! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3 V IC = 1.5 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 0.9483 -1.9 5.278 177.7 0.0030 88.0 0.9970 -0.8 0.020 0.9374 -4.1 5.228 177.0 0.0065 86.4 0.9991 -1.6 0.050 0.9417 -10.0 5.184 171.7 0.0162 82.6 0.9925 -4.0 0.100 0.9298 -20.0 5.116 165.0 0.0319 79.0 0.9820 -7.9 0.150 0.9008 -29.6 4.958 156.7 0.0468 72.5 0.9607 -11.6 0.200 0.8760 -38.6 4.840 150.2 0.0597 68.4 0.9391 -14.9 0.250 0.8478 -48.0 4.665 143.3 0.0715 62.8 0.9088 -18.1 0.300 0.8050 -56.3 4.421 137.3 0.0819 59.4 0.8823 -20.6 0.400 0.7405 -71.7 4.020 126.7 0.0979 51.8 0.8222 -24.8 0.500 0.6742 -86.1 3.601 116.6 0.1084 46.4 0.7693 -28.0 0.600 0.6298 -98.7 3.268 108.8 0.1166 42.3 0.7276 -30.5 0.700 0.5856 -110.2 2.969 101.5 0.1216 39.3 0.6912 -32.3 0.800 0.5512 -120.8 2.695 95.2 0.1255 37.3 0.6607 -33.8 0.900 0.5232 -130.5 2.479 89.4 0.1278 36.0 0.6378 -35.1 1.000 0.5022 -140.3 2.302 84.1 0.1288 35.2 0.6179 -36.5 1.100 0.4879 -149.7 2.148 79.2 0.1302 35.3 0.6014 -37.9 1.200 0.4785 -158.2 2.007 74.7 0.1309 35.5 0.5879 -39.5 1.300 0.4740 -165.1 1.873 70.7 0.1325 36.3 0.5761 -40.6 1.400 0.4673 -172.5 1.763 66.8 0.1331 37.4 0.5681 -42.2 1.500 0.4662 -179.0 1.679 63.3 0.1354 38.9 0.5568 -43.6 1.600 0.4674 173.8 1.580 59.2 0.1380 40.5 0.5489 -45.2 1.700 0.4690 167.7 1.511 56.1 0.1414 42.9 0.5386 -46.8 1.800 0.4746 161.8 1.451 52.9 0.1464 44.3 0.5330 -48.4 1.900 0.4795 156.3 1.397 49.7 0.1508 46.3 0.5271 -50.6 2.000 0.4845 151.2 1.332 46.5 0.1574 47.8 0.5199 -52.5 2.200 0.5006 142.1 1.228 40.8 0.1715 51.0 0.5104 -56.8 2.400 0.5138 133.1 1.154 35.5 0.1904 53.2 0.4946 -62.0 2.600 0.5338 124.9 1.080 30.9 0.2111 54.2 0.4827 -66.9 2.800 0.5523 118.3 1.021 26.6 0.2346 54.5 0.4675 -73.3 3.000 0.5720 111.8 0.964 22.5 0.2604 54.3 0.4567 -79.7 3.500 0.6175 98.9 0.851 13.9 0.3321 50.4 0.4271 -99.9 4.000 0.6547 89.1 0.769 7.0 0.4040 43.3 0.4013 -125.2 4.500 0.6773 80.8 0.711 1.2 0.4662 34.6 0.3918 -151.8 5.000 0.6988 72.4 0.640 -1.1 0.4967 28.1 0.3651 -168.0 5.500 0.6968 67.6 0.644 -4.6 0.5621 19.4 0.4468 167.6 6.000 0.6959 62.8 0.631 -8.4 0.5970 11.1 0.4842 148.7 ! ! SIEMENS AG Semiconductor Group, Munich