Equivalent & Substitute Parts for BK/C515S-3-R

Part Overview

The BK/C515S-3-R is a 3 A, 250 V AC/DC slow-blow glass cartridge fuse in 2AG package format (5mm × 15mm axial). Manufactured by Eaton - Electronics Division, this through-hole fuse is designed for circuit protection applications requiring controlled response characteristics. The part maintains Active product status with 687 units in current inventory stock.

Substitute parts are identified when electrical parameters, mechanical dimensions, and approval certifications remain equivalent across the product line, enabling direct replacement in existing circuit designs without functional degradation.

Substiute Parts

BK/C515S-3-R

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

Current PartRFQ

BK/C515-3-R

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/C515S-3-R is determined by strict equivalence across the following critical parameters:

• Current Rating: 3 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 2AG, 5mm × 15mm (Axial) (exact match required)
• Mounting Type: Through Hole (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)
• Approval Agencies: CSA, UL (minimum certification requirement)

The substitute part BK/C515-3-R meets all electrical and mechanical equivalence criteria, confirming direct interchangeability within the C515 series product line.

Parameter Comparison

Engineering Selection Recommendations

Both BK/C515S-3-R and BK/C515-3-R are Active status products manufactured by Eaton - Electronics Division within the C515 series. Selection between these parts is based on inventory availability and compliance requirements:

BK/C515S-3-R carries RoHS Compliant certification with 687 units in stock. This part is suitable for applications where standard RoHS compliance is specified.

BK/C515-3-R carries ROHS3 Compliant certification with 1257 units in stock and includes REACH Unaffected status. This part is suitable for applications requiring enhanced environmental compliance documentation or where higher inventory availability is advantageous.

Both parts satisfy CSA and UL approval requirements. Electrical performance, mechanical dimensions, and thermal characteristics are identical across both options. Selection should be based on specific compliance requirements of the end application and current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can BK/C515-3-R directly replace BK/C515S-3-R in existing circuit designs?

A: Yes. Both parts are electrically and mechanically equivalent. All critical parameters including current rating (3 A), voltage rating (250 V), response time (Slow Blow), package format (2AG, 5mm × 15mm), breaking capacity (100 A), and resistance characteristics (0.035 Ohms) are identical. Direct substitution is valid without circuit modification.

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

A: ROHS3 Compliant represents an updated compliance standard. Both designations indicate restriction of hazardous substances in electrical and electronic equipment. The BK/C515-3-R carries the more recent ROHS3 designation. Both parts meet environmental compliance requirements for their respective applications.

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both parts measure 0.217" diameter × 0.598" length (5.50mm × 15.20mm). They are both 2AG package format with axial through-hole mounting. Physical interchangeability is confirmed.

Q: Which part should be selected if both are available?

A: Selection depends on application-specific compliance requirements and inventory considerations. If REACH documentation is required, select BK/C515-3-R. If standard RoHS compliance is sufficient, either part is acceptable. The BK/C515-3-R offers higher current inventory availability (1257 units versus 687 units).

Q: Do these fuses have different thermal or electrical performance characteristics?

A: No. Melting I²t (80.426), DC cold resistance (0.035 Ohms), and breaking capacity (100 A) are identical. Thermal response and electrical performance are equivalent across both part numbers.