Littelfuse 022402.5MXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 022402.5MXP is a 2.5 A fast-blow glass cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole component features a 2AG package format with 5mm x 15mm dimensions and is designed for circuit protection applications requiring reliable overcurrent interruption. The part maintains active product status with full compliance to CE, CSA, PSE, and UL approval agencies. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the same product series, ensuring direct interchangeability without circuit redesign.

Substiute Parts

022402.5MXP
LittelfuseIn Stock: 1766022402.5MXP Datasheet
022402.5MXP
Current Part
022402.5HXP
Littelfuse Inc.In Stock: 1291022402.5HXP Datasheet
022402.5HXP
Parametric Equivalent

Key Parameters

Parameter Value
Current Rating 2.5 A
Voltage Rating - AC 250 V
Voltage Rating - DC 125 V
Response Time Fast Blow
Package / Case 2AG, 5mm x 15mm (Axial)
Mounting Type Through Hole
Fuse Type Cartridge, Glass
Breaking Capacity @ Rated Voltage 100A AC, 10kA DC
Melting I²t 2.68
Operating Temperature Range -55°C ~ 125°C
DC Cold Resistance 0.0372 Ohms
Approval Agencies CE, CSA, PSE, UL
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 022402.5MXP is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 022402.5HXP qualifies as a direct equivalent based on the following criteria:

  • Identical current rating: 2.5 A
  • Identical voltage ratings: 250 V AC / 125 V DC
  • Identical response time classification: Fast Blow
  • Identical package format: 2AG, 5mm x 15mm (Axial)
  • Identical mounting type: Through Hole
  • Identical fuse type: Cartridge, Glass
  • Identical breaking capacity: 100A AC, 10kA DC
  • Identical melting I²t value: 2.68
  • Identical operating temperature range: -55°C ~ 125°C
  • Identical DC cold resistance: 0.0372 Ohms
  • Identical approval agencies: CE, CSA, PSE, UL
  • Identical RoHS compliance: ROHS3 Compliant

Both parts belong to the Littelfuse 224 series and maintain active product status. No parameter deviation exists between the main part and its substitute.

Parameter Comparison

Parameter 022402.5MXP 022402.5HXP Match
Manufacturer Littelfuse Littelfuse Inc. Yes
Series 224 224 Yes
Current Rating (Amps) 2.5 A 2.5 A Yes
Voltage Rating - AC 250 V 250 V Yes
Voltage Rating - DC 125 V 125 V Yes
Response Time Fast Blow Fast Blow Yes
Package / Case 2AG, 5mm x 15mm (Axial) 2AG, 5mm x 15mm (Axial) Yes
Mounting Type Through Hole Through Hole Yes
Fuse Type Cartridge, Glass Cartridge, Glass Yes
Breaking Capacity @ Rated Voltage 100A AC, 10kA DC 100A AC, 10kA DC Yes
Melting I²t 2.68 2.68 Yes
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C Yes
DC Cold Resistance 0.0372 Ohms 0.0372 Ohms Yes
RoHS Status ROHS3 Compliant ROHS3 Compliant Yes
Approval Agencies CE, CSA, PSE, UL CE, CSA, PSE, UL Yes
Product Status Active Active Yes

Engineering Selection Recommendations

Both the 022402.5MXP and 022402.5HXP maintain active product status within the Littelfuse 224 series. Selection between these parts is based on inventory availability rather than technical differentiation. Both components carry identical regulatory approvals (CE, CSA, PSE, UL) and maintain ROHS3 compliance, ensuring equivalent performance in circuit protection applications. The 022402.5MXP currently maintains higher inventory levels (1744 pcs) compared to the 022402.5HXP (1189 pcs), which may influence procurement decisions based on lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can the 022402.5HXP be used as a direct replacement for the 022402.5MXP?

A: Yes. Both parts are parametrically identical across all electrical and mechanical specifications, including current rating, voltage ratings, response time, package format, and breaking capacity. Direct substitution is supported without circuit modification.

Q: Are there any differences in approval certifications between these parts?

A: No. Both parts carry identical approval agency certifications: CE, CSA, PSE, and UL. Regulatory compliance is equivalent.

Q: Do these fuses have different operating temperature ranges?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C.

Q: Is the 2AG package format the same for both parts?

A: Yes. Both parts use the 2AG package format with 5mm x 15mm dimensions, ensuring identical PCB footprint and through-hole mounting compatibility.

Q: What is the melting I²t value, and is it the same for both parts?

A: The melting I²t value is 2.68 for both parts. This parameter defines the thermal energy required to melt the fuse element and is identical across both components.

Q: Are both parts RoHS compliant?

A: Yes. Both the 022402.5MXP and 022402.5HXP are ROHS3 compliant.

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