Equivalent & Substitute Parts for BK/AGC-B-10

Part Overview

The BK/AGC-B-10 is a 10 A, 250 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This component operates within the 3AB and 3AG package standard, requiring a compatible fuse holder for installation. The part is currently active in production with 1041 pieces in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 10 A, 250 V AC/DC fuse protection with fast-blow response characteristics.

Substiute Parts

BK/AGC-B-10

Eaton - Electronics DivisionIn Stock: 1109BK/AGC-B-10 Datasheet

Current PartRFQ

AGC-10-R

Eaton - Electronics DivisionIn Stock: 1101AGC-10-R Datasheet

Parametric EquivalentRFQ

BK/AGC-10-R

Eaton - Electronics DivisionIn Stock: 3587BK/AGC-10-R Datasheet

Parametric EquivalentRFQ

BK/AGC-10RX

Eaton - Electronics DivisionIn Stock: 1138BK/AGC-10RX Datasheet

Parametric EquivalentRFQ

0312010.HXP

Littelfuse Inc.In Stock: 36270312010.HXP Datasheet

SimilarRFQ

0312010.MXP

Littelfuse Inc.In Stock: 168920312010.MXP Datasheet

SimilarRFQ

0312010.VXP

LittelfuseIn Stock: 8780312010.VXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/AGC-B-10 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 10 A
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
• Breaking Capacity @ Rated Voltage: 200 A
• Operating Temperature Range: -55°C ~ 125°C
• Size / Dimension: 0.250" Dia x 1.250" L (6.35mm x 31.75mm)
• Mounting Type: Requires Holder

All identified substitute parts meet these mandatory parameters. Parametric equivalents are Eaton - Electronics Division parts that share identical electrical and mechanical specifications. Similar parts are manufactured by Littelfuse Inc. and meet the same functional requirements within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

Eaton - Electronics Division Parametric Equivalents (AGC-10-R, BK/AGC-10-R, BK/AGC-10RX):

These parts are direct parametric equivalents to the BK/AGC-B-10, sharing identical electrical characteristics, breaking capacity, melting I²t values, and DC cold resistance. All three parts carry ROHS3 compliance status, representing an upgrade from the non-compliant status of the main part. All maintain CSA and UL approval certifications. These parts are suitable for direct substitution in applications where RoHS3 compliance is required or preferred.

Littelfuse Inc. Similar Parts (0312010.HXP, 0312010.MXP, 0312010.VXP):

These Littelfuse 312 series fuses meet all mandatory electrical and mechanical parameters. They carry ROHS3 compliance and expanded approval certifications including CE, KC, and PSE in addition to CSA and UL. The DC cold resistance is 0.0093 Ohms compared to 0.008 Ohms for Eaton parts, and the melting I²t value is 298 compared to 486 for Eaton parts. These differences remain within the functional equivalence range for 10 A, 250 V AC/DC fast-blow cartridge fuse applications. Littelfuse parts are suitable for substitution in applications requiring broader international certifications or where Littelfuse supply chain integration is preferred.

Frequently Asked Questions (FAQ)

Q: Can AGC-10-R be used as a direct replacement for BK/AGC-B-10?

A: Yes. AGC-10-R is a parametric equivalent manufactured by Eaton - Electronics Division with identical current rating (10 A), voltage rating (250 V AC), response time (fast blow), package specification (3AB, 3AG, 1/4" x 1-1/4"), breaking capacity (200 A), and operating temperature range (-55°C ~ 125°C). The primary difference is RoHS3 compliance status.

Q: What is the difference between BK/AGC-10-R and BK/AGC-10RX?

A: Both parts are manufactured by Eaton - Electronics Division and share identical electrical and mechanical specifications. The difference lies in the part number designation; both are parametric equivalents to BK/AGC-B-10 with ROHS3 compliance and CSA/UL certifications.

Q: Are Littelfuse 0312010 series fuses compatible with the same holders as Eaton AGC fuses?

A: Yes. All substitute parts conform to the 3AB and 3AG package standard with identical physical dimensions of 0.250" diameter by 1.250" length (6.35mm x 31.75mm). They are mechanically compatible with holders designed for the BK/AGC-B-10.

Q: What is the significance of the melting I²t difference between Eaton and Littelfuse parts?

A: The melting I²t value (486 for Eaton, 298 for Littelfuse) represents the thermal energy required to melt the fuse element. Both values are within the functional range for 10 A, 250 V AC/DC fast-blow cartridge fuses. The difference reflects manufacturing design variations between manufacturers while maintaining equivalent fast-blow response characteristics and breaking capacity.

Q: Which substitute part has the broadest international certification coverage?

A: The Littelfuse parts (0312010.HXP, 0312010.MXP, 0312010.VXP) carry certifications from CE, CSA, KC, PSE, and UL, providing broader international approval coverage compared to Eaton parts which carry CSA and UL certifications only.

Q: Is the DC cold resistance difference between Eaton (0.008 Ohms) and Littelfuse (0.0093 Ohms) significant?

A: The DC cold resistance values are within acceptable tolerance for 10 A, 250 V AC/DC cartridge fuses. Both values support equivalent electrical performance in circuit protection applications.

Q: What inventory levels are available for each substitute part?

A: BK/AGC-10-R has 3531 pieces in stock, BK/AGC-10RX has 1083 pieces, AGC-10-R has 1031 pieces, 0312010.MXP has 16866 pieces, 0312010.HXP has 3603 pieces, and 0312010.VXP has 790 pieces available.