MICROSMDCH050F-02

$0.78

Description：PTC RESET FUSE 13.2V 500MA 1210
Series：PolySwitch®, microSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:057a4199c340 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 13.2V 500MA 1210
Series：PolySwitch®, microSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：13.2V
Current - Hold (Ih) (Max)：500 mA
Current - Trip (It)：1.5 A
Current - Max：10:00 AM
Time to Trip：50 ms
Resistance - Initial (Ri) (Min)：190 mOhms
Resistance - Post Trip (R1) (Max)：900 mOhms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 125°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)：0.025" (0.64mm)
Lead Spacing：-

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MICROSMDCH050F-02

Overview

The MICROSMDCH050F-02 is a surface-mount polymer PTC resettable fuse from the microSMD series. It features a hold current of 500 mA and a trip current of 1.5 A, with a maximum voltage rating of 13.2 VDC. The device operates within a temperature range of -40°C to +125°C and has a maximum power dissipation of 1.2 W. Its initial resistance is typically 190 mOhms, rising to a maximum of 900 mOhms after tripping. The component is housed in a 1210 (3225 metric) package with dimensions of 3.22 mm x 2.58 mm and a maximum height of 0.64 mm.

Feature Summary

Provides overcurrent protection for sensitive electronic circuits through self-resetting polymer technology.
Designed for high-temperature automotive applications with an operating range up to 125°C.
Offers compact surface-mount form factor suitable for space-constrained PCB layouts.

Applications

Automotive circuit protection
Portable electronics
Communication equipment

Procurement Notes

Verify the specific part number against Littelfuse official documentation to confirm electrical ratings and package details. Ensure compatibility with the target application's voltage and current requirements. Check for moisture sensitivity level (MSL) handling instructions during storage and assembly. Confirm RoHS compliance status if required by project specifications.

Selection Notes

Select this component when a 500 mA hold current and 13.2 VDC rating are required for automotive or industrial environments. Consider the 1210 footprint for board space constraints. Evaluate the thermal environment to ensure operation within the specified -40°C to +125°C range. Compare trip characteristics against circuit fault currents to ensure adequate protection speed.

Part Context

This device belongs to the microSMD series of PolySwitch resettable fuses. It is designed as a solid-state alternative to traditional fusible links. The series provides reliable overcurrent protection for various commercial and passenger vehicle applications. It serves as a reusable circuit protection element that limits current flow during fault conditions.