Littelfuse 0230.375MXSP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.375MXSP is a 375 mA, 250 V AC / 125 V DC glass cartridge fuse with slow-blow response characteristics. This through-hole mounted component is designed for circuit protection in applications requiring non-standard axial cartridge form factors. The part maintains Active product status with full compliance to CE, CSA, and UL approval agencies. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

0230.375MXSP

Littelfuse Inc.In Stock: 9490230.375MXSP Datasheet

Current PartRFQ

0230.375HXP

Littelfuse Inc.In Stock: 10740230.375HXP Datasheet

Parametric EquivalentRFQ

0230.375MXP

Littelfuse Inc.In Stock: 14330230.375MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0230.375MXSP are identified based on electrical and mechanical parameter equivalence. The substitution criteria are strictly limited to the following parameters:

• Current Rating: 375 mA
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Fuse Type: Cartridge, Glass
• Response Time: Slow Blow
• Mounting Type: Through Hole
• Package / Case: Cartridge, Non-Standard (Axial)
• Size / Dimension: 0.177" Dia x 0.571" L (4.50mm x 14.50mm)
• Breaking Capacity @ Rated Voltage: 35A AC, 10kA DC
• Melting I²t: 0.58
• DC Cold Resistance: 1.1685 Ohms
• Operating Temperature Range: -55°C ~ 125°C
• Approval Agencies: CE, CSA, UL
• RoHS Status: ROHS3 Compliant

All identified substitute parts maintain identical electrical performance and mechanical compatibility with the main part number.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—0230.375MXSP, 0230.375HXP, and 0230.375MXP—are functionally equivalent and maintain Active product status. Selection between these parts may be based on inventory availability and procurement lead times. All parts carry identical electrical ratings, mechanical dimensions, and regulatory certifications (CE, CSA, UL). All parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and deployment.

Frequently Asked Questions (FAQ)

Q: Can 0230.375HXP or 0230.375MXP be used as direct replacements for 0230.375MXSP?

A: Yes. All three part numbers are parametric equivalents with identical current ratings (375 mA), voltage ratings (250 V AC / 125 V DC), fuse type (Cartridge, Glass), response time (Slow Blow), mechanical dimensions (0.177" Dia x 0.571" L), and regulatory certifications. Direct substitution is supported without circuit redesign or re-qualification.

Q: Are there any differences in breaking capacity or melting characteristics?

A: No. All three parts share identical breaking capacity (35A AC, 10kA DC) and melting I²t values (0.58), ensuring equivalent protection performance in circuit applications.

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

A: All three part numbers operate across the temperature range of -55°C to 125°C, supporting deployment in industrial and commercial environments with consistent thermal performance.

Q: Are these parts compliant with environmental regulations?

A: Yes. All three parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: What certifications do these fuses carry?

A: All three parts carry CE, CSA, and UL approvals, confirming compliance with international safety and performance standards for electrical protective devices.