! SIEMENS Small Signal Semiconductors ! BFR181 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 8 V IC = 1.5 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 0.9475 -0.9 4.937 179.0 0.0015 89.8 0.9981 -0.5 0.020 0.9451 -1.8 4.979 177.8 0.0033 91.1 0.9883 -0.9 0.050 0.9481 -4.7 5.032 175.4 0.0084 87.4 0.9956 -2.2 0.100 0.9423 -9.1 4.944 171.1 0.0164 83.0 0.9931 -4.3 0.150 0.9292 -14.0 4.969 165.5 0.0249 81.0 0.9845 -6.6 0.200 0.9165 -18.1 4.884 161.5 0.0326 78.4 0.9759 -8.7 0.250 0.9049 -22.6 4.791 157.0 0.0402 75.9 0.9667 -10.6 0.300 0.8775 -27.0 4.743 152.4 0.0472 73.7 0.9524 -12.6 0.400 0.8307 -35.0 4.563 144.8 0.0597 68.8 0.9236 -16.1 0.500 0.7780 -42.6 4.239 136.6 0.0711 64.7 0.8931 -19.2 0.600 0.7272 -50.0 4.043 129.8 0.0812 61.2 0.8633 -21.7 0.700 0.6752 -56.6 3.863 123.2 0.0894 58.4 0.8337 -24.0 0.800 0.6215 -63.1 3.630 117.0 0.0968 56.0 0.8049 -25.9 0.900 0.5724 -68.6 3.414 111.3 0.1026 54.2 0.7769 -27.5 1.000 0.5236 -74.3 3.217 106.7 0.1076 52.8 0.7548 -29.0 1.100 0.4864 -80.2 3.053 102.2 0.1127 51.7 0.7352 -30.4 1.200 0.4453 -85.8 2.891 97.6 0.1173 50.8 0.7182 -31.7 1.300 0.4103 -90.8 2.746 93.6 0.1217 50.3 0.7017 -32.7 1.400 0.3686 -96.2 2.617 89.4 0.1250 50.1 0.6882 -33.9 1.500 0.3429 -101.6 2.521 85.9 0.1293 50.0 0.6740 -34.9 1.600 0.3092 -108.4 2.399 81.8 0.1331 49.9 0.6619 -35.8 1.700 0.2796 -114.9 2.310 78.6 0.1370 50.5 0.6475 -36.7 1.800 0.2573 -120.8 2.215 75.5 0.1418 50.7 0.6398 -37.7 1.900 0.2401 -127.6 2.136 72.3 0.1458 50.8 0.6317 -39.0 2.000 0.2227 -135.4 2.052 69.1 0.1509 50.9 0.6253 -40.0 2.200 0.1913 -151.3 1.926 63.2 0.1604 51.9 0.6078 -42.3 2.400 0.1771 -169.0 1.810 57.7 0.1710 52.5 0.5953 -44.8 2.600 0.1763 171.3 1.717 52.7 0.1842 53.1 0.5788 -47.5 2.800 0.1873 156.5 1.625 48.0 0.1969 53.2 0.5696 -50.6 3.000 0.2064 142.3 1.557 43.0 0.2112 53.5 0.5536 -53.6 3.500 0.2704 119.6 1.392 32.2 0.2523 52.4 0.5240 -63.7 4.000 0.3347 106.3 1.275 22.4 0.3000 50.0 0.4923 -76.8 4.500 0.3968 97.3 1.173 13.5 0.3539 46.0 0.4613 -92.4 5.000 0.4512 89.3 1.095 5.1 0.4107 40.5 0.4322 -109.8 5.500 0.4982 82.7 1.008 -2.4 0.4655 34.1 0.4138 -129.4 6.000 0.5354 76.3 0.937 -9.1 0.5171 26.7 0.4072 -149.7 ! ! SIEMENS AG Semiconductor Group, Munich