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

Part Overview

The BK/ABC-V-1 is a 1 A, 250 V AC / 125 V DC ceramic cartridge fuse with fast-blow response characteristics, designed for through-hole mounting in 3AB, 3AG package format (1/4" x 1-1/4" axial). This fuse is classified as obsolete, which necessitates identification of active equivalent and substitute parts to maintain circuit protection functionality in existing designs and new production applications.

Substiute Parts

BK/ABC-V-1

Eaton - Electronics DivisionIn Stock: 870BK/ABC-V-1 Datasheet

Current PartRFQ

BK/ABC-V-1-R

Eaton - Electronics DivisionIn Stock: 820BK/ABC-V-1-R Datasheet

DirectRFQ

ABC-V-1-R

Eaton - Electronics DivisionIn Stock: 957ABC-V-1-R Datasheet

Parametric EquivalentRFQ

BK/GBB-V-1-R

Eaton - Electronics DivisionIn Stock: 905BK/GBB-V-1-R Datasheet

Parametric EquivalentRFQ

GBB-V-1-R

Eaton - Electronics DivisionIn Stock: 866GBB-V-1-R Datasheet

Parametric EquivalentRFQ

0324001.HXP

Littelfuse Inc.In Stock: 12880324001.HXP Datasheet

DirectRFQ

0324001.MXP

Littelfuse Inc.In Stock: 11470324001.MXP Datasheet

DirectRFQ

0324001.VXP

Littelfuse Inc.In Stock: 10630324001.VXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/ABC-V-1 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Current Rating: 1 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Voltage Rating - DC: 125 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)

Secondary Compatibility Factors:

• Physical dimensions must accommodate existing through-hole footprints
• Breaking capacity and DC cold resistance variations are acceptable within the same functional class
• Melting I²t values may vary within the fast-blow ceramic fuse category
• Approval agencies must include CSA and/or UL certification

All substitute parts listed below satisfy these criteria and are classified as active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

Direct Manufacturer Equivalents (Eaton - Electronics Division):

The BK/ABC-V-1-R and ABC-V-1-R represent the primary direct replacements from the original manufacturer. Both parts maintain identical electrical specifications (1 A, 250 V AC, 125 V DC, fast-blow response) and physical package dimensions. These parts are active products with ROHS3 compliance, addressing the RoHS non-compliance status of the obsolete BK/ABC-V-1. The difference between BK/ABC-V-1-R and ABC-V-1-R is packaging designation only, with both offering equivalent electrical performance.

Series Variants (Eaton GBB Series):

The BK/GBB-V-1-R and GBB-V-1-R are parametric equivalents from Eaton's GBB series. These parts maintain all critical electrical parameters (1 A, 250 V AC, 125 V DC, fast-blow, 3AB/3AG package) and are active products with ROHS3 compliance. The GBB-V-1-R offers higher AC breaking capacity (200A) compared to the ABC series (35A), providing enhanced fault protection capability. Both GBB variants feature lower DC cold resistance (0.1775 Ω) relative to the ABC series.

Cross-Manufacturer Alternatives (Littelfuse Inc.):

The Littelfuse 324 series parts (0324001.HXP, 0324001.MXP, 0324001.VXP) are direct functional equivalents meeting all primary substitution criteria. These parts are active products with ROHS3 compliance and extended operating temperature range (-55°C to 125°C). The 324 series offers 100A AC breaking capacity and includes broader approval agency certifications (CE, CSA, PSE, UL). Physical dimensions show minor variation (0.275" Dia x 1.288" L versus 0.266" Dia x 1.292" L), which remains compatible with standard 3AB/3AG through-hole footprints.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant, addressing environmental regulatory requirements. Littelfuse 324 series parts include REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating, providing additional supply chain flexibility.

Frequently Asked Questions (FAQ)

Q: Can BK/ABC-V-1 be directly replaced with BK/ABC-V-1-R?

