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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Mitsubishi Electric OSA105S5A Absolute Encoder New m00042

$299.00 USD

Sale Sold out

ConditionOpen Box - Unused MPNOSA105S5A Stock #0226-00042

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 5.0 lbs

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The Mitsubishi Electric OSA105S5A is an absolute rotary encoder used as a position feedback device on Mitsubishi servo motors and CNC machine tool axes. The nameplate confirms model OSA105S5A, serial number J5AW010771J, date code 2207, with revision markings A2 and G, and identifies the unit as manufactured by Mitsubishi Electric Corporation in Japan. A secondary barcode label on the housing reads TSS A0019808.

The OSA105S5A is a high resolution absolute encoder commonly mounted on Mitsubishi HC series and HF series servo motors, including HF-KP, HF-MP, HF-JP, HF204S, and HF354S motor assemblies. It delivers serial absolute position feedback to Mitsubishi MR-J series servo drives and Mitsubishi CNC controls, allowing the system to retain exact axis position through power cycles without requiring a homing routine. The OSA105S5A is listed by Mitsubishi Electric Automation under order code B55040 and is the direct replacement for the earlier OSA105S5 (B55032).

Typical applications include axis position feedback on Mitsubishi controlled machining centers, turning centers, grinders, and EDM machines, as well as Mitsubishi industrial robots and servo driven automation cells. The hollow shaft housing mounts directly to the rear of the servo motor shaft and connects to the drive through a Mitsubishi proprietary serial feedback cable.

Buyers should verify compatibility with their specific servo motor frame size, drive series, and CNC control firmware before installation. Visible exterior labels and identifiers are documented in the listing photos.

Stock # 0226-042

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Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.