Littelfuse 0326003.MXCCP Ceramic Fuse Cartridge - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0326003.MXCCP is a 3 A ceramic fuse cartridge rated for 250 V AC and 125 V DC operation. This slow-blow cartridge fuse requires a compatible holder (3AB, 3AG format) and is designed for applications requiring reliable overcurrent protection with controlled response characteristics. The part maintains active product status with full compliance to international safety standards including CE, CSA, KC, PSE, and UL certifications. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and functional performance parameters.

Substiute Parts

0326003.MXCCP

Littelfuse Inc.In Stock: 8850326003.MXCCP Datasheet

Current PartRFQ

0326003.HXP

LittelfuseIn Stock: 7840326003.HXP Datasheet

Parametric EquivalentRFQ

0326003.MXP

Littelfuse Inc.In Stock: 14480326003.MXP Datasheet

Parametric EquivalentRFQ

BK/MDA-3-R

Eaton - Electronics DivisionIn Stock: 1236BK/MDA-3-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for ceramic fuse cartridges is determined by strict equivalence across the following parameters:

Primary Matching Criteria:

• Current Rating: 3 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Voltage Rating - DC: 125 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)

Secondary Compatibility Factors:

• Breaking Capacity @ Rated Voltage
• Melting I²t characteristics
• DC Cold Resistance
• Operating Temperature Range
• Approval Agency certifications

All substitute parts listed below meet the primary matching criteria. Variations in secondary factors are noted in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

Littelfuse 0326003.HXP and 0326003.MXP are parametric equivalents to the main part 0326003.MXCCP. All three parts are manufactured by Littelfuse Inc., share identical electrical ratings (3 A, 250 V AC, 125 V DC), mechanical dimensions, response characteristics, and melting I²t values. The primary distinction is approval agency certification: 0326003.HXP and 0326003.MXP include K-MARK certification in place of KC certification. All three maintain active product status and ROHS3 compliance.

Eaton BK/MDA-3-R is a manufacturer-recommended substitute from Eaton - Electronics Division. This part matches the primary electrical and mechanical criteria (3 A, 250 V AC, ceramic cartridge, 3AB/3AG package, slow-blow response). However, the BK/MDA-3-R exhibits significant differences in secondary parameters: breaking capacity of 200A (versus 100A AC for Littelfuse parts), melting I²t of 12.1 (versus 200 for Littelfuse parts), and does not specify DC voltage rating or operating temperature range. The BK/MDA-3-R holds CE, CSA, and UL certifications but lacks KC and PSE certifications present on the main part.

Selection between Littelfuse equivalents (0326003.HXP, 0326003.MXP) should be based on regional certification requirements and inventory availability. The Eaton BK/MDA-3-R is suitable for applications where the higher breaking capacity and lower melting I²t are compatible with circuit design requirements and where the reduced certification scope is acceptable.

Frequently Asked Questions (FAQ)

Q: Can 0326003.HXP and 0326003.MXP be used interchangeably with 0326003.MXCCP?

A: Yes. These Littelfuse parts are parametric equivalents with identical current ratings (3 A), voltage ratings (250 V AC, 125 V DC), fuse type (ceramic cartridge), response time (slow blow), mechanical dimensions (1/4" x 1-1/4"), and melting I²t (200). The only difference is certification agency designation (K-MARK versus KC). All three are active products with ROHS3 compliance.

Q: What are the key differences between the Littelfuse parts and the Eaton BK/MDA-3-R?

A: The Eaton BK/MDA-3-R differs in breaking capacity (200A versus 100A AC), melting I²t (12.1 versus 200), and does not specify DC voltage rating or operating temperature range. The Littelfuse parts provide more detailed thermal and electrical performance data. Certification scope also differs: Eaton holds CE, CSA, and UL; Littelfuse parts include additional PSE and regional certifications.

Q: Are all substitute parts compatible with 3AB and 3AG fuse holders?

A: Yes. All listed parts conform to the 3AB, 3AG package standard with dimensions of 0.250" diameter x 1.250" length (6.35mm x 31.75mm). Physical compatibility with standard fuse holders is confirmed across all parts.

Q: Which substitute should be selected for applications requiring DC operation?

A: The Littelfuse parts (0326003.MXCCP, 0326003.HXP, 0326003.MXP) explicitly specify 125 V DC rating. The Eaton BK/MDA-3-R does not specify DC voltage rating. For applications requiring confirmed DC performance, Littelfuse equivalents are the appropriate selection.

Q: Do all parts meet the same international safety standards?

A: All parts hold CE, CSA, and UL certifications. The Littelfuse parts include additional PSE certification and regional certifications (KC or K-MARK). The Eaton part does not include PSE or regional certifications. Verify certification requirements for your specific application region.