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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 350MA 0805
- Series：POLY-FUSE®, 0805L
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Type：Polymeric
- Voltage - Max：6V
- Current - Hold (Ih) (Max)：350 mA
- Current - Trip (It)：750 mA
- Current - Max：100 A
- Time to Trip：100 ms
- Resistance - Initial (Ri) (Min)：250 mOhms
- Resistance - Post Trip (R1) (Max)：1.2 Ohms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：0805 (2012 Metric), Concave
- Size / Dimension：0.083" L x 0.053" W (2.10mm x 1.35mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.030" (0.75mm)
- Lead Spacing：-
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Overview
The Littelfuse 0805L035YRHF is a PolySwitch resettable PTC fuse designed for surface mount applications. It features a hold current of 350 mA and a trip current of 750 mA, providing overcurrent protection in circuits rated up to 6 VDC. The device has a maximum resistance of 1.2 Ohms and a power dissipation rating of 500 mW. It operates within a temperature range of -40°C to +85°C and is housed in a compact 0805 (2012 metric) package with dimensions of 2.2 mm length, 1.5 mm width, and 0.75 mm height.
Feature Summary
- Provides resettable overcurrent protection using polymeric positive temperature coefficient technology
- Designed for surface mount PCB integration in space-constrained environments
- Compatible with high-temperature soldering processes for automated assembly
Applications
- Portable consumer electronics circuit protection
- Automotive electronic module safeguarding
- Industrial control system overcurrent defense
Procurement Notes
Verify the specific ordering suffix against official Littelfuse documentation to ensure correct voltage and current ratings. Confirm RoHS compliance status through the manufacturer's certified datasheet before procurement. Ensure the component matches the required 0805 footprint and thermal characteristics for the target application design.
Selection Notes
Select this component based on the 350 mA hold current requirement and 6 VDC maximum voltage limit. Evaluate the 1.2 Ohm initial resistance impact on circuit performance. Consider the 0805 package size constraints and the -40°C to +85°C operating temperature range for environmental suitability.
Part Context
This part belongs to the Littelfuse 0805L Series of PolyFuse resettable PTC devices. The series offers surface mount overcurrent protection solutions ranging from 0402 to 3425 packages. These components are engineered for applications requiring reliable, resettable protection where board space is limited.
Replacement Considerations
Direct substitutes include other 0805L series variants with matching electrical specifications. Verify equivalent hold current, trip current, and voltage ratings when considering alternative part numbers from the same manufacturer family.
