Equivalent & Substitute Parts for BK/C515-3A

Part Overview

The BK/C515-3A is a 3 A, 250 V AC/DC glass cartridge fuse with 2AG package configuration (5mm x 15mm axial). Manufactured by Eaton - Electronics Division, this component is classified as obsolete product status. Due to its obsolete designation, identifying equivalent and substitute parts with active product status is necessary for ongoing circuit protection applications and system maintenance. The substitute parts listed maintain identical electrical and mechanical specifications while offering improved availability and compliance status.

Substiute Parts

BK/C515-3A

Eaton - Electronics DivisionIn Stock: 1061BK/C515-3A Datasheet

Current PartRFQ

BK/C515-3-R

Eaton - Electronics DivisionIn Stock: 1324BK/C515-3-R Datasheet

DirectRFQ

BK/C515S-3-R

Eaton - Electronics DivisionIn Stock: 793BK/C515S-3-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/C515-3A is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Current Rating: 3 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 100 A (exact match required)
• DC Cold Resistance: 0.035 Ohms (exact match required)
• Melting I²t: 80.426 (exact match required)

Mechanical Parameters:

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

Certification Parameters:

• Approval Agency: CSA, UL (exact match required)

The substitute parts BK/C515-3-R and BK/C515S-3-R satisfy all critical parameters and are therefore direct functional equivalents for the obsolete BK/C515-3A.

Parameter Comparison

Engineering Selection Recommendations

BK/C515-3-R is the primary substitute for BK/C515-3A. This part maintains active product status with Eaton - Electronics Division and achieves ROHS3 compliance. With 1257 pieces in stock, it provides superior availability compared to the obsolete main part. The BK/C515-3-R is suitable for new designs and replacement applications requiring current regulatory compliance.

BK/C515S-3-R is an alternative substitute with equivalent electrical and mechanical specifications. This part also maintains active product status and achieves RoHS compliance. With 687 pieces in stock, it remains available for applications where either substitute meets procurement requirements.

Both substitute parts are certified by CSA and UL, matching the approval agencies of the original BK/C515-3A. Selection between BK/C515-3-R and BK/C515S-3-R should be based on inventory availability and specific compliance documentation requirements for the application.

Frequently Asked Questions (FAQ)

Q: Can BK/C515-3-R and BK/C515S-3-R be used interchangeably with BK/C515-3A?

A: Yes. Both substitute parts are electrically and mechanically equivalent to BK/C515-3A. All critical parameters including current rating (3 A), voltage rating (250 V AC), response time (Slow Blow), package configuration (2AG, 5mm x 15mm), breaking capacity (100 A), and resistance specifications (0.035 Ohms) are identical. Both are certified by CSA and UL.

Q: What is the primary difference between the substitute parts?

A: The main differences are product status and RoHS compliance level. BK/C515-3-R carries ROHS3 compliance with higher inventory (1257 pcs), while BK/C515S-3-R carries RoHS compliance with lower inventory (687 pcs). Both are active products from Eaton - Electronics Division.

Q: Why is the original BK/C515-3A listed as obsolete?

A: The BK/C515-3A is classified as obsolete product status. The active substitute parts BK/C515-3-R and BK/C515S-3-R provide equivalent functionality with improved compliance and availability.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. All three parts share identical mechanical specifications: 2AG package configuration, 5mm x 15mm axial dimensions (0.217" Dia x 0.598" L), through-hole mounting type, and glass cartridge fuse construction. Direct mechanical substitution is supported.

Q: Do the substitute parts maintain the same electrical performance characteristics?

A: Yes. The substitute parts maintain identical electrical specifications: 3 A current rating, 250 V AC voltage rating, slow blow response time, 100 A breaking capacity, 80.426 melting I²t, and 0.035 Ohms DC cold resistance.

Q: Which substitute part should be selected for new designs?

A: BK/C515-3-R is recommended for new designs due to its active product status, ROHS3 compliance, and higher inventory availability (1257 pcs). This part ensures long-term supply continuity and meets current regulatory requirements.