RXE010S

Ptc Resettable Fuses Overview

The Littelfuse RXE010S is a discontinued polymer PTC self-resetting fuse from the PolySwitch RXE series. Designed for through-hole radial mounting, it features a maximum operating voltage of 60V and a hold current (Ih) of 100 mA. The device trips at a current of 200 mA within 4 seconds. Initial resistance is typically 2.5 Ohms, rising to a maximum of 7.5 Ohms after tripping. It supports a maximum fault current of 40 A and measures 7.40mm in diameter by 3.00mm in height.

Ptc Resettable Fuses Feature Summary

• Polymer-based positive temperature coefficient construction for automatic circuit recovery
• Radial leaded package designed for standard through-hole PCB mounting
• Certified by CSA, TUV, and UL agencies for global compliance

Ptc Resettable Fuses Applications

• Overcurrent protection for low-voltage electronic circuits
• Protection of portable devices and peripheral interfaces
• Circuit safeguarding in consumer electronics requiring resettable fusing

Ptc Resettable Fuses Procurement Notes

This component has been officially discontinued and is no longer manufactured by Littelfuse Inc. Sourcing new units is not possible through standard distribution channels. Designers must verify end-of-life status before finalizing any legacy system maintenance or repair plans. Availability is restricted to existing surplus stock held by third-party distributors.

Ptc Resettable Fuses Selection Notes

Engineers should evaluate the direct replacement part number RXEF010S for new designs. The RXEF series offers updated specifications while maintaining similar form factors. Verify that the substitute meets all required voltage, current, and thermal constraints. Ensure compatibility with existing board layouts and certification requirements when transitioning from the obsolete RXE series.

Ptc Resettable Fuses Part Context

The RXE series represents Littelfuse's line of radial PTC resettable fuses intended for general-purpose circuit protection. These components utilize proprietary polymer technology to provide reliable overcurrent defense in space-constrained applications. The RXE010S specifically targets low-current DC circuits where manual fuse replacement is impractical or undesirable.

Ptc Resettable Fuses Replacement Considerations

The confirmed direct substitute is RXEF010S from Littelfuse Inc. This part maintains functional equivalence for migration purposes.

Ptc Resettable Fuses FAQ

What is the trip time specification for the RXE010S?

The device is specified to trip within 4 seconds when subjected to its trip current.

Does the RXE010S comply with RoHS standards?

No, the RXE010S is explicitly listed as non-compliant with RoHS regulations.