Equivalent & Substitute Parts for Eaton BK/AGA-2 Glass Cartridge Fuse

Part Overview

The Eaton BK/AGA-2 is a fast-blow glass cartridge fuse rated at 2 A, 250 V AC/DC, designed for use in 1AG fuse holders. This component provides overcurrent protection in electrical circuits and is classified as an active product. Alternative equivalent parts may be required due to inventory availability, supply chain considerations, or specific application requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

BK/AGA-2

Eaton - Electronics DivisionIn Stock: 815BK/AGA-2 Datasheet

Current PartRFQ

AGA-2

Eaton - Electronics DivisionIn Stock: 1087AGA-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Eaton BK/AGA-2 fuse is determined by strict equivalence across the following critical parameters:

Current Rating: 2 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: 1AG, 1/4" x 5/8" (exact match required)

Size / Dimension: 0.250" Dia x 0.625" L (6.35mm x 15.88mm) (exact match required)

Breaking Capacity @ Rated Voltage: 100 A (exact match required)

DC Cold Resistance: 0.052 Ohms (exact match required)

Approval Agency: UL (exact match required)

Mounting Type: Requires Holder (exact match required)

Substitute parts must match all parameters listed above to ensure functional and mechanical compatibility within the intended application circuit and fuse holder assembly.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/AGA-2 and AGA-2 are active products manufactured by Eaton - Electronics Division with identical electrical and mechanical specifications. Selection between these parts should be based on:

Product Availability: The AGA-2 variant currently maintains higher inventory levels (981 Pcs) compared to the BK/AGA-2 (736 Pcs), making it suitable for applications requiring immediate procurement.

Compliance Status: Both parts carry UL approval and maintain identical RoHS non-compliant status, ensuring consistent regulatory treatment across applications.

Electrical Performance: Both parts deliver identical performance characteristics including 2 A current rating, 250 V AC/DC voltage rating, 100 A breaking capacity, and 0.052 Ohms DC cold resistance.

Physical Compatibility: Both parts are housed in identical 1AG, 1/4" x 5/8" packages and require standard 1AG fuse holders, ensuring direct mechanical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the AGA-2 be used as a direct replacement for the BK/AGA-2?

A: Yes. The AGA-2 is a parametric equivalent with identical current rating (2 A), voltage rating (250 V AC), fuse type (Cartridge, Glass), response time (Fast Blow), package specification (1AG, 1/4" x 5/8"), breaking capacity (100 A), and DC cold resistance (0.052 Ohms). Both parts are manufactured by Eaton - Electronics Division and carry UL approval.

Q: What fuse holder is required for these parts?

A: Both the BK/AGA-2 and AGA-2 require a standard 1AG fuse holder. The 1/4" x 5/8" (6.35mm x 15.88mm) physical dimensions are designed for compatibility with 1AG holder assemblies.

Q: Are there any differences in electrical performance between these parts?

A: No. Both parts are identical in electrical performance, including current rating, voltage rating, breaking capacity, and DC cold resistance.

Q: What is the significance of the "Fast Blow" response time?

A: Fast Blow indicates that these fuses are designed to open quickly under overcurrent conditions, providing rapid circuit protection. This characteristic is identical across both the BK/AGA-2 and AGA-2.

Q: Are these parts RoHS compliant?

A: No. Both the BK/AGA-2 and AGA-2 are RoHS non-compliant. Applications requiring RoHS compliance must identify alternative fuse products with RoHS-compliant status.

Q: What is the DC cold resistance specification used for?

A: DC cold resistance (0.052 Ohms) is a measured electrical parameter that characterizes the fuse element's resistance at room temperature. This specification is identical for both parts and is used in circuit analysis and thermal calculations.