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The is a snap-action thermal cut-out (TCO) designed to protect electrical circuits from overheating. It operates on the principle of a bimetallic strip that snaps open when a specific temperature is reached, breaking the circuit. Once the device cools down, it automatically resets, allowing the circuit to close again.
While a full internal circuit schematic is rarely released by manufacturers, you can find high-resolution board layouts and repair diagrams showing key test points (like VGH and VGL) through specialized parts and repair communities. Key Specifications & Identification Part Number: CCPD-TC425-001 (also associated with STCON425G). Compatibility: Ccpd-tc425-001 Diagram