0ZCG0125AF2B

Ptc Resettable Fuses Overview

The 0ZCG0125AF2B is a surface-mount PPTC resettable fuse from Bel Fuse, designed for circuit protection in compact electronics. It features a 1812 (4532 metric) package with dimensions of 4.55mm length, 3.24mm width, and 1.05mm height. The device has a hold current of 1.25A and a trip current of 2.5A. It supports a maximum voltage of 16VDC and offers low initial resistance of 0.05 Ohms minimum and 0.14 Ohms maximum. Operating temperatures range from -40°C to +85°C, with a typical trip time of 400ms.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through polymer positive temperature coefficient technology that resets automatically after fault clearance.
• Features a low-profile 1812 surface-mount footprint suitable for space-constrained printed circuit board layouts.
• Ensures rapid circuit interruption with fast trip characteristics to minimize damage during fault conditions.

Ptc Resettable Fuses Applications

• Portable consumer electronic devices requiring compact circuit protection
• Automotive infotainment and control modules
• Industrial control systems and instrumentation
• Telecommunications equipment and networking hardware

Ptc Resettable Fuses Procurement Notes

Verify component authenticity by checking the manufacturer marking against official datasheet specifications. Confirm the specific suffix matches the required voltage and current ratings, as variations exist within the series. Ensure storage conditions comply with moisture sensitivity level requirements to maintain solderability and performance integrity prior to assembly.

Ptc Resettable Fuses Selection Notes

Select this component when a low-profile SMT solution is required for 16VDC circuits with a 1.25A hold current. Compare the 1812 package size against available board real estate constraints. Evaluate the 0.14 Ohms maximum resistance to ensure it meets system power loss tolerances. Consider the 400ms trip time relative to the transient immunity requirements of the protected load.

Ptc Resettable Fuses Part Context

This part belongs to the 0ZCG series of self-resetting fuses manufactured by Bel Fuse Inc. The series utilizes polymer PTC technology to provide reusable overcurrent protection. The 0ZCG line is characterized by its small chip size and compliance with environmental directives, offering a reliable alternative to traditional one-time fuses in modern electronic assemblies.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other 1812 PPTC fuses with identical 1.25A hold current and 16VDC rating. Verify that replacement parts match the 0.14 Ohms maximum resistance and 400ms trip time specifications. Ensure the alternative component maintains the same AEC-Q200 qualification if automotive applications are involved.