Littelfuse 0332005.MXP Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0332005.MXP is a 5 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing procurement and system maintenance. The fuse is designed for fast-blow response characteristics and requires a compatible holder (3AB, 3AG format, 1/4" x 1-1/4").

Substiute Parts

0332005.MXP

Littelfuse Inc.In Stock: 7790332005.MXP Datasheet

Current PartRFQ

0314005.MXP

Littelfuse Inc.In Stock: 66390314005.MXP Datasheet

MFR RecommendedRFQ

0314005.HXP

Littelfuse Inc.In Stock: 7440314005.HXP Datasheet

Parametric EquivalentRFQ

0314005.VXP

Littelfuse Inc.In Stock: 9250314005.VXP Datasheet

Parametric EquivalentRFQ

0332005.HXP

Littelfuse Inc.In Stock: 12270332005.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0332005.MXP is determined by the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 5 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Response Time: Fast Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
• Size / Dimension: 0.250" Dia x 1.250" L (6.35mm x 31.75mm)
• Fuse Type: Cartridge, Ceramic
• Mounting Type: Requires Holder

Acceptable Variation Parameters:

• Breaking Capacity @ Rated Voltage (higher values acceptable)
• Melting I²t (higher values acceptable)
• DC Cold Resistance (minor variations acceptable)
• Approval Agency certifications (subset or superset acceptable)
• Product Status (active preferred over obsolete)

All identified substitute parts meet the mandatory matching parameters. The 0314005 series (MXP, HXP, VXP variants) and 0332005.HXP represent active or equivalent alternatives with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 0314005.MXP

The 0314005.MXP is the manufacturer-recommended substitute for the obsolete 0332005.MXP. This part maintains identical electrical and mechanical specifications while offering active product status and expanded approval agency certifications (CE, CSA, K-MARK, PSE, UL). The enhanced breaking capacity (750A AC, 10kA DC versus 100A) provides superior fault protection margins without affecting normal operation.

Secondary Alternatives: 0314005.HXP and 0314005.VXP

Both 0314005.HXP and 0314005.VXP are parametric equivalents with identical electrical characteristics and active product status. These variants differ only in packaging format (bulk) and regional approval certifications. Selection between these three 0314 series variants should be based on regional compliance requirements and packaging availability.

Compatibility Note: 0332005.HXP

The 0332005.HXP remains within the same 332 series as the original part but shares obsolete product status. This part is electrically and mechanically equivalent but does not provide the advantage of active product status offered by the 0314 series alternatives.

Frequently Asked Questions (FAQ)

Q: Can the 0314005.MXP directly replace the 0332005.MXP in existing applications?

A: Yes. Both parts are identical in current rating (5 A), voltage ratings (250 V AC, 125 V DC), response time (fast blow), and physical dimensions (0.250" Dia x 1.250" L). They use the same holder format (3AB, 3AG) and operate across the same temperature range (-55°C ~ 125°C). The 0314005.MXP is the manufacturer-recommended substitute.

Q: What is the significance of the higher breaking capacity in the 0314 series?

A: The 0314005 variants specify 750A AC and 10kA DC breaking capacity compared to 100A in the 332 series. This represents enhanced fault protection capability and does not affect normal circuit operation. Higher breaking capacity is a beneficial characteristic for component substitution.

Q: Are there differences between 0314005.MXP, 0314005.HXP, and 0314005.VXP?

A: These three parts are parametrically equivalent with identical electrical and mechanical specifications. Differences exist only in packaging format (all bulk) and regional approval certifications. The MXP variant carries the broadest certification set (CE, CSA, K-MARK, PSE, UL). Selection should be based on regional regulatory requirements and inventory availability.

Q: Why is the 0332005.MXP classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. The 0314 series represents the active replacement line. For new designs and ongoing procurement, the 0314005.MXP is the recommended selection.

Q: Is the 0332005.HXP a suitable alternative to the 0332005.MXP?

A: The 0332005.HXP is electrically and mechanically equivalent but shares obsolete product status with the original part. While functionally compatible, the 0314005.MXP is preferred due to active product status and superior breaking capacity specifications.

Q: What holder types are compatible with these fuses?

A: All listed parts require the same holder format: 3AB, 3AG, 1/4" x 1-1/4". Existing holders designed for the 0332005.MXP are directly compatible with all substitute parts listed.