CDRH62NP-331MC Equivalent & Substitute Parts

Part Overview

The CDRH62NP-331MC is a 330 µH unshielded surface mount inductor manufactured by Sumida America Components Inc. with a current rating of 180 mA and maximum DC resistance of 5.42Ohm. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 100°C and complies with ROHS3 standards with MSL rating of 1 (Unlimited).

Substiute Parts

CDRH62NP-331MC

Sumida America Components Inc.In Stock: 1032CDRH62NP-331MC Datasheet

Current PartRFQ

SPD62R-334M

API Delevan Inc.In Stock: 1152SPD62R-334M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDRH62NP-331MC is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 330 µH (±20% tolerance band)
• Inductance test frequency: 1 kHz
• Mounting type: Surface Mount
• Package dimensions: 6.60 x 6.20 x 3.00 mm (length x width x height)
• RoHS compliance status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 180 mA
• DC resistance: Substitute must equal or be lower than 5.42Ohm
• Operating temperature range: Substitute must cover or exceed -40°C to 100°C
• Shielding type: May differ (shielded or unshielded) based on circuit requirements
• Core material: May vary (ferrite, iron powder, etc.)

The SPD62R-334M from API Delevan Inc. qualifies as a substitute based on matching inductance, tolerance, package dimensions, mounting type, and compliance certifications while providing improved electrical performance in current rating and DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The SPD62R-334M qualifies as a direct substitute for the CDRH62NP-331MC based on the following engineering criteria:

Compliance & Availability: The SPD62R-334M maintains ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring regulatory alignment with the original part. The substitute is classified as Active product status, providing assured long-term availability and supply chain continuity compared to the obsolete CDRH62NP-331MC.

Electrical Performance: Both parts maintain identical inductance values of 330 µH at ±20% tolerance and are tested at 1 kHz. The SPD62R-334M provides superior electrical characteristics with a current rating of 220 mA (exceeding the original 180 mA requirement) and reduced DC resistance of 3.3Ohm (compared to 5.42Ohm maximum). These improvements result in lower power dissipation and enhanced thermal performance in the application circuit.

Mechanical & Thermal Compatibility: Package dimensions are identical at 6.60 x 6.20 x 3.00 mm, ensuring direct PCB footprint compatibility. The SPD62R-334M extends the operating temperature range to -55°C to 125°C, providing broader environmental coverage than the original -40°C to 100°C specification.

Shielding Consideration: The substitute part features shielding (Drum Core, Wirewound) compared to the unshielded original. In applications where electromagnetic interference rejection is beneficial, this represents an improvement. In circuits sensitive to shielding effects, circuit validation is necessary to confirm functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the SPD62R-334M be used as a direct replacement for CDRH62NP-331MC in existing designs?

A: Yes, the SPD62R-334M qualifies as a substitute based on matched inductance (330 µH), tolerance (±20%), package dimensions (6.60 x 6.20 x 3.00 mm), mounting type (Surface Mount), and compliance certifications (ROHS3, MSL 1). The substitute provides equal or superior electrical performance with higher current rating (220 mA vs. 180 mA) and lower DC resistance (3.3Ohm vs. 5.42Ohm).

Q: What is the primary difference between the CDRH62NP-331MC and SPD62R-334M?

A: The main difference is shielding type: the original is unshielded while the substitute features shielded drum core construction with ferrite material. Both parts maintain identical inductance values and package dimensions. The substitute offers improved current handling and reduced DC resistance.

Q: Are there any compatibility concerns with the shielded substitute in an unshielded design?

A: Shielding provides electromagnetic interference rejection, which is generally beneficial. However, circuit-specific validation is recommended if the original design relied on unshielded characteristics or if the application involves sensitive analog signal paths where shielding effects require evaluation.

Q: What is the temperature operating range difference?

A: The CDRH62NP-331MC operates from -40°C to 100°C, while the SPD62R-334M operates from -55°C to 125°C. The substitute provides extended temperature coverage, making it suitable for applications requiring broader thermal performance.

Q: Why is the CDRH62NP-331MC listed as obsolete?

A: The CDRH62NP-331MC is classified as obsolete by the manufacturer. The SPD62R-334M, classified as Active product status, ensures continued availability and supply chain reliability for new designs and production continuity.

Q: Are both parts RoHS compliant?

A: Yes, both the CDRH62NP-331MC and SPD62R-334M are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and regulatory requirements.

Q: What is the significance of the ±20% inductance tolerance?

A: Both parts share ±20% inductance tolerance, meaning the actual inductance value may vary between 264 µH and 396 µH. This tolerance band is identical for both components, ensuring equivalent circuit behavior within specified limits.

Q: Can the SPD62R-334M handle higher current than required?

A: Yes, the SPD62R-334M is rated for 220 mA compared to the original 180 mA requirement. Operating at lower current than the rated maximum improves reliability and thermal performance.