Littelfuse 0325020.HXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325020.HXP is a 20 A ceramic cartridge fuse rated for 250 V AC and 60 V DC operation. This through-hole mounted fuse is designed for slow-blow response characteristics and is housed in a 3AB/3AG package format measuring 1/4" x 1-1/4" (6.99mm x 32.72mm). The part maintains active product status with full regulatory compliance across CE, CSA, K-MARK, PSE, and UL certifications. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, response time characteristics, and mounting compatibility to ensure direct circuit board replacement capability.

Substiute Parts

0325020.HXP

Littelfuse Inc.In Stock: 9050325020.HXP Datasheet

Current PartRFQ

0325020.MXDP

Littelfuse Inc.In Stock: 19670325020.MXDP Datasheet

Parametric EquivalentRFQ

0325020.MXP

Littelfuse Inc.In Stock: 27490325020.MXP Datasheet

Parametric EquivalentRFQ

8020.0605.PT

SCHURTER Inc.In Stock: 20438020.0605.PT Datasheet

MFR RecommendedRFQ

BK/MDA-V-20-R

Eaton - Electronics DivisionIn Stock: 1971BK/MDA-V-20-R Datasheet

MFR RecommendedRFQ

MDA-V-20-R

Eaton - Electronics DivisionIn Stock: 940MDA-V-20-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0325020.HXP are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents (Littelfuse Series 325): Parts 0325020.MXP and 0325020.MXDP maintain identical current rating (20 A), AC voltage rating (250 V), DC voltage rating (60 V), package dimensions (3AB/3AG, 1/4" x 1-1/4"), response time (Slow Blow), and mounting type (Through Hole). These parts are direct functional replacements with matching regulatory approvals and operating temperature ranges.

Manufacturer-Recommended Alternatives: Parts from SCHURTER (8020.0605.PT) and Eaton (BK/MDA-V-20-R, MDA-V-20-R) share the core electrical specifications of 20 A current rating and 250 V AC voltage rating. These alternatives maintain the same package format (3AB/3AG, 1/4" x 1-1/4"), mounting type (Through Hole), and response time (Slow Blow). Voltage and thermal specifications vary as detailed in the parameter comparison table.

Substitution eligibility is determined by matching: current rating, AC voltage rating, package/case format, mounting type, response time, and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Littelfuse Series 325): Parts 0325020.MXP and 0325020.MXDP are parametric equivalents suitable for direct substitution. Both maintain identical electrical ratings, package specifications, and regulatory certifications. Selection between these Littelfuse alternatives depends on application-specific requirements for melting I²t characteristics and DC cold resistance values.

Cross-Manufacturer Alternatives: The SCHURTER 8020.0605.PT and Eaton MDA series (BK/MDA-V-20-R, MDA-V-20-R) provide functional alternatives where core electrical specifications align. The Eaton parts feature higher DC voltage ratings (125 V versus 60 V) and increased breaking capacity, suitable for applications requiring enhanced fault protection. The SCHURTER part operates within a narrower temperature range (-40°C to 85°C) compared to the Littelfuse reference part (-55°C to 125°C).

All substitute parts maintain ROHS3 compliance and active product status. Selection should account for regulatory certification requirements specific to the end application, with particular attention to approval agency alignment (CE, CSA, UL, K-MARK, PSE).

Frequently Asked Questions (FAQ)

Q: Can 0325020.MXP and 0325020.MXDP be used interchangeably with 0325020.HXP?

A: Yes. Both parts share identical current rating (20 A), AC voltage rating (250 V), DC voltage rating (60 V), package format (3AB/3AG, 1/4" x 1-1/4"), and mounting type (Through Hole). Differences in melting I²t and DC cold resistance are application-dependent considerations.

Q: What is the primary difference between Littelfuse and Eaton substitute parts?

A: Littelfuse 0325020.MXP and 0325020.MXDP maintain the 60 V DC rating of the reference part. Eaton MDA series parts (BK/MDA-V-20-R, MDA-V-20-R) provide 125 V DC rating with higher breaking capacity (1.5kA AC, 10kA DC versus 400A AC, 500A DC). The Eaton parts are suitable for applications requiring enhanced DC voltage tolerance and fault protection.

Q: Are dimensional variations between substitute parts significant?

A: Dimensional differences are minimal. The reference part measures 0.275" diameter x 1.288" length. SCHURTER and Eaton alternatives measure 0.270" and 0.266" diameter respectively, with comparable lengths. These variations remain within standard 3AB/3AG package tolerances and do not affect through-hole mounting compatibility.

Q: Which substitute part has the widest operating temperature range?

A: The Littelfuse 0325020.HXP, 0325020.MXP, and 0325020.MXDP all operate across -55°C to 125°C. The SCHURTER 8020.0605.PT operates within -40°C to 85°C, a narrower range. Temperature range selection depends on the thermal environment of the end application.

Q: Do all substitute parts carry the same regulatory certifications?

A: No. The reference part 0325020.HXP carries CE, CSA, K-MARK, PSE, and UL certifications. Littelfuse 0325020.MXP maintains all certifications; 0325020.MXDP carries CE, CSA, and UL only. SCHURTER 8020.0605.PT carries cURus certification. Eaton parts carry CE, CSA, and UL. Certification alignment with end-application requirements must be verified.

Q: What does melting I²t indicate in fuse selection?

A: Melting I²t represents the thermal energy required to melt the fuse element. The reference part 0325020.HXP has melting I²t of 575. The 0325020.MXDP variant has 1900, indicating slower thermal response. SCHURTER and Eaton parts have 750 and 483.45 respectively. Selection depends on circuit protection requirements and inrush current tolerance.