A: Yes. The BK/ABC-V-1-R is the active equivalent from Eaton - Electronics Division. Both parts share identical electrical specifications (1 A, 250 V AC, 125 V DC, fast-blow response) and physical dimensions (0.266" Dia x 1.292" L). The primary difference is product status (obsolete versus active) and RoHS compliance (non-compliant versus ROHS3 compliant). Direct substitution is appropriate for new designs and production transitions.

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

A: Both parts are electrically and mechanically identical. The difference is packaging designation. BK/ABC-V-1-R is supplied in bulk packaging, while ABC-V-1-R is also supplied in bulk. Both are active products from Eaton's ABC series with ROHS3 compliance. Selection between these variants depends on procurement and inventory management requirements.

Q: Are Littelfuse 324 series fuses (0324001.HXP, 0324001.MXP, 0324001.VXP) compatible with BK/ABC-V-1 applications?

A: Yes. The Littelfuse 324 series parts are parametric equivalents meeting all critical electrical specifications (1 A, 250 V AC, 125 V DC, fast-blow, 3AB/3AG package). Physical dimensions show minor variation (0.275" Dia x 1.288" L versus 0.266" Dia x 1.292" L), which remains compatible with standard through-hole mounting. These parts are active products with ROHS3 compliance and extended operating temperature range (-55°C to 125°C).

Q: What is the difference between 0324001.HXP, 0324001.MXP, and 0324001.VXP?

A: All three Littelfuse parts are electrically and mechanically identical. They share the same electrical specifications, breaking capacity, melting I²t, DC cold resistance, and physical dimensions. The suffix designations (HXP, MXP, VXP) represent different packaging or distribution variants. Selection among these parts depends on procurement availability and supply chain requirements.

Q: Can GBB series fuses (BK/GBB-V-1-R, GBB-V-1-R) be used as replacements for ABC series fuses?

A: Yes. The GBB series parts are parametric equivalents meeting all primary substitution criteria (1 A, 250 V AC, 125 V DC, fast-blow, 3AB/3AG package, through-hole mounting). Both GBB variants are active products with ROHS3 compliance. The GBB-V-1-R offers higher AC breaking capacity (200A) compared to ABC series (35A), providing enhanced fault protection. DC cold resistance is lower in GBB series (0.1775 Ω versus 0.195-0.197 Ω), which may affect circuit behavior in applications with tight resistance tolerances.

Q: What approval agencies certify these substitute fuses?

A: Eaton ABC and GBB series parts carry CSA and UL certifications (with GBB series also including UR). Littelfuse 324 series parts carry CE, CSA, PSE, and UL certifications. All substitute parts meet the original BK/ABC-V-1 certification requirements (CSA, UL).

Q: Are there operating temperature differences between substitute parts?

A: The original BK/ABC-V-1 does not specify an operating temperature range. Littelfuse 324 series parts specify -55°C to 125°C operating temperature range. Eaton ABC and GBB series parts do not specify operating temperature ranges in the provided data. For applications requiring extended temperature operation, Littelfuse 324 series parts provide documented temperature specifications.

Q: How do melting I²t values affect substitution?

A: Melting I²t values indicate the thermal energy required to melt the fuse element. The original BK/ABC-V-1 has a melting I²t of 1.4, while substitute parts range from 0.431 to 0.69. Lower I²t values indicate faster response to overcurrent conditions. These variations are acceptable within the fast-blow ceramic fuse category and do not prevent substitution. Applications with specific I²t requirements should verify compatibility with the selected substitute part.

Q: What is the significance of DC cold resistance differences?

A: DC cold resistance values range from 0.1775 Ω to 0.197 Ω across all parts. These minor variations may affect circuit behavior in applications with tight resistance tolerances or where fuse voltage drop is a design consideration. For most standard applications, these differences are negligible. Applications with specific resistance requirements should verify compatibility with the selected substitute part.