Littelfuse 0332007.HXP Ceramic Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0332007.HXP is a 7 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation with fast-blow response characteristics. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing system support and procurement. The fuse is designed for applications requiring reliable overcurrent protection in industrial and commercial equipment utilizing 3AB, 3AG holder configurations.

Substiute Parts

0332007.HXP

Littelfuse Inc.In Stock: 7610332007.HXP Datasheet

Current PartRFQ

0314007.HXP

Littelfuse Inc.In Stock: 11090314007.HXP Datasheet

MFR RecommendedRFQ

0314007.MXP

Littelfuse Inc.In Stock: 20310314007.MXP Datasheet

Parametric EquivalentRFQ

0314007.VXP

Littelfuse Inc.In Stock: 9540314007.VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 0332007.HXP is based on strict electrical and mechanical parameter matching. All substitute parts maintain identical current rating (7 A), AC voltage rating (250 V), DC voltage rating (125 V), response time classification (Fast Blow), and physical package dimensions (3AB, 3AG, 1/4" x 1-1/4"). All substitutes are from the active Littelfuse 314 series and comply with ROHS3 requirements.

The three substitute parts—0314007.HXP, 0314007.MXP, and 0314007.VXP—are parametrically equivalent and interchangeable based on the following critical parameters:

• Current Rating: 7 A
• Voltage Ratings: 250 V AC / 125 V DC
• Package Configuration: 3AB, 3AG, 1/4" x 1-1/4"
• Response Characteristic: Fast Blow
• Operating Temperature: -55°C ~ 125°C

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—0314007.HXP, 0314007.MXP, and 0314007.VXP—are direct functional equivalents of the obsolete 0332007.HXP based on matching electrical ratings and physical package specifications. The substitute parts are manufactured by Littelfuse Inc. and maintain active product status, ensuring long-term availability and supply chain continuity.

The 314 series substitutes provide enhanced regulatory compliance with expanded approval agency certifications (CE, CSA, K-MARK, PSE, UL for HXP and MXP; CE, CSA, KC, PSE, UL for VXP) compared to the original 332 series component. All substitutes maintain ROHS3 compliance and identical operating temperature ranges.

Selection among the three substitute options should be based on packaging requirements and regional certification needs. The HXP variant offers CSA and K-MARK certifications; the MXP variant provides identical certifications; the VXP variant includes KC certification in place of K-MARK. All three are electrically and mechanically interchangeable for the 0332007.HXP application.

Frequently Asked Questions (FAQ)

Q: Are the 0314007.HXP, 0314007.MXP, and 0314007.VXP fuses directly interchangeable with the 0332007.HXP?

A: Yes. All three substitute parts maintain identical current rating (7 A), voltage ratings (250 V AC / 125 V DC), response time (Fast Blow), and physical dimensions (3AB, 3AG, 1/4" x 1-1/4"). They are mechanically and electrically compatible for direct replacement in existing 3AB and 3AG holder configurations.

Q: What is the difference between the three substitute part numbers?

A: The three parts are parametrically equivalent with differences limited to regulatory certifications and packaging designations. The HXP and MXP variants carry identical certifications (CE, CSA, K-MARK, PSE, UL). The VXP variant includes KC certification instead of K-MARK. Selection should be based on regional compliance requirements and end-use application certifications.

Q: Can I use these substitutes in equipment originally designed for the 0332007.HXP?

A: Yes. The substitute parts are designed for direct replacement in applications utilizing 3AB or 3AG fuse holders. Verify that your equipment holder is compatible with the 1/4" x 1-1/4" (6.35mm x 31.75mm) cartridge dimensions and 7 A current rating requirements.

Q: What certifications do the substitute parts carry?

A: The 0314007.HXP and 0314007.MXP carry CE, CSA, K-MARK, PSE, and UL certifications. The 0314007.VXP carries CE, CSA, KC, PSE, and UL certifications. All three maintain ROHS3 compliance.

Q: Are there any performance differences between the original and substitute parts?

A: The substitute parts maintain identical electrical ratings and response characteristics. The 314 series substitutes feature enhanced breaking capacity (750A AC, 10kA DC versus 100A) and higher melting I²t values (71 versus 10.58), providing improved performance margins while maintaining the same protective function for the specified 7 A current rating.