Littelfuse 0318.100MXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0318.100MXP is a 100 mA, 250 V AC/DC fast-blow glass cartridge fuse designed for through-hole mounting in 3AB and 3AG package configurations. This component is classified as Active product status and is widely used in circuit protection applications requiring fast response characteristics. Substitute parts become necessary when primary inventory is unavailable, when sourcing from alternative distributors, or when design flexibility permits equivalent component selection within the same electrical and mechanical specifications.

Substiute Parts

0318.100MXP

Littelfuse Inc.In Stock: 10980318.100MXP Datasheet

Current PartRFQ

0318.100HXP

Littelfuse Inc.In Stock: 9660318.100HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 0318.100MXP has one identified parametric equivalent: the 0318.100HXP. This substitute relationship is established based on strict electrical and mechanical parameter matching:

Substitution Criteria:

• Current Rating: 100 mA (identical)
• Voltage Rating (AC): 250 V (identical)
• Response Time: Fast Blow (identical)
• Fuse Type: Cartridge, Glass (identical)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (identical)
• Mounting Type: Through Hole (identical)
• Breaking Capacity @ Rated Voltage: 35 A (identical)
• Melting I²t: 0.00102 (identical)
• DC Cold Resistance: 11.28 Ohms (identical)
• Operating Temperature Range: -55°C to 125°C (identical)
• Approval Agencies: CE, CSA, UL (identical)
• RoHS Status: ROHS3 Compliant (identical)

Both parts are manufactured by Littelfuse Inc. and belong to the 318 series. The substitute part maintains full electrical and mechanical compatibility with the main part number.

Parameter Comparison

Engineering Selection Recommendations

Both the 0318.100MXP and 0318.100HXP are Active product status components manufactured by Littelfuse Inc. and certified by CE, CSA, and UL approval agencies. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The complete parameter alignment between these two part numbers establishes them as direct electrical and mechanical equivalents suitable for interchangeable use in circuit protection applications requiring 100 mA, 250 V AC/DC fast-blow fuse cartridges in 3AB/3AG package configurations.

Frequently Asked Questions (FAQ)

Q: Can the 0318.100HXP be used as a direct replacement for the 0318.100MXP?

A: Yes. Both parts are identical in all electrical parameters (current rating, voltage rating, response time, breaking capacity, melting I²t, and DC cold resistance), mechanical specifications (package type, dimensions, mounting type), operating temperature range, and regulatory certifications. They are direct equivalents.

Q: Are there any differences in the physical package between these two part numbers?

A: No. Both parts use the identical 3AB, 3AG package configuration with dimensions of 0.275" diameter by 1.288" length (6.99 mm x 32.72 mm). They are mechanically interchangeable in through-hole mounting applications.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the 0318.100MXP and 0318.100HXP carry CE, CSA, and UL certifications and are ROHS3 compliant. They meet identical environmental and safety requirements.

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

A: The MXP and HXP designations represent different internal manufacturing or packaging variants within the Littelfuse 318 series. The electrical and mechanical specifications are identical, making them functionally equivalent for circuit protection applications.

Q: Can these fuses be used in both AC and DC circuits?

A: Yes. Both parts are rated for 250 V AC/DC operation, allowing use in either AC or DC circuit protection applications within the specified voltage and current parameters.