Lg 0DZ750009AF Zener Diode (Voltage Regulator), 1 Pc OEM Part

Product Details

Genuine Lg part.

Cross Reference Information

Part Number 0DZ750009AF replaces AP5203544, 1273002, AH3539519, EA3539519, PS3539519.

Description

This Zener diode protects and regulates voltage on the appliance control board, helping stabilize electronic circuits and prevent over-voltage damage. Use it to restore reliable board operation when the original diode has failed. What it does:

• Regulates and clamps voltage to a specific level on the control board to protect sensitive components.
• Helps prevent transient or sustained over-voltage conditions that can cause board errors or component failure.
• Commonly replaced when the control board shows power issues, blown board fuses, or erratic electronic behavior.
• Works as a single-component replacement when the OEM part confirms this diode as the failed item.

What's included:

• One Zener diode

Install notes:

• Disconnect power and unplug the appliance before beginning any repair.
• Board-level replacement typically requires desoldering/soldering; use proper ESD precautions.
• Verify the diode is the failed component before replacing to avoid unnecessary parts returns.