Littelfuse 01020074H Fuse Clip Cartridge 250V 15A PCB

Part Overview

The Littelfuse 01020074H is a cartridge fuse clip designed for 1/4" diameter fuses with a 15A current rating at 250V. This component functions as a through-hole mounted fuseholder on printed circuit boards, utilizing a clip-based retention mechanism for horizontal orientation. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure procurement availability for new production runs and field replacements.

Substiute Parts

01020074H

Littelfuse Inc.In Stock: 96401020074H Datasheet

Current PartRFQ

01020074Z

Littelfuse Inc.In Stock: 878201020074Z Datasheet

DirectRFQ

BK/1A3398-07-R

Eaton - Electronics DivisionIn Stock: 4960BK/1A3398-07-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 01020074H is determined by the following critical parameters that must remain constant across all alternatives:

• Fuse size: 0.25" diameter (6.35mm)
• Current rating: 15A
• Voltage rating: 250V
• Mounting type: Through hole
• Fuse type: Cartridge
• Fuseholder type: Clip
• Number of circuits: 1
• Orientation: Horizontal
• Termination style: PC Pin
• Contact finish: Tin

The identified substitute parts maintain these core electrical and mechanical specifications, ensuring direct functional equivalence within the same PCB assembly footprint and circuit protection requirements.

Parameter Comparison

Engineering Selection Recommendations

The Littelfuse 01020074Z represents the primary substitute option, offering identical electrical and mechanical specifications with active product status and ROHS3 compliance. This part maintains the same series designation (102) and contact material composition, ensuring direct compatibility with existing PCB designs and assembly processes.

The Eaton BK/1A3398-07-R provides an alternative from a different manufacturer within the same product category. While current and voltage ratings are not explicitly specified in available documentation, this part matches all documented mechanical parameters including fuse size, mounting type, orientation, and termination style. ROHS3 compliance and tin contact finish are confirmed.

Both substitute parts carry active product status, ensuring long-term procurement availability compared to the obsolete 01020074H.

Frequently Asked Questions (FAQ)

Q: Can the 01020074Z be used as a direct replacement for the 01020074H?

A: Yes. The 01020074Z maintains identical electrical ratings (15A, 250V), fuse size (0.25" diameter), mounting configuration (through hole, horizontal orientation), and contact specifications (spring brass with tin finish). The primary difference is product status: 01020074Z is active while 01020074H is obsolete.

Q: What is the difference between the Littelfuse and Eaton substitute options?

A: Both parts share the same mechanical footprint and mounting characteristics. The Littelfuse 01020074Z explicitly specifies 15A and 250V ratings matching the original part. The Eaton BK/1A3398-07-R does not provide explicit current and voltage specifications in available data but maintains compatible fuse size, clip-based retention, and PC pin termination.

Q: Are there packaging differences between these parts?

A: The 01020074H is supplied in standard packaging, while both 01020074Z and BK/1A3398-07-R are available in bulk packaging. Packaging format does not affect electrical or mechanical performance.

Q: Do all three parts meet RoHS compliance requirements?

A: Yes. The 01020074H, 01020074Z, and BK/1A3398-07-R are all ROHS3 compliant.

Q: Can the Eaton part be used if current and voltage ratings are not specified?

A: The Eaton BK/1A3398-07-R matches all specified mechanical parameters. However, selection should be based on documented electrical ratings provided by the manufacturer for your specific application requirements.