Equivalent & Substitute Parts for GMC-7-R

Part Overview

The GMC-7-R is a 7 A, 125 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for use in applications requiring medium-blow response characteristics with a 5mm x 20mm form factor. The component is classified as Active product status and requires a dedicated fuse holder for installation. Alternative equivalent parts are available from the same manufacturer and qualified cross-manufacturer sources to support procurement flexibility and supply chain continuity.

Substiute Parts

GMC-7-R

Eaton - Electronics DivisionIn Stock: 951GMC-7-R Datasheet

Current PartRFQ

BK/GMC-7-R

Eaton - Electronics DivisionIn Stock: 1982BK/GMC-7-R Datasheet

DirectRFQ

0233007.MXP

Littelfuse Inc.In Stock: 18790233007.MXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GMC-7-R is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 7 A
• Voltage Rating - AC: 125 V
• Fuse Type: Cartridge, Glass
• Package / Case: 5mm x 20mm
• Mounting Type: Requires Holder
• Response Time: Medium Blow

Acceptable Variation Parameters:

• Breaking Capacity @ Rated Voltage: Substitute must equal or exceed the main part specification (200 A minimum)
• Melting I²t: Substitute value must fall within acceptable tolerance range of the main part (150 ± tolerance)
• DC Cold Resistance: Minor variations acceptable within engineering tolerance
• Approval Agencies: Substitute must maintain UL certification at minimum; additional certifications acceptable
• Operating Temperature Range: Substitute may have extended or equivalent range
• RoHS Status: Substitute must maintain ROHS3 Compliant status

Substitutes identified in this reference are grouped as Direct Equivalent (identical electrical and mechanical specifications) and Similar Equivalent (matching critical parameters with enhanced or equivalent performance characteristics).

Parameter Comparison

Engineering Selection Recommendations

BK/GMC-7-R (Eaton - Electronics Division):

The BK/GMC-7-R is a direct equivalent to the GMC-7-R, manufactured by the same supplier. All electrical and mechanical parameters are identical, including current rating, voltage rating, breaking capacity, melting I²t, and DC cold resistance. Both parts maintain MITI and UL certifications and ROHS3 compliance. This substitute is suitable for direct replacement in all applications where the GMC-7-R is specified. Inventory availability is higher for this variant (1951 Pcs vs. 877 Pcs for the main part).

0233007.MXP (Littelfuse Inc.):

The 0233007.MXP is a qualified cross-manufacturer substitute from Littelfuse Inc. It matches all critical electrical parameters (7 A, 125 V AC, medium-blow response) and mechanical specifications (5mm x 20mm cartridge form factor). The breaking capacity of 10 kA exceeds the main part specification of 200 A, providing enhanced fault protection capability. The melting I²t value of 157.31 is within acceptable tolerance of the main part specification (150). DC cold resistance is 0.0137 Ohms, a minor variation from the main part's 0.012 Ohms. This substitute carries expanded certifications (CE, PSE, UL) and an extended operating temperature range (-55°C ~ 125°C). The 0233007.MXP is suitable for applications requiring enhanced breaking capacity or extended temperature performance while maintaining functional equivalence.

Both substitutes are Active product status components with current manufacturing support and supply availability.

Frequently Asked Questions (FAQ)

Q: Can the BK/GMC-7-R be used as a direct replacement for the GMC-7-R?

A: Yes. The BK/GMC-7-R is manufactured by Eaton - Electronics Division and shares identical electrical and mechanical specifications with the GMC-7-R, including current rating (7 A), voltage rating (125 V AC), response time (medium blow), package dimensions (5mm x 20mm), breaking capacity (200 A), and melting I²t (150). Both parts carry MITI and UL certifications and maintain ROHS3 compliance. Direct substitution is supported.

Q: What are the key differences between the GMC-7-R and the 0233007.MXP?

A: The primary differences are manufacturer (Eaton vs. Littelfuse), breaking capacity (200 A vs. 10 kA), melting I²t (150 vs. 157.31), DC cold resistance (0.012 Ohms vs. 0.0137 Ohms), certifications (MITI/UL vs. CE/PSE/UL), and operating temperature range (not specified vs. -55°C ~ 125°C). All critical functional parameters—current rating, voltage rating, response time, and package dimensions—are identical.

Q: Is the 0233007.MXP suitable for all applications where the GMC-7-R is used?

A: The 0233007.MXP is functionally equivalent for applications requiring 7 A, 125 V AC protection with medium-blow response in a 5mm x 20mm cartridge form factor. The higher breaking capacity (10 kA) and extended operating temperature range provide enhanced performance margins. Compatibility depends on the specific application requirements and any design specifications that reference the original part number or manufacturer.

Q: What is the significance of the breaking capacity difference between the GMC-7-R (200 A) and the 0233007.MXP (10 kA)?

A: Breaking capacity defines the maximum fault current the fuse can safely interrupt without rupturing or creating a hazard. The 0233007.MXP's 10 kA breaking capacity exceeds the GMC-7-R's 200 A specification, indicating enhanced capability to handle higher fault currents. This makes the 0233007.MXP suitable for applications with higher available fault current levels while maintaining the same nominal protection threshold (7 A).

Q: Are all three parts compatible with the same fuse holder?

A: Yes. All three parts—GMC-7-R, BK/GMC-7-R, and 0233007.MXP—share identical package dimensions (5mm x 20mm) and require a holder for installation. They are mechanically interchangeable in any standard 5mm x 20mm fuse holder.

Q: What certifications should I verify for my application?

A: The GMC-7-R and BK/GMC-7-R carry MITI and UL certifications. The 0233007.MXP carries CE, PSE, and UL certifications. Verify that the certifications required by your application and regional standards are present on the selected part. All three parts maintain ROHS3 compliance.

Q: Does the operating temperature range affect substitution decisions?

A: The operating temperature range is specified for the 0233007.MXP (-55°C ~ 125°C) but not provided for the GMC-7-R or BK/GMC-7-R. If your application operates outside standard ambient conditions, the 0233007.MXP's extended temperature specification may provide additional assurance. For standard indoor applications, this parameter is not a limiting factor for substitution.