Littelfuse 0233003.MXBP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0233003.MXBP is a 3A 125VAC glass cartridge fuse designed for circuit protection in applications requiring medium-blow response characteristics. This fuse operates within the 233 series and is housed in a 5mm x 20mm form factor, requiring a compatible fuse holder for installation. The part maintains active product status with full compliance to international safety standards including CE, CSA, KC, PSE, and UL certifications. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative inventory sources while maintaining identical electrical and mechanical performance.

Substiute Parts

0233003.MXBP

Littelfuse Inc.In Stock: 9400233003.MXBP Datasheet

Current PartRFQ

0233003.MXP

Littelfuse Inc.In Stock: 31690233003.MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0233003.MXBP is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 0233003.MXP qualifies as a parametric equivalent based on identical specifications in the following key areas: current rating (3A), voltage rating (125VAC), fuse type (cartridge glass), response time (medium blow), physical dimensions (5mm x 20mm), breaking capacity (10kA), melting I²t value (26.24), operating temperature range (-55°C to 125°C), DC cold resistance (0.0431 Ohms), and regulatory compliance certifications (CE, CSA, KC, PSE, UL). Both parts belong to the Littelfuse 233 series and maintain identical RoHS3 compliance status. The substitution is based solely on parametric matching with no deviations in electrical performance or mechanical form factor.

Parameter Comparison

Engineering Selection Recommendations

Both the 0233003.MXBP and 0233003.MXP maintain active product status with full compliance to CE, CSA, KC, PSE, and UL certifications. Selection between these parts may be based on inventory availability and supply chain considerations. The 0233003.MXP currently maintains higher inventory levels (3081 pcs) compared to the 0233003.MXBP (861 pcs), providing improved availability for procurement planning. Both parts are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements. The identical electrical characteristics, mechanical dimensions, and thermal operating range ensure direct interchangeability without circuit redesign or application modification.

Frequently Asked Questions (FAQ)

Q: Can the 0233003.MXP be used as a direct replacement for the 0233003.MXBP?

A: Yes. Both parts are parametric equivalents with identical current ratings (3A), voltage ratings (125VAC), fuse types (cartridge glass), response times (medium blow), physical dimensions (5mm x 20mm), breaking capacities (10kA), and regulatory certifications. Direct substitution is supported without application modification.

Q: Are there any differences in the fuse holder requirements?

A: No. Both parts require the same fuse holder type due to identical 5mm x 20mm form factors and mounting specifications. Existing holder installations are compatible with either part.

Q: What is the significance of the melting I²t value of 26.24?

A: The melting I²t value defines the thermal energy required to melt the fuse element. Identical I²t values (26.24) between both parts ensure matching response characteristics and protection performance in the circuit.

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

A: Yes. Both the 0233003.MXBP and 0233003.MXP carry identical approval certifications: CE, CSA, KC, PSE, and UL. Both are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for these fuses?

A: Both parts operate across the temperature range of -55°C to 125°C, providing consistent performance across industrial and commercial applications.

Q: Is there a difference in DC cold resistance between the two parts?

A: No. Both parts maintain identical DC cold resistance of 0.0431 Ohms, ensuring equivalent electrical characteristics in DC circuit applications.