Littelfuse 01270001H Fuse Clip Cartridge 30A 250V Chassis Mount - Equivalent & Substitute Parts

Part Overview

The Littelfuse 01270001H is a cartridge fuse clip designed for 30A, 250V chassis mount applications with a 0.563" diameter (14.3mm) fuse cavity. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The substitute part 01270001Z provides functional continuity with active product status and improved availability.

Substiute Parts

01270001H

Littelfuse Inc.In Stock: 77101270001H Datasheet

Current PartRFQ

01270001Z

Littelfuse Inc.In Stock: 115901270001Z Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 01270001Z qualifies as a direct substitute for the 01270001H based on the following critical parameters:

• Current Rating: Both parts rated for 30 A
• Fuse Size: Both accommodate 0.563" diameter (14.3mm) cartridge fuses
• Fuse Type: Both are cartridge-type fuseholders
• Mounting Configuration: Both are single-circuit, chassis-mount designs
• Termination: Both use solder lug termination
• Contact Materials: Both feature beryllium copper contacts with silver finish

The primary distinction is product status: 01270001H is obsolete while 01270001Z is active, with significantly higher inventory availability (1100 pcs vs. 708 pcs).

Parameter Comparison

Engineering Selection Recommendations

The 01270001Z is the appropriate selection for new designs and ongoing procurement applications. Both parts maintain identical electrical and mechanical specifications within the 127 series, ensuring form-fit-function compatibility. The 01270001Z carries active product status with ROHS3 compliance and REACH unaffected designation, supporting long-term supply chain stability. The 01270001H, while functionally equivalent, is classified as obsolete and should be replaced in active bill-of-materials documentation.

Frequently Asked Questions (FAQ)

Q: Can 01270001Z directly replace 01270001H in existing assemblies? A: Yes. Both parts are identical in current rating (30A), voltage rating (250V), fuse cavity size (0.563" diameter), mounting configuration (chassis mount), and termination method (solder lug). No circuit modifications are required.

Q: What is the significance of the product status difference? A: The 01270001H is obsolete, indicating Littelfuse has discontinued active production and support. The 01270001Z is active, ensuring continued availability, technical support, and compliance documentation. For new designs and long-term applications, 01270001Z is the specified choice.

Q: Are there packaging differences between these parts? A: The 01270001H is specified with "-" packaging notation, while 01270001Z is supplied in bulk packaging. Both are identical components; packaging designation reflects current distribution format only.

Q: Do both parts support the same fuse specifications? A: Yes. Both accommodate 9/16" diameter cartridge fuses and are rated for 30A at 250V operation.

Q: Are compliance certifications equivalent? A: Both parts are ROHS3 compliant. The 01270001Z additionally carries REACH unaffected status, providing enhanced regulatory documentation for international applications.