BK/AGC-V-4 Equivalent & Substitute Parts

Part Overview

The BK/AGC-V-4 is a 4 A, 250 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This through-hole component features a 3AB/3AG package format with dimensions of 1/4" x 1-1/4" (6.76mm x 32.82mm). The fuse is designed for general-purpose circuit protection applications requiring fast response characteristics and is currently in active production status.

Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable, to support supply chain flexibility, or to accommodate specific procurement requirements while maintaining equivalent electrical and mechanical performance.

Substiute Parts

BK/AGC-V-4

Eaton - Electronics DivisionIn Stock: 913BK/AGC-V-4 Datasheet

Current PartRFQ

0318004.HXP

Littelfuse Inc.In Stock: 13050318004.HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Electrical Parameters:

• Current Rating: 4 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 200 A (exact match required)

Mechanical Parameters:

• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The substitute part 0318004.HXP (Littelfuse Inc., Series 318) meets all critical electrical and mechanical parameters and is therefore classified as a direct equivalent for the BK/AGC-V-4.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/AGC-V-4 and 0318004.HXP are active production components with established approval certifications. The BK/AGC-V-4 carries CSA and UL approvals, while the 0318004.HXP carries broader international certifications including CE, CSA, KC, PSE, and UL.

The 0318004.HXP substitute part is ROHS3 compliant, whereas the BK/AGC-V-4 is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements.

Both parts are functionally equivalent across all critical electrical and mechanical parameters. Selection between these parts should be based on supply availability, regulatory compliance requirements, and procurement specifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can the 0318004.HXP be used as a direct replacement for the BK/AGC-V-4?

A: Yes. The 0318004.HXP meets all critical electrical and mechanical specifications: 4 A current rating, 250 V AC voltage rating, fast-blow response, 200 A breaking capacity, 3AB/3AG package format, and through-hole mounting. Both components operate across the same temperature range (-55°C ~ 125°C).

Q: What are the dimensional differences between these parts?

A: The BK/AGC-V-4 has a diameter of 0.266" (6.76mm) and length of 1.292" (32.82mm). The 0318004.HXP has a diameter of 0.275" (6.99mm) and length of 1.288" (32.72mm). These minor variations remain within the 3AB/3AG package specification and do not affect mechanical compatibility in standard through-hole fuse holders.

Q: Are there differences in electrical characteristics between these parts?

A: Both parts share identical current rating, voltage rating, response time, and breaking capacity. The DC cold resistance differs (0.024 Ohms vs. 0.0293 Ohms) and the melting I²t values differ (86.56 vs. 28.5). These variations are within acceptable tolerance for fast-blow cartridge fuses of this rating and do not affect functional equivalence for circuit protection applications.

Q: What regulatory certifications apply to each part?

A: The BK/AGC-V-4 carries CSA and UL approvals. The 0318004.HXP carries CE, CSA, KC, PSE, and UL approvals. Selection should account for the specific regulatory requirements of the target market or application.

Q: Does RoHS compliance affect substitution eligibility?

A: The BK/AGC-V-4 is RoHS non-compliant, while the 0318004.HXP is ROHS3 compliant. For applications subject to RoHS regulations, the 0318004.HXP is the appropriate selection. For applications without RoHS requirements, both parts are functionally equivalent.