Littelfuse 0230004.VXP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230004.VXP is a 4A 125VAC/VDC glass cartridge fuse with axial through-hole mounting. This slow-blow fuse is designed for circuit protection in applications requiring reliable overcurrent interruption at rated voltage levels. The part maintains Active product status with full compliance to international safety standards including CE, CSA, PSE, and UL certifications. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.

Substiute Parts

0230004.VXP

Littelfuse Inc.In Stock: 8940230004.VXP Datasheet

Current PartRFQ

0230004.HXP

Littelfuse Inc.In Stock: 9690230004.HXP Datasheet

Parametric EquivalentRFQ

0230004.MXP

Littelfuse Inc.In Stock: 40410230004.MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0230004.VXP are determined by strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Current Rating: 4 A
• Voltage Rating (AC): 125 V
• Voltage Rating (DC): 125 V
• Response Time: Slow Blow
• Breaking Capacity @ Rated Voltage: 400A
• Melting I²t: 148
• DC Cold Resistance: 0.0258 Ohms

Mechanical Parameters (Must Match Exactly):

• 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)

Compliance Parameters (Must Match Exactly):

• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• Approval Agencies: CE, CSA, PSE, UL

All identified substitute parts meet these criteria without exception.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0230004.VXP, 0230004.HXP, and 0230004.MXP—are functionally equivalent and maintain Active product status. Selection between these parts may be based on inventory availability and supply chain considerations:

• 0230004.VXP: 838 Pcs in stock
• 0230004.HXP: 959 Pcs in stock
• 0230004.MXP: 4013 Pcs in stock

All parts carry identical compliance certifications (CE, CSA, PSE, UL) and RoHS3 compliance status, making them suitable for applications with equivalent regulatory requirements. No electrical or mechanical differentiation exists between these parts.

Frequently Asked Questions (FAQ)

Q: Can 0230004.HXP or 0230004.MXP be used as direct replacements for 0230004.VXP?

A: Yes. All three parts are parametrically equivalent across electrical ratings (4A, 125VAC/VDC), response characteristics (Slow Blow), mechanical dimensions (0.177" Dia x 0.571" L), and compliance certifications. Direct substitution is valid without circuit modification.

Q: Are there any differences in breaking capacity or thermal characteristics?

A: No. All three parts share identical breaking capacity (400A @ rated voltage), melting I²t (148), DC cold resistance (0.0258 Ohms), and operating temperature range (-55°C ~ 125°C).

Q: Do all substitute parts meet the same safety certifications?

A: Yes. All parts carry CE, CSA, PSE, and UL approvals and maintain ROHS3 compliance status.

Q: What determines the choice between these three part numbers?

A: Since electrical and mechanical parameters are identical, selection is based on inventory availability and supply chain logistics. 0230004.MXP has the highest stock level at 4013 pieces.

Q: Are there any packaging or mounting differences?

A: No. All parts use identical through-hole axial cartridge packaging with non-standard dimensions of 0.177" diameter by 0.571" length (4.50mm x 14.50mm).