Littelfuse 0325015.MXSPP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325015.MXSPP is a 15A ceramic cartridge fuse rated for 250V AC and 125V DC operation. Designed for through-hole mounting in the 3AB/3AG form factor (1/4" x 1-1/4"), this slow-blow fuse provides circuit protection in industrial and commercial applications. The part is currently listed as obsolete, making identification of active equivalent substitutes essential for ongoing system maintenance and new design implementations.

Substiute Parts

0325015.MXSPP

Littelfuse Inc.In Stock: 11800325015.MXSPP Datasheet

Current PartRFQ

0325015.VXP

Littelfuse Inc.In Stock: 9240325015.VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0325015.MXSPP is determined by strict equivalence across the following critical parameters:

• Current Rating: 15 A (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)
• Size / Dimension: 0.275" Dia x 1.288" L (6.99mm x 32.72mm) (exact match required)
• Melting I²t: 245 (exact match required)
• DC Cold Resistance: 0.005 Ohms (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The Littelfuse 0325015.VXP meets all substitution criteria as a parametric equivalent within the 325 series. The primary distinction is product status: the substitute part is active and available, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The 0325015.VXP is the direct substitute for the obsolete 0325015.MXSPP. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The substitute part maintains identical electrical and mechanical specifications, ensuring functional compatibility in existing circuit designs.

The 0325015.VXP carries active product status with current manufacturing support and availability. Approval certifications include CE, CSA, KC, PSE, and UL standards. For applications requiring the full certification set of the original part (including SEMKO and TUV), compliance verification against specific system requirements is necessary.

Frequently Asked Questions (FAQ)

Q: Can the 0325015.VXP be used as a direct replacement for the 0325015.MXSPP?

A: Yes. Both parts are identical in current rating (15A), voltage ratings (250V AC / 125V DC), fuse type (ceramic cartridge), response time (slow blow), package form factor (3AB/3AG, 1/4" x 1-1/4"), and all electrical parameters including melting I²t and DC cold resistance. The substitute part is active and available from inventory.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The 0325015.MXSPP is obsolete, while the 0325015.VXP is active. The substitute part also differs in packaging designation (bulk versus standard) and carries a subset of approval certifications (CE, CSA, KC, PSE, UL versus CE, CSA, KC, PSE, SEMKO, TUV, UR).

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.275" diameter by 1.288" length (6.99mm x 32.72mm) and use the same 3AB/3AG through-hole mounting configuration.

Q: Do both parts have the same breaking capacity?

A: No. The 0325015.MXSPP has a breaking capacity of 10kA AC and 600A DC. The 0325015.VXP has a breaking capacity of 400A AC and 600A DC. The DC breaking capacity is identical; the AC breaking capacity differs.

Q: Are there any compliance or certification concerns with substitution?

A: Both parts are ROHS3 compliant and REACH unaffected. The original part carries additional certifications (SEMKO, TUV) not present on the substitute. Applications requiring these specific certifications should be evaluated against system requirements before substitution.