Keystone Electronics 4246 Cartridge Fuse Clip - Equivalent & Substitute Parts

Part Overview

The Keystone Electronics 4246 is a 15 A single-circuit cartridge fuse clip designed for chassis mount applications. This component accommodates 1/4" diameter fuses and features quick connect termination with 0.187" (4.7mm) contacts. The part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and component procurement.

Substiute Parts

4246

Keystone ElectronicsIn Stock: 10424246 Datasheet

Current PartRFQ

4247

Keystone ElectronicsIn Stock: 7754247 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Keystone Electronics 4246 is determined by the following critical parameters:

• Current Rating: 15 A (exact match required)
• Fuse Size: 0.25" Dia (6.35mm) (exact match required)
• Fuse Type: Cartridge (exact match required)
• Fuseholder Type: Clip (exact match required)
• Number of Circuits: 1 (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Contact Material: Brass (exact match required)
• Contact Finish: Nickel (exact match required)
• Approval Agency: UL (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

The Keystone Electronics 4247 qualifies as a substitute because it maintains equivalence across all critical electrical and mechanical parameters. The termination contact dimensions differ (0.205" vs. 0.187"), which represents a minor variation within acceptable tolerance ranges for quick connect applications and does not compromise functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Keystone Electronics 4247 is the manufacturer-recommended substitute for the obsolete 4246. Both components maintain identical electrical specifications (15 A current rating) and mechanical form factors (0.25" diameter cartridge, single-circuit clip-type fuseholder). The 4247 carries active product status, ensuring continued availability and supply chain support.

The termination contact dimension variation (0.205" versus 0.187") represents a minor mechanical tolerance difference within standard quick connect specifications and does not affect electrical performance or safety ratings. Both parts maintain UL approval and ROHS3 compliance, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can the Keystone 4247 directly replace the 4246 in existing designs?

A: Yes. The 4247 maintains electrical and mechanical equivalence across all critical parameters. The termination contact dimension difference is a minor variation within acceptable quick connect tolerances and does not compromise compatibility.

Q: What is the primary reason for substitution?

A: The Keystone 4246 is classified as obsolete. The 4247 is the active equivalent, ensuring continued component availability and supply chain reliability.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the 4246 and 4247 carry identical UL approval and ROHS3 compliance certifications, confirming regulatory equivalence.

Q: Does the termination contact size difference affect circuit performance?

A: No. The contact dimension variation (0.205" versus 0.187") falls within standard quick connect specifications and does not alter electrical performance, current capacity, or safety characteristics.

Q: What fuse types are compatible with both the 4246 and 4247?

A: Both components are designed for 1/4" diameter (0.25") cartridge fuses rated at 15 A.