EATON MDA Time-Delay Ceramic Tube Fuses
EATON MDA Series Time-Delay Ceramic Tube Fuses are designed for overcurrent protection in electronic and electrical systems. These ceramic tube fuses support ratings up to 250Vac or 125Vdc, with current options ranging from 0.25A to 30A. The MDA time-delay fuses follow a standard 3AB footprint measuring ¼” x 1¼” (6.3mm x 32mm) and are available in cartridge and axial lead configurations. Typical applications include circuit protection in lighting systems, televisions, test equipment, and UPS devices.
Features
- Ceramic tube fuse with time-delay functionality
- Intended to protect electronic and electrical systems from overcurrent conditions
- Offered in both cartridge-style and axial lead configurations
- Uses a compact 3AB form factor measuring ¼” x 1¼” (6.3mm x 32mm)
Applications
- Primary circuit protection:
- Appliances and white goods
- LED and general lighting
- LED/LCD televisions
- Printers and peripherals
- Test equipment
- Uninterruptible Power Supplies (UPS)
Technical Specifications
| Parameters | Values |
|---|---|
| Current Rating Range | 0.25A to 30A |
| Operating Temperature Range | -55°C to +125°C |
| Voltage Rating | 250Vac or 125Vdc |
MDA Series Time-Delay Ceramic Tube Fuses Temperature Derating Curve
Video
This TTI Tech Specs video for EATON MDA Series Time-Delay Ceramic Tube Fuses explains how these UL-listed components provide patient and reliable primary overcurrent protection for demanding applications. These fuses feature a robust ceramic construction, nickel-plated brass contacts, and available current ratings from 0.25A to 30A for both fuse holder and PCB-mount varieties.
Video Transcript
Patience is a virtue, and you’ll need a lot of it if you want to be a successful engineer. You also might need a patient fuse once in a while. One that waits to see if that overcurrent is just a brief moment in its life. One like the UL-listed Eaton MDA time-delay ceramic tube fuses. These time-delay fuses are housed in a ceramic tube with nickel-plated brass ends, making it perfect for those using fuse holders, but these fuses also come in leaded varieties for those who need to solder their fuse directly to a PCB. With a physical size of 1/4 inch by 1 and 1/4 inch and current ratings from 0.25A to 30A, there are plenty of options available for engineers. Furthermore, the time delay feature means no nuisance tripping for currents up to 2 times the fuse rated current, making this a good fit for primary overcurrent protection applications.
