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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 100MA 0402
- Series：POLY-FUSE®, LoRho
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：6V
- Current - Hold (Ih) (Max)：100 mA
- Current - Trip (It)：300 mA
- Current - Max：40 A
- Time to Trip：1 s
- Resistance - Initial (Ri) (Min)：150 mOhms
- Resistance - Post Trip (R1) (Max)：2 Ohms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：0402 (1005 Metric), Concave
- Size / Dimension：0.039" L x 0.020" W (1.00mm x 0.50mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.024" (0.60mm)
- Lead Spacing：-
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Overview
The Littelfuse 0402L010SLKR is a POLY-FUSE LoRho series polymer PTC resettable fuse designed for surface mount applications. It features a maximum voltage rating of 6 VDC and a hold current of 100 mA, with a trip current of 200 mA. The device offers a maximum fault current rating of 40 A and an initial resistance of 3 Ohms. Housed in a compact 0402 (1005 metric) package with dimensions of 1.00 mm x 0.50 mm and a height of 0.60 mm, it operates within a temperature range of -40°C to +85°C and dissipates 500 mW.
Feature Summary
- Utilizes Low Rho polymer technology to achieve low on-resistance for minimal power loss during normal operation.
- Provides automatic circuit protection by increasing resistance significantly upon overcurrent conditions.
- Supports reflow and wave soldering processes for automated surface mount assembly.
Applications
- Portable electronic devices requiring compact circuit protection
- Consumer electronics circuits
- Data port protection
Procurement Notes
Verify the specific suffix 'SLKR' against official Littelfuse documentation to confirm tape and reel packaging specifications. Ensure that the selected distributor source provides valid RoHS compliance data and authentic component traceability prior to purchase.
Selection Notes
Select this component when a 0402 footprint is required for low-voltage DC circuits. Confirm that the 100 mA hold current aligns with the application's steady-state load requirements and that the 6 VDC rating matches the system voltage.
Part Context
This part belongs to the POLY-FUSE LoRho family of resettable fuses from Littelfuse. The series is characterized by its small form factor and low resistance profile, intended for space-constrained modern electronics where reliable overcurrent protection is critical.
Replacement Considerations
Consult official Littelfuse substitution guides for verified equivalents. Cross-reference parameters such as hold current, voltage rating, and package dimensions before considering alternative manufacturers.
