BK/ABC-25YX Ceramic Cartridge Fuse 25A 250VAC 125VDC Equivalent & Substitute Parts

Part Overview

The BK/ABC-25YX is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 25 amperes at 250 volts AC and 125 volts DC. This fast-blow fuse is designed for use in 3AB, 3AG holder configurations with dimensions of 0.250" diameter by 1.250" length (6.35mm x 31.75mm). The part is currently active in production status with 754 pieces in stock. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, fuse type, response characteristics, and holder compatibility to ensure direct functional replacement in circuit protection applications.

Substiute Parts

BK/ABC-25YX

Eaton - Electronics DivisionIn Stock: 785BK/ABC-25YX Datasheet

Current PartRFQ

BK/ABC-25-R

Eaton - Electronics DivisionIn Stock: 1448BK/ABC-25-R Datasheet

Parametric EquivalentRFQ

BK/GBB-25-R

Eaton - Electronics DivisionIn Stock: 893BK/GBB-25-R Datasheet

Parametric EquivalentRFQ

0314025.HXP

Littelfuse Inc.In Stock: 14300314025.HXP Datasheet

Parametric EquivalentRFQ

0314025.MX52LP

LittelfuseIn Stock: 16400314025.MX52LP Datasheet

Parametric EquivalentRFQ

0314025.MXP

Littelfuse Inc.In Stock: 21350314025.MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/ABC-25YX are qualified based on the following criteria:

Electrical Parameters (Mandatory Match):

• Current Rating: 25 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Response Time: Fast Blow

Mechanical Parameters (Mandatory Match):

• Fuse Type: Cartridge, Ceramic
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
• Size / Dimension: 0.250" Dia x 1.250" L (6.35mm x 31.75mm)
• Mounting Type: Requires Holder

Functional Parameters (Mandatory Match):

• Breaking Capacity @ Rated Voltage: 200A AC minimum, 400A DC minimum

All identified substitute parts meet these core electrical, mechanical, and functional requirements, ensuring direct interchangeability in applications requiring the BK/ABC-25YX specification.

Parameter Comparison

Engineering Selection Recommendations

Eaton ABC Series (BK/ABC-25-R): This substitute maintains identical electrical and mechanical specifications to the BK/ABC-25YX with equivalent breaking capacity ratings. The BK/ABC-25-R offers enhanced compliance status with ROHS3 certification and CSA/UL approvals, providing additional regulatory alignment for applications requiring higher compliance standards.

Eaton GBB Series (BK/GBB-25-R): This substitute meets all core electrical and mechanical requirements with identical current, voltage, and dimensional specifications. The GBB series features improved DC cold resistance (0.000252 Ohms versus 0.0028 Ohms) and ROHS3 compliance. Breaking capacity is specified at 200A AC only, with no DC specification provided.

Littelfuse 314 Series (0314025.HXP, 0314025.MX52LP, 0314025.MXP): These substitutes provide equivalent electrical ratings and mechanical dimensions with full ROHS3 compliance and extended operating temperature range (-55°C to 125°C). All three Littelfuse parts carry CE, K-MARK, PSE, and UL certifications. Breaking capacity is specified at 100A AC and 400A DC. The 0314025.MX52LP variant includes axial mounting designation.

All substitute parts maintain active production status and are available in stock quantities suitable for procurement.

Frequently Asked Questions (FAQ)

Q: Can BK/ABC-25-R be used as a direct replacement for BK/ABC-25YX?

A: Yes. Both parts share identical electrical ratings (25A, 250VAC, 125VDC), fuse type (ceramic cartridge), response time (fast blow), mechanical dimensions (0.250" x 1.250"), and holder compatibility (3AB, 3AG). Breaking capacity specifications are equivalent at 200A AC and 400A DC.

Q: What is the difference between Eaton and Littelfuse substitutes?

A: All substitutes meet the core electrical and mechanical requirements. Littelfuse parts (0314025 series) provide extended operating temperature range (-55°C to 125°C) and additional international certifications (CE, K-MARK, PSE). Eaton parts maintain the original manufacturer's design characteristics. Breaking capacity differs: Eaton parts specify 200A AC, while Littelfuse parts specify 100A AC.

Q: Are the Littelfuse 314 series parts interchangeable with each other?

A: The three Littelfuse variants (0314025.HXP, 0314025.MX52LP, 0314025.MXP) share identical electrical specifications and are functionally equivalent. The 0314025.MX52LP includes axial mounting designation in its package specification. All three are suitable for 3AB, 3AG holder applications.

Q: Does DC cold resistance variation affect substitution compatibility?

A: DC cold resistance values differ among substitutes (ranging from 0.000252 to 0.00235 Ohms) but all remain within acceptable parameters for ceramic cartridge fuses in this current and voltage class. These variations do not prevent functional substitution in standard circuit protection applications.

Q: What compliance certifications should I verify for my application?

A: The BK/ABC-25YX carries UR approval. Substitute BK/ABC-25-R adds CSA and UL certifications. Littelfuse parts provide CE, K-MARK, PSE, and UL certifications. Verify that the selected substitute meets your specific regulatory requirements before implementation.

Q: Can I use BK/GBB-25-R if my application requires DC breaking capacity specification?

A: BK/GBB-25-R does not provide a DC breaking capacity specification in the available data. If your application requires documented DC breaking capacity, select BK/ABC-25-R, 0314025.HXP, 0314025.MX52LP, or 0314025.MXP, all of which specify 400A DC breaking capacity.