BK/MDA-V-1/8-R Equivalent & Substitute Parts

Part Overview

The BK/MDA-V-1/8-R is a 125 mA, 250 V AC/DC 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 functionally equivalent substitutes necessary for ongoing maintenance, repair, and design continuity in applications requiring this specific electrical protection.

Substiute Parts

BK/MDA-V-1/8-R

Eaton - Electronics DivisionIn Stock: 779BK/MDA-V-1/8-R Datasheet

Current PartRFQ

0325.125HXP

Littelfuse Inc.In Stock: 8920325.125HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/MDA-V-1/8-R is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Current Rating: 125 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Response Time: Slow Blow (exact match required)

Mechanical Parameters:

• Fuse Type: Cartridge, Ceramic (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 Parameters:

• RoHS3 Compliance (required for environmental standards)

The substitute part 0325.125HXP from Littelfuse Inc. meets all critical electrical and mechanical parameters, enabling direct functional replacement in applications currently using the BK/MDA-V-1/8-R.

Parameter Comparison

Engineering Selection Recommendations

The 0325.125HXP from Littelfuse Inc. is the qualified substitute for the obsolete BK/MDA-V-1/8-R. Selection is based on the following engineering criteria:

Electrical Equivalence: Both parts share identical current rating (125 mA), voltage rating (250 V AC), and response time (Slow Blow), ensuring equivalent circuit protection performance.

Mechanical Compatibility: Both parts conform to the 3AB, 3AG package standard with 1/4" x 1-1/4" axial dimensions. Physical dimensions are within acceptable tolerance for through-hole mounting applications.

Compliance Status: The 0325.125HXP maintains ROHS3 compliance and holds CE approval, meeting current regulatory requirements. The substitute part is in active production status, ensuring long-term availability and supply chain continuity.

Availability: The 0325.125HXP is currently in stock (848 Pcs), providing immediate procurement capability for replacement and new design applications.

Frequently Asked Questions (FAQ)

Q: Can the 0325.125HXP directly replace the BK/MDA-V-1/8-R in existing applications?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: 125 mA current rating, 250 V AC voltage rating, slow-blow response, ceramic cartridge construction, and 3AB, 3AG package format. Physical dimensions are within acceptable tolerance for through-hole mounting.

Q: What is the primary reason for substitution?

A: The BK/MDA-V-1/8-R is classified as obsolete. The 0325.125HXP is an active product from Littelfuse Inc., ensuring continued availability and supply chain reliability.

Q: Are there any dimensional differences between these parts?

A: Minor dimensional variations exist. The BK/MDA-V-1/8-R measures 0.266" Dia x 1.292" L, while the 0325.125HXP measures 0.275" Dia x 1.288" L. These differences are within standard tolerance for 3AB, 3AG package specifications and do not affect through-hole mounting compatibility.

Q: What certifications does the substitute part hold?

A: The 0325.125HXP holds CE approval and is ROHS3 compliant. It is also REACH unaffected, meeting current environmental and safety standards.

Q: Is the substitute part suitable for both AC and DC applications?

A: The 0325.125HXP is rated for 250 V AC. The original part specification indicates AC/DC capability; however, only the AC rating is provided in the substitute part data. Verify DC application requirements against the 0325.125HXP datasheet for specific DC voltage and current parameters.