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RXEF375-2 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 72V 3.75A RADIAL. Review the specifications below when checking this part for your BOM.
Ptc Resettable Fuses specifications for RXEF375-2
- Description：PTC RESET FUSE 72V 3.75A RADIAL
- Series：PolySwitch®, RXEF
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Type：Polymeric
- Voltage - Max：72V
- Current - Hold (Ih) (Max)：3.75 A
- Current - Trip (It)：7.5 A
- Current - Max：40 A
- Time to Trip：24 s
- Resistance - Initial (Ri) (Min)：30 mOhms
- Resistance - Post Trip (R1) (Max)：80 mOhms
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：1.071" Dia x 0.118" T (27.20mm x 3.00mm)
- Height - Seated (Max)：1.252" (31.80mm)
- Thickness (Max)：-
- Lead Spacing：0.400" (10.15mm)
Ptc Resettable Fuses datasheet and documents for RXEF375-2
Ptc Resettable Fuses Overview
The Littelfuse RXEF375-2 is a PolySwitch radial-leaded PPTC resettable fuse designed for overcurrent protection. It features a hold current of 0.375 A and a trip current of 0.75 A, operating at a maximum voltage of 72 VDC. The device has a maximum resistance of 1.29 ohms and a power dissipation rating of 3.4 W. It supports a maximum fault current of 40 A and functions within a temperature range of -40°C to +85°C. The component utilizes a radial lead termination with a 5.8 mm lead spacing.
Ptc Resettable Fuses Feature Summary
- Provides reliable overcurrent protection through automatic resistance increase during fault conditions
- Offers resettable functionality to restore circuit operation after cooling
- Compatible with high-volume electronics assembly processes
Ptc Resettable Fuses Applications
- Computer motherboards
- USB hubs, ports and peripherals
- Battery packs
Ptc Resettable Fuses Procurement Notes
Verify the specific suffix designation against official Littelfuse documentation to confirm exact electrical characteristics and agency approvals. Ensure the selected variant matches the required hold current and voltage ratings for the target application. Cross-reference the datasheet for precise mechanical dimensions and soldering parameters before integration.
Ptc Resettable Fuses Selection Notes
Select this component based on the required 0.375 A hold current and 72 VDC maximum voltage rating. Consider the 1.29 ohm initial resistance and 3.4 W power dissipation capabilities for thermal management. Verify compatibility with PCB mounting requirements and lead spacing specifications for the intended design.
Ptc Resettable Fuses Part Context
This part belongs to the RXEF series of radial-leaded PolySwitch devices from Littelfuse. The series provides a comprehensive range of PPTC products with low hold currents and high voltage ratings up to 72V. These components are recognized by UL, CSA, TUV, and CQC agencies for use in various electronic equipment.
Ptc Resettable Fuses Replacement Considerations
Official substitute part numbers are not explicitly confirmed in the provided source material. Consult Littelfuse engineering resources or the latest product selection guide for verified cross-references.
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