ASMD150F/33-2

Ptc Resettable Fuses Overview

The Littelfuse ASMD150F/33-2 is a surface-mount PolySwitch resettable PTC fuse designed for automotive applications. It features a maximum holding current of 1.5 A and a maximum voltage rating of 33 V. The device has a trip current of 3.0 A and a maximum fault current of 40 A. Initial resistance is typically 60 mΩ, rising to a maximum of 250 mΩ after tripping. It utilizes a 2-SMD package with dimensions of 7.50 mm x 5.10 mm.

Ptc Resettable Fuses Feature Summary

• Provides automatic overcurrent protection without requiring replacement after fault clearance
• Complies with AEC-Q200 qualification standards for automotive reliability
• Designed for surface mount installation on printed circuit boards

Ptc Resettable Fuses Applications

• Automotive secondary circuit protection
• Compact auto-electronics systems
• Overcurrent protection for sensitive electronic components

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix '-2' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure the component meets AEC-Q200 requirements for your target automotive application. Cross-reference the part number alias ASMDC150F/33-2 if sourcing from distributors using alternate nomenclature.

Ptc Resettable Fuses Selection Notes

Select this component when a 1.5 A holding current and 33 V rating are required for space-constrained automotive designs. Compare initial resistance values against system leakage constraints. Verify that the 40 A maximum fault current capability aligns with the prospective short-circuit conditions in the protected circuit branch.

Ptc Resettable Fuses Part Context

This device belongs to the ASMD series of self-recovery polymer positive temperature coefficient devices. These components offer a compact alternative to traditional fuses by automatically restoring circuit continuity once the overcurrent condition is removed. The series is engineered to withstand harsh automotive environments while providing reliable circuit protection.

Ptc Resettable Fuses Replacement Considerations

The part number alias ASMDC150F/33-2 refers to the same component. Verify pinout compatibility and thermal characteristics when substituting with other ASMD series variants or competing automotive-grade PTC fuses.