BK/MDQ-V-2 Equivalent & Substitute Parts

Part Overview

The BK/MDQ-V-2 is a 2 A, 250 V AC/DC slow-blow glass cartridge fuse with 3AB/3AG package configuration and through-hole mounting. Manufactured by Eaton - Electronics Division, this component is classified as Active product status. The fuse is designed for circuit protection applications requiring slow-blow response characteristics and is approved by CSA and UL agencies.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same functional category, enabling direct replacement in applications where the original part number becomes unavailable or inventory constraints require alternative sourcing.

Substiute Parts

BK/MDQ-V-2

Eaton - Electronics DivisionIn Stock: 759BK/MDQ-V-2 Datasheet

Current PartRFQ

BK/MDL-V-2-R

Eaton - Electronics DivisionIn Stock: 1085BK/MDL-V-2-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/MDQ-V-2 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Current Rating: 2 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 100 A (exact match required)

Mechanical Parameters:

• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Size / Dimension: 0.266" Dia x 1.292" L (6.76mm x 32.82mm) (exact match required)

The substitute part BK/MDL-V-2-R meets all critical electrical and mechanical parameters, confirming direct substitutability in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/MDQ-V-2 and BK/MDL-V-2-R are Active product status components manufactured by Eaton - Electronics Division. Both parts satisfy CSA and UL approval requirements for circuit protection applications.

The BK/MDL-V-2-R substitute provides additional compliance advantages: it carries CE approval in addition to CSA and UL certifications, and achieves ROHS3 compliance status, whereas the main part BK/MDQ-V-2 is RoHS non-compliant. The DC cold resistance differential (0.116 Ohms versus 0.1325 Ohms) remains within acceptable tolerance for slow-blow cartridge fuse applications at the specified 2 A rating.

Selection between these parts should be based on regulatory compliance requirements and inventory availability. The BK/MDL-V-2-R is suitable for applications requiring enhanced environmental and regulatory compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can BK/MDL-V-2-R replace BK/MDQ-V-2 in existing circuit designs?

A: Yes. Both parts maintain identical electrical ratings (2 A, 250 V AC), response time (Slow Blow), breaking capacity (100 A), and mechanical package specifications (3AB/3AG, 1/4" x 1-1/4" Axial, Through Hole mounting). Direct substitution is supported without circuit modification.

Q: What is the significance of the DC cold resistance difference between these parts?

A: The DC cold resistance values (0.1325 Ohms for BK/MDQ-V-2 and 0.116 Ohms for BK/MDL-V-2-R) represent minor manufacturing variations within the slow-blow cartridge fuse category. Both values are acceptable for the specified 2 A current rating and do not affect circuit protection performance.

Q: Are there compliance differences between these substitute parts?

A: The BK/MDL-V-2-R carries CE, CSA, and UL approvals and is ROHS3 compliant. The BK/MDQ-V-2 carries CSA and UL approvals and is RoHS non-compliant. Applications requiring environmental compliance or CE marking should specify the BK/MDL-V-2-R substitute.

Q: Do these parts have identical physical dimensions?

A: Yes. Both parts share identical package dimensions: 0.266" diameter x 1.292" length (6.76mm x 32.82mm). Physical interchangeability is confirmed for through-hole mounting applications.

Q: What inventory status should influence part selection?

A: The BK/MDQ-V-2 main part has 713 pieces in stock. The BK/MDL-V-2-R substitute has 1050 pieces in stock. Availability may influence sourcing decisions based on project timelines and supply chain requirements.