Littelfuse 0230005.HXSW Glass Axial Fuse 5A 125VAC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230005.HXSW is a 5A 125VAC slow-blow glass cartridge fuse with axial through-hole mounting. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain circuit protection functionality in applications where the original part is no longer available or when design updates require RoHS compliance and expanded voltage ratings.

Key Parameters

Parameter	Value
Current Rating	5 A
Voltage Rating - AC	125 V
Voltage Rating - DC	Not specified
Response Time	Slow Blow
Fuse Type	Cartridge, Glass
Package / Case	Cartridge, Non-Standard (Axial)
Mounting Type	Through Hole
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	0.0185 Ohms
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	RoHS non-compliant
Approval Agency	cUL, METI

Substitute Part Grouping Explanation

Substitute parts for the 0230005.HXSW are qualified based on the following electrical and mechanical parameters:

Current Rating: 5 A (exact match required)
Voltage Rating - AC: 125 V (exact match required)
Response Time: Slow Blow (exact match required)
Fuse Type: Cartridge, Glass (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)
Breaking Capacity @ Rated Voltage: 400A (exact match required)
Melting I²t: 267 (exact match required)

All substitute parts listed below meet these criteria. Substitute parts with active product status and RoHS3 compliance offer additional advantages over the obsolete main part.

Parameter Comparison

Part Number	Manufacturer	Current Rating (A)	Voltage AC (V)	Voltage DC (V)	Response Time	Size (mm)	Breaking Capacity (A)	Melting I²t	DC Resistance (Ohms)	Product Status	RoHS Status	Approvals	Inventory (Pcs)
0230005.HXSW	Littelfuse Inc.	5	125	Not specified	Slow Blow	4.50 x 14.50	400	267	0.0185	Obsolete	RoHS non-compliant	cUL, METI	995
0230005.HXSP	Littelfuse Inc.	5	125	125	Slow Blow	4.50 x 14.50	400	267	0.0186	Active	ROHS3 Compliant	CE, CSA, PSE, UL	904
0230005.HXP	Littelfuse Inc.	5	125	125	Slow Blow	4.50 x 14.50	400	267	0.0186	Active	ROHS3 Compliant	CE, CSA, PSE, UL	1000
0230005.MXF1P	Littelfuse Inc.	5	125	125	Slow Blow	4.50 x 14.50	400	267	0.0186	Active	ROHS3 Compliant	CE, CSA, PSE, UL	933
0230005.MXF23P	Littelfuse Inc.	5	125	125	Slow Blow	4.50 x 14.50	400	267	0.0186	Active	ROHS3 Compliant	CE, CSA, PSE, UL	901
0230005.MXP	Littelfuse Inc.	5	125	125	Slow Blow	4.50 x 14.50	400	267	0.0186	Active	ROHS3 Compliant	CE, CSA, PSE, UL	3302
0230005.VXP	Littelfuse Inc.	5	125	125	Slow Blow	4.50 x 14.50	400	267	0.0186	Active	ROHS3 Compliant	CE, CSA, PSE, UL	1061

Engineering Selection Recommendations

All substitute parts maintain electrical and mechanical equivalence to the 0230005.HXSW. Selection should prioritize the following factors:

Product Status: All substitute parts carry active product status, ensuring long-term availability and supply chain stability compared to the obsolete main part.

RoHS Compliance: All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements. The main part is RoHS non-compliant and should be replaced in new designs or production updates.

Regulatory Approvals: Substitute parts carry expanded approval certifications (CE, CSA, PSE, UL) compared to the main part (cUL, METI), providing broader geographic and application coverage.

DC Voltage Rating: Substitute parts specify 125V DC rating in addition to 125V AC, enabling use in both AC and DC circuits. The main part does not specify DC voltage capability.

Inventory Availability: 0230005.MXP offers the highest inventory level (3302 pcs), followed by 0230005.HXP (1000 pcs) and 0230005.VXP (1061 pcs), supporting high-volume procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 0230005.HXSW?

A: Yes. All substitute parts meet the required electrical and mechanical parameters: 5A current rating, 125V AC voltage rating, slow-blow response time, glass cartridge type, axial through-hole mounting, and identical physical dimensions (4.50mm x 14.50mm). Physical fit and electrical function are equivalent.

Q: What is the difference between the substitute parts?

A: All substitute parts are electrically and mechanically identical. Differences exist only in product designation and internal construction variants. Selection can be based on inventory availability, supply chain preference, or specific approval requirements for your application region.

Q: Why should I choose an active substitute part over the obsolete main part?

A: Active substitute parts ensure continued availability, support long-term supply chain planning, and comply with current RoHS regulations. The obsolete main part may become unavailable and does not meet modern environmental compliance standards.

Q: Does the addition of 125V DC rating on substitute parts affect AC-only applications?

A: No. The 125V DC rating is an additional capability that does not affect AC circuit operation. Substitute parts remain fully compatible with existing 125V AC applications.

Q: Are the DC cold resistance values different between the main part and substitutes?

A: Slightly. The main part specifies 0.0185 Ohms, while substitute parts specify 0.0186 Ohms. This negligible difference (0.0001 Ohms) has no practical impact on circuit performance or fuse operation.

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

A: For new designs, select based on inventory availability and supply chain logistics. 0230005.MXP, 0230005.HXP, and 0230005.VXP all offer robust inventory levels and identical electrical performance. All carry active product status and full RoHS3 compliance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message