0ZRE0055FF1A

Ptc Resettable Fuses Overview

The Bel Fuse Inc. 0ZRE0055FF1A is a polymer PTC resettable fuse designed for circuit protection in through-hole applications. It features a radial, disc-style package and holds AEC-Q200 automotive qualification. The device maintains a maximum holding current of 550 mA and supports a maximum voltage of 240 VAC or 240 VDC. It trips at a maximum current of 1.25 A with a maximum resistance of 2.1 Ohms. The component operates within a temperature range of -20°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection using polymer technology
• Designed for high-reliability automotive environments with AEC-Q200 certification
• Supports both AC and DC circuit protection up to 240 volts

Ptc Resettable Fuses Applications

• Automotive electronic circuit protection
• Power supply input protection
• Peripheral interface circuits

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix FF1A against official Bel Fuse documentation to confirm the exact packaging configuration and lead time requirements. Ensure the procurement channel sources genuine components from authorized distributors to maintain AEC-Q200 automotive grade integrity. Cross-reference the manufacturer part number with the distributor catalog to prevent substitution errors during acquisition.

Ptc Resettable Fuses Selection Notes

Select this component when an automotive-grade, radial-mounted PTC fuse is required for low-current protection. Compare the 550 mA holding current and 240 V rating against circuit demands. Consider the -20°C minimum operating temperature limit relative to the application environment. Evaluate the 2.1 Ohm trip resistance for voltage drop constraints in the design.

Ptc Resettable Fuses Part Context

This part belongs to the 0ZRE series of polymer PTC resettable fuses manufactured by Bel Fuse Inc. The series is characterized by its radial leaded construction suitable for through-hole mounting. It serves as a reusable alternative to traditional one-time fuses in protecting sensitive electronics from overcurrent conditions.

Ptc Resettable Fuses Replacement Considerations

Consult official Bel Fuse cross-reference guides for verified substitutes. Ensure any replacement matches the 550 mA holding current, 240 V voltage rating, and radial package dimensions.