Equivalent & Substitute Parts for BK/C519-600MA

Part Overview

The BK/C519-600MA is a 600 mA, 250 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for use in 2AG form factor holders and provides slow-blow response characteristics. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain circuit protection functionality in applications requiring this specific electrical and mechanical configuration.

Substiute Parts

BK/C519-600MA

Eaton - Electronics DivisionIn Stock: 1184BK/C519-600MA Datasheet

Current PartRFQ

BK/C519-600-R

Eaton - Electronics DivisionIn Stock: 747BK/C519-600-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/C519-600MA is determined by strict equivalence across the following critical parameters:

• Current Rating: 600 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Package / Case: 2AG, 5mm x 15mm (mechanical and electrical compatibility)
• Fuse Type: Cartridge, Glass (functional form factor)
• Response Time: Slow Blow (circuit protection characteristic)
• Breaking Capacity: 35A @ rated voltage (fault interruption capability)
• Approval Agencies: CSA, UL (regulatory compliance)

The substitute part BK/C519-600-R meets all these criteria and is classified as an active product, making it a direct functional equivalent for applications currently using the obsolete BK/C519-600MA.

Parameter Comparison

Engineering Selection Recommendations

The BK/C519-600-R is the direct equivalent substitute for the obsolete BK/C519-600MA. Both parts are manufactured by Eaton - Electronics Division within the same C519 series and share identical electrical and mechanical specifications across all critical parameters: 600 mA current rating, 250 V AC voltage rating, 2AG form factor, slow-blow response, and 35A breaking capacity.

The primary distinction between the two parts is product status and regulatory compliance. The BK/C519-600-R is an active product with RoHS compliance, whereas the BK/C519-600MA is obsolete and RoHS non-compliant. Both parts carry CSA and UL approvals, confirming regulatory acceptance for circuit protection applications.

For new designs or replacement applications, the BK/C519-600-R should be selected. The electrical and mechanical interchangeability is complete, with no functional differences in circuit protection performance.

Frequently Asked Questions (FAQ)

Q: Can BK/C519-600-R be used as a direct replacement for BK/C519-600MA?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: 600 mA current rating, 250 V AC voltage rating, 2AG package form factor, slow-blow response time, and 35A breaking capacity. Both are approved by CSA and UL. The BK/C519-600-R is the active equivalent.

Q: What is the 2AG package form factor?

A: The 2AG designation refers to a standardized glass cartridge fuse package measuring 5mm diameter by 15mm length (0.205" Dia x 0.571" L). This fuse requires installation in a compatible 2AG fuse holder.

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

A: No. Both parts have identical melting I²t values (6.982), DC cold resistance (0.38 Ohms), and breaking capacity (35A @ rated voltage). Circuit protection characteristics are equivalent.

Q: Why is the BK/C519-600MA listed as obsolete?

A: The BK/C519-600MA has been discontinued by the manufacturer. The BK/C519-600-R is the active replacement within the same product series.

Q: Does the RoHS compliance difference affect substitution?

A: The BK/C519-600-R is RoHS compliant while the BK/C519-600MA is not. For applications subject to RoHS requirements, the BK/C519-600-R is the appropriate selection. Both parts maintain identical electrical and mechanical functionality.

Q: What holder type is required for these fuses?

A: Both the BK/C519-600MA and BK/C519-600-R require a 2AG fuse holder. These fuses are cartridge-type and cannot function without a compatible holder assembly.