Mitsubishi Electric OSA105S5A Sensor New m00042

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