MINISMDC050F-2

$0.37

Description：PTC RESET FUSE 24V 500MA 1812
Series：PolySwitch®, miniSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:4a005a18d6e5 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 24V 500MA 1812
Series：PolySwitch®, miniSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：24V
Current - Hold (Ih) (Max)：500 mA
Current - Trip (It)：1:00 AM
Current - Max：100 A
Time to Trip：150 ms
Resistance - Initial (Ri) (Min)：150 mOhms
Resistance - Post Trip (R1) (Max)：1 Ohms
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)：0.024" (0.62mm)
Lead Spacing：-

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MINISMDC050F-2

Overview

The Littelfuse MINISMDC050F-2 is a PolySwitch resettable fuse from the miniSMDC series, designed for surface mount applications. It features a hold current of 500 mA and a trip current of 1 A at maximum voltage of 24 VDC. The device offers a maximum rated current of 100 A and has a resistance range of 0.15 to 1 Ohm. Packaged in an 1812 (4532 metric) case with dimensions of 4.73 mm length, 3.41 mm width, and 0.62 mm height, it operates within a temperature range of -40 C to +85 C and dissipates 800 mW.

Feature Summary

Provides automatic circuit protection against overcurrent and overheating conditions through positive temperature coefficient technology.
Enables repeated use after fault clearance, reducing the need for component replacement and maintenance interventions.
Features rapid tripping response times combined with low on-resistance for efficient power management.

Applications

Portable electronic devices requiring compact overcurrent protection
Battery packs and power supply circuits
Peripheral interfaces and data line protection

Procurement Notes

Verify the specific suffix designation to ensure alignment with required voltage ratings and package variants. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly integration. Cross-reference official datasheets for precise thermal derating curves and maximum working voltage constraints to guarantee operational reliability under specified load conditions.

Selection Notes

Select this component when space-constrained designs require a resettable fuse with a 500 mA hold current and 24 VDC rating. Evaluate the 1812 footprint compatibility against available PCB real estate. Consider the 800 mW power dissipation capability and operating temperature range to ensure suitability for the intended thermal environment and current load requirements.

Part Context

This part belongs to the miniSMDC series of PolySwitch resettable fuses manufactured by Littelfuse. The series utilizes polymer positive temperature coefficient materials to provide reliable circuit protection. The miniSMDC variant specifically targets surface mount applications, offering a balance between current handling capacity and physical size for modern electronics.