! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 3 V IC = 1 mA ! Common Emitter S-Parameters: May 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.9606 -0.9 3.464 179.4 0.0015 92.3 0.9988 -0.4 0.020 0.9562 -1.4 3.411 178.3 0.0035 85.2 0.9992 -0.8 0.050 0.9605 -4.1 3.507 176.1 0.0087 87.4 0.9977 -1.9 0.100 0.9539 -7.9 3.492 172.5 0.0171 83.9 0.9962 -3.7 0.150 0.9485 -12.1 3.462 167.6 0.0262 81.6 0.9903 -5.6 0.200 0.9393 -15.8 3.480 163.9 0.0340 79.6 0.9847 -7.4 0.250 0.9309 -20.0 3.409 160.1 0.0424 76.9 0.9774 -9.3 0.300 0.9134 -23.8 3.344 156.1 0.0502 75.0 0.9701 -10.9 0.400 0.8814 -31.4 3.305 149.1 0.0646 70.1 0.9500 -14.3 0.500 0.8321 -38.9 3.171 141.1 0.0776 65.9 0.9266 -17.4 0.600 0.7989 -45.5 3.023 135.1 0.0897 61.9 0.9029 -20.1 0.700 0.7592 -52.0 2.915 128.8 0.0994 58.7 0.8787 -22.5 0.800 0.7097 -58.7 2.793 122.5 0.1083 55.2 0.8547 -24.8 0.900 0.6631 -64.8 2.694 116.4 0.1151 52.7 0.8292 -26.8 1.000 0.6215 -71.3 2.588 111.3 0.1206 50.6 0.8052 -28.6 1.100 0.5802 -77.5 2.481 106.5 0.1259 48.8 0.7850 -30.3 1.200 0.5409 -82.9 2.364 101.7 0.1303 47.1 0.7668 -32.0 1.300 0.5074 -88.3 2.259 97.6 0.1347 45.8 0.7497 -33.2 1.400 0.4718 -94.2 2.159 93.3 0.1375 44.9 0.7354 -34.7 1.500 0.4407 -100.2 2.098 89.4 0.1400 44.3 0.7202 -35.8 1.600 0.4068 -106.7 2.010 85.0 0.1433 43.7 0.7074 -37.0 1.700 0.3690 -113.3 1.963 81.2 0.1452 44.0 0.6911 -38.1 1.800 0.3426 -120.1 1.900 77.5 0.1481 44.1 0.6803 -39.2 1.900 0.3253 -127.5 1.839 74.0 0.1502 44.3 0.6694 -40.6 2.000 0.3091 -134.0 1.773 70.6 0.1538 44.4 0.6622 -41.6 2.200 0.2755 -149.0 1.669 64.2 0.1596 45.2 0.6452 -44.3 2.400 0.2565 -165.0 1.576 58.2 0.1672 46.9 0.6285 -46.9 2.600 0.2498 177.9 1.500 52.7 0.1769 48.0 0.6142 -49.6 2.800 0.2522 163.4 1.429 47.7 0.1875 49.4 0.6023 -52.8 3.000 0.2672 150.1 1.367 42.2 0.1991 50.3 0.5889 -56.2 3.500 0.3262 124.7 1.227 31.0 0.2382 51.5 0.5616 -66.8 4.000 0.3883 109.3 1.116 21.0 0.2889 50.7 0.5332 -80.6 4.500 0.4453 98.0 1.030 12.2 0.3491 47.1 0.5041 -96.9 5.000 0.4944 88.9 0.960 4.2 0.4120 41.6 0.4811 -115.2 5.500 0.5357 81.4 0.880 -2.6 0.4721 34.7 0.4658 -135.4 6.000 0.5666 74.7 0.823 -8.4 0.5273 26.8 0.4568 -155.7 ! ! f Fmin Gammaopt rn/50 ! GHz dB MAG ANG - 0.450 1.30 0.70 18 0.50 0.900 1.40 0.60 39 0.52 1.800 1.85 0.40 81 0.47 ! ! SIEMENS AG Semiconductor Group, Munich