Littelfuse 0215.315H Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215.315H is a 315 mA, 250 V AC/DC ceramic cartridge fuse with a 5mm x 20mm form factor and slow-blow response characteristic. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing system maintenance and new designs. Substitute parts must maintain identical electrical ratings, mechanical dimensions, and performance characteristics to ensure direct interchangeability in existing fuse holder assemblies.

Substiute Parts

0215.315H

Littelfuse Inc.In Stock: 11300215.315H Datasheet

Current PartRFQ

0215.315HXP

Littelfuse Inc.In Stock: 21780215.315HXP Datasheet

DirectRFQ

5HT 315-R

Bel Fuse Inc.In Stock: 19905HT 315-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

• Current Rating: 315 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity: 1.5 kA (exact match required)

All identified substitute parts meet these criteria and are suitable for direct replacement in applications currently using the 0215.315H.

Parameter Comparison

Engineering Selection Recommendations

The 0215.315H is obsolete and should be replaced with an active equivalent for new procurements and system maintenance.

Littelfuse 0215.315HXP is the direct manufacturer successor, maintaining identical electrical and mechanical specifications while offering expanded regulatory approvals (CE, SEMKO, UL, VDE) and ROHS3 compliance. This part is recommended for applications requiring continuity with the original Littelfuse product line.

Bel Fuse 5HT 315-R provides full electrical and mechanical equivalence with certifications from CCC, CSA, and cURus, and ROHS3 compliance. This part is suitable for applications where multi-source qualification is required or where Bel Fuse components are already established in the supply chain.

Both substitute parts are active products with confirmed inventory availability and meet all critical electrical parameters for direct replacement.

Frequently Asked Questions (FAQ)

Q: Can the 0215.315HXP be used as a direct replacement for the 0215.315H?

A: Yes. Both parts share identical current rating (315 mA), voltage rating (250 V AC), ceramic cartridge construction, 5mm x 20mm package, slow-blow response, and 1.5 kA breaking capacity. The 0215.315HXP is the active equivalent and is recommended for new applications.

Q: What is the difference between the Littelfuse and Bel Fuse substitutes?

A: Both parts meet all electrical and mechanical substitution criteria. Differences exist in regulatory approvals (Littelfuse: CE, SEMKO, UL, VDE; Bel Fuse: CCC, CSA, cURus) and minor variations in DC cold resistance and melting I²t values. Selection should be based on applicable regulatory requirements and existing supply chain qualifications.

Q: Are there any dimensional differences between these parts?

A: The 0215.315HXP and 0215.315H are dimensionally identical at 5mm x 20mm. The 5HT 315-R has a nominal diameter of 5.10mm versus 5.20mm for the Littelfuse parts, but both conform to the 5mm x 20mm package specification and are compatible with standard 5mm x 20mm fuse holders.

Q: Can I use these substitutes in existing equipment without modification?

A: Yes, provided the equipment uses a standard 5mm x 20mm fuse holder. All substitute parts are cartridge-type fuses requiring a holder and are mechanically and electrically compatible with the original 0215.315H.

Q: Which substitute should I choose for new designs?

A: Selection depends on regulatory and supply chain requirements. The 0215.315HXP is recommended if Littelfuse product continuity is preferred. The 5HT 315-R is suitable if multi-source qualification or Bel Fuse integration is required. Both are active products with full compliance certifications.