CDH63NP-2R0MC Equivalent & Substitute Parts

Part Overview

The CDH63NP-2R0MC is a 2 µH unshielded wirewound surface mount inductor manufactured by Sumida America Components Inc. This component is rated for 2.3 A continuous current with a maximum DC resistance of 51 mOhm and operates at 100 kHz test frequency. The part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

CDH63NP-2R0MC

Sumida America Components Inc.In Stock: 983CDH63NP-2R0MC Datasheet

Current PartRFQ

CDRH5D14NP-2R0NC

Sumida America Components Inc.In Stock: 824CDRH5D14NP-2R0NC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH63NP-2R0MC is evaluated based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value must match: 2 µH
• Current rating must meet or exceed: 2.3 A
• DC resistance must not exceed the original specification to maintain circuit performance
• Saturation current (Isat) must support the application requirements

Mechanical Compatibility Criteria:

• Surface mount package type required
• Physical dimensions must be compatible with PCB layout constraints
• Height clearance must not exceed original seated height where space is critical

Regulatory & Environmental Criteria:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) acceptable

The CDRH5D14NP-2R0NC qualifies as a substitute based on matching inductance value (2 µH), exceeding current rating (3.1 A vs. 2.3 A), lower DC resistance (33.8 mOhm vs. 51 mOhm), and identical RoHS/MSL compliance. The primary design difference is shielding type (shielded vs. unshielded) and core material (ferrite vs. unspecified), which must be evaluated for electromagnetic interference considerations in the specific application circuit.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CDRH5D14NP-2R0NC

The CDRH5D14NP-2R0NC is the designated substitute for the obsolete CDH63NP-2R0MC. Selection is based on the following engineering factors:

Electrical Performance: The substitute provides superior electrical characteristics with 3.1 A current rating (35% higher than the original 2.3 A specification) and reduced DC resistance of 33.8 mOhm compared to 51 mOhm. This results in lower power dissipation and improved thermal performance in the application circuit. Both components are tested at identical 100 kHz frequency.

Compliance & Availability: The CDRH5D14NP-2R0NC maintains ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing and environmental standards. The substitute is classified as active product status with confirmed inventory availability (725 Pcs), providing supply chain continuity compared to the obsolete original part.

Design Considerations: The substitute features shielding (ferrite core) versus the original unshielded design. In applications where electromagnetic interference rejection is beneficial, the shielded design provides additional performance margin. The reduced height (0.059" vs. 0.114") and slightly smaller footprint (6.10mm x 5.80mm vs. 6.30mm x 6.10mm) offer improved PCB layout flexibility. The inductance tolerance widens from ±20% to ±30%, which must be evaluated against circuit design margins.

Saturation Current Consideration: The substitute saturation current (2.4 A) is slightly lower than the original (2.6 A). In applications operating near saturation limits, this parameter requires circuit-level verification to ensure adequate margin.

Frequently Asked Questions (FAQ)

Q: Can the CDRH5D14NP-2R0NC directly replace the CDH63NP-2R0MC in all applications?

A: Direct substitution is supported for applications where the inductance value of 2 µH is the primary functional requirement and the circuit operates below 2.3 A continuous current. The shielded design of the substitute may alter electromagnetic coupling characteristics in sensitive circuits. Verification is required for applications with tight inductance tolerance requirements (the substitute tolerance is ±30% versus ±20% original).

Q: What is the impact of the shielding difference?

A: The CDH63NP-2R0MC is unshielded wirewound, while the CDRH5D14NP-2R0NC is shielded with ferrite core. Shielding reduces radiated electromagnetic interference and susceptibility to external fields. In circuits sensitive to EMI coupling, the shielded substitute may provide improved performance. In circuits where unshielded operation is specifically required, this difference must be addressed at the design level.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The substitute is slightly smaller (6.10mm x 5.80mm vs. 6.30mm x 6.10mm footprint) and significantly lower in height (1.50mm vs. 2.90mm). These dimensions are compatible with standard surface mount assembly processes. PCB layout verification is recommended to confirm clearance with adjacent components, particularly in high-density designs.

Q: What is the significance of the lower DC resistance in the substitute?

A: The CDRH5D14NP-2R0NC exhibits 33.8 mOhm DCR compared to 51 mOhm in the original. Lower resistance reduces I²R power dissipation and thermal generation. For applications operating at or near the 2.3 A current rating, the substitute provides improved thermal performance and reduced voltage drop across the inductor.

Q: How does the inductance tolerance difference affect circuit design?

A: The original CDH63NP-2R0MC specifies ±20% tolerance, while the substitute CDRH5D14NP-2R0NC specifies ±30%. Circuits with tight inductance requirements (such as resonant frequency-dependent applications) must verify that the wider tolerance of the substitute remains within acceptable performance margins. Inductance testing at 100 kHz is specified for both components.

Q: Is the substitute suitable for high-temperature applications?

A: The CDRH5D14NP-2R0NC specifies operating temperature range of -40°C to 105°C. The original CDH63NP-2R0MC does not provide operating temperature specification. For applications requiring temperature-dependent performance data, the substitute's specified range provides defined operating limits.

Q: What packaging format is available for the substitute?

A: The CDRH5D14NP-2R0NC is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly. The original part packaging format is not specified. TR packaging is compatible with automated pick-and-place assembly equipment.