Littelfuse 0230.750HXSW Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.750HXSW is a 750 mA, 250 V AC glass cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in non-standard axial configuration. This part is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement continuity. The substitute parts listed maintain identical electrical performance parameters while offering improved compliance status and active product availability.

Key Parameters

Parameter	Value
Current Rating	750 mA
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 Range	-55°C ~ 125°C
Melting I²t	2.95
DC Cold Resistance	0.34 Ohms
Breaking Capacity @ Rated Voltage	35A

Substitute Part Grouping Explanation

Substitution of the 0230.750HXSW is based on strict equivalence of the following electrical and mechanical parameters:

Current Rating: 750 mA (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)
Size / Dimension: 0.177" Dia x 0.571" L (4.50mm x 14.50mm) (exact match required)
Melting I²t: 2.95 (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)

All substitute parts listed below meet these criteria. The primary distinction between the main part and substitutes is product status (obsolete vs. active) and regulatory compliance improvements (RoHS3 compliance and expanded approval certifications).

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage AC	Voltage DC	Response Time	Breaking Capacity AC	Breaking Capacity DC	Melting I²t	DC Cold Resistance	Product Status	RoHS Status	Approvals
0230.750HXSW	Littelfuse Inc.	750 mA	250 V	—	Slow Blow	35A	—	2.95	0.34 Ω	Obsolete	Non-compliant	CSA, UL
0230.750HXSP	Littelfuse Inc.	750 mA	250 V	125 V	Slow Blow	35A	10kA	2.95	0.343 Ω	Active	ROHS3 Compliant	CE, CSA, UL
0230.750HXP	Littelfuse Inc.	750 mA	250 V	125 V	Slow Blow	35A	10kA	2.95	0.343 Ω	Active	ROHS3 Compliant	CE, CSA, UL
0230.750MXP	Littelfuse Inc.	750 mA	250 V	125 V	Slow Blow	35A	10kA	2.95	0.343 Ω	Active	ROHS3 Compliant	CE, CSA, UL
0230.750MXSP	Littelfuse Inc.	750 mA	250 V	125 V	Slow Blow	35A	10kA	2.95	0.343 Ω	Active	ROHS3 Compliant	CE, CSA, UL
0230.750VXP	Littelfuse Inc.	750 mA	250 V	125 V	Slow Blow	35A	10kA	2.95	0.343 Ω	Active	ROHS3 Compliant	CE, CSA, UL
0230.750VXSP	Littelfuse Inc.	750 mA	250 V	125 V	Slow Blow	35A	10kA	2.95	0.343 Ω	Active	ROHS3 Compliant	CE, CSA, UL

Engineering Selection Recommendations

All substitute parts maintain electrical and mechanical equivalence to the 0230.750HXSW. Selection among active alternatives should be based on the following factors:

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

Regulatory Compliance: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The main part is RoHS non-compliant.

Certification Scope: Substitute parts include CE certification in addition to CSA and UL approvals present on the main part, providing broader international regulatory recognition.

DC Voltage Rating: Substitute parts include 125 V DC rating, providing additional application flexibility. The main part specifies AC only. This enhancement does not restrict AC-only applications.

Breaking Capacity: Substitute parts specify 10kA DC breaking capacity in addition to 35A AC, providing enhanced performance data. The main part specifies 35A breaking capacity without DC specification.

Inventory Availability: Substitute parts demonstrate active stock levels ranging from 732 to 1871 pieces, supporting immediate procurement needs.

For direct replacement in existing AC-only designs, any substitute part provides equivalent performance with improved compliance and availability. Part number selection may be driven by packaging preference (bulk) or internal inventory management practices, as all alternatives are functionally identical.

Frequently Asked Questions (FAQ)

Q: Can 0230.750HXSP, 0230.750HXP, 0230.750MXP, 0230.750MXSP, 0230.750VXP, or 0230.750VXSP be used as direct replacements for 0230.750HXSW?

A: Yes. All substitute parts maintain identical current rating (750 mA), AC voltage rating (250 V), fuse type (cartridge, glass), response time (slow blow), physical dimensions (0.177" Dia x 0.571" L), melting I²t (2.95), and operating temperature range (-55°C ~ 125°C). Electrical performance in AC applications is equivalent.

Q: What is the difference between the main part and substitute parts?

A: The 0230.750HXSW is classified as obsolete with RoHS non-compliance and CSA/UL approvals only. All substitute parts are active products with ROHS3 compliance, CE certification, and CSA/UL approvals. Substitute parts also include 125 V DC rating and 10kA DC breaking capacity specifications, providing enhanced application flexibility.

Q: Are there differences between the substitute part numbers (HXSP, HXP, MXP, MXSP, VXP, VXSP)?

A: All substitute parts are electrically and mechanically identical. Differences in part numbering reflect internal Littelfuse product line designations. Selection among these alternatives may be based on packaging preference, internal inventory systems, or regional availability. Electrical performance and physical compatibility are identical across all variants.

Q: Can these fuses be used in DC applications?

A: The main part (0230.750HXSW) specifies AC only. Substitute parts include 125 V DC rating, enabling use in DC circuits up to 125 V. For AC-only applications, both the main part and substitutes are suitable. For DC applications, substitute parts provide rated DC performance.

Q: What is the physical package compatibility?

A: All parts use identical non-standard axial cartridge configuration with dimensions 0.177" Dia x 0.571" L (4.50mm x 14.50mm). Through-hole mounting compatibility is maintained across all alternatives.

Q: What certifications apply to these fuses?

A: The main part carries CSA and UL approvals. All substitute parts carry CE, CSA, and UL approvals, providing broader international regulatory recognition.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message