FET Switch Buffers

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These open-drain FET buffer modules are intended for converting receiver 'P' outputs to type 'F'. The 'P' output is 0V when OFF and 3V when ON and can supply a maximum of 20mA on most receivers. Some receivers (e.g. MR603 have 'F' outputs which provide a 'switch to ground' circuit with a 2A capability.

Some receiver have no 'F' outputs, or insufficient for a specific installation. This creates a problem if you need to control 12V light bulbs or trigger a sound module. Many sound modules have more than 3V on the trigger input and this could damage the receiver microprocessor. The solution is to use one of these tiny add-on modules.

The buffer input connects to the 'P' output and the load is wired in-between the buffer output and the load positive supply, which can be up to 30V. Although designed for use with Micron land-based receivers, these FET switches can be used where a low-level logic signal is required to switch a high current / high voltage load.

	Single FET Buffer Description An open-drain FET buffer for converting Deltang 'P' outputs to 'F' - e.g. for switching external circuits. Supplied with 100mm leads for input, output and negative/ground connections. Wiring: Negative / Ground: black Input: thin orange Outputs: thick orange Single FET Buffer Connections £ 3.95
Click on image for a larger version.	Dual FET Buffer Description Rx60 / Mtroniks A dual open-drain FET buffer for converting Deltang 'P' outputs to 'F' - e.g. for switching external circuits. Supplied with 100mm leads for input, output and negative/ground connections. Wiring: Negative / Ground: black Inputs: thin orange / thin green Outputs: thick orange / thick green Dual FET Buffer Connections Using Dual Buffer with Mtroniks digiSound £ 5.95