Littelfuse 032601.5MXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 032601.5MXP is a 1.5 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This slow-blow fuse is designed for applications requiring holder-based mounting in 3AB/3AG form factor (1/4" x 1-1/4"). The part maintains active product status with full compliance to CE, CSA, PSE, and UL standards. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications align with the original specification.

Substiute Parts

032601.5MXP

Littelfuse Inc.In Stock: 1549032601.5MXP Datasheet

Current PartRFQ

032601.5HXP

Littelfuse Inc.In Stock: 1079032601.5HXP Datasheet

Parametric EquivalentRFQ

BK/MDA-1-1/2-R

Eaton - Electronics DivisionIn Stock: 1954BK/MDA-1-1/2-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of the following parameters:

• Current Rating: 1.5 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: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Mounting Type: Requires Holder (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

Two substitute parts meet these criteria: the Littelfuse 032601.5HXP (parametric equivalent) and the Eaton BK/MDA-1-1/2-R (manufacturer-recommended equivalent). Both parts satisfy the electrical and mechanical requirements for direct substitution in applications designed for the 032601.5MXP.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are qualified for direct replacement based on product status and compliance certifications:

The Littelfuse 032601.5HXP is a parametric equivalent manufactured by the same supplier. It carries identical electrical ratings, mechanical dimensions, temperature range, and approval certifications (CE, CSA, PSE, UL). This part is the preferred substitute when maintaining consistency with the original manufacturer is a design requirement.

The Eaton BK/MDA-1-1/2-R is a manufacturer-recommended equivalent from an alternative supplier. It meets the core electrical requirements (1.5 A, 250 V AC, slow-blow ceramic cartridge) and mechanical compatibility (3AB/3AG form factor). Approval certifications include CE, CSA, and UL. The DC voltage rating and operating temperature range are not specified for this part; applications requiring 125 V DC operation or extended temperature performance should reference the Littelfuse alternatives.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 032601.5HXP be used as a direct replacement for the 032601.5MXP?

A: Yes. Both parts are manufactured by Littelfuse, share identical current ratings (1.5 A), voltage ratings (250 V AC, 125 V DC), ceramic cartridge construction, slow-blow response, and 3AB/3AG mechanical form factor. Operating temperature ranges and approval certifications are also identical.

Q: What are the key differences between the Littelfuse and Eaton substitutes?

A: The Littelfuse 032601.5HXP is a parametric equivalent with fully specified DC voltage rating (125 V) and operating temperature range (-55°C ~ 125°C). The Eaton BK/MDA-1-1/2-R meets core AC electrical requirements and mechanical compatibility but does not specify DC voltage rating or operating temperature range. Both carry CE, CSA, and UL certifications; the Littelfuse part additionally carries PSE certification.

Q: Are all three parts compatible with the same holder?

A: Yes. All three parts conform to the 3AB/3AG form factor with dimensions of 1/4" diameter x 1-1/4" length (6.35mm x 31.75mm). They are mechanically interchangeable in any holder designed for this standard.

Q: What is the significance of the slow-blow response time?

A: Slow-blow fuses are designed to tolerate temporary inrush currents without nuisance tripping while providing protection against sustained overcurrent conditions. All three parts share this characteristic, ensuring consistent circuit protection behavior across substitutions.

Q: Should DC voltage rating be considered when selecting a substitute?

A: Yes, if the application operates at or near 125 V DC. The Littelfuse 032601.5MXP and 032601.5HXP both specify 125 V DC rating. The Eaton BK/MDA-1-1/2-R does not specify a DC voltage rating; applications requiring confirmed DC performance should use the Littelfuse alternatives.