CTX150-4 Equivalent & Substitute Parts Reference

Part Overview

The CTX150-4 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: 592.9 µH in series connection and 148.23 µH in parallel connection, with a maximum parallel DC resistance of 372 mOhm and 820 mA current rating in parallel mode.

The CTX150-4 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor array specification.

Substiute Parts

CTX150-4

Eaton - Electronics DivisionIn Stock: 662CTX150-4 Datasheet

Current PartRFQ

CTX150-4-R

Eaton - Electronics DivisionIn Stock: 2228CTX150-4-R Datasheet

DirectRFQ

4448-130L

API Delevan Inc.In Stock: 9394448-130L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CTX150-4 are identified based on strict electrical and mechanical parameter compatibility within the inductor array category. The substitution logic is organized into two categories:

Direct Manufacturer Equivalent (CTX150-4-R): This part maintains identical electrical specifications across all critical parameters: inductance values (592.9 µH series / 148.23 µH parallel), current ratings (410 mA series / 820 mA parallel), DC resistance (1.488 Ohm series / 372 mOhm parallel), tolerance (±20%), operating temperature range (-40°C ~ 85°C), and physical dimensions (13.97mm x 13.97mm x 6.35mm). The primary distinction is packaging format (Tape & Reel versus standard packaging) and product status (Active versus Obsolete).

Similar Manufacturer Alternative (4448-130L): This API Delevan Inc. part provides comparable electrical performance with minor parameter variations. The parallel inductance is 150 µH (versus 148.23 µH), series inductance is 600 µH (versus 592.9 µH), and tolerance is ±15% (versus ±20%). Current ratings and DC resistance specifications remain identical. Physical dimensions differ slightly (13.46mm x 13.46mm x 7.87mm versus 13.97mm x 13.97mm x 6.35mm), and operating temperature range extends to -55°C ~ 125°C. This part is suitable where minor inductance variation and extended temperature performance are acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (CTX150-4-R): Select this part when exact electrical and mechanical specifications are required and product status upgrade is acceptable. The CTX150-4-R maintains 100% parameter compatibility with the obsolete CTX150-4 while offering Active product status and ROHS3 compliance. This part is the preferred choice for new designs or production continuity where regulatory compliance is a requirement. Tape & Reel packaging is standard for high-volume surface mount assembly operations.

For Alternative Applications (4448-130L): Select this part when minor inductance tolerance variation (±15% versus ±20%) and extended operating temperature range (-55°C ~ 125°C) provide design advantages. The 4448-130L introduces inductance values within 1.2% of the CTX150-4 specification (150 µH parallel versus 148.23 µH, 600 µH series versus 592.9 µH). Physical dimension differences (13.46mm x 13.46mm x 7.87mm) require PCB layout verification. Moisture sensitivity level 5A requires controlled storage conditions (24-hour maximum floor life after bag opening). This part is suitable for applications where temperature performance enhancement justifies minor footprint variation and handling protocol changes.

Frequently Asked Questions (FAQ)

Q: Can CTX150-4-R be used as a direct drop-in replacement for CTX150-4?

A: Yes. The CTX150-4-R maintains identical electrical specifications (inductance, current rating, DC resistance, tolerance) and physical dimensions (13.97mm x 13.97mm x 6.35mm). The primary difference is packaging format (Tape & Reel) and product status (Active). No circuit redesign is required.

Q: What are the inductance tolerance implications when substituting with 4448-130L?

A: The 4448-130L provides ±15% tolerance versus the CTX150-4's ±20% tolerance. Parallel inductance is 150 µH (1.2% higher than 148.23 µH) and series inductance is 600 µH (1.2% higher than 592.9 µH). These variations fall within the original ±20% tolerance band and are acceptable for most applications. Circuit performance impact depends on specific inductance-dependent functions in the design.

Q: Are there PCB layout considerations when using 4448-130L instead of CTX150-4?

A: Yes. The 4448-130L footprint is 13.46mm x 13.46mm x 7.87mm compared to CTX150-4's 13.97mm x 13.97mm x 6.35mm. The height difference (7.87mm versus 6.35mm) may affect clearance in space-constrained applications. PCB layout verification is required before implementation.

Q: What is the moisture sensitivity impact of 4448-130L?

A: The 4448-130L carries MSL 5A (24-hour floor life) versus CTX150-4's MSL 1 (unlimited). After bag opening, the component must be used within 24 hours or returned to dry storage. This requires controlled handling procedures and inventory management protocols.

Q: Which substitute part is recommended for new designs?

A: CTX150-4-R is recommended for new designs. It provides identical electrical and mechanical specifications, Active product status, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1). These characteristics ensure long-term supply availability and regulatory compliance.

Q: Can both substitute parts be used interchangeably in the same production run?

A: No. CTX150-4-R and 4448-130L have different electrical specifications (inductance values differ by 1.2%), physical dimensions, and handling requirements. Using both parts in the same production run requires separate qualification and documentation. Select one part for consistent production batches.

Q: What is the current rating compatibility between CTX150-4 and its substitutes?

A: All three parts (CTX150-4, CTX150-4-R, 4448-130L) maintain identical current ratings: 820 mA in parallel configuration and 410 mA in series configuration. Current handling capability is fully compatible across all substitutes.

Q: Are there regulatory compliance differences between the substitute parts?

A: Yes. CTX150-4-R is ROHS3 compliant, while CTX150-4 and 4448-130L are RoHS non-compliant. For applications requiring RoHS compliance, CTX150-4-R is the only compliant option among the three parts.