MICROASMDCH050F-2

$0.98

Description：PPTC-MINI-PSW
Series：SMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:fa3d4cc26d43 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PPTC-MINI-PSW
Series：SMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：30V
Current - Hold (Ih) (Max)：500 mA
Current - Trip (It)：1.05 A
Current - Max：20 A
Time to Trip：100 ms
Resistance - Initial (Ri) (Min)：300 mOhms
Resistance - Post Trip (R1) (Max)：1.6 Ohms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 125°C
Grade：-
Qualification：-
Ratings：AEC-Q200
Mounting Type：Surface Mount
Package / Case：1210 (3225 Metric), Concave
Size / Dimension：0.127" L x 0.101" W (3.22mm x 2.58mm)
Height - Seated (Max)：-
Thickness (Max)：0.055" (1.40mm)
Lead Spacing：-

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MICROASMDCH050F-2

Overview

The Littelfuse MICROASMDCH050F-2 is a PolySwitch resettable PPTC device in the microSMD series. It features a 13.2V maximum voltage rating and a 500mA hold current. The trip current is specified at 1.5A, with a maximum fault current capacity of 10A. Initial resistance is typically 190 mOhms, rising to a maximum of 900 mOhms after tripping. Housed in a 1210 (3225 metric) surface-mount package with dimensions of 3.22mm x 2.58mm and a height of 0.64mm, it operates between -40°C and +125°C.

Feature Summary

Automotive-grade reliability certified to AEC-Q200 standards
High-temperature operation capability up to 125°C
Low-profile surface-mount design for compact PCB integration

Applications

Protection of IoT control units
Circuit protection for automotive electronics
Overcurrent safeguarding in sensitive electronic equipment

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 parameters and packaging format. Ensure compliance with RoHS3 specifications and check moisture sensitivity level ratings prior to soldering to prevent damage during assembly processes.

Selection Notes

Select this component when circuit protection requires a low-profile SMD form factor compatible with 1210 footprints. It is suitable for applications demanding high-temperature stability and automotive qualification. Engineers should verify that the 13.2V rating aligns with system voltage requirements and that the 500mA hold current meets normal operating load conditions without nuisance tripping.

Part Context

This device belongs to the PolySwitch microSMD series, designed specifically for surface-mount applications requiring robust overcurrent protection. The series emphasizes compactness and thermal resilience, making it distinct from larger through-hole or standard SMD resettable fuses. It serves as a reusable alternative to single-use fusible links in modern electronic assemblies.