Equivalent & Substitute Parts for BK/ABC-V-2-1/2 Ceramic Fuse

Part Overview

The BK/ABC-V-2-1/2 is a 2.5 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole mounted fuse is designed for fast-blow response applications and is housed in a 3AB/3AG package format measuring 0.266" diameter by 1.292" length. The main part is classified as obsolete, necessitating identification of active substitute components that maintain electrical and mechanical compatibility for continued system support and procurement.

Substiute Parts

BK/ABC-V-2-1/2

Eaton - Electronics DivisionIn Stock: 1073BK/ABC-V-2-1/2 Datasheet

Current PartRFQ

BK/ABC-V-2-1/2R

Eaton - Electronics DivisionIn Stock: 1096BK/ABC-V-2-1/2R Datasheet

DirectRFQ

ABC-V-2-1/2-R

Eaton - Electronics DivisionIn Stock: 822ABC-V-2-1/2-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete BK/ABC-V-2-1/2 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Current Rating: 2.5 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Voltage Rating - DC: 125 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 100 A AC, 10 kA DC (exact match required)
• Approval Agency: CSA, UL certification (required)

Mechanical Equivalence Criteria:

• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Size / Dimension: 0.266" Dia x 1.292" L (6.76 mm x 32.82 mm) (exact match required)

Both substitute parts listed below satisfy all electrical and mechanical equivalence criteria and are classified as active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

BK/ABC-V-2-1/2R (Direct Manufacturer Substitute): This part is the direct replacement from Eaton - Electronics Division and carries active product status. It maintains all electrical and mechanical specifications required for circuit protection equivalence. The part is RoHS Compliant and holds CSA and UL certifications. This substitute is suitable for applications requiring direct form-fit-function replacement of the obsolete BK/ABC-V-2-1/2.

ABC-V-2-1/2-R (Parametric Equivalent): This part is supplied in bulk packaging and is classified as active with ROHS3 Compliant status. It satisfies all electrical and mechanical equivalence parameters and carries the same CSA and UL approvals. This substitute is suitable for high-volume procurement applications where bulk packaging is acceptable.

Both substitutes are manufactured by Eaton - Electronics Division and provide equivalent circuit protection performance. Selection between the two substitutes should be based on packaging requirements and procurement volume.

Frequently Asked Questions (FAQ)

Q: Can BK/ABC-V-2-1/2R and ABC-V-2-1/2-R be used interchangeably with the obsolete BK/ABC-V-2-1/2?

A: Both substitute parts satisfy all electrical and mechanical equivalence criteria. They maintain identical current ratings (2.5 A), voltage ratings (250 V AC, 125 V DC), response time (Fast Blow), package format (3AB, 3AG, 1/4" x 1-1/4"), and breaking capacity (100 A AC, 10 kA DC). Both hold CSA and UL certifications. The substitutes are functionally equivalent for circuit protection applications.

Q: What is the difference between BK/ABC-V-2-1/2R and ABC-V-2-1/2-R?

A: The primary difference is packaging. BK/ABC-V-2-1/2R is supplied in standard packaging, while ABC-V-2-1/2-R is supplied in bulk packaging. Both parts are electrically and mechanically identical and carry active product status from Eaton - Electronics Division.

Q: Are the substitute parts RoHS compliant?

A: Yes. BK/ABC-V-2-1/2R is RoHS Compliant. ABC-V-2-1/2-R is ROHS3 Compliant. Both meet current RoHS requirements.

Q: Do the substitute parts fit the same circuit board footprint and through-hole mounting?

A: Yes. Both substitute parts maintain the identical 3AB/3AG package format with dimensions of 0.266" diameter by 1.292" length (6.76 mm x 32.82 mm). Through-hole mounting compatibility is preserved.

Q: What certifications do the substitute parts carry?

A: Both BK/ABC-V-2-1/2R and ABC-V-2-1/2-R carry CSA and UL approvals, matching the certification profile of the original BK/ABC-V-2-1/2.

Q: Are there inventory considerations for these substitutes?

A: BK/ABC-V-2-1/2R has 1064 pieces in stock. ABC-V-2-1/2-R has 772 pieces in stock. Both are available as new original components.