MICROSMD005-2

$0.50

Description：PTC RESET FUSE 30V 50MA 1210
Series：PolySwitch®, microSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:16552182644f Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 30V 50MA 1210
Series：PolySwitch®, microSMD
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：30V
Current - Hold (Ih) (Max)：50 mA
Current - Trip (It)：150 mA
Current - Max：10:00 AM
Time to Trip：1.5 s
Resistance - Initial (Ri) (Min)：3.6 Ohms
Resistance - Post Trip (R1) (Max)：50 Ohms
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)：0.033" (0.85mm)
Lead Spacing：-

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MICROSMD005-2

Overview

The MICROSMD005-2 is a surface-mount polymer PTC resettable fuse from the PolySwitch microSMD series, manufactured by Littelfuse Inc. Designed for circuit protection, this component features a hold current of 50 mA and a trip current of 150 mA. It operates with a maximum voltage rating of 30 VDC and can withstand a maximum fault current of 10 A. The device is housed in a compact 1210 (3225 metric) package with an initial resistance of 50 ohms. It is qualified to AEC-Q200 standards and functions within a temperature range of -40°C to +85°C.

Feature Summary

Provides automatic resettable overcurrent protection using polymer positive temperature coefficient technology.
Engineered for surface-mount assembly on printed circuit boards.
Qualified for automotive electronic applications under AEC-Q200 standards.

Applications

Automotive electronics circuits
Portable consumer devices
Communication equipment

Procurement Notes

Verify the specific suffix and revision level against the official Littelfuse datasheet to ensure compatibility with design requirements. Confirm that the AEC-Q200 qualification status matches the intended application environment. Check for any recent packaging changes or material compliance updates prior to procurement.

Selection Notes

Select this component when a low-current, high-resistance resettable fuse is required for sensitive automotive or industrial circuits. Ensure the operating current remains below the 50 mA hold current threshold during normal operation. Verify that the 1210 footprint fits the PCB layout constraints and that the 30 VDC rating exceeds the system voltage.

Part Context

This part belongs to the microSMD family of resettable fuses, which are designed for space-constrained applications requiring reliable circuit protection. The series offers various current ratings and package sizes to accommodate different circuit demands while maintaining automotive-grade reliability standards.

Replacement Considerations

Consult the official Littelfuse replacement guide for verified cross-reference part numbers. Do not substitute with generic PTCs without verifying electrical parameters and physical dimensions.