0ZRN0550FF2B

Ptc Resettable Fuses Overview

The Bel Fuse 0ZRN0550FF2B is a polymeric PTC resettable fuse rated for 16 VDC maximum voltage with a 5.5 A hold current and 9.35 A trip current. It features a radial through-hole disc package measuring 14 mm in diameter and 3.8 mm in height, with a maximum resistance of 0.07 Ohms. The component supports a maximum fault current of 100 A and operates within a temperature range of -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection via positive temperature coefficient polymer technology
• Automatically resets after cooling following fault condition removal
• Designed for radial through-hole mounting on printed circuit boards

Ptc Resettable Fuses Applications

• Overcurrent protection for low-voltage DC power lines
• Protection of portable electronic devices and accessories
• Circuit safeguarding in automotive electronics applications

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix FF2B corresponds to the required reel packaging configuration. Confirm that the 16V rating and 5.5A hold current align with the target circuit design parameters. Ensure compliance with RoHS3 standards if environmental regulations apply to the final assembly.

Ptc Resettable Fuses Selection Notes

Select this component when a radial leaded form factor is required for high-current DC protection. The 16V rating limits suitability to low-voltage systems. Consider the 0.07 Ohm resistance impact on power loss. Evaluate thermal derating requirements based on the specified operating temperature range.

Ptc Resettable Fuses Part Context

This part belongs to the 0ZRN series of polymeric PTC resettable fuses from Bel Fuse. The series offers various hold currents and voltage ratings tailored for different circuit protection needs. The radial disc format facilitates automated insertion or manual soldering processes.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other 16V, 5.5A radial PTC fuses from manufacturers such as Littelfuse or Bourns. Verify dimensional compatibility and electrical characteristics before substitution.