! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3 V IC = 6 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 0.8371 -3.9 17.720 175.9 0.0028 92.6 0.9880 -2.0 0.020 0.8205 -8.2 17.563 173.5 0.0064 86.2 0.9857 -4.1 0.050 0.8076 -19.9 16.888 163.7 0.0151 79.0 0.9623 -9.9 0.100 0.7495 -39.0 15.608 150.5 0.0279 71.6 0.9006 -18.3 0.150 0.6690 -55.4 13.896 137.8 0.0380 63.8 0.8147 -24.6 0.200 0.6026 -69.1 12.338 129.0 0.0452 60.7 0.7423 -28.4 0.250 0.5440 -81.6 10.897 120.9 0.0515 57.3 0.6726 -31.3 0.300 0.4899 -91.8 9.640 115.0 0.0560 56.0 0.6216 -32.8 0.400 0.4221 -109.4 7.793 106.0 0.0646 54.9 0.5433 -34.1 0.500 0.3778 -124.1 6.446 98.4 0.0729 55.1 0.4934 -34.2 0.600 0.3502 -136.5 5.532 92.6 0.0803 55.6 0.4613 -34.4 0.700 0.3327 -147.6 4.828 87.5 0.0887 56.6 0.4372 -34.4 0.800 0.3256 -155.8 4.266 83.2 0.0971 57.0 0.4190 -34.5 0.900 0.3086 -164.7 3.822 79.2 0.1056 57.9 0.4073 -34.6 1.000 0.3119 -172.8 3.480 75.6 0.1139 58.4 0.3976 -35.2 1.100 0.3130 179.2 3.208 72.1 0.1227 58.5 0.3875 -36.2 1.200 0.3139 172.6 2.966 68.8 0.1320 58.7 0.3788 -37.1 1.300 0.3143 167.2 2.749 65.8 0.1410 58.7 0.3722 -37.9 1.400 0.3185 161.5 2.570 62.9 0.1500 58.6 0.3670 -39.3 1.500 0.3219 157.4 2.435 60.0 0.1594 58.5 0.3603 -40.7 1.600 0.3283 152.1 2.282 57.1 0.1688 58.1 0.3528 -42.0 1.700 0.3364 147.3 2.166 54.3 0.1784 57.7 0.3462 -43.3 1.800 0.3483 143.3 2.071 51.8 0.1880 57.2 0.3417 -45.0 1.900 0.3542 139.1 1.985 49.1 0.1983 56.8 0.3358 -47.1 2.000 0.3602 136.2 1.892 46.6 0.2082 56.0 0.3269 -48.9 2.200 0.3805 129.5 1.742 41.8 0.2287 54.7 0.3149 -52.7 2.400 0.3978 122.7 1.632 36.9 0.2490 53.0 0.2964 -57.6 2.600 0.4221 117.3 1.524 32.5 0.2686 51.1 0.2813 -62.2 2.800 0.4411 112.7 1.442 28.3 0.2893 49.1 0.2613 -68.6 3.000 0.4667 108.0 1.362 24.0 0.3100 47.1 0.2458 -74.9 3.500 0.5215 98.1 1.203 14.5 0.3618 41.5 0.2036 -97.5 4.000 0.5773 90.4 1.080 6.0 0.4092 34.9 0.1760 -129.8 4.500 0.6163 83.8 0.977 -2.1 0.4491 27.9 0.1806 -163.7 5.000 0.6503 75.5 0.860 -6.5 0.4692 23.5 0.1833 -176.6 5.500 0.6670 71.3 0.828 -12.2 0.5248 16.4 0.2776 157.6 6.000 0.6843 66.4 0.779 -17.2 0.5577 9.7 0.3342 141.1 ! ! SIEMENS AG Semiconductor Group, Munich