0603L025YR

$0.92

Description：PTC RESET FUSE 9V 250MA 0603
Series：POLY-FUSE®, 0603L
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:7839b0ff22a7 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 9V 250MA 0603
Series：POLY-FUSE®, 0603L
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：9V
Current - Hold (Ih) (Max)：250 mA
Current - Trip (It)：550 mA
Current - Max：40 A
Time to Trip：80 ms
Resistance - Initial (Ri) (Min)：500 mOhms
Resistance - Post Trip (R1) (Max)：3 Ohms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Surface Mount
Package / Case：0603 (1608 Metric), Concave
Size / Dimension：0.063" L x 0.032" W (1.60mm x 0.80mm)
Height - Seated (Max)：-
Thickness (Max)：0.030" (0.75mm)
Lead Spacing：-

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0603L025YR

Overview

The Littelfuse 0603L025YR is a surface-mount polymer PTC resettable fuse from the POLY-FUSE 0603L series. It features a hold current of 250 mA and a trip current of 550 mA, rated for a maximum voltage of 9 VDC. The device has a maximum resistance of 3 Ohms after tripping and a minimum initial resistance of 500 mOhms. It supports a maximum fault current of 40 A and operates within a temperature range of -40°C to +85°C. The component is housed in a compact 0603 (1608 metric) package with dimensions of 1.60mm x 0.80mm.

Feature Summary

Provides reliable overcurrent protection through automatic resistance increase upon heating during fault conditions.
Offers resettable functionality that restores circuit continuity without manual replacement after cooling.
Features a compact surface-mount footprint designed for space-constrained printed circuit board layouts.

Applications

Protection of portable electronic devices and mobile phone circuits
Overcurrent safeguarding for USB peripheral connections
Circuit protection in consumer electronics and battery-powered gadgets

Procurement Notes

Verify the specific ordering suffix 'YR' corresponds to the required tape and reel packaging configuration as indicated by distributor part numbers such as F2902TR-ND. Confirm that the 0603L series datasheet specifications align with the target application's voltage and current requirements before finalizing procurement orders.

Selection Notes

Select this component when a low-profile surface-mount solution is required for 9V DC circuits. Ensure the design accommodates the 0603 package dimensions and that the 250 mA hold current matches the normal operating load. Consider the thermal environment to ensure the device trips correctly within the specified -40°C to +85°C operating range.

Part Context

This part belongs to the POLY-FUSE 0603L series, which provides ultra-small resettable fuses for modern electronics. The series is designed to replace traditional fusible links in applications requiring frequent or automatic recovery from overcurrent events while maintaining a minimal PCB footprint.