Equivalent & Substitute Parts for BK/C515S-7-R

Part Overview

The BK/C515S-7-R is a 7 A, 125 V AC/DC slow-blow glass cartridge fuse in 2AG package format (5mm x 15mm axial). Manufactured by Eaton - Electronics Division, this component is classified as Active product status. The fuse is designed for through-hole mounting applications requiring reliable overcurrent protection with controlled response characteristics. Substitute parts are identified when inventory constraints, supply chain disruptions, or design revisions necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

BK/C515S-7-R

Eaton - Electronics DivisionIn Stock: 1140BK/C515S-7-R Datasheet

Current PartRFQ

BK/C515-7-R

Eaton - Electronics DivisionIn Stock: 1126BK/C515-7-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/C515S-7-R is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitute relationships:

Electrical Parameters (Non-Negotiable):

• Current Rating: 7 A
• Voltage Rating (AC): 125 V
• Response Time: Slow Blow
• Breaking Capacity @ Rated Voltage: 400 A
• Melting I²t: 710.5
• DC Cold Resistance: 0.013 Ohms

Mechanical Parameters (Non-Negotiable):

• Fuse Type: Cartridge, Glass
• Package / Case: 2AG, 5mm x 15mm (Axial)
• Mounting Type: Through Hole
• Physical Dimensions: 0.217" Dia x 0.598" L (5.50mm x 15.20mm)

Compliance Parameters (Required):

• Approval Agency: UL minimum certification
• RoHS Status: RoHS Compliant or higher

Substitute parts must satisfy all parameters listed above without exception. Deviations in any single parameter disqualify a part from substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

BK/C515-7-R as Direct Substitute:

The BK/C515-7-R qualifies as a parametric equivalent to the BK/C515S-7-R. Both components are manufactured by Eaton - Electronics Division and share identical electrical specifications (7 A, 125 V AC/DC, slow-blow response, 400 A breaking capacity, 710.5 I²t, 0.013 Ohms DC cold resistance) and mechanical specifications (2AG package, 5mm x 15mm axial, through-hole mounting).

Compliance advantages of the substitute include dual certification (CSA and UL versus UL only) and ROHS3 compliance status (versus RoHS Compliant). These certifications represent equivalent or enhanced regulatory standing for industrial and commercial applications.

Both parts maintain Active product status, ensuring continued manufacturer support and availability. Selection between these two parts may be based on inventory availability, supply chain logistics, or specific regional certification requirements.

Frequently Asked Questions (FAQ)

Q: Can BK/C515-7-R replace BK/C515S-7-R in all applications?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: 7 A current rating, 125 V AC/DC voltage rating, slow-blow response, 400 A breaking capacity, 2AG package format, and through-hole mounting. Both maintain Active product status and UL certification.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 represents a more recent compliance standard iteration. Both statuses indicate compliance with Restriction of Hazardous Substances directives. The substitute part's ROHS3 status does not create incompatibility; it reflects current regulatory alignment.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.217" Dia x 0.598" L (5.50mm x 15.20mm). They are mechanically interchangeable in through-hole PCB applications and panel-mount configurations.

Q: Does the CSA certification on the substitute part affect compatibility?

A: No. CSA (Canadian Standards Association) certification is an additional approval that does not conflict with UL certification. The substitute part carries both CSA and UL approvals, meeting or exceeding the main part's UL-only certification.

Q: Are the melting I²t and breaking capacity values identical?

A: Yes. Both parts specify 710.5 melting I²t and 400 A breaking capacity at rated voltage. These thermal and electrical characteristics are identical, ensuring equivalent protection performance.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. No design modifications are required. Both parts are direct substitutes with identical electrical performance, mechanical fit, and regulatory compliance for through-hole fuse applications rated 7 A at 125 V AC/DC.