CDH53-180KC Equivalent & Substitute Parts

Part Overview

The CDH53-180KC is an 18 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 880 mA continuous current with a maximum DC resistance of 280 mOhm. This surface mount component operates across the temperature range of -30°C to 100°C and is designed for nonstandard package applications requiring fixed inductance in compact form factors.

The CDH53-180KC carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or repair requirements for systems utilizing this inductor specification.

Substiute Parts

CDH53-180KC

Sumida America Components Inc.In Stock: 786CDH53-180KC Datasheet

Current PartRFQ

CDH53NP-180KC

Sumida America Components Inc.In Stock: 937CDH53NP-180KC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDH53-180KC is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Inductance value: 18 µH
• Inductance tolerance: ±10%
• Current rating: 880 mA minimum
• DC resistance: 280 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Parameters (Must Match):

• Mounting type: Surface Mount
• Physical footprint: 6.00 mm × 5.20 mm × 3.20 mm (Max height)
• Package classification: Nonstandard

Test Conditions (Must Match):

• Inductance measurement frequency: 1 kHz

The CDH53NP-180KC qualifies as a direct substitute based on identical electrical specifications, core material, shielding, mounting configuration, and physical dimensions. Packaging format differences (Tape & Reel versus standard packaging) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

CDH53NP-180KC is the direct substitute for CDH53-180KC based on the following engineering criteria:

Electrical Compatibility: All electrical parameters are identical, including inductance value, tolerance, current rating, and DC resistance. The substitute maintains the same ferrite core material and unshielded configuration, ensuring equivalent electromagnetic performance in circuit applications.

Mechanical Compatibility: Physical dimensions and surface mount footprint are identical, enabling direct board-level replacement without layout modifications.

Product Status Advantage: The CDH53NP-180KC carries active product status, ensuring ongoing availability and supply chain support compared to the obsolete CDH53-180KC.

Compliance Enhancement: The substitute meets ROHS3 compliance standards, whereas the main part is non-compliant. This represents an improvement for applications subject to environmental or regulatory requirements.

Temperature Range: The substitute operates across -40°C to 100°C, providing a 10°C lower minimum operating temperature compared to the main part's -30°C to 100°C range. This extended range does not compromise compatibility and offers additional operational margin.

Packaging Consideration: The substitute is supplied in Tape & Reel format, which is standard for high-volume manufacturing and automated assembly processes. This packaging format does not affect component performance or board-level functionality.

Frequently Asked Questions (FAQ)

Q: Can CDH53NP-180KC be used as a direct replacement for CDH53-180KC in existing designs?

A: Yes. The CDH53NP-180KC is electrically and mechanically identical to the CDH53-180KC across all critical parameters: inductance (18 µH ±10%), current rating (880 mA), DC resistance (280 mOhm max), core material (ferrite), shielding (unshielded), and physical dimensions (6.00 mm × 5.20 mm × 3.20 mm max). No circuit modifications or board redesign is required.

Q: What is the difference between CDH53-180KC and CDH53NP-180KC packaging?

A: The main part uses standard packaging, while the substitute (CDH53NP-180KC) is supplied in Tape & Reel (TR) format. Tape & Reel packaging is designed for automated pick-and-place assembly and high-volume production. The component itself is identical; only the delivery and handling format differs.

Q: Does the wider operating temperature range of CDH53NP-180KC affect compatibility?

A: No. The substitute's operating range of -40°C to 100°C encompasses the main part's -30°C to 100°C specification. The extended lower temperature limit provides additional operational margin without introducing any compatibility issues.

Q: Is RoHS compliance a functional difference between these parts?

A: No. RoHS compliance is a material composition and manufacturing standard, not a functional electrical parameter. The CDH53NP-180KC's ROHS3 compliance indicates it meets current environmental standards and uses compliant materials. This is an advantage for applications subject to regulatory requirements but does not affect the inductor's electrical performance or circuit compatibility.

Q: Are there any electrical performance differences between the two parts?

A: No. Both parts are specified with identical inductance (18 µH ±10%), current rating (880 mA), DC resistance (280 mOhm max), and inductance test frequency (1 kHz). Electromagnetic performance is equivalent.

Q: Why is CDH53-180KC listed as obsolete?

A: The CDH53-180KC has reached end-of-life status. The CDH53NP-180KC is the active equivalent part from the same manufacturer and series, ensuring continued availability and supply chain support for this inductance specification.