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

Part Overview

The BK/ABC-V-1/2-R is a 500 mA ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 250 V AC and 125 V DC operation. This fast-blow fuse is designed for through-hole mounting in 3AB/3AG standard form factor (1/4" x 1-1/4" axial). The part is currently active in production with 705 units in stock. Equivalent substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across manufacturing environments where identical electrical and mechanical specifications are required.

Substiute Parts

BK/ABC-V-1/2-R

Eaton - Electronics DivisionIn Stock: 756BK/ABC-V-1/2-R Datasheet

Current PartRFQ

0324.500HXP

Littelfuse Inc.In Stock: 11120324.500HXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/ABC-V-1/2-R is determined by strict equivalence across the following parameters:

Electrical Parameters (Non-Negotiable):

• Current Rating: 500 mA
• Voltage Rating AC: 250 V
• Voltage Rating DC: 125 V
• Response Time: Fast Blow
• Breaking Capacity: 35A AC, 10kA DC

Mechanical Parameters (Non-Negotiable):

• Fuse Type: Cartridge, Ceramic
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial)
• Mounting Type: Through Hole

Compliance Parameters (Required):

• RoHS3 Compliance
• Regulatory Certifications: CSA, UL

The substitute part 0324.500HXP manufactured by Littelfuse Inc. meets all critical electrical, mechanical, and compliance requirements and is therefore classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution Criteria Met:

The 0324.500HXP from Littelfuse Inc. is a direct equivalent to the BK/ABC-V-1/2-R based on the following:

1. Electrical Equivalence: Both parts share identical current rating (500 mA), AC voltage rating (250 V), DC voltage rating (125 V), response time (Fast Blow), and breaking capacity (35A AC, 10kA DC).

2. Mechanical Compatibility: Both parts conform to the 3AB/3AG standard form factor with 1/4" x 1-1/4" axial dimensions. Dimensional variations (0.266" vs. 0.275" diameter; 1.292" vs. 1.288" length) are within acceptable mechanical tolerances for through-hole mounting applications.

3. Regulatory Compliance: Both parts are ROHS3 compliant. The Littelfuse part carries additional CE certification in addition to CSA and UL approvals, meeting or exceeding the certification requirements of the original part.

4. Product Status: Both parts are active in production with adequate inventory availability.

Selection Basis:

Parts may be selected based on procurement availability, lead time, cost considerations, or supply chain strategy. Both parts are suitable for direct replacement in circuit designs requiring 500 mA ceramic cartridge fuses at 250 V AC / 125 V DC with fast-blow response characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 0324.500HXP be used as a direct replacement for the BK/ABC-V-1/2-R in existing designs?

A: Yes. Both parts meet identical electrical specifications (500 mA, 250 V AC, 125 V DC, fast-blow response) and conform to the same mechanical form factor (3AB/3AG, 1/4" x 1-1/4" axial). Through-hole mounting compatibility is confirmed. Both parts carry required regulatory certifications (CSA, UL, ROHS3).

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The Littelfuse 0324.500HXP has a slightly larger diameter (0.275" vs. 0.266") and marginally shorter length (1.288" vs. 1.292"). These differences fall within standard mechanical tolerances for 3AB/3AG form factor fuses and do not affect through-hole mounting compatibility.

Q: What is the difference in Melting I²t values between the two parts?

A: The Littelfuse part (0.115) has a higher Melting I²t value than the Eaton part (0.039). Both parts maintain identical fast-blow response classification and breaking capacity specifications. The I²t difference reflects manufacturing process variations between manufacturers while maintaining equivalent functional performance at rated current and voltage.

Q: Do both parts have the same certifications?

A: Both parts carry CSA and UL certifications. The Littelfuse 0324.500HXP additionally carries CE certification. Both are ROHS3 compliant. The Littelfuse part meets or exceeds the certification requirements of the original Eaton part.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs requiring 500 mA ceramic cartridge fuses at 250 V AC / 125 V DC with fast-blow response. Selection may be based on procurement lead time, cost, inventory availability, or established supplier relationships. Both parts are active in production with confirmed stock availability.

Q: Are there any operating temperature differences?

A: The Littelfuse 0324.500HXP specifies an operating temperature range of -55°C to 125°C. The Eaton part does not specify an operating temperature range in the provided data. Both parts are suitable for standard industrial and commercial applications within normal operating environments.