Littelfuse 0318.750MXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0318.750MXP is a 750 mA, 250 V AC/DC fast-blow glass cartridge fuse with 3AB/3AG package configuration. This through-hole component is designed for circuit protection in industrial and commercial applications. The part maintains active product status with full regulatory compliance (CE, CSA, UL). Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining identical electrical and mechanical specifications.

Substiute Parts

0318.750MXP

Littelfuse Inc.In Stock: 11420318.750MXP Datasheet

Current PartRFQ

0318.750HXP

Littelfuse Inc.In Stock: 8350318.750HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 0318.750HXP is classified as a parametric equivalent based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Current Rating: 750 mA (exact match)
• Voltage Rating (AC): 250 V (exact match)
• Fuse Type: Cartridge, Glass (exact match)
• Response Time: Fast Blow (exact match)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match)
• Mounting Type: Through Hole (exact match)
• Breaking Capacity @ Rated Voltage: 35 A (exact match)
• Melting I²t: 1.84 (exact match)
• DC Cold Resistance: 0.2445 Ohms (exact match)
• Operating Temperature Range: -55°C to 125°C (exact match)
• Regulatory Compliance: CE, CSA, UL (exact match)
• RoHS Status: ROHS3 Compliant (exact match)

Parameter Comparison

Engineering Selection Recommendations

Both the 0318.750MXP and 0318.750HXP maintain active product status with full regulatory compliance across CE, CSA, and UL certifications. Both parts are ROHS3 compliant and carry identical electrical performance characteristics. Selection between these parts is based on procurement availability and inventory status rather than technical differentiation. The 0318.750MXP currently has 1063 units in stock, while the 0318.750HXP has 818 units available. Either part is suitable for direct substitution in applications requiring 750 mA, 250 V AC/DC fast-blow glass cartridge fuses with 3AB/3AG package configuration.

Frequently Asked Questions (FAQ)

Q: Can the 0318.750HXP replace the 0318.750MXP in existing designs?

A: Yes. Both parts are parametric equivalents with identical current rating, voltage rating, fuse type, response time, package configuration, mounting type, breaking capacity, melting I²t, operating temperature range, DC cold resistance, and regulatory certifications.

Q: Are there any differences in package dimensions between these parts?

A: No. Both parts use the identical 3AB, 3AG package with 1/4" x 1-1/4" (Axial) dimensions (0.275" Dia x 1.288" L / 6.99mm x 32.72mm).

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 0318.750MXP and 0318.750HXP carry CE, CSA, and UL approvals and are ROHS3 compliant.

Q: What is the difference between the MXP and HXP designations?

A: The MXP and HXP designations represent different internal manufacturing or distribution variants within the Littelfuse 318 series. Both maintain identical electrical and mechanical specifications for this 750 mA, 250 V fast-blow cartridge fuse.

Q: Are these parts suitable for through-hole PCB mounting?

A: Yes. Both parts are classified as through-hole mounting components with 1/4" x 1-1/4" axial lead configuration compatible with standard fuse holders and PCB footprints for 3AB/3AG cartridge fuses.