SCX114-4R7 Equivalent & Substitute Parts

Part Overview

The SCX114-4R7 is an unshielded 2-coil inductor array manufactured by Signal Transformer, designed for surface mount applications. This component features dual inductance configurations: 18.8 µH when coils are connected in series and 4.7 µH when connected in parallel. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

SCX114-4R7

Signal TransformerIn Stock: 717SCX114-4R7 Datasheet

Current PartRFQ

744871004

Würth ElektronikIn Stock: 1503744871004 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCX114-4R7 is determined by the following critical parameters:

• Inductance values: Both parallel (4.7 µH) and series (18.8 µH) configurations must be maintained
• Tolerance: ±20% specification must be met
• Number of coils: Dual-coil configuration is required
• Current ratings: Minimum current capacity of 2 A (parallel) and 1 A (series) must be supported
• DC resistance: Electrical performance depends on DCR specifications
• Mounting type: Surface mount compatibility is mandatory
• Compliance: RoHS3 and REACH compliance status must be verified

The Würth Elektronik 744871004 qualifies as a substitute based on matching inductance values, tolerance, coil configuration, and compliance certifications. Dimensional variations and enhanced electrical performance characteristics are acceptable within the scope of component substitution.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744871004 is the qualified substitute for the obsolete SCX114-4R7. Both components maintain identical inductance specifications across parallel and series configurations and share equivalent tolerance ratings. The substitute demonstrates superior electrical performance with reduced DC resistance in parallel configuration (28 mOhm versus 41 mOhm) and increased current handling capacity (3 A parallel, 1.5 A series versus 2 A parallel, 1 A series).

The substitute component is actively manufactured and maintains full RoHS3 and REACH compliance. Dimensional differences are minor: the substitute is 0.031" (0.80 mm) larger in length and width, and 0.039" (1.00 mm) taller. PCB layout verification is required to confirm accommodation of these dimensional variations. The addition of shielding in the substitute component provides enhanced electromagnetic isolation, which may benefit circuit performance in noise-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the 744871004 be used as a direct replacement for the SCX114-4R7?

A: The 744871004 qualifies as a functional substitute based on matching inductance values, tolerance, and coil configuration. PCB layout must be verified to accommodate the slightly larger footprint (0.492" x 0.492" versus 0.461" x 0.461") and increased height (0.256" versus 0.217").

Q: What are the key differences between these components?

A: The primary differences are: the substitute features shielding (original is unshielded), improved DC resistance characteristics, higher current ratings, and active product status. Dimensional variations are minor and typically accommodated in standard PCB designs.

Q: Are both components RoHS3 compliant?

A: Yes, both the SCX114-4R7 and 744871004 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Does the shielding in the substitute component affect circuit performance?

A: Shielding reduces electromagnetic interference and may improve performance in noise-sensitive applications. Circuit validation is recommended if electromagnetic compatibility is a critical design parameter.

Q: What packaging formats are available for the substitute?

A: The 744871004 is supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes.