MGP420D

Description：PTC RESET FUSE LOWRHO STRAP
Series：-
Mfr：Littelfuse Inc.
Package：Bag

SKU:3e38dbf01d04 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE LOWRHO STRAP
Series：-
Mfr：Littelfuse Inc.
Package：Bag
Type：-
Voltage - Max：-
Current - Hold (Ih) (Max)：-
Current - Trip (It)：-
Current - Max：-
Time to Trip：-
Resistance - Initial (Ri) (Min)：-
Resistance - Post Trip (R1) (Max)：-
Resistance - 25°C (Typ)：-
Operating Temperature：-
Grade：-
Qualification：-
Ratings：-
Mounting Type：-
Package / Case：-
Size / Dimension：-
Height - Seated (Max)：-
Thickness (Max)：-
Lead Spacing：-

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MGP420D

Overview

The MGP420D is a PTC resettable fuse manufactured by Littelfuse Inc. It features a low resistance strap design intended for circuit protection applications. The product status is listed as obsolete, indicating it is no longer in active production. This component serves as a reusable alternative to traditional fuses, offering overcurrent protection through self-resetting functionality.

Feature Summary

Provides reusable overcurrent protection via PTC technology
Features a low resistance strap design for efficient current handling
Functions as a resettable fuse alternative to single-use components

Applications

Procurement Notes

Verify availability carefully as the MGP420D is officially marked obsolete. Sourcing may require checking secondary distributors or surplus markets. Confirm lead times and authenticity with suppliers. Consider end-of-life implications for long-term projects. Ensure replacement strategies are evaluated due to discontinuation status.

Selection Notes

Select only if legacy compatibility is required. Evaluate thermal performance requirements against available alternatives. Check voltage and current ratings against circuit needs. Assess space constraints for the specific package type. Review datasheet limitations for operating temperature ranges before integration into new designs.

Part Context

This component belongs to Littelfuse's circuit protection portfolio, specifically within the PTC resettable fuse category. It is designed to protect electronic circuits from overcurrent conditions. The device operates by increasing resistance when heated by excessive current, thereby limiting flow until cooling occurs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Littelfuse official resources for current series replacements. Verify electrical parameters match before substituting with similar PTC devices from other manufacturers.