Equivalent & Substitute Parts for BK/C515S-5-R

Part Overview

The BK/C515S-5-R is a 5 A, 125 V AC/DC slow-blow glass cartridge fuse in 2AG package format (5mm x 15mm axial). Manufactured by Eaton - Electronics Division, this fuse is designed for through-hole mounting applications requiring circuit protection with controlled response characteristics. The part maintains Active product status with 664 units in current inventory. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

BK/C515S-5-R

Eaton - Electronics DivisionIn Stock: 734BK/C515S-5-R Datasheet

Current PartRFQ

BK/C515-5-R

Eaton - Electronics DivisionIn Stock: 1032BK/C515-5-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/C515S-5-R is based on strict equivalence across the following critical parameters:

Electrical Parameters:

• Current Rating: 5 A (exact match required)
• Voltage Rating (AC): 125 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 400 A (exact match required)
• DC Cold Resistance: 0.019 Ohms (exact match required)
• Melting I²t: 354.813 (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)

Compliance Parameters:

• Approval Agency: UL (exact match required)
• RoHS Status: RoHS Compliant (equivalent compliance levels acceptable)

The substitute part BK/C515-5-R meets all electrical, mechanical, and compliance requirements for direct substitution in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both BK/C515S-5-R and BK/C515-5-R are Active products manufactured by Eaton - Electronics Division within the C515 series. Selection between these parts is based on availability and inventory status rather than technical performance differentiation.

BK/C515S-5-R carries RoHS Compliant certification with 664 units in current inventory.

BK/C515-5-R carries ROHS3 Compliant certification with 973 units in current inventory and includes REACH Unaffected status.

Both parts satisfy UL approval requirements and maintain identical electrical performance across all specified parameters. The choice between these substitutes depends on procurement requirements, supply chain logistics, and compliance documentation needs specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can BK/C515-5-R be used as a direct replacement for BK/C515S-5-R?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: 5 A current rating, 125 V AC voltage rating, slow-blow response, 2AG package format, 400 A breaking capacity, and 0.019 Ohms DC cold resistance. Both are UL-approved and RoHS compliant.

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

A: Both designations indicate compliance with Restriction of Hazardous Substances directives. ROHS3 represents a more recent revision of the standard. Both parts meet hazardous substance restrictions for circuit protection applications.

Q: Are the physical dimensions identical?

A: Yes. Both parts share the same 2AG package format with dimensions of 0.217" Dia x 0.598" L (5.50mm x 15.20mm). They are mechanically interchangeable in through-hole mounting applications.

Q: What does the melting I²t value of 354.813 indicate?

A: The melting I²t value specifies the thermal energy required to melt the fuse element. This value is identical for both parts, ensuring identical response characteristics and protection performance in circuit applications.

Q: Can these fuses be used in DC applications?

A: Both parts are rated for 125 V AC/DC operation. The DC cold resistance of 0.019 Ohms is specified for both parts, confirming DC compatibility.

Q: What is the breaking capacity significance?

A: The 400 A breaking capacity at rated voltage indicates the maximum fault current these fuses can safely interrupt. This specification is identical for both substitute parts.