SCX114-8R0 Equivalent & Substitute Parts

Part Overview

The SCX114-8R0 is an unshielded 2-coil inductor array manufactured by Signal Transformer, designed for surface mount applications. This component features dual inductance configurations: 32.33 µH when coils are connected in series and 8 µH when connected in parallel, with a maximum DC resistance of 52 mOhm in parallel configuration. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

SCX114-8R0

Signal TransformerIn Stock: 1124SCX114-8R0 Datasheet

Current PartRFQ

CTX8-1P-R

Eaton - Electronics DivisionIn Stock: 1637CTX8-1P-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCX114-8R0 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance values in both series (32.33 µH) and parallel (8 µH) configurations must be maintained within the specified ±20% tolerance band
• Current ratings must meet or exceed the original specifications: 1.8 A for parallel configuration and 900 mA for series configuration
• DC resistance (DCR) values must not exceed the maximum specifications: 52 mOhm for parallel and 208 mOhm for series
• Number of coils must remain at 2 to preserve dual-configuration functionality
• Shielding type must remain unshielded to match electromagnetic performance characteristics

Mechanical Compatibility Criteria:

• Mounting type must be surface mount (SMD)
• Package configuration must be nonstandard to match the original form factor
• Physical dimensions and height must be compatible with existing PCB layouts

Compliance and Regulatory Criteria:

• RoHS3 compliance status must be maintained
• Moisture Sensitivity Level (MSL) classification must be 1 or equivalent
• REACH status must remain unaffected

Parameter Comparison

Engineering Selection Recommendations

The CTX8-1P-R manufactured by Eaton - Electronics Division qualifies as a direct substitute for the obsolete SCX114-8R0 based on the following engineering criteria:

Electrical Performance: The CTX8-1P-R maintains all critical electrical parameters within acceptable tolerances. The parallel inductance of 8.08 µH falls within the ±20% tolerance band of the original 8 µH specification. Series inductance remains at 32.33 µH. Current ratings and DC resistance specifications are identical or superior to the original part.

Mechanical Compatibility: Both parts feature identical mounting type (surface mount), package configuration (nonstandard), and coil count (2). Physical dimensions show minimal variation: the substitute is 0.011" (0.27mm) smaller in length and width, and 0.052" (1.31mm) lower in height. These dimensional differences are within typical PCB layout tolerances for nonstandard packages.

Regulatory Compliance: Both parts maintain ROHS3 compliance, MSL Level 1 classification, and REACH unaffected status, ensuring continued compliance with environmental and regulatory requirements.

Product Status Advantage: The CTX8-1P-R is classified as active product status, providing long-term availability and supply chain continuity compared to the obsolete SCX114-8R0.

Frequently Asked Questions (FAQ)

Q: Can the CTX8-1P-R be used as a direct replacement for the SCX114-8R0 in existing designs?

A: Yes. The CTX8-1P-R meets all electrical and mechanical substitution criteria. The parallel inductance of 8.08 µH is within the ±20% tolerance specification, and all current ratings and DC resistance values are equivalent or superior. The minimal dimensional differences (0.27mm in length/width, 1.31mm in height) are compatible with standard PCB layout tolerances for nonstandard packages.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution is determined by: (1) inductance values in both series and parallel configurations within ±20% tolerance, (2) current ratings meeting or exceeding 1.8 A (parallel) and 900 mA (series), (3) DC resistance not exceeding 52 mOhm (parallel) and 208 mOhm (series), (4) dual-coil configuration, and (5) unshielded design.

Q: Are there any packaging differences between the SCX114-8R0 and CTX8-1P-R?

A: Both parts use nonstandard surface mount packages. The SCX114-8R0 is supplied in standard inventory, while the CTX8-1P-R is supplied in Tape & Reel (TR) packaging. Both maintain identical MSL Level 1 classification and handling requirements.

Q: Does the CTX8-1P-R provide operating temperature specifications?

A: Yes. The CTX8-1P-R is rated for -40°C to 85°C operating temperature range. The original SCX114-8R0 does not specify an operating temperature range in the provided documentation.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the SCX114-8R0 and CTX8-1P-R are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.