GMT-2A Equivalent & Substitute Parts Reference

Part Overview

The GMT-2A is an indicating fuse manufactured by Eaton - Bussmann Electrical Division, rated for 2A 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 is currently active in production and widely available in inventory, making it a standard component for circuit protection in low-voltage AC and DC systems.

Substitute parts are identified when they maintain identical electrical ratings, mechanical compatibility, and functional performance across all critical parameters. This ensures seamless integration into existing designs without circuit redesign or performance degradation.

Substiute Parts

GMT-2A

Eaton - Bussmann Electrical DivisionIn Stock: 957GMT-2A Datasheet

Current PartRFQ

BK/GMT-2A

Eaton - Bussmann Electrical DivisionIn Stock: 3885BK/GMT-2A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMT-2A are identified based on strict equivalence across the following critical parameters:

• Current Rating: 2A (exact match required)
• Voltage Ratings: 125 VAC and 60 VDC (both must match)
• Response Time: Fast Blow (functional characteristic must match)
• Fuse Type: Indicating Fuse (functional type must match)
• Mounting Type: Requires Holder (mechanical compatibility requirement)
• Breaking Capacity: 300A AC and 450A DC (performance specification must match)
• Physical Dimensions: 0.688" L x 0.127" W x 0.810" H (mechanical fit requirement)
• Approval Agency: UR certification (regulatory compliance requirement)

The substitute BK/GMT-2A meets all these criteria and is manufactured by the same supplier, ensuring functional and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both GMT-2A and BK/GMT-2A are active production components from Eaton - Bussmann Electrical Division with identical electrical and mechanical specifications. Selection between these parts should be based on availability and inventory status rather than technical performance, as they are functionally equivalent.

The BK/GMT-2A variant carries ROHS3 compliance designation, indicating compliance with the most current RoHS 3 directive requirements. Both parts maintain UR approval certification and are suitable for telecom applications requiring 2A circuit protection at 125 VAC / 60 VDC.

Frequently Asked Questions (FAQ)

Q: Can BK/GMT-2A be used as a direct replacement for GMT-2A?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: current rating, voltage ratings, response time, breaking capacity, physical dimensions, and approval certifications. They are interchangeable without circuit modification.

Q: What is the difference between GMT-2A and BK/GMT-2A?

A: The primary difference is the RoHS compliance designation. GMT-2A is RoHS Compliant, while BK/GMT-2A is ROHS3 Compliant. Both meet current regulatory requirements. All other specifications are identical.

Q: Are these fuses suitable for both AC and DC applications?

A: Yes. Both parts are rated for 125 VAC and 60 VDC operation, making them suitable for mixed AC/DC circuit protection in telecom systems.

Q: What holder is required for these fuses?

A: These indicating fuses require an external holder for installation. The physical dimensions (0.688" L x 0.127" W x 0.810" H) determine holder compatibility. Verify holder specifications match these dimensions.

Q: What does "indicating fuse" mean?

A: An indicating fuse includes a visual indicator that shows when the fuse has blown, allowing for quick identification of a fault condition without requiring electrical testing.

Q: Are these parts RoHS compliant?

A: Yes. GMT-2A is RoHS Compliant, and BK/GMT-2A is ROHS3 Compliant. Both meet RoHS directive requirements for hazardous substance restrictions.