Littelfuse 0324005.MXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0324005.MXP is a 5 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole mounted component is designed for fast-blow response characteristics and is housed in a 3AB/3AG package format measuring 0.275" diameter by 1.288" length. The part maintains active product status with full compliance to international safety standards including UL, CSA, CE, K-MARK, and PSE certifications. Substitute parts are identified when identical electrical ratings, mechanical dimensions, and approval certifications are maintained across the product line.

Substiute Parts

0324005.MXP

Littelfuse Inc.In Stock: 51100324005.MXP Datasheet

Current PartRFQ

0324005.HXP

Littelfuse Inc.In Stock: 10850324005.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0324005.MXP is determined by strict equivalence across the following critical parameters:

• Current Rating: 5 A (exact match required)
• Voltage Ratings: 250 V AC and 125 V DC (exact match required)
• Fuse Type and Response: Cartridge, Ceramic, Fast Blow (exact match required)
• Package Format: 3AB/3AG, 1/4" x 1-1/4" axial configuration (exact match required)
• Mounting: Through Hole (exact match required)
• Breaking Capacity: 750 A AC, 10 kA DC (exact match required)
• Thermal Characteristics: Operating range -55°C to 125°C, DC cold resistance 0.03 Ohms (exact match required)
• Regulatory Compliance: All approval agencies (CE, CSA, K-MARK, PSE, UL) must be present (exact match required)

The substitute part 0324005.HXP meets all these criteria and is classified as a parametric equivalent within the Littelfuse 324 series.

Parameter Comparison

Engineering Selection Recommendations

Both the 0324005.MXP and 0324005.HXP maintain active product status within the Littelfuse 324 series. Both parts carry identical regulatory certifications (UL, CSA, CE, K-MARK, PSE) and meet ROHS3 compliance requirements. Selection between these parts is based on availability and supply chain considerations, as all electrical, mechanical, and thermal specifications are identical. Both parts are suitable for direct substitution in applications requiring 5 A ceramic cartridge fuses with 250 V AC / 125 V DC ratings in through-hole 3AB/3AG package configurations.

Frequently Asked Questions (FAQ)

Q: Can 0324005.HXP be used as a direct replacement for 0324005.MXP?

A: Yes. Both parts are parametric equivalents with identical current ratings (5 A), voltage ratings (250 V AC, 125 V DC), fuse type (ceramic cartridge, fast blow), package format (3AB/3AG, 1/4" x 1-1/4"), mounting type (through hole), breaking capacity (750 A AC, 10 kA DC), thermal characteristics, and regulatory certifications.

Q: Are there any differences in approval certifications between these parts?

A: No. Both parts carry identical approval certifications: CE, CSA, K-MARK, PSE, and UL. Both are ROHS3 compliant.

Q: What determines substitution eligibility for this fuse?

A: Substitution is determined by exact equivalence in current rating, AC/DC voltage ratings, fuse type and response characteristics, package dimensions and format, mounting configuration, breaking capacity, operating temperature range, and regulatory compliance status.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. Both parts share identical through-hole mounting specifications and package dimensions (0.275" diameter x 1.288" length), making them mechanically and electrically interchangeable in circuit board layouts designed for the 3AB/3AG cartridge fuse format.

Q: What is the significance of the 26 melting I²t value?

A: The melting I²t of 26 defines the thermal energy required to melt the fuse element and is a critical parameter for circuit protection coordination. Both parts maintain this identical specification.