Mitsubishi RN181A-EM-SV-80E is a servo drive power / interface PCB assembly offered for replacement matching. The photographed board carries BC886A127G51 identification, repeated interface-circuit sections, pin headers and bolted connection points.

The complete RN181A-EM-SV-80E model is visible across the printed and applied labels. Use the full reference, including EM, SV and 80E, when comparing the replacement with the original board.

RN181A-EM-SV-80E Product Information

Product Scope

This listing covers the populated PCB assembly shown in the photos. The board has three repeated circuit sections with white packaged components, low-resistance resistors, pin headers and metal connection points. Confirm the supplied assembly and any attached components or mounting fittings with the quotation.

Model and Board Identification

Match RN181A-EM-SV-80E and BC886A127G51 together. The separate BC886A127H01 marking provides another PCB reference. Mitsubishi Electric Corporation, RN181 and Made in Japan markings are also visible. Compare all labels and fitted components with the original unit.

Visible connection labels include LP, MN, MP, MU/MV/MW and SU/SV/SW. Their locations, pin-header arrangement and board cutouts help identify the required assembly.

Fitment Confirmation

Send the complete drive nameplate and clear photos of both sides of the original PCB. Check the full model suffix, board number, revision, connector arrangement, connection-point positions and mounting clearance. Confirm the required drive specification before ordering; matching the RN181 family marking alone is insufficient.

Have a qualified technician follow the exact drive instructions for power isolation, capacitor discharge and board replacement. Confirm any required system settings and the testing scope for the quoted assembly.

For a quotation, provide the quantity, preferred condition and delivery country. Actual-unit photos, supply scope, a pre-shipment test video and dispatch timing can be confirmed before shipment.

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