Littelfuse 0230005.MXSP Glass Axial Fuse 5A 125VAC/VDC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230005.MXSP is a 5A 125VAC/VDC glass cartridge fuse with axial through-hole mounting. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The substitute parts listed maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Specification
Current Rating	5 A
Voltage Rating (AC)	125 V
Voltage Rating (DC)	125 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Mounting Type	Through Hole
Package / Case	Cartridge, Non-Standard (Axial)
Size / Dimension	0.177" Dia x 0.571" L (4.50mm x 14.50mm)
Breaking Capacity @ Rated Voltage	400A
Melting I²t	267
DC Cold Resistance	0.0186 Ohms
Operating Temperature Range	-55°C ~ 125°C
Approval Agencies	CE, CSA, PSE, UL
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

All substitute parts are classified as parametric equivalents to the 0230005.MXSP. Substitution eligibility is determined by strict matching of the following critical parameters:

Current Rating: 5 A
Voltage Rating (AC/DC): 125 V / 125 V
Fuse Type: Cartridge, Glass
Response Time: Slow Blow
Mounting Type: Through Hole
Physical Dimensions: 0.177" Dia x 0.571" L (4.50mm x 14.50mm)
Breaking Capacity: 400A
Melting I²t: 267
DC Cold Resistance: 0.0186 Ohms
Operating Temperature Range: -55°C ~ 125°C
Approval Agencies: CE, CSA, PSE, UL
RoHS Compliance: ROHS3 Compliant

All substitute parts meet these criteria without exception. Differences exist only in packaging configuration and product status.

Parameter Comparison

Part Number	Manufacturer	Product Status	Current Rating	Voltage (AC/DC)	Response Time	Dimensions	Breaking Capacity	Melting I²t	DC Cold Resistance	Operating Temp	Approvals	RoHS	Inventory
0230005.MXSP	Littelfuse Inc.	Obsolete	5 A	125V / 125V	Slow Blow	0.177" x 0.571"	400A	267	0.0186 Ω	-55°C ~ 125°C	CE, CSA, PSE, UL	ROHS3	728 Pcs
0230005.HXP	Littelfuse Inc.	Active	5 A	125V / 125V	Slow Blow	0.177" x 0.571"	400A	267	0.0186 Ω	-55°C ~ 125°C	CE, CSA, PSE, UL	ROHS3	1000 Pcs
0230005.HXSP	Littelfuse Inc.	Active	5 A	125V / 125V	Slow Blow	0.177" x 0.571"	400A	267	0.0186 Ω	-55°C ~ 125°C	CE, CSA, PSE, UL	ROHS3	904 Pcs
0230005.MXF1P	Littelfuse Inc.	Active	5 A	125V / 125V	Slow Blow	0.177" x 0.571"	400A	267	0.0186 Ω	-55°C ~ 125°C	CE, CSA, PSE, UL	ROHS3	933 Pcs
0230005.MXF23P	Littelfuse Inc.	Active	5 A	125V / 125V	Slow Blow	0.177" x 0.571"	400A	267	0.0186 Ω	-55°C ~ 125°C	CE, CSA, PSE, UL	ROHS3	901 Pcs
0230005.MXP	Littelfuse Inc.	Active	5 A	125V / 125V	Slow Blow	0.177" x 0.571"	400A	267	0.0186 Ω	-55°C ~ 125°C	CE, CSA, PSE, UL	ROHS3	3302 Pcs
0230005.VXP	Littelfuse Inc.	Active	5 A	125V / 125V	Slow Blow	0.177" x 0.571"	400A	267	0.0186 Ω	-55°C ~ 125°C	CE, CSA, PSE, UL	ROHS3	1061 Pcs

Engineering Selection Recommendations

All substitute parts are direct parametric equivalents to the 0230005.MXSP. Selection among the available substitutes should be based on the following factors:

Product Status: All substitute parts carry Active product status, ensuring long-term availability and continued manufacturer support. The original 0230005.MXSP is classified as Obsolete.

Compliance and Certifications: All substitute parts maintain identical approval agency certifications (CE, CSA, PSE, UL) and ROHS3 compliance status, meeting the same regulatory requirements as the original part.

Inventory Availability: The 0230005.MXP variant offers the highest inventory level at 3302 pieces, followed by 0230005.HXP at 1000 pieces and 0230005.VXP at 1061 pieces. All variants maintain sufficient stock for production requirements.

Electrical and Mechanical Compatibility: All substitute parts are electrically and mechanically interchangeable with the 0230005.MXSP. No circuit modifications or mechanical redesign is required for substitution.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the 0230005.MXSP?

A: Yes. All listed substitute parts are parametric equivalents with identical electrical ratings (5A, 125VAC/VDC), response characteristics (Slow Blow), physical dimensions (0.177" Dia x 0.571" L), and performance specifications (400A breaking capacity, 267 melting I²t). Direct substitution is supported without circuit or mechanical modifications.

Q: What is the difference between the substitute part numbers?

A: The substitute parts differ only in packaging configuration and internal manufacturing specifications. All electrical and mechanical parameters remain identical. The part number suffix indicates different packaging or manufacturing batches within the Littelfuse 230 series.

Q: Why is the original 0230005.MXSP classified as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support for this specific part number variant. However, parametric equivalents remain available in active production status, ensuring continued supply for replacement and new applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts carry ROHS3 Compliant status, meeting the same environmental and material restriction requirements as the original 0230005.MXSP.

Q: Do all substitute parts have the same approval certifications?

A: Yes. All substitute parts carry identical approval agency certifications: CE, CSA, PSE, and UL. No additional qualification or testing is required when substituting between these parts.

Q: Which substitute part should I select for new designs?

A: Selection should be based on availability and supply chain requirements. The 0230005.MXP offers the highest inventory level and is recommended for applications requiring maximum supply assurance. All variants are electrically and mechanically equivalent.

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