Littelfuse 0229.750MXSP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0229.750MXSP is a 750 mA slow-blow glass cartridge fuse rated for 250 V AC and 125 V DC operation. This component is designed for circuits requiring overcurrent protection in the 2AG form factor (5mm x 15mm). The part maintains Active product status and is fully compliant with RoHS3 and international safety standards. Substitute parts become necessary when primary inventory is unavailable or when design flexibility across approved alternatives is required for supply chain optimization.

Substiute Parts

0229.750MXSP

Littelfuse Inc.In Stock: 9440229.750MXSP Datasheet

Current PartRFQ

0229.750HXP

Littelfuse Inc.In Stock: 13150229.750HXP Datasheet

Parametric EquivalentRFQ

0229.750MXP

Littelfuse Inc.In Stock: 15150229.750MXP Datasheet

Parametric EquivalentRFQ

0229.750VXP

LittelfuseIn Stock: 8030229.750VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute parts 0229.750HXP, 0229.750MXP, and 0229.750VXP are parametric equivalents to the 0229.750MXSP. Substitution is valid based on the following criteria:

• Current Rating: 750 mA (identical across all parts)
• Voltage Rating - AC: 250 V (identical across all parts)
• Voltage Rating - DC: 125 V (identical across all parts)
• Fuse Type: Cartridge, Glass (identical across all parts)
• Response Time: Slow Blow (identical across all parts)
• Package / Case: 2AG, 5mm x 15mm (identical across all parts)
• Breaking Capacity @ Rated Voltage: 35A AC, 10kA DC (identical across all parts)
• Melting I²t: 2.95 (identical across all parts)
• Operating Temperature Range: -55°C ~ 125°C (identical across all parts)
• DC Cold Resistance: 0.343 Ohms (identical across all parts)
• Approval Agencies: CE, CSA, UL (identical across all parts)
• RoHS Status: ROHS3 Compliant (identical across all parts)

All substitute parts maintain the same electrical performance, mechanical compatibility, and regulatory compliance as the primary part number.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts (0229.750HXP, 0229.750MXP, 0229.750VXP) are direct parametric equivalents to the 0229.750MXSP and are suitable for interchangeable use in circuit designs. Selection among these parts may be based on inventory availability and supply chain considerations. All parts maintain Active product status and carry identical regulatory certifications (CE, CSA, UL) with full RoHS3 compliance. No functional or performance differentiation exists between the primary part and its substitutes based on the provided electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can 0229.750HXP, 0229.750MXP, and 0229.750VXP be used interchangeably with 0229.750MXSP?

A: Yes. All parts share identical electrical ratings (750 mA, 250 V AC, 125 V DC), mechanical form factor (2AG, 5mm x 15mm), response characteristics (slow blow), and regulatory approvals. They are direct parametric equivalents.

Q: Are there any differences in breaking capacity or melting I²t between these parts?

A: No. All parts have identical breaking capacity (35A AC, 10kA DC) and melting I²t (2.95), ensuring equivalent protection performance in circuit applications.

Q: Do all substitute parts require the same holder?

A: Yes. All parts use the 2AG form factor (5mm x 15mm) and require a compatible 2AG fuse holder. Mechanical compatibility is identical across all part numbers.

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

A: All parts operate across the range of -55°C to 125°C, providing consistent thermal performance across the substitute group.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed are ROHS3 Compliant and carry identical regulatory certifications (CE, CSA, UL), meeting current environmental and safety standards.

Q: What is the DC cold resistance specification?

A: All parts have a DC cold resistance of 0.343 Ohms, ensuring consistent electrical characteristics in DC circuit applications.