CDH53-4R7MC Equivalent & Substitute Parts

Part Overview

The CDH53-4R7MC is a 4.7 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 1.68 A with a maximum DC resistance of 96 mOhm. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The part operates across a temperature range of -30°C to 100°C and is mounted as a surface mount device in a nonstandard package configuration.

Substiute Parts

CDH53-4R7MC

Sumida America Components Inc.In Stock: 731CDH53-4R7MC Datasheet

Current PartRFQ

CDH53NP-4R7MC

Sumida America Components Inc.In Stock: 1194CDH53NP-4R7MC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH53-4R7MC is determined by strict equivalence across the following critical parameters:

• Inductance Value: 4.7 µH with ±20% tolerance
• Current Rating: 1.68 A minimum
• DC Resistance: 96 mOhm maximum
• Core Type: Ferrite drum core, unshielded
• Mounting Configuration: Surface mount, nonstandard package
• Physical Footprint: 6.00 mm × 5.20 mm × 3.20 mm maximum height
• Test Frequency: 7.96 MHz

The substitute part CDH53NP-4R7MC meets all electrical and mechanical parameters required for direct substitution. This part maintains identical inductance, current rating, DC resistance, core material, and physical dimensions while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The CDH53NP-4R7MC is the direct equivalent substitute for the obsolete CDH53-4R7MC. Selection of this substitute is based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical inductance (4.7 µH), current rating (1.68 A), and DC resistance (96 mOhm maximum), ensuring functional compatibility in circuit applications.

Mechanical Compatibility: Physical dimensions and mounting configuration are identical, allowing direct PCB footprint compatibility without layout modifications.

Product Status: The CDH53NP-4R7MC is classified as active, ensuring continued availability and manufacturing support, whereas the main part is obsolete.

Compliance Enhancement: The substitute part is ROHS3 compliant, compared to the non-compliant status of the main part, meeting current regulatory requirements for electronic component procurement.

Temperature Range: The substitute part extends the lower operating temperature limit to -40°C, providing broader thermal operating capability while maintaining the upper limit at 100°C.

Packaging Format: The substitute is supplied in Tape & Reel (TR) format, supporting automated assembly processes, whereas the main part is supplied in bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can CDH53NP-4R7MC be used as a direct replacement for CDH53-4R7MC in existing designs?

A: Yes. The CDH53NP-4R7MC is electrically and mechanically equivalent to the CDH53-4R7MC. All critical parameters—inductance value, current rating, DC resistance, core material, shielding configuration, and physical dimensions—are identical. The substitute part can be used without circuit redesign or PCB layout modification.

Q: What are the key differences between these two parts?

A: The primary differences are product status, compliance certification, operating temperature range, and packaging format. The CDH53NP-4R7MC is an active product with ROHS3 compliance, operates from -40°C to 100°C (versus -30°C to 100°C), and is supplied in Tape & Reel format for automated assembly. The main part is obsolete and RoHS non-compliant.

Q: Are there any electrical performance differences between the main part and substitute?

A: No. Both parts are tested at 7.96 MHz and maintain identical inductance tolerance (±20%), current rating (1.68 A), and maximum DC resistance (96 mOhm). Electrical performance is equivalent.

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

A: No. The substitute part's extended lower temperature limit (-40°C versus -30°C) provides additional thermal capability without affecting operation within the original part's temperature range. This represents an enhancement rather than a limitation.

Q: What is the impact of the packaging format change from bulk to Tape & Reel?

A: The Tape & Reel format of the substitute part is compatible with automated pick-and-place assembly equipment, improving manufacturing efficiency. If manual assembly or bulk handling is required, the Tape & Reel format can be manually extracted without functional impact.

Q: Is the RoHS3 compliance of the substitute part a requirement for substitution?

A: RoHS3 compliance of the substitute part meets current regulatory standards for electronic component procurement in many jurisdictions. If the original design was RoHS non-compliant, the substitute part provides compliance upgrade capability.