BK/GMC-V-6.3-R Equivalent & Substitute Parts

Part Overview

The BK/GMC-V-6.3-R is a 6.3 A, 125 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This through-hole mounted fuse is designed for general-purpose circuit protection in applications requiring medium-blow response characteristics. The component is actively produced and maintains full compliance with RoHS3 standards.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory approvals are maintained across alternative manufacturers. This reference enables procurement flexibility and supply chain continuity.

Substiute Parts

BK/GMC-V-6.3-R

Eaton - Electronics DivisionIn Stock: 775BK/GMC-V-6.3-R Datasheet

Current PartRFQ

023306.3MXEP

Littelfuse Inc.In Stock: 2216023306.3MXEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Mandatory Match Criteria:

• Current Rating: 6.3 A (exact)
• Voltage Rating (AC): 125 V (minimum)
• Fuse Type: Cartridge, Glass
• Package / Case: 5mm x 20mm (Axial)
• Response Time: Medium Blow
• Breaking Capacity: 10 kA @ Rated Voltage
• Mounting Type: Through Hole

Acceptable Variation Ranges:

• Physical dimensions: Minor tolerance variations within standard fuse holder specifications
• DC Cold Resistance: Variations within normal manufacturing tolerances
• Melting I²t: Variations acceptable if response time classification remains consistent
• Operating Temperature: Substitute may have defined range; original has unspecified range
• Approval Agencies: Substitute must maintain equivalent regulatory coverage for target application

The substitute part 023306.3MXEP (Littelfuse Inc., Series 233) meets all mandatory criteria and maintains functional equivalence for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: BK/GMC-V-6.3-R (Eaton - Electronics Division)

Selection basis: Active product status with established supply chain. Maintains full compliance with CSA, KC-MARK, MITI, and UL certifications. RoHS3 compliant. Current inventory: 696 units.

Substitute Part: 023306.3MXEP (Littelfuse Inc., Series 233)

Selection basis: Functionally equivalent across all critical electrical and mechanical parameters. Active product status. Maintains equivalent regulatory approvals (CE, CSA, KC, PSE, UL) with expanded certification scope. RoHS3 compliant. Larger available inventory: 2,137 units. Defined operating temperature range (-55°C ~ 125°C) provides additional specification clarity.

Both parts are suitable for direct substitution in applications requiring 6.3 A, 125 V AC/DC circuit protection with medium-blow response in 5mm x 20mm through-hole fuse holders.

Frequently Asked Questions (FAQ)

Q: Can 023306.3MXEP replace BK/GMC-V-6.3-R in existing designs?

A: Yes. Both parts meet identical electrical specifications (6.3 A, 125 V, 10 kA breaking capacity, medium-blow response) and share the same 5mm x 20mm axial package. Physical dimension variations (0.218" vs. 0.228" diameter; 0.831" vs. 0.886" length) fall within standard fuse holder tolerances and do not affect mechanical compatibility.

Q: Are regulatory approvals equivalent between the two parts?

A: Both parts maintain UL and CSA certifications. The Littelfuse substitute adds CE, KC, and PSE approvals, providing broader market compliance. For applications requiring specific certifications (MITI, for example), verify that the substitute meets regional requirements before selection.

Q: What is the significance of the different Melting I²t values (110 vs. 151.905)?

A: Both parts are classified as medium-blow fuses and maintain the same response time category. The I²t variation reflects normal manufacturing differences between manufacturers while preserving the intended trip curve characteristics for the 6.3 A rating.

Q: Does the defined operating temperature range of the Littelfuse part affect substitution?

A: No. The Littelfuse part specifies -55°C ~ 125°C operation. The Eaton part does not specify an operating temperature range. The Littelfuse specification provides additional clarity for temperature-sensitive applications but does not restrict substitution in standard environments.

Q: Are there any DC voltage considerations for these fuses?

A: Both parts are rated for 125 V AC/DC operation. The DC cold resistance values (0.012 Ohms vs. 0.0166 Ohms) reflect normal manufacturing tolerances and do not affect DC circuit protection performance at the specified voltage rating.

Q: What packaging considerations apply to bulk procurement?

A: Both parts are supplied in bulk packaging. Verify packaging quantity and handling requirements with the supplier. No moisture sensitivity level (MSL) restrictions apply to either part.