CDH53-470KC Equivalent & Substitute Parts

Part Overview

The CDH53-470KC is a 47 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 530 mA continuous current with a maximum DC resistance of 770 mOhm. This component is designed for surface mount applications in nonstandard package configurations. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

CDH53-470KC

Sumida America Components Inc.In Stock: 1818CDH53-470KC Datasheet

Current PartRFQ

CDH53NP-470KC

Sumida America Components Inc.In Stock: 914CDH53NP-470KC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH53-470KC is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Inductance value: 47 µH (±10% tolerance maintained)
• Current rating: 530 mA minimum
• DC resistance: 770 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Equivalence Requirements:

• Mounting type: Surface mount
• Physical footprint: 6.00 mm × 5.20 mm × 3.20 mm maximum
• Package classification: Nonstandard

Environmental & Compliance Considerations:

• Operating temperature range must encompass or match the original specification
• Moisture sensitivity level: MSL 1 or better
• RoHS and REACH compliance status

The CDH53NP-470KC qualifies as a direct substitute based on identical electrical specifications, matching mechanical dimensions, and superior product status (active vs. obsolete). Packaging format differences (tape & reel vs. standard) do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CDH53NP-470KC

The CDH53NP-470KC is the recommended direct substitute for the obsolete CDH53-470KC. This selection is based on the following engineering criteria:

Electrical Compatibility: All critical electrical parameters are identical, including inductance value (47 µH), current rating (530 mA), and DC resistance (770 mOhm maximum). The component maintains the same ferrite core material and unshielded configuration, ensuring equivalent circuit performance.

Mechanical Compatibility: Physical dimensions are identical (6.00 mm × 5.20 mm × 3.20 mm), confirming direct footprint compatibility on existing PCB layouts designed for the CDH53-470KC.

Product Status & Availability: The CDH53NP-470KC is classified as active, ensuring ongoing availability and supply chain reliability. The CDH53-470KC is obsolete, making the substitute essential for continued production support.

Compliance Enhancement: The CDH53NP-470KC achieves ROHS3 compliance, whereas the original part is non-compliant. This upgrade aligns with current regulatory requirements for new designs and manufacturing environments.

Temperature Range: The substitute offers an extended operating temperature range (-40°C to 100°C) compared to the original (-30°C to 100°C), providing additional thermal margin for demanding applications.

Packaging Consideration: The substitute is supplied in tape & reel format, which is standard for high-volume production. If bulk or alternative packaging is required, contact the manufacturer directly.

Frequently Asked Questions (FAQ)

Q: Can the CDH53NP-470KC be used as a direct replacement for the CDH53-470KC in existing designs?

A: Yes. The CDH53NP-470KC is electrically and mechanically identical to the CDH53-470KC. All critical parameters—inductance, current rating, DC resistance, core material, dimensions, and mounting type—are equivalent. The substitute can be used without circuit redesign or PCB layout modification.

Q: What is the difference between the CDH53-470KC and CDH53NP-470KC?

A: The primary differences are product status, compliance certification, and packaging format. The CDH53-470KC is obsolete and RoHS non-compliant, while the CDH53NP-470KC is active and ROHS3 compliant. The substitute also features an extended operating temperature range (-40°C to 100°C vs. -30°C to 100°C). Both parts are supplied in nonstandard packages; the substitute uses tape & reel format.

Q: Are there any performance differences between these two parts?

A: No performance differences exist. Both inductors are rated for identical electrical specifications: 47 µH inductance at ±10% tolerance, 530 mA current rating, and 770 mOhm maximum DC resistance. Both use ferrite drum core construction and are unshielded. Measured inductance and DC resistance will fall within the same tolerance bands.

Q: Does the tape & reel packaging of the CDH53NP-470KC affect compatibility?

A: Tape & reel packaging is a supply format that does not affect component functionality or PCB compatibility. The physical component dimensions and mounting interface remain identical. Tape & reel format is standard for automated assembly processes and high-volume production.

Q: Is the extended temperature range of the CDH53NP-470KC a concern for existing designs?

A: No. An extended operating temperature range (-40°C to 100°C) is a specification enhancement, not a limitation. Designs qualified for the original range (-30°C to 100°C) will operate within the substitute's specification envelope without modification.

Q: What is the RoHS compliance status, and why does it matter?

A: The CDH53-470KC is RoHS non-compliant, while the CDH53NP-470KC is ROHS3 compliant. RoHS compliance is mandatory for products sold in the European Union and is increasingly required by OEMs globally. The substitute meets current regulatory requirements for new production and design certifications.

Q: Can I use the CDH53NP-470KC in applications originally designed for the CDH53-470KC?

A: Yes. The substitute meets or exceeds all electrical and mechanical requirements of the original part. No circuit analysis, testing, or design modification is required for direct substitution.

Q: What should I do if I need alternative packaging formats for the CDH53NP-470KC?

A: Contact Sumida America Components Inc. directly to inquire about alternative packaging options, minimum order quantities, and lead times for the CDH53NP-470KC.