2920L030DR

Ptc Resettable Fuses Overview

The Littelfuse 2920L030DR is a surface-mount polymeric PTC resettable fuse designed for overcurrent protection in medium-voltage applications up to 60VDC. It features a hold current of 0.3A and a trip current of 1.5A, with a maximum fault current rating of 40A. The device exhibits an initial resistance of 15 Ohms maximum and a post-trip resistance of 85 Ohms maximum. Housed in a low-profile 2920 (7351 metric) concave package measuring 7.35mm x 5.12mm x 1.25mm, it operates within a temperature range of -40°C to +85°C and carries cURus and TUV certifications.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection without manual intervention
• Designed specifically for surface-mount PCB integration
• Capable of handling high fault currents up to 40A

Ptc Resettable Fuses Applications

• Medium voltage circuit protection systems
• Portable electronic devices requiring compact fusing
• Automotive electronics modules

Ptc Resettable Fuses Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified partners. Confirm RoHS compliance status and moisture sensitivity level (MSL 2A) prior to soldering. Ensure storage conditions meet humidity requirements to prevent degradation of the polymer material before reflow processes.

Ptc Resettable Fuses Selection Notes

Select this model when a 0.3A hold current is required for circuits operating at voltages up to 60VDC. The 2920 footprint suits space-constrained designs needing robust 40A fault tolerance. Consider thermal derating curves for high-temperature environments exceeding standard ratings.

Ptc Resettable Fuses Part Context

Part of the POLY-FUSE 2920L series, which offers low-profile solutions for consumer and industrial electronics. This series emphasizes reliability and compactness compared to traditional fusible link technologies, supporting automated assembly lines.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include the 2920L030/60DR variant for different voltage configurations within the same series. Verify electrical parameters match exactly before replacing to ensure circuit safety integrity.

Ptc Resettable Fuses FAQ

What is the maximum voltage rating for the 2920L030DR?

The maximum voltage rating is 60VDC.

Does the 2920L030DR require manual replacement after tripping?

No, it is a resettable fuse that automatically returns to a low-resistance state once the fault condition is removed and the device cools down.