CTX5-2 Equivalent & Substitute Parts

Part Overview

The CTX5-2 is an unshielded 2-coil inductor array manufactured by Eaton - Electronics Division in the OCTA-PAC® series. This surface-mount component provides dual inductance configurations: 18.8 µH when coils are connected in series and 4.7 µH when connected in parallel. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and design continuity. Substitution is necessary to ensure supply chain reliability and access to components with current manufacturing support and compliance certifications.

Substiute Parts

CTX5-2

Eaton - Electronics DivisionIn Stock: 729CTX5-2 Datasheet

Current PartRFQ

CTX5-2-R

Eaton - Electronics DivisionIn Stock: 1631CTX5-2-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CTX5-2 is based on strict electrical and mechanical parameter matching within the Eaton OCTA-PAC® inductor array product line. The substitute part CTX5-2-R maintains identical electrical specifications across all critical parameters: dual-coil configuration, inductance values in both series and parallel modes, current ratings, DC resistance characteristics, operating temperature range, and physical dimensions. Both parts are unshielded, surface-mount components with nonstandard packaging and identical tolerance specifications.

The primary distinction between CTX5-2 and CTX5-2-R is product status and packaging format. The CTX5-2 is classified as obsolete and supplied in standard packaging, while CTX5-2-R is an active product available in Tape & Reel (TR) format. This packaging difference does not affect electrical or mechanical compatibility; it reflects manufacturing and supply chain practices for active versus discontinued products.

Substitution is valid when the following parameters are matched:

• Number of coils: 2
• Inductance values: 4.7 µH (parallel) and 18.8 µH (series)
• Current ratings: 3 A (parallel) and 1.5 A (series)
• DC resistance specifications: 21 mOhm max (parallel) and 84 mOhm max (series)
• Tolerance: ±20%
• Shielding type: Unshielded
• Operating temperature: -40°C to 85°C
• Physical dimensions: 0.450" x 0.450" x 0.235" height
• Mounting type: Surface Mount

Parameter Comparison

Engineering Selection Recommendations

The CTX5-2-R is the direct active equivalent of the obsolete CTX5-2 inductor array. All electrical and mechanical parameters are identical, ensuring functional compatibility in existing circuit designs without modification. The CTX5-2-R is manufactured by the same supplier (Eaton - Electronics Division) within the same OCTA-PAC® series and maintains the same physical footprint and performance characteristics.

Selection of CTX5-2-R over CTX5-2 is recommended based on product status: CTX5-2-R is an active product with ongoing manufacturing support, while CTX5-2 is obsolete. The CTX5-2-R is available in Tape & Reel (TR) packaging format, which is standard for high-volume production environments and automated assembly processes.

An additional consideration is regulatory compliance: CTX5-2-R is ROHS3 compliant, whereas CTX5-2 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, CTX5-2-R is the appropriate selection.

No electrical redesign or circuit modification is required when substituting CTX5-2 with CTX5-2-R. The components are pin-compatible and functionally equivalent across all specified operating conditions.

Frequently Asked Questions (FAQ)

Q: Can CTX5-2-R be used as a direct replacement for CTX5-2 in existing designs?

A: Yes. CTX5-2-R is electrically and mechanically identical to CTX5-2. All inductance values, current ratings, DC resistance specifications, operating temperature range, and physical dimensions are identical. No circuit modification is required.

Q: What is the difference between CTX5-2 and CTX5-2-R?

A: The primary differences are product status and packaging format. CTX5-2 is obsolete and supplied in standard packaging; CTX5-2-R is an active product available in Tape & Reel (TR) format. Additionally, CTX5-2-R is ROHS3 compliant while CTX5-2 is RoHS non-compliant.

Q: Does the Tape & Reel (TR) packaging of CTX5-2-R affect compatibility?

A: No. Tape & Reel packaging is a supply and handling format used for automated assembly processes. It does not affect the electrical performance or mechanical compatibility of the component. The actual component specifications and physical dimensions remain identical.

Q: Are there any performance differences between CTX5-2 and CTX5-2-R?

A: No. Both components have identical electrical specifications: 4.7 µH parallel inductance, 18.8 µH series inductance, 3 A parallel current rating, 1.5 A series current rating, 21 mOhm max parallel DCR, 84 mOhm max series DCR, ±20% tolerance, and -40°C to 85°C operating temperature range.

Q: Why is CTX5-2 listed as obsolete?

A: CTX5-2 is no longer in active production. CTX5-2-R is the current active equivalent manufactured by Eaton - Electronics Division. For new designs and ongoing production, CTX5-2-R should be specified.

Q: Is RoHS compliance a factor in selecting between these parts?

A: Yes, if your application or customer requirements mandate RoHS compliance. CTX5-2-R is ROHS3 compliant, while CTX5-2 is RoHS non-compliant. For regulated applications, CTX5-2-R is the required selection.

Q: Can both coils in the CTX5-2-R be used independently?

A: The CTX5-2-R is a 2-coil inductor array with specified inductance values for series and parallel configurations. Use the component according to the electrical configuration specified in your circuit design: 18.8 µH for series connection or 4.7 µH for parallel connection.

Q: What is the Moisture Sensitivity Level (MSL) for CTX5-2-R?

A: The MSL is 1 (Unlimited), indicating the component has unlimited shelf life and does not require special moisture control during storage or handling.