5HTP 1-R Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The 5HTP 1-R is a 1 A, 250 V AC ceramic cartridge fuse manufactured by Bel Fuse Inc., designed for through-hole mounting in 5mm x 20mm form factor applications. This slow-blow fuse is classified as Active product status and is widely used in industrial and consumer electronics for circuit protection. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility is required while maintaining electrical and mechanical compatibility.

Substiute Parts

5HTP 1-R

Bel Fuse Inc.In Stock: 14435HTP 1-R Datasheet

Current PartRFQ

0001.2504.PT

SCHURTER Inc.In Stock: 11310001.2504.PT Datasheet

DirectRFQ

0215001.MXEP

Littelfuse Inc.In Stock: 37950215001.MXEP Datasheet

DirectRFQ

0215001.MXESPP

Littelfuse Inc.In Stock: 219590215001.MXESPP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5HTP 1-R is determined by the following mandatory parameters:

• Current Rating: 1 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

All identified substitute parts meet these criteria. Secondary parameters such as melting I²t, DC cold resistance, and dimensional tolerances may vary within acceptable engineering limits but do not disqualify substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

All four parts are classified as Active product status, indicating ongoing manufacturer support and availability. Selection among these substitutes should be based on the following factors:

Approval Agency Coverage: The 5HTP 1-R carries certifications from CCC, CE, CSA, cULus, IMQ, PSE, SEMKO, and VDE. The 0215001.MXEP (Littelfuse) provides the broadest certification coverage including CCC, CE, CSA, KC, PSE, SEMKO, UL, and VDE. The 0001.2504.PT (SCHURTER) carries cURus certification. The 0215001.MXESPP (Littelfuse) includes CE, CQC, CSA, KC, PSE, UR, and VDE certifications. Selection should align with the specific regulatory requirements of the target application.

DC Voltage Capability: The 0001.2504.PT is rated for 300 V DC, providing additional capability for dual-voltage applications. The other parts do not specify DC voltage ratings.

Inventory Availability: The 0215001.MXESPP has the highest inventory level (21,850 pcs), followed by 0215001.MXEP (3,759 pcs), 0001.2504.PT (1,120 pcs), and 5HTP 1-R (1,371 pcs).

Dimensional Tolerance: All parts fit the 5mm x 20mm form factor with minor dimensional variations. The 0215001.MXESPP most closely matches the original 5mm x 20mm specification (5.20mm x 20.00mm).

Frequently Asked Questions (FAQ)

Q: Can the 0001.2504.PT be used as a direct replacement for the 5HTP 1-R?

A: Yes. Both parts share identical current rating (1 A), AC voltage rating (250 V), fuse type (ceramic cartridge), response time (slow blow), package form factor (5mm x 20mm), breaking capacity (1.5 kA), and operating temperature range (-55°C ~ 125°C). The 0001.2504.PT additionally supports 300 V DC operation, which does not restrict its use in AC-only applications.

Q: What is the difference between the two Littelfuse parts (0215001.MXEP and 0215001.MXESPP)?

A: Both parts are 1 A, 250 V AC ceramic cartridge fuses with identical electrical specifications. The primary differences are dimensional tolerances (0215001.MXESPP is 5.20mm x 20.00mm versus 0215001.MXEP at 5.80mm x 22.50mm) and certification coverage. The 0215001.MXESPP is available in significantly higher inventory quantities.

Q: Are there any compatibility concerns with dimensional variations?

A: All substitute parts conform to the 5mm x 20mm (Axial) package specification and are designed for through-hole mounting in standard fuse holders. Minor dimensional variations (within 0.5mm) do not affect mechanical fit or electrical performance in standard applications.

Q: Which substitute part has the best regulatory compliance for international markets?

A: The 0215001.MXEP (Littelfuse) carries the most comprehensive certification set including CCC, CE, CSA, KC, PSE, SEMKO, UL, and VDE, making it suitable for the widest range of international regulatory requirements.

Q: Can these parts be used interchangeably in the same circuit board design?

A: Yes, all substitute parts are mechanically and electrically compatible for through-hole fuse holder applications. No circuit board redesign is required for substitution.