CDH63NP-5R6MC Equivalent & Substitute Parts

Part Overview

The CDH63NP-5R6MC is a 5.6 µH unshielded wirewound inductor manufactured by Sumida America Components Inc., rated for 1.35 A continuous current with a maximum DC resistance of 136 mOhm. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. The part is surface-mounted in a nonstandard package and complies with ROHS3 standards.

Substiute Parts

CDH63NP-5R6MC

Sumida America Components Inc.In Stock: 1072CDH63NP-5R6MC Datasheet

Current PartRFQ

SDR0703-5R6ML

Bourns Inc.In Stock: 1033SDR0703-5R6ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH63NP-5R6MC is determined by the following critical parameters:

Inductance Value: 5.6 µH at 100 kHz test frequency with ±20% tolerance establishes the primary electrical requirement.

Current Ratings: The continuous current rating of 1.35 A and saturation current of 1.6 A define the thermal and magnetic operating envelope. Substitute parts must meet or exceed these specifications.

DC Resistance: Maximum DCR of 136 mOhm establishes the power dissipation and efficiency baseline. Lower DCR values in substitutes provide improved performance.

Shielding Configuration: Unshielded topology must be maintained to preserve electromagnetic coupling characteristics in the original circuit design.

Mounting and Package: Surface mount configuration with nonstandard package dimensions requires physical compatibility verification.

Compliance Standards: ROHS3 compliance and MSL 1 rating are mandatory for procurement and environmental requirements.

The SDR0703-5R6ML from Bourns Inc. qualifies as a substitute based on matching inductance value, tolerance, shielding type, mounting method, and compliance certifications while providing superior current handling and lower DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The SDR0703-5R6ML is the qualified substitute for the obsolete CDH63NP-5R6MC based on the following engineering criteria:

Electrical Equivalence: Both components provide 5.6 µH inductance at 100 kHz with identical ±20% tolerance. The SDR0703-5R6ML exceeds the current rating requirement with 1.4 A continuous and 2.0 A saturation current versus 1.35 A and 1.6 A respectively.

Performance Enhancement: The SDR0703-5R6ML delivers 31 mOhm lower DC resistance (105 mOhm maximum versus 136 mOhm), resulting in reduced power dissipation and improved thermal performance.

Compliance Alignment: Both components maintain ROHS3 compliance and MSL 1 rating, satisfying environmental and moisture handling requirements.

Product Status: The transition from obsolete to active product status ensures long-term availability and supply chain continuity for the SDR0703-5R6ML.

Physical Considerations: Package dimensions differ slightly (SDR0703-5R6ML: 6.50mm L × 4.50mm W × 2.70mm H versus CDH63NP-5R6MC: 6.30mm L × 6.10mm W × 2.90mm H). PCB layout verification is required to confirm mechanical fit within the original design envelope.

Frequently Asked Questions (FAQ)

Q: Can the SDR0703-5R6ML directly replace the CDH63NP-5R6MC without circuit modification?

A: Electrical substitution is valid based on matching inductance value, tolerance, and current ratings. Physical PCB layout verification is necessary due to package dimension differences. No circuit modifications are required if mechanical fit is confirmed.

Q: What is the significance of the lower DC resistance in the SDR0703-5R6ML?

A: The 31 mOhm reduction in maximum DC resistance (from 136 mOhm to 105 mOhm) decreases resistive losses and heat generation at rated current, improving overall circuit efficiency and component reliability.

Q: Are both components suitable for the same operating temperature range?

A: The CDH63NP-5R6MC operating temperature is not specified in available documentation. The SDR0703-5R6ML operates across -40°C to 125°C. Temperature compatibility must be verified against the original circuit requirements.

Q: What packaging differences exist between these components?

A: The CDH63NP-5R6MC uses nonstandard packaging without specified supplier device package details. The SDR0703-5R6ML is supplied in Tape & Reel (TR) format, standard for automated assembly processes.

Q: Do both components meet current environmental compliance standards?

A: Yes. Both the CDH63NP-5R6MC and SDR0703-5R6ML are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), meeting current environmental and handling requirements.

Q: What is the basis for substitution between these two inductors?

A: Substitution is based on identical inductance value (5.6 µH), matching tolerance (±20%), equivalent or superior current ratings, unshielded configuration, surface mount technology, and compliance certifications. The SDR0703-5R6ML provides enhanced performance specifications while maintaining electrical compatibility.