Littelfuse 0230002.HXW Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230002.HXW is a 2 A, 250 V AC glass cartridge fuse with axial through-hole mounting. This part is classified as obsolete. Due to its obsolete status, equivalent substitute parts from the active Littelfuse 230 series are available to maintain circuit protection functionality in applications requiring 2 A rated current at 250 V AC.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating - AC	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	Cartridge, Non-Standard (Axial)
Mounting Type	Through Hole
Size / Dimension	0.177" Dia x 0.571" L (4.50mm x 14.50mm)
Operating Temperature	-55°C ~ 125°C
Melting I²t	30
DC Cold Resistance	0.0692 Ohms

Substitute Part Grouping Explanation

Substitute parts for the 0230002.HXW are qualified based on the following criteria:

Current Rating: 2 A (exact match required)
Voltage Rating - AC: 250 V (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Slow Blow (exact match required)
Package / Case: Cartridge, Non-Standard (Axial) (exact match required)
Mounting Type: Through Hole (exact match required)
Size / Dimension: 0.177" Dia x 0.571" L (4.50mm x 14.50mm) (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Melting I²t: 30 (exact match required)

All substitute parts listed below meet these core electrical and mechanical parameters. Substitute parts may include additional DC voltage ratings and enhanced breaking capacity specifications not present in the main part.

Parameter Comparison

Parameter	0230002.HXW	0230002.HXP	0230002.HXSP	0230002.MXP	0230002.MXSP	0230002.VXP	0230002.VXSP
Current Rating (Amps)	2 A	2 A	2 A	2 A	2 A	2 A	2 A
Voltage Rating - AC	250 V	250 V	250 V	250 V	250 V	250 V	250 V
Voltage Rating - DC	—	125 V	125 V	125 V	125 V	125 V	125 V
Fuse Type	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Package / Case	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Size / Dimension	0.177" Dia x 0.571" L (4.50mm x 14.50mm)	0.177" Dia x 0.571" L (4.50mm x 14.50mm)	0.177" Dia x 0.571" L (4.50mm x 14.50mm)	0.177" Dia x 0.571" L (4.50mm x 14.50mm)	0.177" Dia x 0.571" L (4.50mm x 14.50mm)	0.177" Dia x 0.571" L (4.50mm x 14.50mm)	0.177" Dia x 0.571" L (4.50mm x 14.50mm)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Melting I²t	30	30	30	30	30	30	30
DC Cold Resistance	0.0692 Ohms	0.0698 Ohms	0.0698 Ohms	0.0698 Ohms	0.0698 Ohms	0.0698 Ohms	0.0698 Ohms
Breaking Capacity @ Rated Voltage	100A	35A AC, 10kA DC	35A AC, 10kA DC	35A AC, 10kA DC	35A AC, 10kA DC	100A AC, 10kA DC	100A AC, 10kA DC
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	CSA, METI, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL

Engineering Selection Recommendations

All substitute parts are active products from the Littelfuse 230 series and maintain the core electrical and mechanical specifications of the obsolete 0230002.HXW. Selection among substitute parts depends on application requirements:

For AC-only applications: Parts 0230002.HXP and 0230002.HXSP provide 250 V AC rated protection with 35 A breaking capacity and are ROHS3 compliant with CE, CSA, PSE, and UL certifications.

For AC/DC applications: Parts 0230002.MXP, 0230002.MXSP, 0230002.VXP, and 0230002.VXSP provide dual voltage ratings (250 V AC / 125 V DC) with ROHS3 compliance and CE, CSA, PSE, and UL certifications. Parts 0230002.VXP and 0230002.VXSP offer 100 A AC breaking capacity, matching the original part specification.

For RoHS compliance: All substitute parts are ROHS3 compliant, addressing the non-compliant status of the original 0230002.HXW.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 0230002.HXW?

A: All listed substitute parts share the same current rating (2 A), AC voltage rating (250 V), fuse type (glass cartridge), response time (slow blow), package (non-standard axial), mounting type (through hole), physical dimensions (0.177" Dia x 0.571" L), operating temperature range (-55°C ~ 125°C), and melting I²t (30). They are electrically and mechanically compatible for AC applications.

Q: What is the difference between parts with 35 A and 100 A breaking capacity?

A: Breaking capacity defines the maximum fault current the fuse can safely interrupt. The 0230002.HXW and 0230002.VXP/0230002.VXSP have 100 A AC breaking capacity. Parts 0230002.HXP, 0230002.HXSP, 0230002.MXP, and 0230002.MXSP have 35 A AC breaking capacity. Selection depends on the maximum fault current expected in the application circuit.

Q: Why do some substitute parts have DC voltage ratings when the original does not?

A: The substitute parts 0230002.HXP, 0230002.HXSP, 0230002.MXP, 0230002.MXSP, 0230002.VXP, and 0230002.VXSP include 125 V DC ratings, providing expanded application flexibility. This additional specification does not affect AC-only applications and maintains full compatibility with the original 250 V AC requirement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, whereas the original 0230002.HXW is RoHS non-compliant. This compliance improvement applies to all substitute options.

Q: What certifications do the substitute parts carry?

A: All substitute parts carry CE, CSA, PSE, and UL certifications. The original 0230002.HXW carried CSA, METI, and UL certifications. The substitute parts provide broader international certification coverage.

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