RALT-300

Ptc Resettable Fuses Overview

The OptiFuse RALT-300 is a polymeric PTC resettable fuse designed for battery strap applications. It features a hold current of 3A and a maximum voltage rating of 24V. The device operates within a temperature range of -40°C to 85°C, with an operation current span of 700mA to 3.4A. It has a maximum interrupting capacity (Imax) of 100A. The component utilizes a surface-mount design with specific dimensional parameters including a length range of 28.4mm to 31.8mm and a width range of 6.0mm to 6.6mm.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection for rechargeable battery packs in low-voltage devices
• Features a polymeric positive temperature coefficient construction for resettable circuit protection
• Designed as an interchangeable surface-mount component for integration into mobile devices and smartphones

Ptc Resettable Fuses Applications

• Rechargeable battery packs for low-voltage devices
• Mobile device circuit protection
• Smartphone battery overcurrent protection

Ptc Resettable Fuses Procurement Notes

Verify the specific datasheet version when sourcing the RALT-300 to ensure alignment with required dimensional tolerances and electrical ratings. Confirm that the supplier provides official documentation from OptiFuse to validate the 24V maximum voltage and 3A hold current specifications. Ensure the procurement process accounts for the surface-mount package type and appropriate handling procedures for polymeric PTC components.

Ptc Resettable Fuses Selection Notes

Select the RALT-300 when designing circuits requiring resettable protection for 24V battery systems with a nominal 3A operating current. Consider its surface-mount form factor for compact mobile device integration. Evaluate the -40°C to 85°C operating temperature range against environmental conditions. Verify compatibility with the 100A maximum interrupting capacity for fault scenarios in low-voltage applications.

Ptc Resettable Fuses Part Context

The RALT-300 belongs to the OptiFuse RALT series of resettable fuses, specifically engineered for battery strap applications. This series utilizes polymeric positive temperature coefficient technology to provide reusable overcurrent protection. The RALT-300 variant is tailored for low-voltage environments, offering a balance of high current handling and compact surface-mount dimensions suitable for portable electronics.

Ptc Resettable Fuses Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other OptiFuse RALT series variants only if voltage and current ratings align with system requirements.