MICROSMD175F-2

$0.50

Description：PTC RESET FUSE 6V 1.75A 1210
Series：PolySwitch®, microSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:2014e315cced Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 6V 1.75A 1210
Series：PolySwitch®, microSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：6V
Current - Hold (Ih) (Max)：1.75 A
Current - Trip (It)：3.5 A
Current - Max：40 A
Time to Trip：800 ms
Resistance - Initial (Ri) (Min)：25 mOhms
Resistance - Post Trip (R1) (Max)：80 mOhms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Surface Mount
Package / Case：1210 (3225 Metric), Concave
Size / Dimension：0.127" L x 0.102" W (3.22mm x 2.58mm)
Height - Seated (Max)：-
Thickness (Max)：0.030" (0.76mm)
Lead Spacing：-

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MICROSMD175F-2

Overview

The MICROSMD175F-2 is a surface-mount polymer PTC resettable fuse from the Littelfuse microSMD series. It features a maximum voltage rating of 6 VDC and a hold current of 175 mA. The trip current is specified at 350 mA, with a maximum fault current capacity of 40 A. The device operates within a temperature range of -40°C to +85°C and utilizes a 1210 (3225 metric) package footprint.

Feature Summary

Provides automatic circuit protection through reversible resistance increase during overcurrent events
Designed for compact surface-mount integration in space-constrained electronic assemblies

Applications

Portable consumer electronics power input protection
Battery-powered device circuit safeguarding
Communication equipment interface protection

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number with official Littelfuse documentation. Confirm that the specific suffix matches the required electrical characteristics and packaging configuration. Ensure compliance with relevant safety certifications such as UL or TUV if mandated by the target application standards.

Selection Notes

Select this component based on the 6VDC voltage limit and 175mA hold current requirements. Evaluate the thermal environment to ensure operation remains within the -40°C to +85°C range. Consider the physical dimensions of the 1210 package for PCB layout compatibility and verify that the 40A maximum fault current exceeds potential surge levels.

Part Context

This component belongs to the microSMD family of resettable fuses, which are engineered for high-density surface-mount applications. The series offers various current ratings within a standardized small outline package, allowing designers to maintain consistent board layouts while adjusting protection thresholds for different circuit branches.