Littelfuse 01110501H Fuse Clip Cartridge 250V 10A PCB

Part Overview

The Littelfuse 01110501H is a cartridge fuse clip designed for 5mm diameter fuses with a 10A current rating at 250V. This component is classified as obsolete, making it necessary to identify active equivalent or substitute parts for new designs and ongoing production requirements. The part features through-hole mounting with horizontal orientation and spring brass contacts finished in tin, suitable for PCB applications requiring single-circuit fuse protection.

Substiute Parts

01110501H

Littelfuse Inc.In Stock: 98801110501H Datasheet

Current PartRFQ

01110501Z

Littelfuse Inc.In Stock: 1042701110501Z Datasheet

DirectRFQ

3521

Keystone ElectronicsIn Stock: 632223521 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 01110501H is determined by the following critical parameters: fuse size (5mm diameter), mounting type (through hole), number of circuits (1), fuseholder type (clip), orientation (horizontal), and termination style (PC pin). The current rating and voltage rating are functional parameters that define the protection characteristics of the fuse clip assembly.

The Littelfuse 01110501Z is a direct equivalent manufactured by the same supplier, maintaining identical specifications with the exception of packaging format and active product status. The Keystone Electronics 3521 is a manufacturer-recommended substitute that accommodates the same 5mm fuse size and mounting configuration but operates at a higher current rating of 15A, making it suitable for applications where the original 10A rating is no longer required or where higher protection capacity is acceptable.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete Littelfuse 01110501H, the Littelfuse 01110501Z is the primary replacement option. Both parts are ROHS3 compliant and maintain identical electrical and mechanical specifications. The 01110501Z is actively manufactured and available in bulk packaging, providing continuity for production environments.

The Keystone Electronics 3521 serves as an alternative substitute when higher current capacity is acceptable within the circuit design. This part maintains compatibility with 5mm fuse cartridges and through-hole PCB mounting but is rated for 15A operation. The 3521 is ROHS3 compliant and UL approved, meeting regulatory requirements for fuse holder applications. Voltage rating information for the 3521 is not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can the Keystone Electronics 3521 be used as a direct replacement for the Littelfuse 01110501H?

A: The 3521 is mechanically and electrically compatible for 5mm cartridge fuses in through-hole applications. However, the 3521 is rated for 15A operation compared to the 10A rating of the 01110501H. This substitution is valid only if the circuit design permits the higher current rating and if voltage requirements are met.

Q: What is the primary difference between the 01110501H and 01110501Z?

A: Both parts are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications. The primary differences are product status (01110501H is obsolete; 01110501Z is active) and packaging format (01110501H is packaged individually; 01110501Z is supplied in bulk). Functionally, they are equivalent.

Q: Are all three parts RoHS compliant?

A: Yes. The Littelfuse 01110501H, 01110501Z, and Keystone Electronics 3521 are all ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What fuse types are compatible with these fuse clips?

A: All three fuse clips are designed for 5mm diameter cartridge fuses. The specific fuse amperage and voltage ratings must match the protection requirements of the circuit being designed.

Q: Is the Keystone 3521 UL approved?

A: Yes. The Keystone Electronics 3521 carries UL approval, meeting safety standards for fuse holder applications in electrical circuits.