Equivalent & Substitute Parts for BK/C515-6-R

Part Overview

The BK/C515-6-R is a 6 A, 125 V AC/DC slow-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This through-hole mounted fuse is designed for general-purpose circuit protection in electronic equipment and industrial applications. The part is currently active in production with 822 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

BK/C515-6-R

Eaton - Electronics DivisionIn Stock: 861BK/C515-6-R Datasheet

Current PartRFQ

0230006.HXP

Littelfuse Inc.In Stock: 10250230006.HXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/C515-6-R is determined by strict alignment with the following parameters:

Critical Parameters (Must Match Exactly):

• Current Rating: 6 A
• Voltage Rating (AC): 125 V
• Fuse Type: Cartridge, Glass
• Response Time: Slow Blow
• Mounting Type: Through Hole

Mechanical Parameters (Must Be Compatible):

• Package / Case: 2AG or equivalent non-standard axial cartridge format
• Physical Dimensions: Approximately 5mm diameter × 15mm length (minor variations acceptable within standard tolerance)

Electrical Parameters (Must Meet or Exceed):

• Breaking Capacity: 400 A minimum
• DC Cold Resistance: Within 0.014 Ohms ±10%

Compliance Parameters (Must Maintain or Exceed):

• Approval Agency: UL certification required
• RoHS Status: RoHS Compliant or ROHS3 Compliant

The substitute part 0230006.HXP from Littelfuse Inc. meets all critical and mechanical parameters. It provides additional DC voltage rating (125 V DC) and extended operating temperature range (-55°C to 125°C), making it suitable for applications requiring broader environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (BK/C515-6-R): Select the BK/C515-6-R when the design specifies Eaton components, when existing inventory must be maintained for consistency, or when the application operates within standard temperature ranges (assumed 0°C to 70°C based on industry norms). This part carries UL approval and RoHS compliance, meeting standard regulatory requirements for consumer and industrial electronics.

Substitute Part Selection (0230006.HXP): Select the 0230006.HXP when:

• Extended operating temperature range (-55°C to 125°C) is required for the application
• Multi-agency certification (CE, CSA, PSE, UL) is specified in design requirements
• Littelfuse component standardization is preferred across the product line
• The application requires explicit DC voltage rating (125 V DC)
• Primary part availability is constrained

Both parts maintain identical current rating, AC voltage rating, fuse type, response time, and breaking capacity. The dimensional variation (5.50mm vs. 4.50mm diameter; 15.20mm vs. 14.50mm length) is within acceptable tolerance for through-hole axial mounting on standard PCB footprints designed for 2AG cartridge fuses.

The lower melting I²t value (380 vs. 471.36) in the substitute part indicates slightly faster thermal response. This difference is not significant for slow-blow fuse applications and does not affect substitution eligibility.

Frequently Asked Questions (FAQ)

Q: Can the 0230006.HXP directly replace the BK/C515-6-R in existing designs?

A: Yes. Both parts are 6 A, 125 V AC slow-blow glass cartridge fuses with identical current rating, voltage rating, fuse type, response time, and breaking capacity. Both are through-hole mounted in axial format. The dimensional variation (approximately 1mm difference in diameter and length) is within standard PCB footprint tolerance for 2AG cartridge fuse holders.

Q: What is the significance of the DC voltage rating on the substitute part?

A: The BK/C515-6-R does not specify a DC voltage rating in the provided data. The 0230006.HXP explicitly rates 125 V DC, indicating it is qualified for both AC and DC applications. If the circuit includes DC voltage exposure, the substitute part provides documented DC performance. The main part may also support DC operation, but this is not specified in the available technical data.

Q: Are there compliance differences between the two parts?

A: Both parts carry UL approval and RoHS compliance. The substitute part (0230006.HXP) additionally carries CE, CSA, and PSE certifications. If the application requires multi-regional regulatory compliance, the substitute part exceeds the main part's certification scope. For applications requiring only UL and RoHS, both parts are equivalent.

Q: What does the difference in melting I²t values mean?

A: The melting I²t value (471.36 for BK/C515-6-R vs. 380 for 0230006.HXP) indicates the thermal energy required to melt the fuse element. The lower value in the substitute part means it reaches thermal cutoff slightly faster under sustained overcurrent conditions. For slow-blow fuses, this difference is minor and does not affect circuit protection performance in standard applications. Both parts are rated for identical current and voltage.

Q: Can I use these fuses in high-temperature environments?

A: The BK/C515-6-R does not specify an operating temperature range. The 0230006.HXP is rated for -55°C to 125°C. If the application operates outside standard temperature ranges (typically 0°C to 70°C), the substitute part with documented temperature rating is the appropriate choice. Verify the main part's temperature capability with Eaton technical documentation if high-temperature operation is required.

Q: Are the physical dimensions critical for PCB mounting?

A: The dimensional difference (5.50mm vs. 4.50mm diameter; 15.20mm vs. 14.50mm length) is within standard tolerance for through-hole axial cartridge fuse holders. Both parts fit standard 2AG fuse clips and holders. If the PCB footprint is tightly constrained, verify the specific holder specifications. For typical industrial and consumer electronics applications, both parts are mechanically compatible.

Q: Which part should I specify for new designs?

A: For new designs, either part is acceptable based on the electrical and mechanical requirements. If extended temperature range, multi-agency certification, or explicit DC voltage rating is required, specify the 0230006.HXP. If component standardization with existing Eaton inventory is preferred, specify the BK/C515-6-R. Both parts are active products with adequate stock availability.