Equivalent & Substitute Parts for RXE010S

Part Overview

The RXE010S is a Polymeric PTC Resettable Fuse manufactured by Littelfuse, rated for 60V maximum voltage and 100 mA hold current. This component is classified as Obsolete, which necessitates identification of active equivalent parts for continued system design and maintenance applications. The RXE010S operates as a thermal protection device in Through Hole Radial configuration, suitable for applications requiring automatic fault recovery without component replacement.

Substiute Parts

RXE010S

LittelfuseIn Stock: 1104RXE010S Datasheet

Current PartRFQ

RXEF010S

Littelfuse Inc.In Stock: 1355RXEF010S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RXE010S is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage rating: 60V maximum
• Hold current: 100 mA maximum
• Trip current: 200 mA
• Time to trip: 4 seconds
• Initial resistance: 2.5 Ohms minimum
• Post-trip resistance: 7.5 Ohms maximum
• Mounting configuration: Through Hole Radial, Disc
• Physical dimensions: 0.291" diameter x 0.118" thickness (7.40mm x 3.00mm)
• Lead spacing: 0.199" (5.05mm)

The RXEF010S meets all specified electrical and mechanical parameters while maintaining identical physical form factor and lead configuration, enabling direct substitution in circuit board layouts and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

The RXEF010S is the direct active equivalent for the obsolete RXE010S. Both components share identical electrical specifications and physical form factors. The RXEF010S offers the following advantages for new designs and replacement applications:

• Active product status ensures long-term availability and supply chain continuity
• ROHS3 compliance satisfies current environmental and regulatory requirements
• Expanded approval certifications including CQC provide broader market acceptance
• Operating temperature range of -40°C to 85°C is specified for the RXEF010S, enabling thermal performance assessment in system design
• Identical mechanical and electrical parameters eliminate redesign requirements for circuit board layouts and assembly processes

Frequently Asked Questions (FAQ)

Q: Can RXEF010S be used as a direct replacement for RXE010S in existing designs?

A: Yes. The RXEF010S maintains identical electrical ratings (60V, 100 mA hold current, 200 mA trip current), physical dimensions (0.291" diameter x 0.118" thickness), lead spacing (0.199"), and mounting configuration (Through Hole Radial, Disc). No circuit modifications are required.

Q: What is the primary reason for substituting RXE010S with RXEF010S?

A: The RXE010S is classified as Obsolete. The RXEF010S is an Active product from the same manufacturer with identical specifications, ensuring continued availability for production and maintenance applications.

Q: Are there compliance differences between RXE010S and RXEF010S?

A: The RXEF010S is ROHS3 compliant, while the RXE010S is RoHS non-compliant. Both components are REACH Unaffected and classified under ECCN EAR99. The RXEF010S carries additional CQC certification alongside existing CSA, TUV, and UL approvals.

Q: What is the operating temperature range for RXEF010S?

A: The RXEF010S operates across -40°C to 85°C. Operating temperature specifications were not provided for the RXE010S.

Q: Are the packaging formats different between these parts?

A: The RXE010S packaging format was not specified in available data. The RXEF010S is supplied in Bag packaging. Both components use identical Radial, Disc package configuration.