Littelfuse 02302.25MXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 02302.25MXP is an active, through-hole mounted glass cartridge fuse rated at 2.25 A with dual voltage specifications of 250 V AC and 125 V DC. This non-standard axial cartridge fuse is designed for circuit protection applications requiring slow-blow response characteristics. The part is ROHS3 compliant and holds multiple international approvals including CE, CSA, PSE, and UL certifications. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component replacement or procurement alternatives.

Substiute Parts

02302.25MXP

Littelfuse Inc.In Stock: 105102302.25MXP Datasheet

Current PartRFQ

02302.25HXP

Littelfuse Inc.In Stock: 103202302.25HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 02302.25MXP is determined by strict equivalence across the following critical parameters:

• Current Rating: 2.25 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Fuse Type: Cartridge, Glass
• Response Time: Slow Blow
• Package / Case: Cartridge, Non-Standard (Axial)
• Mounting Type: Through Hole
• Size / Dimension: 0.177" Dia x 0.571" L (4.50mm x 14.50mm)
• Breaking Capacity @ Rated Voltage: 35A AC, 10kA DC
• Melting I²t: 39
• Operating Temperature Range: -55°C ~ 125°C
• DC Cold Resistance: 0.0567 Ohms
• Approval Agency: CE, CSA, PSE, UL
• RoHS Status: ROHS3 Compliant

The substitute part 02302.25HXP meets all these criteria and is therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

Both the 02302.25MXP and 02302.25HXP are active products manufactured by Littelfuse Inc. with identical electrical and mechanical specifications. Both parts maintain ROHS3 compliance and hold the same international certifications (CE, CSA, PSE, UL). Selection between these parts may be based on procurement availability, inventory status, or supply chain considerations, as they are functionally equivalent for all circuit protection applications requiring 2.25 A slow-blow fuse protection at 250 V AC / 125 V DC ratings.

Frequently Asked Questions (FAQ)

Q: Can the 02302.25HXP directly replace the 02302.25MXP in existing designs?

A: Yes. Both parts are identical in electrical performance, mechanical dimensions, and mounting characteristics. No circuit redesign or board modification is required.

Q: Are there any differences in approval certifications between these parts?

A: No. Both parts carry identical certifications: CE, CSA, PSE, and UL. Regulatory compliance is equivalent.

Q: What determines if a fuse is a valid substitute for the 02302.25MXP?

A: A substitute must match all critical parameters: 2.25 A current rating, 250 V AC / 125 V DC voltage ratings, slow-blow response, glass cartridge type, non-standard axial package, 0.177" Dia x 0.571" L dimensions, 35A AC / 10kA DC breaking capacity, and identical thermal and resistance specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the 02302.25MXP and 02302.25HXP are ROHS3 compliant.

Q: What is the operating temperature range for these fuses?

A: Both parts operate across -55°C to 125°C, ensuring performance across industrial and commercial temperature environments.