GMC-63-R Equivalent & Substitute Parts

Part Overview

The GMC-63-R is a 63 mA, 250 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for applications requiring medium-blow response characteristics and operates within a 5mm x 20mm form factor. The part is active in production status and carries multiple international approvals including CSA, KC-MARK, and UL certification. Substitute parts are identified when equivalent electrical and mechanical parameters are required for circuit protection applications where the original part number is unavailable or when alternative sourcing is necessary.

Substiute Parts

GMC-63-R

Eaton - Electronics DivisionIn Stock: 796GMC-63-R Datasheet

Current PartRFQ

BK/GMC-63-R

Eaton - Electronics DivisionIn Stock: 1154BK/GMC-63-R Datasheet

DirectRFQ

0218.063HXP

Littelfuse Inc.In Stock: 10580218.063HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMC-63-R are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters:

• Current Rating: 63 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Breaking Capacity @ Rated Voltage: 35 A (exact match required)

Mechanical Parameters:

• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Mounting Type: Requires Holder (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (required)

Substitutes are grouped into two categories: Direct Manufacturer Equivalents and Similar Manufacturer Parts. Direct equivalents maintain identical response time characteristics, while similar parts may differ in response time classification while maintaining all other critical electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

BK/GMC-63-R (Eaton - Electronics Division): This part is a direct manufacturer equivalent to the GMC-63-R. Both parts are manufactured by Eaton - Electronics Division and maintain identical electrical characteristics, response time classification (Medium Blow), and mechanical specifications. The BK/GMC-63-R carries the same approval agencies (CSA, KC-MARK, UL) and RoHS3 compliance status. This substitute is suitable for direct replacement in all applications where the GMC-63-R is specified.

0218.063HXP (Littelfuse Inc.): This part matches all critical electrical and mechanical parameters with the GMC-63-R, including current rating, voltage rating, breaking capacity, and physical dimensions. However, the response time classification differs: the 0218.063HXP is rated as Slow Blow compared to the GMC-63-R's Medium Blow response. Additionally, the Littelfuse part exhibits higher DC cold resistance (17.65 Ohms versus 10.35 Ohms) and higher melting I²t (0.0117 versus 0.0027). The 0218.063HXP carries expanded approval certifications including CCC, CE, K-MARK, SEMKO, and VDE, and specifies an operating temperature range of -55°C to 125°C. This substitute is applicable in applications where slow-blow response characteristics are acceptable and the expanded temperature operating range is beneficial.

Frequently Asked Questions (FAQ)

Q: Can the BK/GMC-63-R be used as a direct replacement for the GMC-63-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and maintain identical current rating (63 mA), voltage rating (250 V), response time (Medium Blow), package dimensions (5mm x 20mm), and approval certifications. The BK/GMC-63-R is a direct equivalent substitute.

Q: What is the primary difference between the GMC-63-R and the 0218.063HXP?

A: The primary difference is response time classification. The GMC-63-R is rated Medium Blow, while the 0218.063HXP is rated Slow Blow. Additionally, the 0218.063HXP has higher DC cold resistance (17.65 Ohms versus 10.35 Ohms) and higher melting I²t (0.0117 versus 0.0027). Both parts share identical current rating, voltage rating, breaking capacity, and physical dimensions.

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

A: Yes. All listed substitute parts maintain the identical 5mm x 20mm package dimensions and cartridge glass fuse type, requiring the same holder configuration as the GMC-63-R.

Q: Does the 0218.063HXP have additional certifications compared to the GMC-63-R?

A: Yes. The 0218.063HXP carries certifications from CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE, compared to the GMC-63-R's CSA, KC-MARK, and UL certifications. The 0218.063HXP also specifies an operating temperature range of -55°C to 125°C.

Q: Can the 0218.063HXP be used in applications designed for the GMC-63-R?

A: The 0218.063HXP can be used in applications where the slow-blow response time is acceptable. Applications specifically requiring medium-blow response characteristics should use the GMC-63-R or BK/GMC-63-R. The difference in response time affects circuit protection behavior during transient overcurrent conditions.

Q: What does the melting I²t value indicate?

A: The melting I²t value represents the thermal energy required to melt the fuse element. The GMC-63-R and BK/GMC-63-R have a melting I²t of 0.0027, while the 0218.063HXP has a melting I²t of 0.0117. This difference correlates with the response time classification: lower I²t values indicate faster response (medium blow), while higher values indicate slower response (slow blow).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The GMC-63-R, BK/GMC-63-R, and 0218.063HXP are all ROHS3 compliant.