Littelfuse 0230.500HXASP Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.500HXASP is a 500 mA glass cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole mounted fuse is designed for circuit protection in applications requiring slow-blow response characteristics. The part maintains active product status with full compliance to CE, CSA, and UL approval agencies. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.

Substiute Parts

0230.500HXASP

Littelfuse Inc.In Stock: 11060230.500HXASP Datasheet

Current PartRFQ

0230.500HXP

Littelfuse Inc.In Stock: 11680230.500HXP Datasheet

Parametric EquivalentRFQ

0230.500MXP

Littelfuse Inc.In Stock: 20010230.500MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0230.500HXASP are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters:

• Current Rating: 500 mA (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Voltage Rating - DC: 125 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 35A AC, 10kA DC (exact match required)
• Melting I²t: 1.16 (exact match required)
• DC Cold Resistance: 0.6935 Ohms (exact match required)

Mechanical Parameters:

• Fuse Type: Cartridge, Glass (exact match required)
• Mounting Type: Through Hole (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)

Compliance Parameters:

• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Approval Agency: CE, CSA, UL (exact match required)

The identified substitutes meet all specified parameters and maintain functional and regulatory equivalence.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0230.500HXASP, 0230.500HXP, and 0230.500MXP—are active products from Littelfuse Inc. with identical electrical, mechanical, and compliance specifications. Selection between these parts may be based on packaging format and inventory availability:

• 0230.500HXASP: Supplied in standard packaging format with 1074 units in stock.
• 0230.500HXP: Supplied in bulk packaging with 1135 units in stock.
• 0230.500MXP: Supplied in bulk packaging with 1942 units in stock.

All parts maintain full compliance with CE, CSA, and UL approval agencies and ROHS3 regulatory requirements. No technical differentiation exists between these parts for circuit protection applications.

Frequently Asked Questions (FAQ)

Q: Can 0230.500HXP or 0230.500MXP be used as direct replacements for 0230.500HXASP?

A: Yes. All three parts share identical electrical ratings (500 mA, 250 V AC, 125 V DC), response characteristics (slow-blow), mechanical dimensions (0.177" Dia x 0.571" L), and regulatory approvals (CE, CSA, UL). Direct substitution is supported for circuit protection applications.

Q: What is the difference between these substitute parts?

A: The primary difference is packaging format. The 0230.500HXASP is supplied in standard packaging, while 0230.500HXP and 0230.500MXP are supplied in bulk packaging. Electrical and mechanical specifications are identical.

Q: Are these parts interchangeable in through-hole PCB applications?

A: Yes. All parts are through-hole mounted cartridge fuses with identical axial dimensions (4.50mm x 14.50mm) and mounting characteristics. PCB footprints and assembly processes remain unchanged.

Q: Do all substitute parts meet the same regulatory requirements?

A: Yes. All parts are ROHS3 compliant and carry CE, CSA, and UL approvals. Operating temperature range (-55°C ~ 125°C) and breaking capacity specifications (35A AC, 10kA DC) are identical across all parts.

Q: What is the melting I²t value, and why is it important for substitution?

A: The melting I²t value of 1.16 defines the thermal energy required to melt the fuse element. This parameter must match exactly for proper circuit protection coordination. All substitute parts maintain this specification.