GMT-5A Equivalent & Substitute Parts Reference

Part Overview

The GMT-5A is an indicating fuse manufactured by Eaton - Bussmann Electrical Division, rated for 5A at 125 VAC / 60 VDC with fast-blow response characteristics. This component is designed for telecom applications and requires an external holder for installation. The part maintains active product status with 754 units currently in stock. Identifying equivalent substitute parts ensures supply chain continuity and supports procurement flexibility when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

GMT-5A

Eaton - Bussmann Electrical DivisionIn Stock: 774GMT-5A Datasheet

Current PartRFQ

BK/GMT-5A

Eaton - Bussmann Electrical DivisionIn Stock: 2479BK/GMT-5A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMT-5A are identified based on electrical and mechanical parameter equivalence. The critical parameters determining substitution eligibility are:

• Current Rating: 5A (exact match required)
• Voltage Rating - AC: 125 VAC (exact match required)
• Voltage Rating - DC: 60 VDC (exact match required)
• Response Time: Fast Blow (exact match required)
• Fuse Type: Indicating Fuse (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 300A AC, 450A DC (exact match required)
• Physical Dimensions: 0.688" L x 0.127" W x 0.810" H (exact match required)

The BK/GMT-5A meets all electrical and mechanical parameter requirements for direct substitution with the GMT-5A.

Parameter Comparison

Engineering Selection Recommendations

Both GMT-5A and BK/GMT-5A are active products manufactured by Eaton - Bussmann Electrical Division with identical electrical specifications and physical dimensions. Both parts carry UR approval and maintain compliance with export control classifications (EAR99). The BK/GMT-5A variant demonstrates enhanced RoHS compliance status (ROHS3) and offers greater inventory availability (2377 units versus 754 units). Selection between these parts should be based on procurement requirements, inventory availability, and compliance specifications applicable to the end application. Both parts are electrically and mechanically interchangeable for telecom applications requiring 5A indicating fuses with fast-blow response at 125 VAC / 60 VDC ratings.

Frequently Asked Questions (FAQ)

Q: Can BK/GMT-5A be used as a direct replacement for GMT-5A?

A: Yes. Both parts share identical electrical ratings (5A, 125 VAC, 60 VDC), response characteristics (fast-blow), fuse type (indicating), mounting requirements (requires holder), breaking capacity (300A AC, 450A DC), and physical dimensions (0.688" L x 0.127" W x 0.810" H). Both are manufactured by Eaton - Bussmann Electrical Division and carry UR approval.

Q: What are the key electrical parameters that must match for substitution?

A: Current rating (5A), AC voltage rating (125 VAC), DC voltage rating (60 VDC), response time (fast-blow), and breaking capacity (300A AC, 450A DC) must all match exactly. These parameters determine circuit protection performance and safety compliance.

Q: Are there physical dimension differences between GMT-5A and BK/GMT-5A?

A: No. Both parts have identical dimensions of 0.688" L x 0.127" W x 0.810" H (17.48mm x 3.23mm x 20.57mm) and the same alarm indicator package type, ensuring compatibility with existing holders and mounting configurations.

Q: What is the difference in RoHS compliance between these parts?

A: GMT-5A carries RoHS Compliant status, while BK/GMT-5A carries ROHS3 Compliant status. Both meet RoHS requirements; ROHS3 represents an updated compliance designation. Selection depends on specific regulatory requirements for the end application.

Q: Which part should be selected based on availability?

A: BK/GMT-5A currently has higher inventory availability (2377 units) compared to GMT-5A (754 units). For applications without specific part number requirements, BK/GMT-5A may offer better supply chain continuity.

Q: Do both parts require the same holder type?

A: Yes. Both GMT-5A and BK/GMT-5A are indicating fuses that require an external holder for installation. They share identical mounting type specifications and physical dimensions, ensuring compatibility with the same holder configurations.