Equivalent & Substitute Parts for BK/C515-4-R

Part Overview

The Eaton BK/C515-4-R is a 4 A, 125 V AC/DC glass cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in 2AG package format (5mm x 15mm axial). This fuse is classified as Active product status and carries UL approval. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when design flexibility is required across compatible electrical and mechanical specifications.

Substiute Parts

BK/C515-4-R

Eaton - Electronics DivisionIn Stock: 806BK/C515-4-R Datasheet

Current PartRFQ

0230004.DRT1P

Littelfuse Inc.In Stock: 69950230004.DRT1P Datasheet

DirectRFQ

0230004.HXP

Littelfuse Inc.In Stock: 9690230004.HXP Datasheet

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0230004.MXP

Littelfuse Inc.In Stock: 40410230004.MXP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/C515-4-R are qualified based on the following critical parameters that determine functional equivalence:

Electrical Parameters:

• Current Rating: 4 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)

Mechanical Parameters:

• Fuse Type: Cartridge, Glass (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Parameters:

• Approval Agency: UL certification (minimum requirement)
• RoHS Status: RoHS Compliant or ROHS3 Compliant (acceptable)

All substitute parts listed (0230004.HXP, 0230004.DRT1P, 0230004.MXP) meet these critical parameters. Dimensional variations within the axial cartridge format are acceptable provided electrical and mechanical specifications remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

All three Littelfuse substitute parts (0230004.HXP, 0230004.DRT1P, 0230004.MXP) are qualified equivalents for the Eaton BK/C515-4-R based on matching electrical and mechanical specifications. Selection among these substitutes should be based on the following factors:

Packaging Availability:

• 0230004.HXP: Bulk packaging, 959 units in stock
• 0230004.DRT1P: Cut Tape (CT) packaging, 6952 units in stock
• 0230004.MXP: Bulk packaging, 4013 units in stock

Compliance Scope: All substitute parts carry UL approval along with additional certifications (CE, CSA, PSE), exceeding the minimum UL requirement of the main part. All substitute parts maintain ROHS3 compliance, which is compatible with RoHS Compliant requirements.

Dimensional Considerations: Substitute parts feature slightly reduced dimensions (4.50mm diameter vs. 5.50mm, 14.50mm length vs. 15.20mm). These dimensional differences remain within acceptable tolerances for through-hole axial cartridge fuse applications and do not affect electrical performance or circuit compatibility.

Frequently Asked Questions (FAQ)

Q: Can 0230004.HXP, 0230004.DRT1P, and 0230004.MXP be used interchangeably with BK/C515-4-R?

A: Yes. All three Littelfuse parts match the critical electrical parameters (4 A current rating, 125 V AC voltage rating, slow-blow response, 400 A breaking capacity) and mechanical specifications (cartridge glass fuse, through-hole mounting). The parts differ only in packaging format and inventory availability.

Q: What is the difference between the three Littelfuse substitute parts?

A: The three parts are electrically and mechanically identical. The differences are: 0230004.HXP and 0230004.MXP are supplied in Bulk packaging, while 0230004.DRT1P is supplied in Cut Tape (CT) packaging. Inventory quantities vary: 0230004.DRT1P has 6952 units, 0230004.MXP has 4013 units, and 0230004.HXP has 959 units in stock.

Q: Are there dimensional compatibility concerns when substituting?

A: Substitute parts are slightly smaller (4.50mm diameter and 14.50mm length) compared to the main part (5.50mm diameter and 15.20mm length). These dimensional variations are acceptable for through-hole axial mounting applications and do not affect circuit board layout or electrical performance.

Q: Do the substitute parts meet the same approval standards?

A: The substitute parts exceed the approval requirements of the main part. While BK/C515-4-R carries UL approval, all Littelfuse substitutes carry UL approval plus additional certifications (CE, CSA, PSE), providing broader regulatory coverage.

Q: What is the difference in melting I²t between the main part and substitutes?

A: The main part (BK/C515-4-R) has a melting I²t of 233.346, while all Littelfuse substitutes have a melting I²t of 148. Both values are within acceptable ranges for 4 A slow-blow fuses and do not affect functional equivalence for standard circuit protection applications.

Q: Are the substitute parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 Compliant, which satisfies RoHS Compliant requirements. The substitute parts also include REACH Unaffected status, providing additional environmental compliance documentation.