! SIEMENS Small Signal Semiconductors ! BFQ81 ! Si NPN RF Bipolar Junction Transistor in SOT23 ! VCE = 4 V IC = 1 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 0.9638 -1.5 3.589 178.0 0.0027 89.2 0.9973 -0.5 0.020 0.9539 -3.3 3.602 177.5 0.0058 88.4 0.9988 -1.2 0.050 0.9607 -8.5 3.550 173.0 0.0147 84.0 0.9952 -3.0 0.100 0.9548 -16.7 3.507 167.5 0.0295 80.1 0.9905 -5.7 0.150 0.9356 -25.0 3.469 160.2 0.0436 74.9 0.9786 -8.6 0.200 0.9182 -32.5 3.396 154.8 0.0565 71.0 0.9659 -11.2 0.250 0.8990 -40.8 3.331 148.5 0.0690 65.9 0.9476 -13.8 0.300 0.8660 -48.4 3.233 142.7 0.0795 62.1 0.9299 -16.0 0.400 0.8184 -62.7 3.004 132.8 0.0977 54.8 0.8879 -19.9 0.500 0.7581 -75.9 2.752 122.8 0.1109 48.5 0.8489 -23.1 0.600 0.7141 -88.2 2.573 114.6 0.1206 43.4 0.8144 -25.8 0.700 0.6701 -99.7 2.388 107.0 0.1266 39.2 0.7818 -28.0 0.800 0.6345 -110.2 2.198 100.1 0.1311 35.9 0.7540 -29.8 0.900 0.6017 -119.7 2.033 93.9 0.1326 33.6 0.7319 -31.5 1.000 0.5762 -130.2 1.897 88.2 0.1329 31.7 0.7131 -32.9 1.100 0.5566 -139.9 1.792 83.0 0.1328 30.4 0.6980 -34.7 1.200 0.5419 -148.1 1.687 78.0 0.1314 29.8 0.6845 -36.3 1.300 0.5341 -156.1 1.589 73.6 0.1302 29.9 0.6723 -37.7 1.400 0.5242 -164.1 1.500 69.4 0.1274 30.7 0.6637 -39.4 1.500 0.5202 -171.1 1.434 65.6 0.1260 32.3 0.6524 -40.8 1.600 0.5176 -178.4 1.348 61.4 0.1255 34.0 0.6451 -42.4 1.700 0.5184 174.5 1.293 57.7 0.1255 36.8 0.6341 -44.1 1.800 0.5198 168.1 1.241 54.5 0.1269 39.1 0.6303 -45.7 1.900 0.5248 162.2 1.194 51.1 0.1286 42.4 0.6259 -48.0 2.000 0.5285 156.7 1.143 47.9 0.1321 44.9 0.6195 -49.8 2.200 0.5394 146.4 1.058 42.0 0.1434 51.3 0.6095 -54.1 2.400 0.5501 136.5 0.993 36.7 0.1598 55.9 0.5981 -59.2 2.600 0.5714 127.5 0.927 32.2 0.1814 58.8 0.5855 -64.0 2.800 0.5868 120.3 0.876 28.1 0.2064 60.6 0.5751 -70.2 3.000 0.6081 113.0 0.830 24.2 0.2357 60.9 0.5634 -76.3 3.500 0.6447 98.6 0.736 16.9 0.3176 57.4 0.5355 -95.4 4.000 0.6741 87.9 0.676 11.3 0.4015 49.4 0.5031 -119.0 4.500 0.6868 79.4 0.639 6.9 0.4736 39.5 0.4814 -144.5 5.000 0.7031 71.1 0.594 4.9 0.5072 31.8 0.4333 -161.0 5.500 0.6930 66.2 0.615 1.6 0.5770 22.3 0.5002 174.6 6.000 0.6948 61.5 0.618 -2.7 0.6135 13.5 0.5258 155.0 ! ! SIEMENS AG Semiconductor Group, Munich