10-Pack Microwave Oven Fuse Tube 5KV 0.8A D0LD Replacement
10-Pack Microwave Oven Fuse Tube 5KV 0.8A D0LD Replacement
10-Pack Microwave Oven High-Voltage Fuse Tubes – 5KV 0.8A (D0LD)
Keep your microwave running safely and reliably with this set of 10 high-voltage protection fuse tubes. Rated at 5KV / 0.8A, these fuse tubes are designed specifically for use in the high-voltage circuits of domestic microwave ovens. When the circuit detects an abnormal surge — such as excess current caused by a short circuit — the fuse tube permanently disconnects the circuit, instantly safeguarding the magnetron, diode, capacitor, and other critical internal components from irreversible damage.
Stocking up with a 10-pack means you'll always have a replacement on hand when you need it most, making this an excellent value for home appliance maintenance enthusiasts and repair technicians alike.
Key Features
- Voltage Rating: 5KV (5,000 Volts) — built for microwave high-voltage circuit demands
- Current Rating: 0.8A — precise overcurrent protection for your appliance
- Model: D0LD — compatible with a wide range of domestic microwave oven brands and models
- Pack Quantity: 10 replacement tubes — cost-effective multi-pack for ongoing maintenance
- Function: Permanently disconnects circuit upon overcurrent event to protect other components
- Drop-in Replacement: Designed to slot directly into standard microwave oven fuse holders
- High Certification Standard — engineered for safe and reliable performance
How It Works
Inside every microwave oven, a high-voltage circuit powers the magnetron that generates microwave energy. If a fault occurs — such as a short circuit causing excessive current — the fuse tube immediately and permanently breaks the circuit, preventing further electrical damage to the appliance. Replacing a blown fuse tube is one of the most common and straightforward microwave repairs you can perform at home.
Who Is This For?
- DIY home appliance repair enthusiasts
- Professional appliance technicians
- Anyone looking to restore a non-functioning microwave oven affordably
- Workshops and repair centers needing a reliable bulk supply of fuse tubes
Safety Note
Microwave ovens contain high-voltage components that can retain dangerous electrical charge even after the appliance is unplugged. Always discharge the high-voltage capacitor before servicing your microwave. For guidance on safe home appliance repair practices, refer to the U.S. Consumer Product Safety Commission (CPSC) Home Electrical Safety resources.
Frequently Asked Questions
Q: What does a microwave oven high-voltage fuse tube do?
A: A microwave oven fuse tube (rated 5KV 0.8A) acts as a sacrificial safety device within the high-voltage circuit of your microwave. When the current flowing through the circuit exceeds the safe threshold — due to a short circuit or component failure — the fuse tube permanently breaks the electrical connection. This instantly protects the magnetron, capacitor, diode, and transformer from further damage, and signals that a repair is needed.
Q: How do I know if my microwave fuse tube needs replacing?
A: Common signs of a blown microwave fuse tube include: the microwave turns on but does not heat food, the interior light works but the magnetron does not operate, or the appliance is completely dead after a sudden electrical event. A visual inspection of the fuse tube may reveal a broken or blackened filament. A multimeter continuity test will confirm whether the fuse has blown and needs a D0LD replacement tube.
Q: Is this 5KV 0.8A D0LD fuse tube compatible with my microwave?
A: The 5KV 0.8A D0LD fuse tube is a standard specification used in the high-voltage circuits of many domestic microwave oven brands. Before purchasing, check your existing fuse tube or your microwave's service manual to confirm that the 5KV / 0.8A rating and D0LD designation match your appliance's requirements. When in doubt, consult your appliance's documentation or a qualified technician.
Q: Why buy a 10-pack instead of a single fuse tube?
A: Purchasing this 10-pack offers outstanding value — you'll have ample spares on hand for future maintenance, reduce the cost per unit significantly compared to buying individually, and avoid appliance downtime waiting for a single replacement to arrive. It's an ideal choice for repair shops, landlords maintaining multiple appliances, or any household that prefers to be prepared.