GMA-1.5-R Equivalent & Substitute Parts

Part Overview

The GMA-1.5-R is a 1.5 A, 250 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This component is designed for circuit protection in applications requiring fast response to overcurrent conditions. The fuse operates in a 5mm x 20mm form factor and requires a compatible holder for installation. The part maintains Active product status with 935 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate equivalent functionality from alternative manufacturers.

Substiute Parts

GMA-1.5-R

Eaton - Electronics DivisionIn Stock: 997GMA-1.5-R Datasheet

Current PartRFQ

BK/GMA-1.5-R

Eaton - Electronics DivisionIn Stock: 2693BK/GMA-1.5-R Datasheet

DirectRFQ

FSC-1.5A

OptiFuseIn Stock: 6929FSC-1.5A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMA-1.5-R are classified based on strict equivalence of electrical and mechanical parameters. The substitution logic is determined by the following criteria:

Primary Equivalence Parameters:

• Current Rating: 1.5 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Breaking Capacity @ Rated Voltage: 100 A (exact match required)
• Mounting Type: Requires Holder (exact match required)

Compliance Parameters:

• RoHS Status: RoHS Compliant or ROHS3 Compliant (acceptable equivalence)
• Approval Agencies: UL certification required as minimum standard

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the GMA-1.5-R in applications where the specified parameters are required.

Parameter Comparison

Engineering Selection Recommendations

GMA-1.5-R (Primary Part): The GMA-1.5-R remains the primary selection when Eaton sourcing is preferred and inventory availability is confirmed. This part carries Active product status with CSA, PSE, and UL certifications. Current inventory of 935 units supports immediate procurement.

BK/GMA-1.5-R (Direct Manufacturer Substitute): The BK/GMA-1.5-R is a direct equivalent from Eaton - Electronics Division with identical electrical and mechanical specifications. This variant offers higher inventory availability (2605 units) and ROHS3 compliance status. Selection of this part is appropriate when Eaton sourcing continuity is required and enhanced RoHS compliance documentation is necessary. Both parts share the same series designation (GMA) and approval certifications.

FSC-1.5A (Parametric Equivalent): The FSC-1.5A from OptiFuse provides parametric equivalence across all critical electrical and mechanical parameters. This part carries cULus and UL 248 certifications, meeting UL standards required for fast-blow cartridge fuses. The FSC-1.5A offers the highest inventory availability (6860 units) and is suitable for applications where multi-source component qualification is established. Operating temperature range of -55°C to 90°C is specified for this part.

Selection between these three parts should be based on established supplier relationships, inventory requirements, and compliance documentation needs rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can FSC-1.5A from OptiFuse be used as a direct replacement for GMA-1.5-R?

A: Yes. The FSC-1.5A meets all critical electrical and mechanical parameters: 1.5 A current rating, 250 V AC voltage rating, fast-blow response, 5mm x 20mm package, and 100 A breaking capacity. Both parts are UL certified and RoHS compliant. Physical dimensions and holder compatibility are identical.

Q: What is the difference between GMA-1.5-R and BK/GMA-1.5-R?

A: Both parts are manufactured by Eaton - Electronics Division with identical electrical specifications, current ratings, voltage ratings, and physical dimensions. The primary difference is RoHS compliance status: GMA-1.5-R is RoHS Compliant, while BK/GMA-1.5-R is ROHS3 Compliant. Both carry the same approval certifications (CSA, PSE, UL).

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

A: Yes. All three parts share identical package specifications (5mm x 20mm) and mounting type (Requires Holder). They are mechanically interchangeable in any standard 5mm x 20mm fuse holder.

Q: What certifications are required for these fuses?

A: GMA-1.5-R and BK/GMA-1.5-R carry CSA, PSE, and UL certifications. FSC-1.5A carries cULus and UL 248 certifications. All parts meet UL standards for fast-blow cartridge fuses at 1.5 A, 250 V.

Q: Does the DC Cold Resistance difference between parts affect substitution?

A: DC Cold Resistance values are provided for reference (GMA-1.5-R: 0.09 Ohms; FSC-1.5A: 2.076 Ohms) but do not affect substitution eligibility. All parts meet the specified breaking capacity and response time requirements for the 1.5 A, 250 V fast-blow application.

Q: Can these fuses be used in both AC and DC applications?

A: The specifications indicate 250 V AC rating. Voltage ratings for DC applications are not provided in the technical parameters. Confirm DC voltage compatibility with application requirements before selection.