Part number 231270 / S70E47202 Mitsubishi Electric thermistor used on heat pumps, specifically a “Thermistor (Comp. Shell)” or TH3 defrost sensor. It is a genuine Mitsubishi component used in outdoor units to monitor coil temperature during defrost cycles.

Details
•     Official Mitsubishi Electric part numbers:
•     S70E47202
•     231270
•     Function: Defrost/coil temperature sensor (TH3) for outdoor heat pump units.
•     Typical use: Ensures correct defrost operation by monitoring compressor shell or coil temperature.
•     Cable length: ~1 meter (per product listings).
•     Manufacturer model reference: PAC‑TH011‑E.

Compatibility
The part is used across multiple Mitsubishi Ecodan and PUHZ outdoor units. Exact compatibility depends on model, but listings show it used in:
•     PUHZ‑W112VAA.UK and similar Ecodan heat pumps
•     Other Mitsubishi TH3 defrost sensor applications (coil/compressor shell)