SCX114-500 Equivalent & Substitute Parts

Part Overview

The SCX114-500 is an unshielded 2-coil inductor array manufactured by Signal Transformer, designed for surface mount applications. This component provides dual inductance configurations: 202.07 µH when coils are connected in series and 50 µH when connected in parallel, with a maximum DC resistance of 316 mOhm in parallel configuration and 1.263 Ohm in series configuration. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

SCX114-500

Signal TransformerIn Stock: 886SCX114-500 Datasheet

Current PartRFQ

CTX50-1P-R

Eaton - Electronics DivisionIn Stock: 889CTX50-1P-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCX114-500 is determined by the following critical electrical and mechanical parameters:

Electrical Criteria:

• Inductance values in both parallel (50 µH) and series (202.07 µH) configurations must remain within the ±20% tolerance band
• Current ratings must meet or exceed 700 mA for parallel configuration and 350 mA for series configuration
• DC resistance characteristics must not exceed specified maximums: 316 mOhm (parallel) and 1.263 Ohm (series)
• Dual-coil array configuration is mandatory

Mechanical Criteria:

• Surface mount mounting type required
• Nonstandard package compatibility
• Physical dimensions and height must accommodate existing PCB layouts

Compliance Criteria:

• ROHS3 compliance required
• MSL rating of 1 or better

The CTX50-1P-R from Eaton - Electronics Division meets all specified electrical parameters and maintains full compliance with environmental and regulatory requirements while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

The CTX50-1P-R is the qualified substitute for the SCX114-500 based on the following engineering criteria:

Electrical Equivalence: The CTX50-1P-R maintains identical current ratings (700 mA parallel, 350 mA series) and DC resistance specifications (316 mOhm parallel, 1.263 Ohm series). The parallel inductance of 50.52 µH falls within the ±20% tolerance band relative to the 50 µH specification, and the series inductance matches exactly at 202.07 µH.

Compliance Status: Both components are ROHS3 compliant and carry MSL rating of 1 (Unlimited), ensuring equivalent environmental and handling requirements.

Product Availability: The CTX50-1P-R holds active product status with current manufacturing support, addressing the obsolescence of the SCX114-500. The substitute is available in standard Tape & Reel packaging for production environments.

Physical Compatibility: Dimensional differences are minimal. The CTX50-1P-R is slightly smaller in footprint (11.43mm vs 11.70mm) and lower in profile (4.19mm vs 5.50mm), which may provide layout advantages in space-constrained applications while maintaining functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CTX50-1P-R be used as a direct replacement for the SCX114-500?

A: Yes. The CTX50-1P-R meets all specified electrical parameters including inductance values, current ratings, and DC resistance characteristics. Both components are dual-coil unshielded inductor arrays with identical tolerance specifications and compliance certifications.

Q: What is the significance of the 50.52 µH vs 50 µH inductance difference in parallel configuration?

A: The 0.52 µH difference represents a 1.04% deviation, well within the ±20% tolerance specification for both components. This variation is acceptable for circuit operation and does not constitute a functional limitation.

Q: Are there physical layout considerations when switching from SCX114-500 to CTX50-1P-R?

A: The CTX50-1P-R has a smaller footprint (11.43mm vs 11.70mm) and lower height (4.19mm vs 5.50mm). These dimensional reductions may improve PCB layout efficiency. Verify that the reduced height does not create clearance issues with adjacent components or solder joint geometry.

Q: What packaging options are available for the CTX50-1P-R?

A: The CTX50-1P-R is supplied in Tape & Reel (TR) packaging, standard for automated assembly environments. This differs from the SCX114-500, for which packaging information was not specified.

Q: Are there temperature operating range differences between these components?

A: The CTX50-1P-R specifies an operating temperature range of -40°C to 85°C. The SCX114-500 operating temperature range was not provided in available documentation. Confirm that the CTX50-1P-R temperature range meets your application requirements.

Q: Do both components require identical handling and storage procedures?

A: Yes. Both components carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard ESD precautions and dry storage conditions apply to both parts.