Littelfuse 0315010.MXP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0315010.MXP is a 10 A, 32 V AC/DC slow-blow glass cartridge fuse in 3AB/3AG package format (1/4" x 1-1/4" axial). This through-hole fuse is designed for circuit protection in low-voltage applications requiring UL-approved components. The part is currently active in production with 855 units in stock. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained or when higher voltage ratings provide backward compatibility within the same package and current specification.

Substiute Parts

0315010.MXP

Littelfuse Inc.In Stock: 8890315010.MXP Datasheet

Current PartRFQ

0315010.HXP

Littelfuse Inc.In Stock: 8870315010.HXP Datasheet

Parametric EquivalentRFQ

3SBP 10-R

Bel Fuse Inc.In Stock: 8023SBP 10-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0315010.MXP is determined by the following critical parameters: current rating (10 A), package format (3AB/3AG, 1/4" x 1-1/4"), fuse type (cartridge, glass), response time (slow blow), and mounting configuration (through hole). Voltage rating compatibility is evaluated based on application requirements; parts with equal or higher voltage ratings may substitute when the circuit design permits.

The 0315010.HXP (Littelfuse) is a parametric equivalent with identical electrical and mechanical specifications. The 3SBP 10-R (Bel Fuse Inc.) is a manufacturer-recommended substitute with the same current rating, package, and response time, but operates at 125 V AC, providing higher voltage margin in the same physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The 0315010.HXP is the direct parametric equivalent to the 0315010.MXP, sharing identical electrical ratings, breaking capacity, and thermal characteristics. Both parts are manufactured by Littelfuse Inc. and maintain active product status. Selection between these two is based on inventory availability and lead time considerations.

The 3SBP 10-R from Bel Fuse Inc. is a manufacturer-recommended substitute suitable for applications where higher voltage margin is acceptable. This part carries multiple international certifications (CE, CSA, cULus, PSE) compared to the UL approval of the main part. However, the 3SBP 10-R is listed as obsolete; substitution should be evaluated based on long-term supply chain requirements and design flexibility regarding voltage rating elevation from 32 V to 125 V.

Frequently Asked Questions (FAQ)

Q: Can the 0315010.HXP directly replace the 0315010.MXP? A: Yes. The 0315010.HXP is a parametric equivalent with identical current rating (10 A), voltage rating (32 V AC), response time (slow blow), package format (3AB/3AG, 1/4" x 1-1/4"), and thermal characteristics. Both are manufactured by Littelfuse Inc. and are UL-approved.

Q: Is the 3SBP 10-R compatible with circuits designed for the 0315010.MXP? A: The 3SBP 10-R shares the same current rating, package format, response time, and mounting type. The primary difference is the voltage rating: 125 V AC versus 32 V AC. Substitution is permissible in applications where the circuit voltage does not exceed 32 V AC, as the higher voltage rating provides additional safety margin. Verify circuit design specifications before substitution.

Q: What are the critical parameters for fuse substitution in this category? A: Current rating (10 A), voltage rating (32 V AC minimum), response time (slow blow), package format (3AB/3AG, 1/4" x 1-1/4"), fuse type (cartridge, glass), and mounting configuration (through hole) must remain constant or be upgraded within acceptable design parameters.

Q: Why is the 3SBP 10-R listed as obsolete? A: Obsolete status indicates the part is no longer in active production. Existing inventory may be available, but long-term supply cannot be guaranteed. For new designs or long-term applications, the active-status alternatives (0315010.MXP or 0315010.HXP) are recommended.

Q: Are all substitute parts RoHS3 compliant? A: Yes. The 0315010.MXP, 0315010.HXP, and 3SBP 10-R are all ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for electronic components.