Littelfuse 01010002H Fuse Clip Cartridge 250V 15A Chassis Mount - Equivalent & Substitute Parts

Part Overview

The Littelfuse 01010002H is a cartridge fuse clip designed for chassis mounting applications with a 15A current rating at 250V. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing procurement and system maintenance. The part accommodates 1/4" diameter cartridge fuses in single-circuit configurations with spring bronze contacts finished in nickel plating.

Substiute Parts

01010002H

Littelfuse Inc.In Stock: 103401010002H Datasheet

Current PartRFQ

01010002Z

Littelfuse Inc.In Stock: 106101010002Z Datasheet

DirectRFQ

3531

Keystone ElectronicsIn Stock: 141843531 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 01010002H is determined by strict alignment across the following critical parameters: fuse size (0.25" diameter), current rating (15A), fuse type (cartridge), fuseholder type (clip), number of circuits (1), and mounting configuration (chassis mount). Parts meeting these specifications are functionally interchangeable within the electrical and mechanical constraints of the original design.

The identified substitutes are:

Direct Substitute (Same Manufacturer): Littelfuse 01010002Z maintains identical electrical and mechanical specifications with active product status and ROHS3 compliance.

Cross-Manufacturer Substitute: Keystone Electronics 3531 meets all critical functional parameters including fuse size, current rating, cartridge type, clip configuration, single-circuit design, and chassis mounting. This part is actively manufactured and stocked.

Parameter Comparison

Engineering Selection Recommendations

Littelfuse 01010002Z is the primary substitute for the obsolete 01010002H. Both parts are manufactured by Littelfuse Inc., share identical electrical specifications (15A, 250V), mechanical configuration (0.25" cartridge clip, single-circuit, chassis mount), and contact materials (spring bronze with nickel finish). The 01010002Z maintains active product status with ROHS3 compliance and equivalent inventory availability.

Keystone Electronics 3531 serves as an alternative cross-manufacturer substitute. This part meets all critical functional requirements: 15A current rating, 0.25" cartridge fuse accommodation, clip-type single-circuit chassis mount configuration, and ROHS3 compliance. The primary distinction is the contact material composition (brass versus spring bronze) and the absence of a specified voltage rating in the technical documentation. This part maintains higher inventory levels and active manufacturing status.

Frequently Asked Questions (FAQ)

Q: Can the Keystone 3531 be used in applications originally specified for the Littelfuse 01010002H?

A: The Keystone 3531 meets all critical functional parameters: 15A current rating, 0.25" cartridge fuse size, clip-type fuseholder, single-circuit configuration, and chassis mount design. However, the voltage rating specification is not provided for the Keystone part. If the application operates at 250V, the Littelfuse 01010002Z is the recommended substitute due to explicit voltage rating documentation.

Q: What is the difference between the 01010002H and 01010002Z?

A: Both parts are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications. The primary difference is product status: the 01010002H is obsolete while the 01010002Z is active. The 01010002Z is the direct replacement for procurement purposes.

Q: Are there packaging differences between the substitute parts?

A: All three parts are supplied in bulk packaging. No tape-and-reel or alternative packaging formats are specified in the technical documentation.

Q: Does contact material composition affect interchangeability?

A: The 01010002H and 01010002Z both use spring bronze contacts with nickel finish, while the Keystone 3531 uses brass contacts with nickel finish. Both materials are suitable for cartridge fuse clip applications and maintain equivalent electrical conductivity and contact reliability for the specified 15A current rating.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 01010002H, 01010002Z, and Keystone 3531 are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.