Littelfuse 032602.5MXP Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 032602.5MXP is a 2.5 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, or 1/4" x 1-1/4" configurations. The part maintains active product status with full compliance to international safety standards including CE, CSA, K-MARK, PSE, and UL certifications. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, response characteristics, and approval agency compliance.

Substiute Parts

032602.5MXP

Littelfuse Inc.In Stock: 1194032602.5MXP Datasheet

Current PartRFQ

032602.5HXP

Littelfuse Inc.In Stock: 1174032602.5HXP Datasheet

Parametric EquivalentRFQ

BK/MDA-2-1/2-R

Eaton - Electronics DivisionIn Stock: 1067BK/MDA-2-1/2-R Datasheet

MFR RecommendedRFQ

GSA 2.5-R

Bel Fuse Inc.In Stock: 1503GSA 2.5-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Current Rating: 2.5 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)
• Size / Dimension: 0.250" Dia x 1.250" L or equivalent metric (6.35mm x 31.75mm)
• Mounting Type: Requires Holder (exact match required)
• RoHS Status: ROHS3 Compliant (required for regulatory compliance)

All identified substitute parts meet these core electrical and mechanical criteria. Variations in breaking capacity, melting I²t, DC cold resistance, and operating temperature ranges are noted but do not preclude substitution when the primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

All four parts listed are active products with ROHS3 compliance and international safety certifications. Selection between the main part and substitutes is based on availability, approval agency requirements, and application-specific compliance needs.

The Littelfuse 032602.5MXP and 032602.5HXP are parametrically identical and interchangeable. Both carry identical electrical ratings, dimensions, and certifications including K-MARK and PSE approvals.

The Eaton BK/MDA-2-1/2-R and Bel Fuse GSA 2.5-R are functionally equivalent alternatives. Both maintain the required 2.5 A current rating, 250 V AC voltage rating, ceramic cartridge construction, and slow-blow response. The Eaton part offers higher breaking capacity (200A vs. 100A), while the Bel Fuse part maintains the full operating temperature range (-55°C ~ 125°C). Both parts hold CE, CSA, and UL certifications. The Eaton part does not specify DC voltage rating or operating temperature range in the provided data.

For applications requiring K-MARK or PSE certification, the Littelfuse parts (032602.5MXP or 032602.5HXP) are the appropriate selection. For applications requiring only CE, CSA, and UL compliance, all four parts are suitable.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 032602.5HXP directly replace the 032602.5MXP?

A: Yes. Both parts are manufactured by Littelfuse, carry identical electrical ratings (2.5 A, 250 V AC, 125 V DC), identical dimensions (0.250" Dia x 1.250" L), identical response time (Slow Blow), and identical certifications (CE, CSA, K-MARK, PSE, UL). They are parametrically equivalent.

Q: Can the Eaton BK/MDA-2-1/2-R replace the Littelfuse 032602.5MXP?

A: The Eaton part meets the core electrical and mechanical requirements: 2.5 A current rating, 250 V AC voltage rating, ceramic cartridge construction, slow-blow response, and 3AB/3AG package. However, the Eaton part does not specify a DC voltage rating or operating temperature range. Applications requiring 125 V DC operation or the full -55°C ~ 125°C temperature range should confirm Eaton part compatibility before substitution. The Eaton part carries CE, CSA, and UL certifications but does not list K-MARK or PSE approval.

Q: Can the Bel Fuse GSA 2.5-R replace the Littelfuse 032602.5MXP?

A: Yes, with dimensional consideration. The Bel Fuse part matches all critical parameters: 2.5 A current rating, 250 V AC voltage rating, ceramic cartridge construction, slow-blow response, and 3AB/3AG package. The physical dimension is 0.250" Dia x 1.252" L (6.35mm x 31.80mm), which is 0.002" (0.05mm) longer than the Littelfuse part. This minimal difference does not affect holder compatibility. The Bel Fuse part carries CE, CSA, cULus, and PSE certifications.

Q: What is the significance of the melting I²t and breaking capacity differences?

A: Melting I²t and breaking capacity are secondary parameters that reflect fuse performance characteristics under fault conditions. The Littelfuse parts specify 136 melting I²t and 100A AC / 10kA DC breaking capacity. The Eaton part specifies 7.2 melting I²t and 200A breaking capacity. The Bel Fuse part specifies 94 melting I²t and 100A breaking capacity. These differences do not preclude substitution when the primary electrical ratings, response time, and package specifications match. Application-specific fault current levels should be evaluated to confirm adequate breaking capacity.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four parts listed carry ROHS3 Compliant status and are suitable for applications requiring RoHS compliance.

Q: What approval agencies are required for my application?

A: Approval agency requirements depend on the end application and target market. The Littelfuse 032602.5MXP and 032602.5HXP carry the broadest certification set: CE, CSA, K-MARK, PSE, and UL. The Eaton BK/MDA-2-1/2-R carries CE, CSA, and UL. The Bel Fuse GSA 2.5-R carries CE, CSA, cULus, and PSE. Applications requiring K-MARK certification must use a Littelfuse part. Applications requiring PSE certification can use Littelfuse or Bel Fuse parts.