SCX147-5R0 Equivalent & Substitute Parts

Part Overview

The SCX147-5R0 is an unshielded 2-coil inductor array manufactured by Signal Transformer, designed for surface mount applications. This component features dual inductance configurations: 19.6 µH when coils are connected in series and 5 µH when connected in parallel, with a maximum DC resistance of 14 mOhm in parallel configuration and 56 mOhm in series configuration. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

SCX147-5R0

Signal TransformerIn Stock: 1011SCX147-5R0 Datasheet

Current PartRFQ

CTX5-4-R

Eaton - Electronics DivisionIn Stock: 1150CTX5-4-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCX147-5R0 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance values in both series (19.6 µH) and parallel (5 µH) configurations must match within the specified tolerance range
• Current ratings must meet or exceed the original specifications in both configurations (4.4 A parallel, 2.2 A series)
• DC resistance values must not exceed the maximum specifications (14 mOhm parallel, 56 mOhm series)
• Number of coils must remain at 2 to maintain dual-configuration functionality

Mechanical Compatibility Criteria:

• Surface mount mounting type is required
• Shielding type must be unshielded to match the original design
• Physical dimensions and height must be compatible with existing PCB layouts

Compliance Criteria:

• RoHS3 compliance is mandatory for regulatory alignment
• Moisture sensitivity level of 1 (Unlimited) is required

The CTX5-4-R from Eaton - Electronics Division meets all electrical and mechanical substitution criteria while maintaining active product status and full regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The CTX5-4-R is a direct functional equivalent to the SCX147-5R0 for applications requiring a 2-coil inductor array with dual inductance configurations. The substitute part maintains identical electrical performance in series configuration (19.6 µH) and equivalent performance in parallel configuration (4.9 µH falls within the ±20% tolerance band of the original 5 µH specification). Current ratings and DC resistance specifications are identical across both configurations.

The CTX5-4-R offers the advantage of active product status, ensuring ongoing availability and supply chain stability. Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), meeting regulatory requirements for current manufacturing standards.

Physical dimensions show minor variation: the substitute part is slightly smaller (0.550" vs 0.567" in length and width, and 0.250" vs 0.276" in height). PCB layout compatibility must be verified for applications with tight spatial constraints, though the reduced footprint generally presents no substitution barriers.

Frequently Asked Questions (FAQ)

Q: Can the CTX5-4-R replace the SCX147-5R0 in existing designs?

A: Yes. The CTX5-4-R meets all critical electrical specifications. The parallel inductance of 4.9 µH is within the ±20% tolerance of the original 5 µH specification. Series inductance, current ratings, and DC resistance values are identical. Verify PCB layout compatibility due to minor dimensional differences.

Q: What is the significance of the inductance difference in parallel configuration (5 µH vs 4.9 µH)?

A: The 0.1 µH difference represents a 2% variance, well within the ±20% tolerance specification for both components. This difference is electrically insignificant for circuit operation and does not affect substitution validity.

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

A: No. Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance requirements are identical.

Q: How do the physical dimensions affect substitution?

A: The CTX5-4-R is slightly smaller than the SCX147-5R0. Verify that the reduced footprint (0.550" x 0.550" vs 0.567" x 0.567") and lower height (0.250" vs 0.276") are compatible with existing PCB layouts and component placement constraints.

Q: What is the advantage of selecting the CTX5-4-R over the obsolete SCX147-5R0?

A: The CTX5-4-R is an active product with guaranteed supply chain availability. The obsolete status of the SCX147-5R0 creates sourcing risk for new production and repair applications. The substitute part provides equivalent electrical performance with improved long-term availability.

Q: Are there packaging differences to consider?

A: The CTX5-4-R is supplied in Tape & Reel (TR) packaging, which is standard for high-volume surface mount assembly. Verify packaging compatibility with your assembly process requirements.