Littelfuse 0325.800MXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325.800MXP is an 800 mA ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole component is designed for circuit protection in applications requiring slow-blow response characteristics. The part is currently active in production with full compliance to RoHS3, REACH, and international safety standards (CE, CSA, UL). Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and procurement optimization when the primary part number becomes unavailable or when inventory constraints require alternative sourcing.

Substiute Parts

0325.800MXP

Littelfuse Inc.In Stock: 11330325.800MXP Datasheet

Current PartRFQ

0325.800HXP

Littelfuse Inc.In Stock: 13040325.800HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0325.800MXP is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Current Rating: 800 mA (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" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 100A AC, 10kA DC (exact match required)
• Melting I²t: 8.2 (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• DC Cold Resistance: 0.5725 Ohms (exact match required)
• Approval Agency: CE, CSA, UL (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

The substitute part 0325.800HXP meets all these criteria and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 0325.800HXP is a direct parametric equivalent to the 0325.800MXP. Both parts are manufactured by Littelfuse Inc., carry identical electrical specifications, and maintain the same mechanical form factor. Both parts hold active product status and comply with all required certifications (CE, CSA, UL) and regulatory requirements (RoHS3, REACH Unaffected).

Selection between these two part numbers may be based on inventory availability, lead time, or procurement source. The 0325.800HXP currently maintains higher inventory levels (1232 Pcs) compared to the 0325.800MXP (1072 Pcs), which may influence sourcing decisions for high-volume applications or time-sensitive procurement scenarios.

Frequently Asked Questions (FAQ)

Q: Can the 0325.800HXP be used as a direct replacement for the 0325.800MXP in existing designs?

A: Yes. The 0325.800HXP is a direct parametric equivalent with identical electrical ratings, mechanical dimensions, and certifications. No circuit modifications or design changes are required for substitution.

Q: Are there any differences in the ceramic cartridge construction between these two part numbers?

A: Both parts are ceramic cartridge fuses with identical response time (Slow Blow), melting I²t (8.2), and breaking capacity specifications. No functional differences exist between the two part numbers.

Q: Do both parts fit the same PCB footprint and through-hole mounting pattern?

A: Yes. Both parts share identical package specifications (3AB, 3AG, 1/4" x 1-1/4" Axial) and mounting type (Through Hole). Physical installation is identical.

Q: What is the significance of the different part number suffixes (MXP vs. HXP)?

A: The suffix variation indicates different manufacturing batches or internal Littelfuse product line designations. Both suffixes represent the same functional fuse specification and are interchangeable from an engineering perspective.

Q: Are the voltage and current ratings identical between both parts?

A: Yes. Both parts are rated for 800 mA current, 250 V AC, and 125 V DC. Operating temperature range (-55°C ~ 125°C) and DC cold resistance (0.5725 Ohms) are also identical.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection may be based on current inventory availability, supplier preference, or procurement lead time. Both parts carry identical certifications and compliance status.