Littelfuse 022404.6HXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 022404.6HXP is a 4.6 A fast-blow glass cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole mounted fuse is designed for circuit protection in applications requiring reliable overcurrent interruption. The part is currently active in production with full compliance to international safety standards. Substitute parts may be required due to inventory availability, supply chain considerations, or specific packaging preferences while maintaining identical electrical and mechanical performance.

Substiute Parts

022403.5HXP

Littelfuse Inc.In Stock: 841022403.5HXP Datasheet

Current PartRFQ

022403.5MXP

Littelfuse Inc.In Stock: 1819022403.5MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 022404.6MXP is classified as a parametric equivalent to the 022404.6HXP based on the following critical substitution criteria:

Electrical Parameters (Must Match Exactly):

• Current Rating: 4.6 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 100 A AC, 10 kA DC
• Melting I²t: 6.7
• DC Cold Resistance: 0.0265 Ohms

Mechanical Parameters (Must Match Exactly):

• Fuse Type: Cartridge, Glass
• Package / Case: 2AG, 5mm x 15mm (Axial)
• Mounting Type: Through Hole
• Size / Dimension: 0.185" Dia x 0.570" L (4.70mm x 14.48mm)

Compliance & Environmental (Must Match Exactly):

• Operating Temperature Range: -55°C to 125°C
• Approval Agencies: CE, CSA, PSE, UL
• RoHS Status: ROHS3 Compliant

The 022404.6MXP meets all specified parameters and is therefore a direct substitute for the 022404.6HXP in any application requiring this fuse specification.

Parameter Comparison

Engineering Selection Recommendations

Both the 022404.6HXP and 022404.6MXP are active production parts manufactured by Littelfuse Inc. with identical electrical, mechanical, and compliance specifications. Selection between these parts may be based on inventory availability or packaging preferences, as both parts carry full certification from CE, CSA, PSE, and UL authorities and maintain ROHS3 compliance. The parts are functionally interchangeable in all applications requiring a 4.6 A fast-blow glass cartridge fuse rated for 250 V AC and 125 V DC operation.

Frequently Asked Questions (FAQ)

Q: Can the 022404.6MXP be used as a direct replacement for the 022404.6HXP?

A: Yes. The 022404.6MXP is a parametric equivalent with identical electrical ratings (4.6 A, 250 V AC, 125 V DC), mechanical specifications (2AG package, 5mm x 15mm), response characteristics (fast blow), and compliance certifications. Direct substitution is permissible.

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

A: No. Both parts have identical breaking capacity ratings of 100 A AC and 10 kA DC at rated voltage.

Q: Do both parts meet the same international safety standards?

A: Yes. Both the 022404.6HXP and 022404.6MXP carry certification from CE, CSA, PSE, and UL, and both are ROHS3 compliant.

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

A: The melting I²t value defines the thermal energy required to melt the fuse element. Both parts have identical I²t values, ensuring identical thermal response characteristics and protection performance.

Q: Can these fuses be used in both AC and DC circuits?

A: Yes. Both parts are rated for 250 V AC and 125 V DC operation and are suitable for use in either AC or DC circuits within their respective voltage ratings.

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

A: Both parts operate reliably across the temperature range of -55°C to 125°C.

Q: Are there any packaging or inventory considerations when selecting between these parts?

A: Both parts are supplied in bulk packaging. Selection may be based on current inventory availability, as the 022404.6MXP currently has higher stock levels (1712 pcs) compared to the 022404.6HXP (763 pcs).