BK/MDA-3-2/10-R Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The BK/MDA-3-2/10-R is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated at 3.2 A, 250 V AC/DC with slow-blow response characteristics. This fuse is designed for applications requiring overcurrent protection in AC and DC circuits and operates within the 3AB and 3AG holder standards with dimensions of 1/4" x 1-1/4" (6.35mm x 31.75mm). The part maintains active product status with 886 units in current inventory. Equivalent substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across manufacturing environments where identical electrical and mechanical parameters are required.

Substiute Parts

BK/MDA-3-2/10-R

Eaton - Electronics DivisionIn Stock: 967BK/MDA-3-2/10-R Datasheet

Current PartRFQ

032603.2HXP

Littelfuse Inc.In Stock: 1171032603.2HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/MDA-3-2/10-R is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 3.2 A
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Ceramic
• Response Time: Slow Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
• Physical Dimensions: 0.250" Dia x 1.250" L (6.35mm x 31.75mm)
• Mounting Type: Requires Holder

The substitute part 032603.2HXP manufactured by Littelfuse Inc. meets all mandatory matching parameters, confirming direct electrical and mechanical compatibility. Both parts are ROHS3 compliant and maintain active product status, supporting long-term availability and regulatory compliance in production environments.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/MDA-3-2/10-R and 032603.2HXP are suitable for direct substitution in applications requiring 3.2 A, 250 V AC/DC ceramic cartridge fuses with slow-blow characteristics. Selection between these parts may be based on:

Procurement Considerations:

• Inventory availability: BK/MDA-3-2/10-R (886 units) vs. 032603.2HXP (1062 units)
• Supply chain lead times and regional distributor networks
• Existing qualification and design documentation requirements

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status. The 032603.2HXP carries additional approval certifications (K-MARK, PSE) beyond the BK/MDA-3-2/10-R, which may be advantageous for applications targeting Asian markets or requiring expanded regulatory coverage.

Operational Parameters: Both parts are rated for identical electrical performance. The 032603.2HXP specifies an operating temperature range of -55°C to 125°C, providing defined thermal operating limits for design verification purposes.

Frequently Asked Questions (FAQ)

Q: Can the 032603.2HXP directly replace the BK/MDA-3-2/10-R in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: 3.2 A current rating, 250 V AC voltage rating, ceramic cartridge construction, slow-blow response, and 3AB/3AG holder compatibility with identical 1/4" x 1-1/4" dimensions. No circuit modifications or holder changes are required.

Q: Are there differences in fuse response characteristics between these parts?

A: Both parts are specified as slow-blow fuses with identical current and voltage ratings. The BK/MDA-3-2/10-R specifies a melting I²t of 17.5, while the 032603.2HXP specifies 214. These values represent different measurement methodologies or test conditions provided by each manufacturer and do not affect substitution compatibility for applications designed around the 3.2 A slow-blow specification.

Q: What holder types are compatible with these fuses?

A: Both fuses require a 3AB or 3AG holder. The 1/4" x 1-1/4" (6.35mm x 31.75mm) cartridge dimensions are standard for these holder types. Verify that existing holder equipment is rated for 3AB or 3AG before installation.

Q: Are there packaging or MSL considerations for storage?

A: Both parts are supplied in bulk packaging. The BK/MDA-3-2/10-R does not specify MSL requirements (Not Applicable). The 032603.2HXP specifies MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which certifications apply to both parts?

A: Both parts carry CE, CSA, and UL certifications. The 032603.2HXP additionally carries K-MARK and PSE certifications. All certifications are relevant to the 250 V AC/DC, 3.2 A ceramic cartridge fuse category.