! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 5 V IC = 16 mA ! Common Emitter S-Parameters: August 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.7251 -6.5 33.571 173.7 0.0023 87.7 0.9771 -3.0 0.020 0.7150 -13.2 33.118 169.3 0.0047 82.3 0.9733 -6.2 0.050 0.6694 -30.9 30.462 155.0 0.0109 75.9 0.9146 -14.1 0.100 0.5653 -56.8 25.242 137.2 0.0206 68.7 0.7931 -23.0 0.150 0.4553 -75.9 20.392 123.7 0.0259 63.8 0.6792 -27.2 0.200 0.4013 -91.5 16.857 115.6 0.0306 64.0 0.6061 -28.1 0.250 0.3498 -103.9 14.133 108.8 0.0351 63.0 0.5498 -28.0 0.300 0.3156 -114.0 12.123 104.0 0.0394 64.5 0.5152 -27.6 0.400 0.2752 -131.3 9.431 97.2 0.0484 66.1 0.4692 -26.1 0.500 0.2528 -145.2 7.638 91.4 0.0572 67.4 0.4450 -25.1 0.600 0.2414 -156.2 6.465 87.0 0.0667 68.2 0.4309 -24.7 0.700 0.2366 -165.4 5.595 83.0 0.0760 68.7 0.4193 -24.7 0.800 0.2366 -173.3 4.917 79.5 0.0857 68.6 0.4104 -24.8 0.900 0.2308 179.3 4.396 76.3 0.0956 68.5 0.4060 -25.1 1.000 0.2355 172.1 3.985 73.3 0.1050 68.4 0.4017 -26.0 1.100 0.2437 165.8 3.659 70.4 0.1150 67.8 0.3952 -27.1 1.200 0.2488 160.1 3.374 67.5 0.1245 67.4 0.3905 -28.1 1.300 0.2462 155.6 3.119 65.0 0.1345 66.7 0.3871 -29.2 1.400 0.2599 151.2 2.914 62.5 0.1436 66.2 0.3837 -30.6 1.500 0.2610 147.3 2.755 60.1 0.1535 65.4 0.3790 -31.9 1.600 0.2693 142.6 2.581 57.3 0.1633 64.6 0.3738 -33.1 1.700 0.2769 139.3 2.455 54.7 0.1733 63.7 0.3680 -34.6 1.800 0.2899 135.1 2.335 52.6 0.1830 62.8 0.3641 -36.1 1.900 0.2971 132.7 2.236 50.2 0.1929 62.1 0.3587 -38.1 2.000 0.3032 129.7 2.131 47.9 0.2026 61.0 0.3520 -39.9 2.200 0.3246 124.1 1.963 43.4 0.2227 59.1 0.3410 -43.1 2.400 0.3413 118.7 1.831 38.8 0.2425 57.2 0.3237 -47.1 2.600 0.3658 113.6 1.710 34.8 0.2611 54.9 0.3083 -51.2 2.800 0.3854 109.9 1.618 30.8 0.2813 52.8 0.2890 -56.1 3.000 0.4112 105.9 1.527 26.8 0.3000 50.6 0.2720 -60.9 3.500 0.4721 98.1 1.352 17.4 0.3496 44.9 0.2225 -78.1 4.000 0.5317 91.2 1.215 8.7 0.3950 38.4 0.1738 -103.0 4.500 0.5758 85.3 1.102 0.5 0.4336 31.8 0.1528 -134.7 5.000 0.6201 78.9 1.007 -6.9 0.4705 25.3 0.1630 -167.9 5.500 0.6392 71.9 0.895 -10.5 0.4894 21.2 0.1741 -178.8 6.000 0.6607 68.1 0.858 -16.4 0.5417 14.6 0.2556 155.8 ! ! SIEMENS AG Semiconductor Group, Munich