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Product Detailed Parameters
- Description：POLYSWITCH RESETTABLE PPTC
- Series：POLY-FUSE®, 0603L
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：15V
- Current - Hold (Ih) (Max)：80 mA
- Current - Trip (It)：200 mA
- Current - Max：40 A
- Time to Trip：1 s
- Resistance - Initial (Ri) (Min)：2.5 Ohms
- Resistance - Post Trip (R1) (Max)：12 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 0.031" W (1.60mm x 0.80mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.024" (0.60mm)
- Lead Spacing：-
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Overview
The Littelfuse 0603L008YR is a PolySwitch resettable PPTC device in a 0603 surface-mount package. It features a hold current of 80 mA and a trip current of 200 mA, with a maximum voltage rating of 15 VDC. The component has a maximum resistance of 12 Ohms and a rated fault current of 40 A. It operates within a temperature range of -40°C to +85°C and dissipates up to 500 mW. Dimensions are 1.6 mm length, 0.8 mm width, and 0.5 mm height.
Feature Summary
- Provides reliable overcurrent protection for circuits by raising resistance as it heats.
- Automatically resets to low resistance after the fault condition clears and the device cools.
- Designed for surface mount assembly compatible with standard reflow soldering processes.
Applications
- Protection for portable electronics and battery-powered devices
- Overcurrent safeguarding for telecommunications equipment
- Circuit protection for automotive applications
Procurement Notes
Verify that the specific suffix YR matches the required tape and reel configuration for your manufacturing line. Confirm RoHS compliance status through official Littelfuse documentation prior to integration. Ensure storage conditions maintain moisture sensitivity level integrity until soldering occurs.
Selection Notes
Select this component when circuit design requires a compact footprint with a 15 VDC limit. The 80 mA hold current suits low-power signal lines. Verify that the 200 mA trip threshold aligns with normal operating peaks without nuisance tripping during transient loads.
Part Context
This part belongs to the 0603L series of PolySwitch resettable fuses. It utilizes polymer positive temperature coefficient technology to provide solid-state protection. The series is designed to replace traditional fusible linkers in space-constrained printed circuit board layouts.
Replacement Considerations
Consult official Littelfuse substitution guides for verified equivalents. Generic cross-references may not match the specific 12 Ohm resistance or 15 VDC rating requirements.
