BK/GMA-V-63-R Equivalent & Substitute Parts

Part Overview

The BK/GMA-V-63-R is a 63 mA, 250 V AC/DC fast-blow glass cartridge fuse with a 5mm x 20mm axial through-hole package. Manufactured by Eaton - Electronics Division, this component is classified as Active product status. The GMA series fuse is designed for circuit protection applications requiring fast response characteristics and compact form factors. Substitute parts become necessary when primary inventory is unavailable, when alternative series offer improved availability, or when design flexibility permits selection from qualified equivalent components within the same electrical and mechanical parameter set.

Substiute Parts

BK/GMA-V-63-R

Eaton - Electronics DivisionIn Stock: 790BK/GMA-V-63-R Datasheet

Current PartRFQ

BK/S500-V-63-R

Eaton - Electronics DivisionIn Stock: 1163BK/S500-V-63-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/GMA-V-63-R with the BK/S500-V-63-R is permissible based on the following matched electrical and mechanical parameters:

Critical Matching Parameters:

• Current Rating: 63 mA (identical)
• Voltage Rating (AC): 250 V (identical)
• Fuse Type: Cartridge, Glass (identical)
• Response Time: Fast Blow (identical)
• Package / Case: 5mm x 20mm (Axial) (identical)
• Mounting Type: Through Hole (identical)
• Breaking Capacity @ Rated Voltage: 35 A (identical)
• Physical Dimensions: 0.218" Dia x 0.831" L / 5.54mm x 21.10mm (identical)
• RoHS Status: RoHS Compliant (identical)

Both components are manufactured by Eaton - Electronics Division and maintain Active product status. The substitution is valid for applications where the electrical protection characteristics and physical form factor are the primary selection criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/GMA-V-63-R and BK/S500-V-63-R are qualified substitutes for applications requiring 63 mA, 250 V AC/DC fast-blow glass cartridge fuses in 5mm x 20mm through-hole configurations. Selection between these components should be based on:

Product Availability: The BK/S500-V-63-R currently maintains higher inventory (1082 Pcs) compared to the BK/GMA-V-63-R (742 Pcs), making it suitable for high-volume procurement scenarios.

Compliance Requirements: The BK/GMA-V-63-R carries CSA, PSE, and UL approvals. Applications requiring specific regulatory certifications should verify that the BK/S500-V-63-R meets equivalent compliance standards for the target market.

Electrical Characteristics: While both components share identical current, voltage, and breaking capacity ratings, the Melting I²t and DC Cold Resistance values differ. These parameters do not affect substitutability for standard circuit protection applications but should be reviewed for specialized thermal or resistance-sensitive designs.

Both components are RoHS Compliant and maintain Active product status, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the BK/S500-V-63-R directly replace the BK/GMA-V-63-R in existing circuit designs?

A: Yes. Both components share identical electrical ratings (63 mA, 250 V AC/DC), response characteristics (Fast Blow), and physical dimensions (5mm x 20mm through-hole). Direct substitution is permissible from a functional and mechanical standpoint.

Q: What is the difference between the GMA and S500 series?

A: The GMA and S500 are distinct product series within Eaton's fuse portfolio. Both series offer 63 mA, 250 V fast-blow glass cartridge fuses in identical 5mm x 20mm packages. Series selection is typically driven by availability, compliance certifications, or design preference rather than electrical performance differences.

Q: Are there compliance differences between these two parts?

A: The BK/GMA-V-63-R is certified by CSA, PSE, and UL. The BK/S500-V-63-R approval agencies are not specified in the provided data. Applications requiring specific regulatory certifications should confirm compliance status before substitution.

Q: Do the different Melting I²t values affect substitutability?

A: The Melting I²t parameter describes thermal energy absorption characteristics. Both components are rated for identical current (63 mA) and voltage (250 V) with the same breaking capacity (35 A). The difference in Melting I²t values does not prevent substitution for standard circuit protection applications but should be evaluated for specialized thermal management scenarios.

Q: What is the significance of the DC Cold Resistance difference?

A: DC Cold Resistance values (15.75 Ohms for GMA vs. 125 Ohms for S500) reflect internal fuse element design differences. Both components function identically for AC/DC circuit protection at the specified 63 mA rating. This parameter is relevant only for applications with specific resistance requirements or specialized measurement protocols.

Q: Can I use either part interchangeably in new designs?

A: Yes. Both the BK/GMA-V-63-R and BK/S500-V-63-R meet identical electrical and mechanical specifications for 63 mA, 250 V fast-blow glass cartridge fuses. New designs may select either component based on availability, cost, or compliance requirements.

Q: What packaging options are available?

A: Both components are supplied in Bulk packaging. The 5mm x 20mm axial through-hole form factor is standard for both parts, ensuring compatibility with existing PCB footprints and fuse holders.