SCX147-500 Equivalent & Substitute Parts

Part Overview

The SCX147-500 is an unshielded 2-coil inductor array manufactured by Signal Transformer, designed for surface mount applications. This component provides dual inductance configurations: 200.7 µH when coils are connected in series and 50 µH when connected in parallel, with a maximum DC resistance of 111 mOhm in parallel configuration and 444 mOhm in series configuration. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and design requirements.

Substiute Parts

SCX147-500

Signal TransformerIn Stock: 824SCX147-500 Datasheet

Current PartRFQ

CTX50-4-R

Eaton - Electronics DivisionIn Stock: 5366CTX50-4-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCX147-500 is based on strict electrical and mechanical parameter matching within the inductor array category. The primary substitute, CTX50-4-R, qualifies as an equivalent based on the following criteria:

Critical Matching Parameters:

• Dual-coil inductor array configuration (2 coils)
• Series inductance: 200.7 µH (exact match)
• Parallel inductance: 50.18 µH (within ±20% tolerance specification)
• Current rating - parallel: 1.5 A (exact match)
• Current rating - series: 750 mA (exact match)
• DC resistance - parallel: 111 mOhm Max (exact match)
• DC resistance - series: 443 mOhm Max (within specification)
• Unshielded configuration (exact match)
• Surface mount technology (exact match)
• Nonstandard package type (exact match)
• RoHS3 compliance (exact match)
• MSL Level 1 (exact match)

The CTX50-4-R maintains electrical performance within the defined tolerance band and preserves all critical functional parameters required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The CTX50-4-R is the qualified substitute for the obsolete SCX147-500 based on electrical parameter equivalence and active product status. The substitute maintains all critical electrical specifications including inductance values, current ratings, and DC resistance characteristics within the defined tolerance band.

Both components are RoHS3 compliant and carry MSL Level 1 classification, ensuring compatibility with standard manufacturing and storage requirements. The CTX50-4-R is currently in active production through Eaton - Electronics Division, providing supply continuity for applications previously using the SCX147-500.

Minor dimensional variations exist between the two components. The CTX50-4-R is slightly smaller in footprint (0.550" x 0.550" versus 0.567" x 0.567") and lower in height (0.250" versus 0.276"). These dimensional differences must be evaluated within the context of specific PCB layout constraints and mechanical clearance requirements for each application.

Frequently Asked Questions (FAQ)

Q: Can the CTX50-4-R be used as a direct replacement for the SCX147-500?

A: Yes, the CTX50-4-R qualifies as an electrical equivalent. Both components provide identical inductance values in series configuration (200.7 µH), matching current ratings (1.5 A parallel, 750 mA series), and equivalent DC resistance specifications. The parallel inductance of the CTX50-4-R (50.18 µH) falls within the ±20% tolerance band of the SCX147-500 (50 µH).

Q: What are the dimensional differences between these parts?

A: The CTX50-4-R has a slightly reduced footprint of 0.550" x 0.550" (13.97mm x 13.97mm) compared to the SCX147-500 at 0.567" x 0.567" (14.40mm x 14.40mm). The height is also reduced from 0.276" (7.00mm) to 0.250" (6.35mm). These differences are minor but must be considered for PCB layout compatibility.

Q: Are both parts RoHS compliant?

A: Yes, both the SCX147-500 and CTX50-4-R are ROHS3 compliant and carry MSL Level 1 classification, indicating unlimited moisture sensitivity protection.

Q: What is the availability status of each part?

A: The SCX147-500 is classified as obsolete with limited inventory (791 pieces). The CTX50-4-R is an active product with substantial inventory availability (5330 pieces) from Eaton - Electronics Division.

Q: Are there any DC resistance differences between the parts?

A: DC resistance specifications are essentially equivalent. The SCX147-500 specifies 444 mOhm Max in series configuration, while the CTX50-4-R specifies 443 mOhm Max. Both maintain 111 mOhm Max in parallel configuration.

Q: What packaging options are available for the substitute?

A: The CTX50-4-R is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.