Littelfuse 0215001.H Ceramic Fuse 1A 250VAC 5x20mm - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215001.H is a 1 A, 250 V AC ceramic cartridge fuse in 5mm x 20mm form factor with slow-blow response characteristics. This part is classified as obsolete, making identification of active equivalent and substitute components necessary for ongoing system support and procurement. The fuse requires a dedicated holder for installation and is designed for general-purpose circuit protection applications requiring slow-blow response.

Substiute Parts

0215001.H

Littelfuse Inc.In Stock: 8360215001.H Datasheet

Current PartRFQ

0215001.HXP

Littelfuse Inc.In Stock: 15310215001.HXP Datasheet

DirectRFQ

0001.2504

SCHURTER Inc.In Stock: 31810001.2504 Datasheet

DirectRFQ

5HT 1-R

Bel Fuse Inc.In Stock: 259025HT 1-R Datasheet

MFR RecommendedRFQ

BK/S505-1-R

Eaton - Electronics DivisionIn Stock: 1388BK/S505-1-R Datasheet

MFR RecommendedRFQ

BK1/S505-1-R

Eaton - Electronics DivisionIn Stock: 1692BK1/S505-1-R Datasheet

MFR RecommendedRFQ

S505-1-R

Eaton - Electronics DivisionIn Stock: 906S505-1-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0215001.H is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 1 A (exact match required)
• Voltage Rating (AC): 250 V (minimum requirement)
• Fuse Type: Cartridge, Ceramic
• Response Time: Slow Blow
• Package / Case: 5mm x 20mm (mechanical compatibility)
• Breaking Capacity: 1.5 kA (minimum requirement)
• Mounting Type: Requires Holder (form factor compatibility)

All identified substitute parts meet these core criteria. Variations in secondary parameters such as melting I²t, DC cold resistance, and approval agency certifications do not preclude substitution when primary electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Littelfuse 0215001.HXP

The 0215001.HXP is the direct active equivalent from the original manufacturer. It maintains identical electrical specifications and mechanical form factor while achieving ROHS3 compliance. This part is the preferred choice for direct replacement in new designs and legacy system updates.

Secondary Recommendations: SCHURTER 0001.2504, Bel Fuse 5HT 1-R, Eaton S505 Series

All secondary substitute parts meet the core electrical and mechanical requirements. Selection among these alternatives should be based on:

• Availability and lead time requirements
• Compliance certifications required by the application (all listed parts carry multiple international approvals including CCC, CE, CSA, VDE, and PSE/JET)
• DC voltage rating requirements (SCHURTER 0001.2504 provides 300 V DC rating, exceeding the AC-only specification of the original part)
• Inventory status and procurement cost

All substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 0215001.HXP be used as a direct replacement for the obsolete 0215001.H?

A: Yes. The 0215001.HXP is electrically and mechanically identical to the 0215001.H, with the addition of ROHS3 compliance. It is the recommended direct replacement.

Q: Are all listed substitute parts mechanically compatible with existing fuse holders designed for the 0215001.H?

A: Yes. All substitute parts share the 5mm x 20mm cartridge form factor and require the same holder type. Mechanical compatibility is assured across all listed alternatives.

Q: What is the significance of the melting I²t variation among substitute parts?

A: Melting I²t values (ranging from 1.05 to 1.7 across the listed parts) indicate thermal response characteristics. All values provided fall within acceptable ranges for 1 A slow-blow ceramic fuses. The variation does not affect substitution eligibility when all other parameters match.

Q: Does the SCHURTER 0001.2504 offer advantages over other substitutes?

A: The SCHURTER 0001.2504 provides a 300 V DC rating in addition to the 250 V AC rating. This extended DC voltage capability may be beneficial in applications requiring dual AC/DC protection, though it is not required for direct replacement of the AC-only 0215001.H specification.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed (0215001.HXP, 0001.2504, 5HT 1-R, BK/S505-1-R, BK1/S505-1-R, S505-1-R) are RoHS compliant. The original 0215001.H is RoHS non-compliant, making the transition to compliant alternatives necessary for regulatory adherence.

Q: What approval agencies certify these substitute parts?

A: All substitute parts carry multiple international certifications including CCC, CE, CSA, VDE, and PSE/JET. Specific certification combinations vary by manufacturer; refer to individual datasheets for application-specific compliance requirements.