Equivalent & Substitute Parts for MDA-V-12-R

Part Overview

The MDA-V-12-R is a 12 A, 250 V AC ceramic cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for through-hole mounting in 3AB, 3AG package format with slow-blow response characteristics. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system maintenance and design updates. Active alternatives from both Eaton and third-party manufacturers provide functional equivalency with updated product status and compliance certifications.

Substiute Parts

MDA-V-12-R

Eaton - Electronics DivisionIn Stock: 876MDA-V-12-R Datasheet

Current PartRFQ

BK/MDA-V-12-R

Eaton - Electronics DivisionIn Stock: 1042BK/MDA-V-12-R Datasheet

Parametric EquivalentRFQ

0325.500HXP

Littelfuse Inc.In Stock: 12240325.500HXP Datasheet

SimilarRFQ

0325.500MXP

Littelfuse Inc.In Stock: 11110325.500MXP Datasheet

SimilarRFQ

0325012.MXDP

Littelfuse Inc.In Stock: 8330325012.MXDP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MDA-V-12-R is determined by strict alignment of the following critical parameters:

Primary Equivalency Criteria:

• Current Rating: 12 A
• Voltage Rating - AC: 250 V
• Fuse Type: Cartridge, Ceramic
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial)
• Response Time: Slow Blow
• Mounting Type: Through Hole
• Approval Agency: CE, CSA, UL

Parametric Equivalent: The BK/MDA-V-12-R from Eaton - Electronics Division matches all critical parameters of the MDA-V-12-R. This part maintains identical electrical and mechanical specifications while offering active product status and updated compliance certifications.

Similar Substitutes: The Littelfuse Inc. parts 0325.500HXP, 0325.500MXP, and 0325012.MXDP are listed as similar alternatives. However, these parts deviate from the primary equivalency criteria in current rating and/or voltage specifications and are classified as similar rather than parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: BK/MDA-V-12-R

The BK/MDA-V-12-R is the recommended direct replacement for the obsolete MDA-V-12-R. This part is manufactured by Eaton - Electronics Division and maintains complete parametric equivalency across all critical electrical and mechanical specifications. The BK/MDA-V-12-R carries active product status and holds identical approval certifications (CE, CSA, UL). The bulk packaging format does not affect functional performance in through-hole applications.

Alternative Selection: 0325012.MXDP

The Littelfuse Inc. part 0325012.MXDP provides a similar alternative with matching current rating (12 A), AC voltage rating (250 V), package format (3AB, 3AG), and response time (Slow Blow). This part is manufactured by an established supplier with active product status and equivalent approval certifications. However, the 0325012.MXDP includes a specified DC voltage rating (60 V) and exhibits different electrical characteristics (melting I²t of 445 versus 125.18, breaking capacity of 400 A AC versus 750 A, and DC cold resistance of 0.0011 Ohms versus 0.00725 Ohms). Selection of this alternative requires confirmation that the application does not depend on the specific electrical performance parameters of the original part.

Frequently Asked Questions (FAQ)

Q: Can BK/MDA-V-12-R be used as a direct replacement for MDA-V-12-R?

A: Yes. The BK/MDA-V-12-R is a parametric equivalent with identical current rating (12 A), AC voltage rating (250 V), package format (3AB, 3AG, 1/4" x 1-1/4"), response time (Slow Blow), and approval certifications (CE, CSA, UL). The only difference is product status (Active versus Obsolete) and packaging format (Bulk versus standard). Both parts are manufactured by Eaton - Electronics Division.

Q: What is the difference between the MDA-V-12-R and 0325012.MXDP?

A: Both parts share the same current rating (12 A), AC voltage rating (250 V), package format (3AB, 3AG), response time (Slow Blow), and approval certifications. The 0325012.MXDP differs in the following specifications: manufacturer (Littelfuse Inc. versus Eaton), DC voltage rating (60 V specified versus not specified), breaking capacity (400 A AC, 500 A DC versus 750 A), melting I²t (445 versus 125.18), and DC cold resistance (0.0011 Ohms versus 0.00725 Ohms). These differences indicate different thermal and electrical performance characteristics.

Q: Are the 0325.500HXP and 0325.500MXP suitable replacements?

A: The 0325.500HXP and 0325.500MXP are not suitable direct replacements. Both parts have a current rating of 500 mA, which differs significantly from the 12 A rating of the MDA-V-12-R. While they share the same AC voltage rating (250 V), package format (3AB, 3AG), response time (Slow Blow), and approval certifications, the current rating difference makes them unsuitable for applications requiring 12 A protection.

Q: What does "Slow Blow" response time mean?

A: Slow Blow response time indicates that the fuse is designed to tolerate temporary current surges without opening. The fuse will only open when sustained overcurrent conditions exceed the rated current. This characteristic is determined by the melting I²t parameter and is essential for applications with inrush currents or temporary load spikes.

Q: Does the bulk packaging of BK/MDA-V-12-R affect its performance?

A: No. Bulk packaging refers only to the quantity and presentation format of the parts during distribution and storage. The electrical and mechanical performance of the BK/MDA-V-12-R is identical to the MDA-V-12-R. Bulk packaging does not affect the fuse's function in the circuit.

Q: What approval certifications are required for this fuse?

A: The MDA-V-12-R and its equivalents carry CE, CSA, and UL approval certifications. These certifications confirm compliance with safety standards for electrical components in the specified voltage and current ranges.