 46.9 0.8969 -30.6 1.200 0.8242 -70.8 1.988 119.2 0.1284 43.4 0.8851 -33.1 1.300 0.8074 -76.2 1.939 115.1 0.1339 40.7 0.8705 -35.1 1.400 0.7934 -81.2 1.888 111.0 0.1385 37.6 0.8576 -37.3 1.500 0.7748 -85.5 1.844 107.1 0.1427 35.2 0.8456 -39.2 1.600 0.7593 -90.3 1.792 103.4 0.1462 33.0 0.8351 -41.1 1.700 0.7536 -94.7 1.738 99.8 0.1489 30.5 0.8209 -43.0 1.800 0.7320 -99.2 1.680 96.2 0.1523 28.5 0.8141 -44.6 1.900 0.7226 -102.4 1.631 93.1 0.1546 26.2 0.8061 -46.4 2.000 0.7075 -106.6 1.593 89.1 0.1578 24.4 0.8001 -48.0 2.200 0.6845 -113.9 1.512 82.9 0.1597 20.6 0.7860 -51.5 2.400 0.6697 -120.7 1.410 77.1 0.1607 17.5 0.7727 -54.5 2.600 0.6528 -127.0 1.350 71.6 0.1611 15.0 0.7623 -57.4 2.800 0.6383 -132.7 1.279 66.6 0.1624 12.5 0.7577 -60.3 3.000 0.6287 -138.6 1.223 61.3 0.1608 10.1 0.7503 -63.3 3.500 0.5984 -151.4 1.104 49.7 0.1606 5.8 0.7451 -70.1 4.000 0.5838 -163.3 1.008 38.9 0.1572 2.4 0.7438 -77.3 4.500 0.5716 -175.1 0.927 29.1 0.1539 0.0 0.7502 -84.8 5.000 0.5586 173.8 0.855 19.8 0.1494 -1.0 0.7566 -92.5 5.500 0.5509 162.3 0.798 10.6 0.1460 -0.9 0.7597 -100.5 6.000 0.5481 151.3 0.742 2.9 0.1448 0.0 0.7616 -108.5 ! ! SIEMENS AG Semiconductor Group, Munich