CDH53-330KC Equivalent & Substitute Parts

Part Overview

The CDH53-330KC is a 33 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 670 mA continuous current with a maximum DC resistance of 490 mOhm. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

CDH53-330KC

Sumida America Components Inc.In Stock: 1134CDH53-330KC Datasheet

Current PartRFQ

CDH53NP-330KC

Sumida America Components Inc.In Stock: 967CDH53NP-330KC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH53-330KC is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance value: 33 µH at 1 kHz test frequency
• Inductance tolerance: ±10%
• Current rating: 670 mA minimum
• DC resistance: 490 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Equivalence Criteria:

• Mounting type: Surface mount
• Physical footprint: 6.00mm x 5.20mm x 3.20mm maximum height
• Package type: Nonstandard drum core configuration

The CDH53NP-330KC meets all electrical and mechanical equivalence requirements and is therefore classified as a direct substitute for the obsolete CDH53-330KC.

Parameter Comparison

Engineering Selection Recommendations

The CDH53NP-330KC is the direct functional equivalent of the obsolete CDH53-330KC. Selection of the CDH53NP-330KC is based on the following engineering factors:

Product Status: The CDH53-330KC is classified as obsolete. The CDH53NP-330KC maintains active product status with Sumida America Components Inc., ensuring continued availability and manufacturing support.

Regulatory Compliance: The CDH53NP-330KC achieves ROHS3 compliance, whereas the original CDH53-330KC is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in most markets.

Electrical and Mechanical Compatibility: All electrical parameters (inductance, current rating, DC resistance, core material, shielding) and mechanical parameters (dimensions, mounting type, operating temperature range) are identical between the two parts. Direct substitution is electrically and mechanically valid.

Packaging Consideration: The CDH53NP-330KC is supplied in Tape & Reel (TR) format, whereas the original part was supplied in bulk packaging. This packaging difference does not affect electrical or mechanical performance and is standard for active production components.

Frequently Asked Questions (FAQ)

Q: Can the CDH53NP-330KC be used as a direct replacement for the CDH53-330KC in existing designs?

A: Yes. The CDH53NP-330KC is electrically and mechanically identical to the CDH53-330KC. All critical parameters including inductance value, current rating, DC resistance, core material, shielding, dimensions, and operating temperature range are equivalent. Direct substitution is valid.

Q: What is the difference between the CDH53-330KC and CDH53NP-330KC?

A: The primary differences are product status and regulatory compliance. The CDH53-330KC is obsolete and RoHS non-compliant. The CDH53NP-330KC is an active product that meets ROHS3 compliance standards. Packaging format differs (bulk versus Tape & Reel), but this does not affect component performance.

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

A: No. Both parts have identical electrical specifications: 33 µH inductance at ±10% tolerance, 670 mA current rating, 490 mOhm maximum DC resistance, ferrite core material, and unshielded configuration. Both are tested at 1 kHz.

Q: Does the Tape & Reel packaging of the CDH53NP-330KC affect its performance?

A: No. Packaging format (Tape & Reel versus bulk) is a logistics and handling consideration only. It does not affect the electrical or mechanical performance of the component.

Q: Is the CDH53NP-330KC suitable for applications requiring RoHS compliance?

A: Yes. The CDH53NP-330KC is ROHS3 compliant, making it suitable for applications and markets with RoHS compliance requirements. The original CDH53-330KC is not RoHS compliant.

Q: What is the physical footprint compatibility between these parts?

A: Both parts have identical physical dimensions of 6.00mm length x 5.20mm width x 3.20mm maximum seated height. Footprint compatibility is complete.

Q: Can I use the CDH53NP-330KC in high-temperature applications?

A: Yes. The CDH53NP-330KC operates across the temperature range of -40°C to 100°C, identical to the original CDH53-330KC. This range supports standard industrial and commercial applications.