Littelfuse 0230.750MXSP Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.750MXSP is a 750 mA slow-blow glass cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole component is designed for circuit protection in applications requiring reliable overcurrent interruption with a breaking capacity of 35 A AC and 10 kA DC. The part maintains active product status with full compliance to CE, CSA, and UL approval agencies. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the same fuse series and packaging specification.

Substiute Parts

0230.750MXSP

Littelfuse Inc.In Stock: 12440230.750MXSP Datasheet

Current PartRFQ

0230.750MXP

Littelfuse Inc.In Stock: 19770230.750MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0230.750MXSP are identified based on strict equivalence across the following critical parameters:

• Current Rating: 750 mA
• Voltage Rating: 250 V AC / 125 V DC
• Response Time: Slow Blow
• Fuse Type: Cartridge, Glass
• Package / Case: Cartridge, Non-Standard (Axial)
• Mounting Type: Through Hole
• Breaking Capacity: 35 A AC, 10 kA DC
• Melting I²t: 2.95
• Physical Dimensions: 0.177" Dia x 0.571" L (4.50 mm x 14.50 mm)
• DC Cold Resistance: 0.343 Ohms
• Operating Temperature Range: -55°C ~ 125°C
• Approval Certifications: CE, CSA, UL

The substitute part 0230.750MXP maintains identical electrical and mechanical specifications, ensuring direct functional equivalence within the Littelfuse 230 series fuse line.

Parameter Comparison

Engineering Selection Recommendations

Both the 0230.750MXSP and 0230.750MXP are active products from Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts is based on availability and inventory status. Both parts carry full regulatory compliance with CE, CSA, and UL certifications, and both meet ROHS3 requirements. The interchangeability is complete across all specified parameters, including current rating, voltage ratings, response time, breaking capacity, physical dimensions, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the 0230.750MXP be used as a direct replacement for the 0230.750MXSP?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications, including current rating, voltage ratings, breaking capacity, physical dimensions, and thermal characteristics. Both maintain identical certifications and compliance status.

Q: Are there any differences in package or mounting between these parts?

A: No. Both parts use the same Cartridge, Non-Standard (Axial) package and through-hole mounting configuration with identical physical dimensions of 0.177" Dia x 0.571" L (4.50 mm x 14.50 mm).

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 0230.750MXSP and 0230.750MXP carry CE, CSA, and UL approvals and are ROHS3 compliant.

Q: What is the significance of the slow-blow response time?

A: The slow-blow characteristic allows the fuse to tolerate temporary inrush currents without nuisance interruption while still providing protection against sustained overcurrent conditions. This specification is identical across both parts.

Q: Are the breaking capacities identical?

A: Yes. Both parts have a breaking capacity of 35 A AC and 10 kA DC at rated voltage, with identical melting I²t values of 2.95.