BK/AGC-V-7-R Equivalent & Substitute Parts

Part Overview

The BK/AGC-V-7-R is a 7 A, 250 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This component is classified as Active product status and is designed for through-hole mounting applications requiring fast response time protection in the 3AB, 3AG form factor (1/4" x 1-1/4" axial configuration).

Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and functional characteristics align with the original specification, enabling direct replacement in circuit protection applications without design modification.

Substiute Parts

BK/AGC-V-7-R

Eaton - Electronics DivisionIn Stock: 886BK/AGC-V-7-R Datasheet

Current PartRFQ

0318007.HXP

Littelfuse Inc.In Stock: 10640318007.HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/AGC-V-7-R is determined by the following critical parameters:

Electrical Equivalence:

• Current Rating: 7 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 Compatibility:

• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) form factor
• Mounting Type: Through Hole
• Physical dimensions within tolerance for socket compatibility

Environmental & Compliance:

• Operating Temperature Range: -55°C ~ 125°C
• Regulatory approvals (CSA, UL, or equivalent)
• RoHS compliance status

The substitute part 0318007.HXP (Littelfuse Inc.) satisfies all critical electrical and mechanical parameters, enabling functional equivalence in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: BK/AGC-V-7-R (Eaton - Electronics Division)

The BK/AGC-V-7-R maintains Active product status with established supply availability (859 Pcs in stock). This component carries CSA and UL approvals and is RoHS Compliant, meeting standard regulatory requirements for circuit protection applications.

Equivalent Substitute: 0318007.HXP (Littelfuse Inc.)

The 0318007.HXP is functionally equivalent for direct replacement applications. This part maintains identical electrical ratings (7 A, 250 V AC, Fast Blow response) and mechanical compatibility (3AB, 3AG form factor, through-hole mounting). The substitute carries expanded regulatory approvals (CE, CSA, KC, PSE, UL) and ROHS3 Compliance status, providing broader international market acceptance. Supply availability is higher (983 Pcs in stock).

Dimensional Tolerance Consideration:

Physical dimensions show minor variation: the Littelfuse part exhibits slightly larger diameter (0.275" vs. 0.266") and marginally shorter length (1.288" vs. 1.292"). These differences remain within standard 3AB, 3AG socket tolerances and do not affect functional compatibility in standard through-hole applications.

Resistance Differential:

DC cold resistance differs between parts (0.012 Ohms vs. 0.0146 Ohms). This variation is within acceptable tolerance for fast-blow fuse applications and does not impact circuit protection performance at rated current.

Frequently Asked Questions (FAQ)

Q: Can the 0318007.HXP directly replace the BK/AGC-V-7-R in existing circuit designs?

A: Yes. Both components share identical electrical ratings (7 A, 250 V AC, Fast Blow), breaking capacity (200 A), and mechanical form factor (3AB, 3AG, 1/4" x 1-1/4" axial). Through-hole mounting compatibility is maintained. No circuit design modification is required.

Q: What is the significance of the dimensional differences between these parts?

A: The BK/AGC-V-7-R measures 0.266" diameter x 1.292" length, while the 0318007.HXP measures 0.275" diameter x 1.288" length. Both dimensions fall within the standard 3AB, 3AG specification tolerance band and are compatible with standard fuse holders and sockets designed for this form factor.

Q: Are there differences in regulatory compliance between these parts?

A: The BK/AGC-V-7-R carries CSA and UL approvals. The 0318007.HXP carries expanded approvals including CE, CSA, KC, PSE, and UL. Both meet RoHS requirements (RoHS Compliant vs. ROHS3 Compliant). Selection depends on target market regulatory requirements.

Q: How do the melting I²t values differ, and does this affect substitution?

A: The BK/AGC-V-7-R specifies 195.02 A²s, while the 0318007.HXP specifies 118 A²s. Both values are within acceptable range for 7 A fast-blow fuses. The difference reflects manufacturing tolerance and does not prevent functional substitution in standard circuit protection applications.

Q: What is the DC cold resistance specification, and why does it vary between parts?

A: DC cold resistance measures the fuse element resistance at room temperature. The BK/AGC-V-7-R specifies 0.012 Ohms; the 0318007.HXP specifies 0.0146 Ohms. This variation is within acceptable tolerance for fast-blow cartridge fuses and does not affect circuit protection performance or compatibility.

Q: Which part should be selected for new designs?

A: Selection is based on supply chain strategy and regulatory market requirements. Both parts are Active status. The 0318007.HXP offers higher inventory availability and broader international regulatory approvals. The BK/AGC-V-7-R maintains established Eaton supply relationships. Either part is technically equivalent for circuit protection function.