MDA-V-7-R Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The MDA-V-7-R is a 7 A, 250 V AC/DC ceramic cartridge fuse manufactured by Eaton - Electronics Division. This through-hole mounted fuse operates with slow-blow response characteristics and is housed in a 3AB, 3AG package format (1/4" x 1-1/4" axial). The component maintains Active product status with 1041 pieces currently in stock. Substitute parts are identified to address inventory availability, supply chain continuity, and equivalent functional performance within specified electrical and mechanical parameters.

Substiute Parts

MDA-V-7-R

Eaton - Electronics DivisionIn Stock: 1141MDA-V-7-R Datasheet

Current PartRFQ

BK/MDA-V-7-R

Eaton - Electronics DivisionIn Stock: 916BK/MDA-V-7-R Datasheet

DirectRFQ

0325007.HXP

Littelfuse Inc.In Stock: 11590325007.HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MDA-V-7-R are classified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is determined by the following parameters:

Critical Matching Parameters:

• Current Rating: 7 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)

Direct Substitute (BK/MDA-V-7-R): Manufactured by Eaton - Electronics Division, this part is identical to the main part across all critical parameters and represents a direct equivalent with interchangeable functionality.

Similar Substitute (0325007.HXP): Manufactured by Littelfuse Inc., this part matches all critical electrical and mechanical parameters. Dimensional tolerances remain within acceptable ranges for 3AB, 3AG package compatibility. Breaking capacity and melting I²t values differ but do not affect substitution eligibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

BK/MDA-V-7-R Selection: This part is the primary substitute option. Manufactured by Eaton - Electronics Division under the same product series (MDA), it provides identical electrical and mechanical specifications to the MDA-V-7-R. Both parts carry Active product status and hold equivalent regulatory approvals (CE, CSA, UL). Selection of BK/MDA-V-7-R is appropriate for direct replacement applications requiring no design modification.

0325007.HXP Selection: This Littelfuse Inc. part satisfies all critical substitution parameters and maintains Active product status. The component holds expanded regulatory approvals including K-MARK and PSE certifications in addition to CE, CSA, and UL. Dimensional variation (0.275" diameter versus 0.266") remains within acceptable tolerance for 3AB, 3AG package compatibility. The higher breaking capacity (400A versus 200A) and lower melting I²t value (47.3 versus 135) do not disqualify this part from substitution within the specified parameter framework. Selection is appropriate where Littelfuse supply chain availability is preferred or where expanded certifications provide additional compliance value.

Frequently Asked Questions (FAQ)

Q: Can BK/MDA-V-7-R be used as a direct replacement for MDA-V-7-R?

A: Yes. BK/MDA-V-7-R is manufactured by the same company (Eaton - Electronics Division) and matches all critical electrical and mechanical parameters including current rating (7 A), voltage rating (250 V), fuse type (Cartridge, Ceramic), response time (Slow Blow), package format (3AB, 3AG, 1/4" x 1-1/4"), and mounting type (Through Hole). No design modification is required.

Q: Is 0325007.HXP compatible with circuits designed for MDA-V-7-R?

A: Yes. The 0325007.HXP matches all critical substitution parameters: 7 A current rating, 250 V AC voltage rating, ceramic cartridge fuse type, slow-blow response, 3AB, 3AG package format, and through-hole mounting. Dimensional tolerance (0.275" diameter) remains within acceptable range for standard 3AB, 3AG fuse holders. The part is suitable for direct circuit substitution.

Q: What is the significance of the different breaking capacity values?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. MDA-V-7-R and BK/MDA-V-7-R both specify 200A breaking capacity at rated voltage, while 0325007.HXP specifies 400A. All three values exceed typical circuit requirements for 7 A fuses in standard applications. Breaking capacity difference does not affect substitution eligibility within the specified parameter set.

Q: Why does 0325007.HXP have a lower melting I²t value?

A: Melting I²t (135 for Eaton parts versus 47.3 for Littelfuse) reflects the thermal energy required to melt the fuse element. Lower I²t indicates faster thermal response under fault conditions. Both values are within acceptable ranges for slow-blow ceramic fuses. This parameter difference does not disqualify 0325007.HXP from substitution.

Q: Are all three parts RoHS compliant?

A: Yes. MDA-V-7-R, BK/MDA-V-7-R, and 0325007.HXP are all ROHS3 Compliant, meeting current environmental and material restriction requirements.

Q: Which substitute part should be selected for new designs?

A: Both BK/MDA-V-7-R and 0325007.HXP are suitable for new designs. BK/MDA-V-7-R provides identical specifications from the original manufacturer. 0325007.HXP offers expanded regulatory certifications (K-MARK, PSE) and higher breaking capacity. Selection depends on supply chain preference, certification requirements, and inventory availability.