! SIEMENS Small Signal Semiconductors ! BFR181W ! Si NPN RF Bipolar Junction Transistor in SOT323 ! VCE = 1.5 V IC = 2 mA ! Common Emitter S-Parameters: September 1992 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.100 0.9301 -11.9 6.296 169.9 0.0185 82.7 0.9859 -5.6 0.150 0.9186 -17.9 6.232 164.7 0.0276 79.3 0.9760 -8.3 0.200 0.8979 -23.5 6.131 159.9 0.0360 76.3 0.9630 -10.8 0.250 0.8767 -29.1 6.008 155.1 0.0442 73.0 0.9463 -13.3 0.300 0.8563 -34.5 5.856 150.6 0.0516 70.5 0.9291 -15.5 0.400 0.8013 -44.8 5.549 141.6 0.0646 65.2 0.8888 -19.5 0.500 0.7478 -54.1 5.194 133.9 0.0757 60.9 0.8474 -22.8 0.600 0.6906 -63.1 4.853 126.9 0.0853 57.4 0.8085 -25.5 0.700 0.6418 -71.4 4.514 120.3 0.0922 54.6 0.7723 -27.7 0.800 0.5971 -79.2 4.214 114.7 0.0983 52.5 0.7402 -29.5 0.900 0.5523 -86.1 3.911 109.7 0.1037 50.9 0.7123 -30.9 1.000 0.5224 -93.0 3.669 105.1 0.1080 49.5 0.6875 -32.2 1.200 0.4596 -105.2 3.218 96.9 0.1155 48.0 0.6471 -34.3 1.400 0.4173 -117.1 2.877 89.9 0.1216 47.6 0.6178 -35.9 1.500 0.3993 -122.7 2.727 86.7 0.1244 47.6 0.6056 -36.7 1.600 0.3802 -128.1 2.598 83.5 0.1277 48.0 0.5968 -37.4 1.800 0.3608 -138.5 2.366 78.0 0.1338 48.9 0.5797 -39.0 2.000 0.3406 -147.9 2.176 72.8 0.1399 50.0 0.5694 -40.7 2.200 0.3290 -156.7 2.013 68.3 0.1465 51.1 0.5625 -42.3 2.400 0.3232 -164.9 1.888 64.0 0.1542 52.6 0.5576 -44.3 2.500 0.3157 -169.3 1.820 61.6 0.1582 53.2 0.5562 -45.1 3.000 0.3209 171.7 1.583 52.0 0.1809 56.3 0.5517 -50.6 3.500 0.3276 156.7 1.413 43.6 0.2111 58.2 0.5502 -57.3 4.000 0.3531 143.1 1.283 35.6 0.2439 58.8 0.5467 -64.2 4.500 0.3716 131.1 1.172 29.1 0.2803 58.2 0.5410 -72.2 5.000 0.4051 121.8 1.096 22.6 0.3201 57.1 0.5353 -79.9 5.500 0.4238 112.1 1.022 17.0 0.3645 55.4 0.5346 -87.8 6.000 0.4357 103.7 0.945 12.1 0.4143 52.6 0.5405 -95.7 ! ! SIEMENS AG Semiconductor Group, Munich