Littelfuse 022504.6MXP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 022504.6MXP is a fast-blow glass cartridge fuse rated for 4.6 A at 250 V AC and 125 V DC. This component is designed for circuit protection in applications requiring reliable overcurrent interruption with rapid response characteristics. The fuse operates within the 2AG form factor (5mm x 15mm) and requires a compatible holder for installation. As an active product with full regulatory compliance, substitute parts are available to support procurement flexibility and supply chain continuity.

Substiute Parts

022503.5MXP

LittelfuseIn Stock: 1764022503.5MXP Datasheet

Current PartRFQ

022503.5HXP

LittelfuseIn Stock: 978022503.5HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 022504.6MXP is determined by strict equivalence across the following critical parameters:

• Current Rating: 4.6 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Package / Case: 2AG, 5mm x 15mm
• Breaking Capacity @ Rated Voltage: 100A AC, 10kA DC
• Melting I²t: 6.7
• Operating Temperature Range: -55°C ~ 125°C
• DC Cold Resistance: 0.0265 Ohms
• Regulatory Compliance: CE, CSA, PSE, UL certifications

The substitute part 022504.6HXP meets all these parameters identically, establishing it as a direct parametric equivalent within the Littelfuse 225 series.

Parameter Comparison

Engineering Selection Recommendations

Both the 022504.6MXP and 022504.6HXP are active products with identical electrical and mechanical specifications. Selection between these parts may be based on procurement availability and inventory status. The 022504.6MXP currently maintains higher inventory levels (1696 pcs) compared to the 022504.6HXP (885 pcs). Both parts carry full regulatory compliance including CE, CSA, PSE, and UL certifications, and both are ROHS3 compliant. Either part is suitable for direct substitution in applications requiring 4.6 A fast-blow fuse protection at 250 V AC / 125 V DC with 2AG form factor requirements.

Frequently Asked Questions (FAQ)

Q: Can 022504.6HXP be used as a direct replacement for 022504.6MXP?

A: Yes. Both parts are parametrically identical across all electrical, mechanical, and regulatory specifications. They are interchangeable in any application requiring a 4.6 A, 250 V AC / 125 V DC fast-blow glass cartridge fuse in 2AG form factor.

Q: What determines compatibility between these fuse models?

A: Compatibility is determined by matching current rating, voltage ratings (both AC and DC), fuse type, response time, package form factor, breaking capacity, melting I²t value, operating temperature range, and regulatory certifications. All these parameters are identical between the two parts.

Q: Do both parts require the same holder?

A: Yes. Both the 022504.6MXP and 022504.6HXP use the 2AG form factor (5mm x 15mm) and require a compatible 2AG fuse holder for installation.

Q: Are there any differences in regulatory compliance between these parts?

A: No. Both parts carry identical certifications: CE, CSA, PSE, and UL. Both are ROHS3 compliant and REACH unaffected.

Q: What is the significance of the melting I²t value of 6.7?

A: The melting I²t value characterizes the thermal energy required to melt the fuse element. This value is identical for both parts, confirming identical thermal response characteristics and protection behavior in overcurrent conditions.