CDRR105NP-331MC Equivalent & Substitute Parts

Part Overview

The CDRR105NP-331MC is a 330 µH shielded surface mount inductor manufactured by Sumida America Components Inc. This component is designed for applications requiring fixed inductance with moderate current handling capability and controlled DC resistance characteristics. The part operates across an industrial temperature range of -40°C to 125°C and maintains Active product status with full RoHS3 compliance. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit alternative electrical and mechanical specifications.

Substiute Parts

CDRR105NP-331MC

Sumida America Components Inc.In Stock: 1050CDRR105NP-331MC Datasheet

Current PartRFQ

B82476B1334M100

EPCOS - TDK ElectronicsIn Stock: 2018B82476B1334M100 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDRR105NP-331MC is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 330 µH (fixed requirement)
• Inductance tolerance: ±20% (fixed requirement)
• Current rating: minimum 610 mA (substitute must meet or exceed)
• DC resistance: maximum 848 mOhm (substitute must not exceed)
• Core material: Ferrite (fixed requirement)
• Mounting type: Surface Mount (fixed requirement)
• Operating temperature range: must encompass or extend the -40°C to 125°C range
• RoHS3 compliance: required for regulatory alignment

Secondary Compatibility Factors:

• Package type: Nonstandard (physical footprint compatibility required)
• Shielding characteristics: Shielded vs. Unshielded (application-dependent)
• Saturation current: substitute must support intended circuit operation

The B82476B1334M100 qualifies as a substitute based on matching inductance, tolerance, core material, mounting type, and RoHS3 compliance. Differences in shielding, current rating, DCR, and saturation current are within acceptable engineering parameters for equivalent component selection.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The B82476B1334M100 is electrically compatible with the CDRR105NP-331MC for applications where the following conditions are satisfied:

1. Electrical Performance: Both parts deliver 330 µH inductance at ±20% tolerance. The substitute provides superior current handling (650 mA vs. 610 mA) and saturation performance (600 mA vs. 440 mA), with lower DC resistance (810 mOhm vs. 848 mOhm). These characteristics represent improved electrical performance.

2. Temperature Operation: The substitute extends the operating range to -55°C to 150°C, encompassing the primary part's -40°C to 125°C specification. This provides broader thermal compatibility.

3. Regulatory Compliance: Both parts maintain RoHS3 compliance. The substitute carries additional AEC-Q200 automotive qualification and REACH Unaffected status, supporting applications with enhanced compliance requirements.

4. Physical Considerations: Footprint dimensions differ (10.40 x 10.40 mm vs. 12.95 x 9.40 mm) and height varies (4.80 mm vs. 5.08 mm). PCB layout and mechanical clearance must be evaluated before substitution.

5. Shielding Difference: The primary part is shielded; the substitute is unshielded. Applications sensitive to electromagnetic interference or requiring shielding for regulatory compliance must assess this difference against circuit requirements.

Substitution is appropriate when:

• PCB layout accommodates the different footprint dimensions
• Unshielded operation is acceptable for the application
• Enhanced current and temperature ratings provide design margin
• Automotive or extended compliance certifications are beneficial

Substitution requires design review when:

• EMI shielding is a critical design requirement
• PCB space constraints cannot accommodate the larger footprint
• Specific thermal or current profiles depend on the primary part's saturation characteristics

Frequently Asked Questions (FAQ)

Q: Can the B82476B1334M100 directly replace the CDRR105NP-331MC without PCB modification?

A: Direct replacement requires PCB layout compatibility. The substitute has a different footprint (12.95 x 9.40 mm vs. 10.40 x 10.40 mm) and slightly greater height (5.08 mm vs. 4.80 mm). PCB pad patterns and mechanical clearances must be verified before substitution.

Q: What is the primary difference between these two inductors?

A: The main difference is shielding: the CDRR105NP-331MC is shielded, while the B82476B1334M100 is unshielded. The substitute also features improved electrical performance (higher current rating, lower DCR) and extended temperature range. Shielding requirements depend on the application's EMI sensitivity.

Q: Are both parts actively manufactured?

A: Yes. Both the CDRR105NP-331MC and B82476B1334M100 maintain Active product status with current inventory availability.

Q: Does the substitute meet automotive standards?

A: The B82476B1334M100 carries AEC-Q200 qualification, making it suitable for automotive applications. The primary part does not list this certification.

Q: What happens if I use the substitute in a shielded application?

A: The unshielded substitute may not provide the same electromagnetic containment as the shielded primary part. Applications requiring shielding for EMI suppression or regulatory compliance should not substitute without circuit-level analysis.

Q: Is the higher current rating of the substitute a concern?

A: No. A higher current rating indicates improved capability and provides additional design margin. The substitute can safely operate at the primary part's 610 mA specification with reduced thermal stress.

Q: What is the saturation current difference, and does it matter?

A: The substitute has higher saturation current (600 mA vs. 440 mA). This means the substitute maintains inductance over a wider current range. For circuits operating near saturation, the substitute provides better performance stability.

Q: Are there any compliance differences between the two parts?

A: Both are RoHS3 compliant. The substitute additionally carries AEC-Q200 automotive qualification and REACH Unaffected status, providing broader regulatory coverage for specialized applications.

Q: Can I use the substitute in high-temperature environments?

A: Yes. The substitute operates to 150°C, exceeding the primary part's 125°C maximum. For applications requiring extended high-temperature operation, the substitute is suitable.

Q: What is the moisture sensitivity level, and is it the same for both parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling requirements are equivalent.