Thermador Microwave Capacitor

This microwave high-voltage capacitor replaces the internal capacitor that stores and supplies the pulse of energy needed for the magnetron to generate microwaves. Restores proper HV circuit operation when the capacitor is faulty. What it does:

• Stores and releases high-voltage energy used by the microwave's magnetron
• Commonly fails after electrical stress, age, or arcing
• Symptoms of a failing capacitor: microwave not heating, intermittent operation, humming or arcing noises, or blown fuses
• Works with the high-voltage circuitry—do not use as a general-purpose capacitor

• Disconnect power and unplug the appliance before any service.
• Capacitors can retain dangerous voltage even when unplugged—discharge safely using an insulated discharge tool.
• Follow the appliance service manual for correct removal and wiring; replace with the exact OEM part.

This replacement capacitor with internal resistor helps stabilize control circuits and assist motor start in compatible appliances, restoring reliable electrical performance and preventing intermittent operation. What it does

• Provides the capacitance needed for motor start/run and helps suppress electrical noise in control circuits.
• Supports steady voltage during startup to reduce motor humming or failure to start.
• Can resolve intermittent operation, erratic control behavior, or startup delays when failing.
• Contains an internal bleed/resistor to safely discharge stored energy and reduce residual charge risk.

• Disconnect power at the breaker and unplug the appliance before accessing electrical components.
• Capacitors can hold a charge — discharge safely and use insulated tools.
• Handle carefully to avoid damage from bending leads or crushing the housing.