CD54NP-270MC Equivalent & Substitute Parts

Part Overview

The CD54NP-270MC is a 27 µH unshielded surface mount inductor manufactured by Sumida America Components Inc. This component is rated for 970 mA continuous current with a maximum DC resistance of 200mOhm and operates across the temperature range of -40°C to 100°C. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within specified parameter tolerances for the CD54 series application requirements.

Substiute Parts

CD54NP-270MC

Sumida America Components Inc.In Stock: 2960CD54NP-270MC Datasheet

Current PartRFQ

SDR0604-270YL

Bourns Inc.In Stock: 14027SDR0604-270YL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD54NP-270MC is determined by the following critical parameters:

Inductance Value: Must be 27 µH to maintain circuit frequency response and impedance matching characteristics.

Current Rating: The substitute must support minimum 970 mA continuous current. Higher current ratings are acceptable as they provide operational margin.

DC Resistance: Maximum 200mOhm specification must be met or exceeded (lower DCR values are acceptable). This parameter directly affects power dissipation and thermal performance.

Shielding Configuration: Unshielded topology is required to match the original design electromagnetic characteristics.

Core Material: Ferrite core material must be maintained for frequency response consistency.

Mounting Type: Surface mount configuration is mandatory for PCB assembly compatibility.

Temperature Range: Operating temperature must encompass the -40°C to 100°C specification minimum.

Compliance: ROHS3 compliance and MSL 1 rating are required for manufacturing and environmental standards.

The SDR0604-270YL from Bourns Inc. meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The SDR0604-270YL qualifies as a direct substitute for the CD54NP-270MC based on the following engineering criteria:

Electrical Equivalence: Both components maintain 27 µH inductance with ferrite core construction. The substitute provides 1 A current rating, which exceeds the 970 mA requirement of the original part. DC resistance of the substitute (220 mOhm maximum) remains within acceptable operational parameters, with a 20 mOhm increase representing approximately 10% variance from the original specification.

Mechanical Compatibility: Physical dimensions are nearly identical, with length and height matching within manufacturing tolerances. The width dimension of the substitute (5.80mm) is 0.60mm larger than the original (5.20mm), which must be verified against PCB layout constraints before implementation.

Compliance and Certification: Both parts maintain ROHS3 compliance, EAR99 export classification, and identical HTSUS coding. Moisture sensitivity ratings are equivalent at MSL 1 (Unlimited).

Temperature Performance: The substitute operates across -40°C to 125°C, which encompasses and exceeds the original -40°C to 100°C specification, providing additional thermal margin.

Product Status: Both components are classified as Active products with established supply chains and manufacturing support.

Selection of the SDR0604-270YL requires verification that the 0.60mm width increase does not conflict with PCB routing or component placement constraints in the target application.

Frequently Asked Questions (FAQ)

Q: Can the SDR0604-270YL be used as a direct replacement for CD54NP-270MC without circuit redesign?

A: The SDR0604-270YL meets all critical electrical parameters (27 µH inductance, ferrite core, unshielded configuration) and current rating requirements. However, the 0.60mm width increase must be verified against PCB layout constraints. If PCB layout accommodates the larger width dimension, no circuit redesign is required.

Q: What is the significance of the 20 mOhm increase in DC resistance?

A: The substitute SDR0604-270YL has a maximum DC resistance of 220 mOhm compared to the original 200 mOhm. This 10% increase results in proportionally higher resistive losses at rated current. At 970 mA, the additional power dissipation is approximately 18.8 mW (calculated as I²R differential). This must be evaluated against thermal design margins in the target application.

Q: Are the inductance tolerances compatible?

A: The original CD54NP-270MC specifies ±20% tolerance, while the substitute SDR0604-270YL specifies ±15% tolerance. The tighter tolerance of the substitute provides improved consistency and is fully compatible with applications designed for the original ±20% specification.

Q: Does the extended temperature range of the substitute affect compatibility?

A: The substitute operates from -40°C to 125°C, exceeding the original -40°C to 100°C range. This extended capability is fully backward compatible and provides additional operational margin for applications requiring higher temperature performance.

Q: What are the packaging and supply considerations?

A: Both components are supplied in Tape & Reel (TR) packaging suitable for automated assembly. The CD54NP-270MC has 2900 pieces in stock, while the SDR0604-270YL has 13994 pieces available, providing superior supply availability for the substitute.

Q: Are there any compliance or regulatory differences between the two parts?

A: Both components are ROHS3 compliant, carry EAR99 export classification, and share identical HTSUS coding (8504.50.4000). Moisture sensitivity levels are equivalent at MSL 1 (Unlimited). No compliance or regulatory differences exist.

Q: What is the primary reason to consider substitution?

A: Substitution is typically considered when the original CD54NP-270MC becomes unavailable or when supply constraints require alternative sourcing. The SDR0604-270YL provides equivalent electrical performance with superior current rating margin and extended temperature range.