SCX114-R68 Equivalent & Substitute Parts

Part Overview

The SCX114-R68 is an unshielded 2-coil inductor array manufactured by Signal Transformer, designed for surface mount applications. This component features dual inductance configurations: 2.4 µH when coils are connected in series and 680 nH when connected in parallel, with a maximum DC resistance of 11 mOhm in parallel configuration. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

SCX114-R68

Signal TransformerIn Stock: 984SCX114-R68 Datasheet

Current PartRFQ

CTX0.68-1P-R

Eaton - Electronics DivisionIn Stock: 1193CTX0.68-1P-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCX114-R68 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance values in both series (2.4 µH) and parallel (680 nH nominal) configurations must be maintained within the specified ±20% tolerance band
• Current ratings must meet or exceed the original specifications: 5.1 A for parallel configuration and 2.55 A for series configuration
• DC resistance characteristics must not exceed the maximum values: 11 mOhm for parallel and 45 mOhm for series configurations
• Dual-coil architecture (2 coils) is required

Mechanical Compatibility Criteria:

• Surface mount mounting type is mandatory
• Nonstandard package classification must be preserved
• Physical dimensions and height must accommodate existing PCB layouts and assembly processes
• Unshielded configuration must be maintained

Compliance Requirements:

• RoHS3 compliance is required
• Moisture sensitivity level of 1 (Unlimited) must be maintained

The substitute part CTX0.68-1P-R meets these criteria through equivalent electrical performance and compatible physical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The CTX0.68-1P-R from Eaton - Electronics Division is a qualified substitute for the obsolete SCX114-R68. Both components maintain identical series inductance (2.4 µH), matching current ratings (5.1 A parallel, 2.55 A series), and equivalent tolerance specifications (±20%). The substitute demonstrates superior DC resistance characteristics, with lower maximum values in both configurations (6 mOhm parallel vs. 11 mOhm, and 25 mOhm series vs. 45 mOhm), providing improved thermal performance.

The CTX0.68-1P-R carries active product status, ensuring long-term availability and supply chain continuity. Both components are ROHS3 compliant and maintain MSL 1 classification. Physical dimensions are comparable, with the substitute featuring a slightly reduced footprint (0.450" vs. 0.461") and lower profile (0.165" vs. 0.217"), which may provide layout advantages in space-constrained applications.

The parallel inductance differs by 80 nH (600 nH vs. 680 nH), representing an 11.8% reduction within the ±20% tolerance band and acceptable for most circuit applications where the series configuration is the primary operating mode.

Frequently Asked Questions (FAQ)

Q: Can the CTX0.68-1P-R directly replace the SCX114-R68 in existing designs?

A: Yes, the CTX0.68-1P-R is electrically and mechanically compatible. Both components feature identical series inductance (2.4 µH), matching current ratings, and equivalent tolerance specifications. The substitute's reduced DC resistance and lower profile may provide performance improvements. Physical dimensions are comparable, though the substitute is slightly smaller.

Q: What is the significance of the 80 nH difference in parallel inductance?

A: The parallel inductance differs from 680 nH to 600 nH, a reduction of approximately 11.8%. This variation falls within the ±20% tolerance specification for both components and is acceptable for applications where the series configuration (2.4 µH) is the primary operating mode. Circuit-specific validation is necessary if parallel configuration performance is critical.

Q: Are both components suitable for the same operating temperature range?

A: The SCX114-R68 does not specify an operating temperature range in the provided data. The CTX0.68-1P-R operates across -40°C to 85°C. Design validation should confirm that the substitute's temperature range meets application requirements.

Q: What are the packaging differences between these components?

A: Both components use nonstandard surface mount packages. The CTX0.68-1P-R is supplied in Tape & Reel (TR) packaging, while the SCX114-R68 packaging format is not specified. The substitute's slightly reduced dimensions (0.450" vs. 0.461" length and width, 0.165" vs. 0.217" height) may provide layout advantages.

Q: Why is the SCX114-R68 classified as obsolete?

A: The SCX114-R68 is no longer in active production. The CTX0.68-1P-R from Eaton maintains active product status, ensuring continued availability and supply chain support for new designs and production requirements.

Q: Do both components meet the same compliance standards?

A: Yes, both the SCX114-R68 and CTX0.68-1P-R are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity classification. Both carry EAR99 ECCN designation.