Littelfuse 032602.5MXCCP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 032602.5MXCCP 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 installation in 3AB, 3AG format with dimensions of 1/4" x 1-1/4" (6.35mm x 31.75mm). The part maintains active product status and is RoHS3 compliant with full international approvals including CE, CSA, KC, PSE, and UL certification. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical compatibility, and approval certifications.

Substiute Parts

032602.5MXCCP

Littelfuse Inc.In Stock: 1122032602.5MXCCP 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

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 032602.5MXCCP are identified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

• Current Rating: 2.5 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic
• Response Time: Slow Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (mechanical compatibility)
• Mounting Type: Requires Holder

Secondary Compatibility Factors:

• Voltage Rating - DC: 125 V or higher
• Operating Temperature Range: -55°C ~ 125°C or equivalent
• RoHS3 Compliance
• International Approval Certifications: CE, CSA, UL (minimum)

Substitutes are grouped into two categories: parametric equivalents from the same manufacturer series and manufacturer-recommended alternatives from other suppliers that meet all electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

032602.5HXP (Littelfuse Inc.) - Parametric Equivalent

The 032602.5HXP is a direct parametric equivalent within the Littelfuse 326 series. It matches all critical electrical parameters including 2.5 A current rating, 250 V AC / 125 V DC voltage ratings, and identical mechanical package specifications. Both parts share identical breaking capacity ratings (100A AC, 10kA DC), melting I²t values (136), and DC cold resistance (0.0835 Ohms). Approval certifications are equivalent with CE, CSA, PSE, and UL compliance. This substitute is suitable for direct replacement in all applications where the main part is specified.

BK/MDA-2-1/2-R (Eaton - Electronics Division) - Manufacturer-Recommended Alternative

The BK/MDA-2-1/2-R is a manufacturer-recommended substitute from Eaton's MDA series. It maintains the same 2.5 A current rating, 250 V AC voltage rating, and identical mechanical package (3AB, 3AG, 1/4" x 1-1/4"). The Eaton part features a higher breaking capacity (200A) compared to the main part (100A AC), providing enhanced protection capability. DC voltage rating is not specified for the Eaton part. Both parts hold active product status and RoHS3 compliance. Approval certifications include CE, CSA, and UL. The lower DC cold resistance (0.066 Ohms versus 0.0835 Ohms) represents a minor electrical characteristic difference. This substitute is suitable for applications where the enhanced breaking capacity is acceptable or beneficial.

Frequently Asked Questions (FAQ)

Q: Can the 032602.5HXP be used as a direct replacement for the 032602.5MXCCP?

A: Yes. The 032602.5HXP is a parametric equivalent with identical electrical ratings (2.5 A, 250 V AC, 125 V DC), mechanical package (3AB, 3AG, 1/4" x 1-1/4"), response time (Slow Blow), and breaking capacity (100A AC, 10kA DC). Both parts are manufactured by Littelfuse and hold equivalent approval certifications.

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

A: The primary difference is breaking capacity: the Eaton BK/MDA-2-1/2-R provides 200A breaking capacity compared to 100A AC for the Littelfuse parts. The Eaton part also has lower DC cold resistance (0.066 Ohms versus 0.0835 Ohms). The Eaton part does not specify a DC voltage rating, whereas both Littelfuse parts are rated for 125 V DC. All three parts share identical current ratings, AC voltage ratings, package dimensions, and response time characteristics.

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

A: Yes. All three parts use the 3AB, 3AG package format with dimensions of 1/4" Dia x 1-1/4" L (6.35mm x 31.75mm). They are mechanically interchangeable in any holder designed for this standard package size.

Q: What approval certifications should I verify for my application?

A: The main part (032602.5MXCCP) carries CE, CSA, KC, PSE, and UL certifications. The 032602.5HXP carries CE, CSA, K-MARK, PSE, and UL certifications. The Eaton BK/MDA-2-1/2-R carries CE, CSA, and UL certifications. Verify that the selected substitute meets all certification requirements specified for your end application.

Q: Can I use the Eaton BK/MDA-2-1/2-R in applications requiring 125 V DC operation?

A: The Eaton part does not specify a DC voltage rating in the provided data. For applications requiring confirmed 125 V DC operation, the Littelfuse parts (032602.5MXCCP or 032602.5HXP) are the specified choices, as both explicitly rate 125 V DC.

Q: What is the significance of the melting I²t value difference between Littelfuse and Eaton parts?

A: The Littelfuse parts specify a melting I²t of 136, while the Eaton part specifies 7.2. This indicates different thermal response characteristics. The Littelfuse parts are designed for slower thermal response, consistent with their Slow Blow classification. The Eaton part's lower I²t value indicates faster thermal response. Both are classified as Slow Blow, but the Eaton part will respond more quickly to overcurrent conditions.