MINISMDC300F-2

$0.55

Description：PTC RESET FUSE 6V 3A 1812
Series：PolySwitch®, miniSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:c1541ebc1beb Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 6V 3A 1812
Series：PolySwitch®, miniSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：6V
Current - Hold (Ih) (Max)：3:00 AM
Current - Trip (It)：6:00 AM
Current - Max：100 A
Time to Trip：5 s
Resistance - Initial (Ri) (Min)：11 mOhms
Resistance - Post Trip (R1) (Max)：36 mOhms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Surface Mount
Package / Case：1812 (4532 Metric), Concave
Size / Dimension：0.179" L x 0.128" W (4.55mm x 3.24mm)
Height - Seated (Max)：-
Thickness (Max)：0.030" (0.76mm)
Lead Spacing：-

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MINISMDC300F-2

Overview

The MINISMDC300F-2 is a PolySwitch resettable fuse from the miniSMD series, designed for surface-mount PCB applications. It features a 1812 (4532 metric) package with SMD/SMT termination. The device maintains a hold current of 3.0 A and trips at 6.0 A, supporting a maximum voltage of 24 VDC. It offers a high fault current rating of 40 A max and exhibits a typical resistance of 72 mOhms. Operating within a temperature range of -40°C to +85°C, it includes moisture sensitivity classification and is supplied in reel packaging.

Feature Summary

Provides automatic circuit protection through self-resetting polymeric positive temperature coefficient technology
Enables compact surface-mount integration via standardized 1812 footprint dimensions
Delivers high fault current interruption capability for robust overcurrent defense

Applications

Portable electronic devices requiring space-constrained overcurrent protection
Consumer electronics circuits needing surface-mount resettable fuses
Industrial control boards utilizing standard SMD assembly processes

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number Littelfuse MINISMDC300F-2 against official datasheets. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Ensure the supplier provides valid traceability documentation matching the specific reel packaging format to guarantee quality standards during manufacturing integration.

Selection Notes

Select this component when circuit design requires a 3.0 A hold current within a 1812 package constraint. Evaluate thermal management requirements against the specified operating temperature limits. Compare trip characteristics and voltage ratings against alternative series members to ensure compatibility with existing board layouts and electrical specifications without compromising safety margins.

Part Context

This component belongs to the miniSMD product family, representing a specialized line of resettable fuses engineered for modern printed circuit board assemblies. The series emphasizes reduced physical volume while maintaining reliable protection performance. It utilizes advanced polymer materials to deliver consistent response times under various fault conditions across diverse industrial and consumer environments.