Switching BEC's allow for higher battery voltages than can normally be used with on-board voltage regulators. This BEC has an input voltage range of 6 volts to 42 volts DC, so it is suitable for 2-cell to 10-cell Li-Po batteries or 2-cell to 12-cell A123 batteries. The output is switchable to provide either 5.0 or 6.0 volts, and can provide up to 5 amps continuous current with an 8 amp burst rating to power your receiver and servos.
This BEC circuit includes a shielded metal can that surrounds all of the electronic components to minimize any generated signal noise. This is a big plus if you are having problems with glitches or other noise related problems with your radio installation. The output lead of the BEC also wrapped through a toroid choke to further reduce any switching noise that might be generated by the BEC.
The output level of the BEC can be set to either 5.0 volts or 6.0 volts by changing the position of the blue selection jumper shown in the photo. This BEC circuit also features an on-off switch, so you can disable output of the BEC circuit if needed. The circuit board on the BEC measures 28 x 48 mm (1.10 x 1.19 inches), and is 11mm thick (0.43 inches) and weighs only 33 grams (1.16 ounces) including the switch, and all of the wires and connectors.
Also included with the BEC is a 0.7 volt step-down extension that allows you to drop the output down to one of your servos. This comes in really handy if you have a helicopter, and want to run 6.0 volts to your receiver and cyclic servos, but want to step the output to your Gyro and tail rotor servo down to 5.3 volts.
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