BK/MDA-V-3/4-R Ceramic Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The BK/MDA-V-3/4-R is a 750 mA ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 250 V AC operation with slow-blow response characteristics. This fuse is designed for through-hole mounting in 3AB, 3AG package format with dimensions of 1/4" x 1-1/4" (Axial). The product maintains active status with 1138 pieces in current inventory.

Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications align with the main part specifications, enabling direct functional replacement in circuit protection applications.

Substiute Parts

BK/MDA-V-3/4-R

Eaton - Electronics DivisionIn Stock: 1212BK/MDA-V-3/4-R Datasheet

Current PartRFQ

0325.750HXP

Littelfuse Inc.In Stock: 13200325.750HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/MDA-V-3/4-R is determined by the following critical parameters:

Primary Matching Criteria:

• Current Rating: 750 mA (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)

Compliance Criteria:

• Approval Agencies: CE, CSA, UL certifications required
• RoHS Status: ROHS3 Compliant

The substitute part 0325.750HXP from Littelfuse Inc. satisfies all primary matching criteria and maintains equivalent compliance certifications, establishing functional equivalence for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/MDA-V-3/4-R and 0325.750HXP maintain active product status with full compliance to CE, CSA, and UL approval agencies. Both components are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and deployment.

The 0325.750HXP substitute part provides functional equivalence across all specified electrical and mechanical parameters for 250 V AC circuit protection applications requiring 750 mA slow-blow response. Selection between these parts may be based on inventory availability, lead time, or established supplier relationships, as both components satisfy identical technical requirements for through-hole ceramic cartridge fuse applications.

Frequently Asked Questions (FAQ)

Q: Can the 0325.750HXP directly replace the BK/MDA-V-3/4-R in existing circuit designs?

A: Yes. Both fuses share identical current ratings (750 mA), AC voltage ratings (250 V), fuse type (ceramic cartridge), response time (slow blow), and package dimensions (3AB, 3AG, 1/4" x 1-1/4" axial). Both are approved by CE, CSA, and UL agencies and are ROHS3 compliant.

Q: What are the dimensional tolerances between these two fuses?

A: The BK/MDA-V-3/4-R measures 0.266" diameter x 1.292" length. The 0325.750HXP measures 0.275" diameter x 1.288" length. Both conform to the 3AB, 3AG package standard and are mechanically compatible with through-hole mounting applications.

Q: Are there differences in DC voltage ratings between these parts?

A: The BK/MDA-V-3/4-R is specified for 250 V AC operation. The 0325.750HXP is rated for 250 V AC and 125 V DC. For AC-only applications, both parts are functionally equivalent.

Q: What is the significance of the melting I²t values?

A: The BK/MDA-V-3/4-R has a melting I²t of 0.42, while the 0325.750HXP has a melting I²t of 7. This parameter reflects thermal energy absorption characteristics but does not affect substitution eligibility when current and voltage ratings are identical.

Q: Do both fuses carry the same regulatory certifications?

A: Yes. Both the BK/MDA-V-3/4-R and 0325.750HXP carry CE, CSA, and UL approvals and are ROHS3 compliant, meeting equivalent regulatory and environmental standards.