Equivalent & Substitute Parts for BK/ABC-V-4 Ceramic Fuse

Part Overview

The BK/ABC-V-4 is a 4 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation, designed for through-hole mounting in 3AB/3AG package format (1/4" x 1-1/4" axial). This component is classified as obsolete by the manufacturer. Identification of equivalent and substitute parts is necessary to maintain circuit protection functionality in applications where the original part is no longer available from primary sources. All substitute parts listed maintain identical electrical ratings and mechanical form factors while offering active product status and improved compliance characteristics.

Substiute Parts

BK/ABC-V-4

Eaton - Electronics DivisionIn Stock: 750BK/ABC-V-4 Datasheet

Current PartRFQ

BK/ABC-V-4-R

Eaton - Electronics DivisionIn Stock: 1233BK/ABC-V-4-R Datasheet

DirectRFQ

ABC-V-4-R

Eaton - Electronics DivisionIn Stock: 1142ABC-V-4-R Datasheet

Parametric EquivalentRFQ

BK/GBB-V-4-R

Eaton - Electronics DivisionIn Stock: 1190BK/GBB-V-4-R Datasheet

Parametric EquivalentRFQ

GBB-V-4-R

Eaton - Electronics DivisionIn Stock: 890GBB-V-4-R Datasheet

Parametric EquivalentRFQ

0324004.HXP

Littelfuse Inc.In Stock: 11540324004.HXP Datasheet

DirectRFQ

0324004.MXP

Littelfuse Inc.In Stock: 44160324004.MXP Datasheet

DirectRFQ

0324004.VXP

Littelfuse Inc.In Stock: 8050324004.VXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/ABC-V-4 is determined by strict equivalence across the following parameters:

• Current Rating: 4 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)

All substitute parts listed below satisfy these mandatory criteria. Variations in secondary parameters such as breaking capacity, melting I²t, DC cold resistance, and approval agencies do not disqualify substitution when primary electrical and mechanical parameters are identical.

Parameter Comparison

Engineering Selection Recommendations

Eaton ABC Series (Direct Manufacturer Equivalents):

BK/ABC-V-4-R and ABC-V-4-R represent the active product line replacements for the obsolete BK/ABC-V-4. Both parts maintain identical electrical and mechanical specifications with the original component. These parts carry ROHS3 compliance and are recommended as primary substitutes when Eaton product continuity is required. The difference between BK/ABC-V-4-R and ABC-V-4-R is packaging format only.

Eaton GBB Series (Parametric Equivalents):

BK/GBB-V-4-R and GBB-V-4-R are alternative Eaton series offerings that meet all primary electrical and mechanical requirements. These parts are suitable for applications where series designation is not a critical constraint. Both carry ROHS3 compliance and active product status.

Littelfuse 324 Series (Cross-Manufacturer Equivalents):

0324004.HXP, 0324004.MXP, and 0324004.VXP are Littelfuse ceramic cartridge fuses that satisfy all mandatory substitution criteria. These parts feature expanded approval agency certifications (CE, CSA, K-MARK, PSE, UL for 0324004.HXP and 0324004.MXP; CE, CSA, KC, PSE, UL for 0324004.VXP) and extended operating temperature range (-55°C to 125°C). ROHS3 compliance and REACH unaffected status are confirmed. Higher breaking capacity (750A AC) provides enhanced circuit protection margin.

All listed substitutes are suitable for direct replacement in through-hole applications requiring 4 A, 250 V AC / 125 V DC ceramic cartridge fuses in 3AB/3AG package format.

Frequently Asked Questions (FAQ)

Q: Can BK/ABC-V-4-R be used as a direct replacement for BK/ABC-V-4?

A: Yes. BK/ABC-V-4-R is the active product equivalent from Eaton - Electronics Division. It maintains identical current rating (4 A), voltage ratings (250 V AC, 125 V DC), fuse type (ceramic cartridge), response time (fast blow), and mechanical package (3AB, 3AG, 1/4" x 1-1/4" axial). The primary difference is product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between ABC-V-4-R and BK/ABC-V-4-R?

A: Both parts are electrically and mechanically identical. The difference is packaging format: ABC-V-4-R is supplied in bulk packaging, while BK/ABC-V-4-R may have different packaging designation. Electrical performance and substitution capability are equivalent.

Q: Are Littelfuse 0324004 series fuses compatible with Eaton ABC series applications?

A: Yes. The Littelfuse 0324004.HXP, 0324004.MXP, and 0324004.VXP fuses meet all mandatory electrical and mechanical parameters: 4 A current rating, 250 V AC / 125 V DC voltage ratings, ceramic cartridge type, fast blow response, and 3AB/3AG package format. These are cross-manufacturer equivalents suitable for direct replacement.

Q: What is the significance of the different melting I²t values among substitute parts?

A: Melting I²t is a secondary parameter that describes the thermal energy required to melt the fuse element. Variations in this parameter (ranging from 10.4 to 29.1 across the listed parts) do not affect substitution eligibility when primary electrical and mechanical parameters are identical. The fuse will still operate at the specified 4 A rating and voltage ratings.

Q: Can GBB series fuses replace ABC series fuses?

A: Yes. BK/GBB-V-4-R and GBB-V-4-R are parametric equivalents that satisfy all primary substitution criteria. Series designation does not prevent substitution when electrical ratings, fuse type, response time, and mechanical package are identical.

Q: What is the operating temperature range for each substitute?

A: Eaton ABC and GBB series parts do not specify an operating temperature range in the provided data. Littelfuse 0324004 series parts operate across -55°C to 125°C. For applications requiring extended temperature operation, Littelfuse parts provide documented thermal performance.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed (BK/ABC-V-4-R, ABC-V-4-R, BK/GBB-V-4-R, GBB-V-4-R, 0324004.HXP, 0324004.MXP, 0324004.VXP) carry ROHS3 compliance status. The original BK/ABC-V-4 is RoHS non-compliant.

Q: What approval agencies certify these fuses?

A: Eaton ABC and GBB series parts carry CSA and UL approvals (GBB series also includes UR). Littelfuse 0324004 series parts carry CE, CSA, K-MARK, PSE, and UL certifications (0324004.VXP includes KC instead of K-MARK). All parts meet international safety standards for ceramic cartridge fuses.

Q: Is there a difference in DC cold resistance among the substitutes?

A: Yes. DC cold resistance varies from 0.02975 Ω (original BK/ABC-V-4) to 0.047 Ω (Littelfuse 0324004 series). This parameter does not affect fuse operation at rated current and is not a substitution-limiting factor.