CDRH3D28NP-470NC Equivalent & Substitute Parts

Part Overview

The CDRH3D28NP-470NC is a 47 µH shielded inductor manufactured by Sumida America Components Inc., designed for surface mount applications requiring fixed inductance in compact form factors. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific requirements within the specified parameter ranges.

Substiute Parts

CDRH3D28NP-470NC

Sumida America Components Inc.In Stock: 806CDRH3D28NP-470NC Datasheet

Current PartRFQ

SRU3028-470Y

Bourns Inc.In Stock: 2647SRU3028-470Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDRH3D28NP-470NC is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 47 µH (with ±30% tolerance allowance)
• Inductance test frequency: 100 kHz
• Shielding classification: Shielded
• Core material: Ferrite
• Mounting type: Surface Mount
• Package classification: Nonstandard

Secondary Compatibility Factors:

• Current rating must support the application's maximum current requirement
• DC resistance must be within acceptable limits for the circuit design
• Operating temperature range must encompass the application environment
• RoHS and MSL compliance must meet regulatory requirements

The SRU3028-470Y qualifies as a substitute based on matching inductance value, tolerance, shielding type, core material, and mounting configuration. Differences in current rating, saturation current, and DC resistance are noted for engineering evaluation within specific application contexts.

Parameter Comparison

Engineering Selection Recommendations

CDRH3D28NP-470NC (Primary Component):

• Active product status with established supply chain
• ROHS3 compliant and MSL Level 1 rated
• Higher current rating (560 mA) and saturation current (480 mA) support higher-power applications
• Lower DC resistance (599 mOhm) reduces power dissipation
• Operating temperature range: -40°C to 105°C
• Suitable for applications requiring maximum current capacity within the 47 µH inductance class

SRU3028-470Y (Substitute Component):

• Active product status with alternative supply availability
• ROHS3 compliant and MSL Level 1 rated
• Lower current rating (320 mA) and saturation current (380 mA) limit application scope
• Higher DC resistance (815 mOhm) increases power dissipation
• Extended operating temperature range: -40°C to 125°C provides thermal margin
• Suitable for lower-current applications or environments requiring extended temperature operation
• Slightly smaller footprint (3.50 x 3.30 mm vs. 3.80 x 3.80 mm) may provide PCB layout advantages

Selection between these components depends on application current requirements, thermal dissipation constraints, and operating environment specifications.

Frequently Asked Questions (FAQ)

Q: Can the SRU3028-470Y replace the CDRH3D28NP-470NC in all applications?

A: No. The SRU3028-470Y has a lower current rating (320 mA vs. 560 mA) and lower saturation current (380 mA vs. 480 mA). Substitution is valid only for applications where the circuit current does not exceed 320 mA continuous operation and 380 mA saturation threshold.

Q: What is the impact of the higher DC resistance in the SRU3028-470Y?

A: The SRU3028-470Y exhibits 815 mOhm DC resistance compared to 599 mOhm in the CDRH3D28NP-470NC. This 216 mOhm difference results in increased power dissipation proportional to the square of the current. For a 300 mA circuit, this represents approximately 19.4 mW additional dissipation in the substitute part.

Q: Are there physical compatibility concerns between these parts?

A: Both components are surface mount, nonstandard package inductors with identical height (3.00 mm). The SRU3028-470Y has a slightly smaller footprint (3.50 x 3.30 mm vs. 3.80 x 3.80 mm). PCB land pattern compatibility must be verified for each specific application.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CDRH3D28NP-470NC and SRU3028-470Y are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating. Both are classified as EAR99 for export control purposes.

Q: What is the significance of the extended temperature range in the SRU3028-470Y?

A: The SRU3028-470Y operates to 125°C versus 105°C for the CDRH3D28NP-470NC. This 20°C additional margin may be beneficial in high-ambient or high-dissipation environments, provided the lower current rating is acceptable for the application.

Q: How do the inductance tolerances compare?

A: Both components specify ±30% inductance tolerance at 100 kHz test frequency. Tolerance performance is equivalent between the two parts.