SMD1812P075TSA/24

$0.16

Description：PTC RESET FUSE 24V 750MA 1812
Series：POLY-FUSE®, SMD1812
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR)

SKU:961da3900d89 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

SMD1812P075TSA/24 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 24V 750MA 1812. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for SMD1812P075TSA/24

Description：PTC RESET FUSE 24V 750MA 1812
Series：POLY-FUSE®, SMD1812
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR)
Type：Polymeric
Voltage - Max：24V
Current - Hold (Ih) (Max)：750 mA
Current - Trip (It)：1.5 A
Current - Max：40 A
Time to Trip：200 ms
Resistance - Initial (Ri) (Min)：110 mOhms
Resistance - Post Trip (R1) (Max)：290 mOhms
Operating Temperature：-40°C ~ 85°C
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)：0.045" (1.15mm)
Lead Spacing：-

Ptc Resettable Fuses datasheet and documents for SMD1812P075TSA/24

SMD1812P075TSA/24

Ptc Resettable Fuses Overview

The Littelfuse SMD1812P075TSA/24 is a surface-mount PolySwitch resettable PPTC fuse in the miniSMDC series. It features a 24V DC voltage rating, 0.75A hold current, and 1.5A trip current. The device has a maximum resistance of 290mΩ and minimum resistance of 0.09Ω. Dimensions are 4.53mm x 3.20mm x 1.46mm. It operates between -40°C and +85°C with a 0.8W power dissipation and 40A fault current rating.

Ptc Resettable Fuses Feature Summary

Provides reliable overcurrent protection for automotive circuits by raising resistance to limit current flow during fault conditions.
Automotive-grade component certified to AEC-Q200 standards for high reliability in demanding environments.
Offers compact surface-mount packaging optimized for space-constrained PCB layouts.

Ptc Resettable Fuses Applications

Protection of actuators, screens, and small motors in commercial and passenger vehicles
Overcurrent safeguarding for battery strap applications
Circuit protection for telephony and networking equipment

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm exact electrical tolerances and package variations. Ensure the selected variant matches the required voltage and current ratings for the target application circuit. Confirm compliance with RoHS directives and AEC-Q200 automotive qualification requirements prior to integration.

Ptc Resettable Fuses Selection Notes

Select this component based on the 24V DC system voltage and 0.75A continuous current requirement. Evaluate thermal derating curves to ensure performance stability within the -40°C to +85°C operating range. Consider the 1.5A trip threshold for appropriate fault response timing relative to downstream component sensitivity.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse miniSMDC series of PolySwitch resettable fuses. These devices utilize solid-state polymer technology to provide reusable overcurrent protection. The series is designed for surface-mount assembly, offering a compact alternative to traditional axial leaded fuses in modern electronic designs.