MINISMD075-2

$0.55

Description：PTC RESET FUSE 750MA 1812
Series：PolySwitch®
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:2e456ba0bd47 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 750MA 1812
Series：PolySwitch®
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：-
Voltage - Max：-
Current - Hold (Ih) (Max)：750 mA
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：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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MINISMD075-2

Overview

The Littelfuse MINISMD075-2 is a PolySwitch resettable PTC fuse in the miniSMDC series, designed for surface-mount applications. It features a hold current of 0.75 A and a trip current of 1.5 A with a maximum voltage rating of 13.2 VDC. The device offers a high fault current capacity of 100 A and operates within a temperature range of -40°C to +85°C. Physical dimensions are 4.73 mm in length, 3.41 mm in width, and 0.62 mm in height. Resistance ranges from 0.11 Ω minimum to 450 mΩ maximum, with a power dissipation of 1 W.

Feature Summary

Provides automatic circuit protection through reversible resistance increase during overcurrent events
Utilizes polymer technology for rapid response to fault conditions without permanent damage
Supports compact surface-mount integration via standard 1812 footprint packaging

Applications

Portable electronic device battery pack protection
USB peripheral interface circuit safeguarding
Low-voltage data line overcurrent prevention

Procurement Notes

Verify component authenticity by cross-referencing manufacturer part numbers against official Littelfuse documentation. Confirm that specifications match the required electrical parameters for the target application. Ensure compliance with RoHS standards and check for moisture sensitivity handling requirements during storage and assembly processes.

Selection Notes

Select this component when space constraints require a low-profile surface-mount solution. Evaluate thermal derating curves to ensure reliable operation at elevated ambient temperatures. Compare trip characteristics against circuit load profiles to prevent nuisance tripping while maintaining adequate fault protection levels for sensitive downstream components.

Part Context

This device belongs to the miniSMDC family of resettable fuses, representing a compact variant optimized for dense PCB layouts. It complements larger SMD series devices by offering similar protective functionality in a significantly reduced physical volume suitable for modern portable electronics.