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Micron MR603c DSM2/DSMX 20V Receiver with 3A Bi-Directional ESC

MR603c Top
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MR603c is the 3rd version of MR603, a 2.4GHz DSM2/DSMX receiver which includes one integrated 3A reversable controller for brushed motors (ESC) plus 10 auxiliary outputs (4xF, 6xP) for lighting, sound trigger, couplers, etc. It can be used with any Spektrum DSM2/DSMX compatible transmitter; this includes all of the Micron model rail transmitters or a stick model aircraft type transmitter.

MR603c is 36.75x16x10mm and weighs 3.6g without leads. The voltage range is 5V to 20v and the 3A motor current rating makes it suitable for Gauges 0 and 1 plus 16mm narrow gauge. MR603c is available as board-only for you to add wiring or with a range of pre-wired leads / connectors. The standard output configuration is described on the Outputs tab. If the wiring or configuration options do not meet your needs, please contact us to discuss your requirements.

An enormous range of programming features are provide to enable you to customise the operation of MR603c to suit your model. The current firmware version is 1.8.1. See MR603 Programming (v1.5) for full details of the available functionality or the user manual for brief details. Access to programming is either via a stick type transmitter or one of the Micron model rail transmitters. A stand-alone programmer with web interface is in development.

The receiver is normally supplied as a bare board, with wiring options as specified in the menus below. The MR603c is available with either a short wire aerial or a 150mm extended aerial for use in metal bodied vehicles; when using the extended aerial, it be mounted so that the last 30mm of the aerial can 'see' the transmitter.

The default behaviour of the P outputs and F switches are defined on the Configuration tab. F switches are best used for sound card triggers - select configuration #2 or #3 to match your transmitter controls. Other setups are available; contact Micron to discuss if none of the standard configurations or wiring options matches your need.

Selecta, Throttle and Wiring Options:

Selecta (loco selection with Tx22, Tx24, etc)


Select the extended aerial if MR603 will be enclosed within a metal bodied vehicle

Throttle Control:
Power/Motor Leads/Connectors:
P outputs:

These are logic level 0V/3.3V outputs, mainly used for LED lighting. The default configuration has auto-switched forward and reverse lighting on P1 and P2 with P3..P6 switched using transmitter controls. See the Outputs tab for wiring colours.

F switches:

If sound trigger wiring is selected, specify the transmitter controls used for sound in the 'Receiver Config' menu below. Other wiring options and tx control mappings are available, contact Micron to discuss your requirements. See the Outputs tab for information on output usage and wiring colours.

Receiver Config:

The receiver configuration may be changed if sound card triggers selected for the 'F' options above. Specify the transmitter controls to be used triggering sounds. If none are appropriate, contact Micron to discuss your requirements.


The receiver has a low voltage cut-off (LVC) facility which stops the motor when the battery has reached its discharge voltage. The default setting is for LiPo batteries. If you are using NiMH, the LVC should be disabled - see Low Voltage Cutoff tab.

Heatshrink Cover:

Select 'cover supplied loose if you intend to add lead-out wires to the receiver; otherwise select 'applied to board'. If you want the receiver protected against accidental contact with metal parts, please select the 'heatshrink applied' option.

Base Price: £ 42.00 Total Price: £ 42.00

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