CDEP106NP-1R2MC-50 Equivalent & Substitute Parts

Part Overview

The CDEP106NP-1R2MC-50 is a 1.2 µH shielded drum core, wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 13.5 A continuous current with a maximum DC resistance of 3.44 mOhm and operates across the temperature range of -40°C to 105°C. The part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity.

Substiute Parts

CDEP106NP-1R2MC-50

Sumida America Components Inc.In Stock: 804CDEP106NP-1R2MC-50 Datasheet

Current PartRFQ

CDEP134NP-1R2MC-H

Sumida America Components Inc.In Stock: 3222CDEP134NP-1R2MC-H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDEP106NP-1R2MC-50 is determined by the following critical parameters:

Inductance Value: The substitute part must maintain 1.2 µH inductance with ±20% tolerance to ensure circuit functionality.

Current Rating: The substitute must support the required continuous current load. The CDEP106NP-1R2MC-50 requires 13.5 A minimum rating.

Saturation Current: The substitute saturation current must not fall below the application's peak current requirements to prevent core saturation and performance degradation.

DC Resistance: The substitute DCR must remain within acceptable limits to minimize power loss and thermal effects in the circuit.

Core Material and Shielding: Both the main part and substitute utilize ferrite core material with shielding, ensuring electromagnetic compatibility characteristics remain consistent.

Operating Temperature Range: The substitute must support the required temperature envelope for the application.

Mounting and Package Compatibility: Both parts are surface mount components with nonstandard packages, requiring mechanical fit verification in the target application.

Compliance Standards: RoHS3 compliance and MSL rating must be maintained for manufacturing and environmental requirements.

Parameter Comparison

Engineering Selection Recommendations

The CDEP134NP-1R2MC-H qualifies as a functional substitute for the obsolete CDEP106NP-1R2MC-50 based on the following engineering criteria:

Electrical Equivalence: Both inductors maintain identical 1.2 µH inductance values with ±20% tolerance. The CDEP134NP-1R2MC-H provides higher current rating (15 A versus 13.5 A) and saturation current (21 A versus 19.2 A), ensuring adequate performance margin for the original application.

Resistance Characteristics: The DC resistance increase from 3.44 mOhm to 3.7 mOhm represents a 7.6% rise, which remains within acceptable engineering tolerance for most power delivery and filtering applications.

Thermal Performance: The extended operating temperature range (-40°C to 125°C versus -40°C to 105°C) provides additional thermal margin and supports broader application environments.

Compliance and Reliability: Both components maintain ROHS3 compliance and MSL Level 1 rating, ensuring manufacturing process compatibility and long-term reliability characteristics.

Physical Considerations: The substitute part features a larger footprint (13.50mm x 13.50mm versus 10.00mm x 10.00mm) but lower profile height (5.00mm versus 6.50mm). PCB layout verification is required to confirm mechanical fit within the target application.

Product Status: The CDEP134NP-1R2MC-H is actively manufactured and stocked (3200 pcs available), providing reliable long-term procurement availability compared to the obsolete CDEP106NP-1R2MC-50.

Frequently Asked Questions (FAQ)

Q: Can the CDEP134NP-1R2MC-H directly replace the CDEP106NP-1R2MC-50 without circuit modification?

A: Electrical substitution is valid based on matching inductance, tolerance, and core material specifications. However, the larger footprint (13.50mm x 13.50mm versus 10.00mm x 10.00mm) requires PCB layout verification to confirm mechanical fit. No circuit modifications are necessary if board space permits the larger component.

Q: What is the significance of the higher current rating in the substitute part?

A: The CDEP134NP-1R2MC-H is rated for 15 A continuous current versus 13.5 A for the original part. This provides a 1.5 A margin above the original specification, reducing thermal stress and extending component life in the application. The higher saturation current (21 A versus 19.2 A) similarly provides additional headroom for transient current conditions.

Q: How does the DC resistance difference affect circuit performance?

A: The DCR increase from 3.44 mOhm to 3.7 mOhm represents a 7.6% rise. In power delivery applications, this translates to proportionally higher resistive losses. For a 13.5 A load, the additional loss is approximately 0.26 mW. This difference is negligible in most filtering and energy storage applications but should be evaluated in precision current-sensing or low-loss power circuits.

Q: Are there any packaging or handling differences between these parts?

A: The CDEP106NP-1R2MC-50 uses standard packaging, while the CDEP134NP-1R2MC-H is supplied in Tape & Reel (TR) format. Both components maintain MSL Level 1 rating, requiring no special moisture control during storage or handling. Standard SMD assembly processes apply to both parts.

Q: What is the impact of the extended temperature range in the substitute part?

A: The CDEP134NP-1R2MC-H operates to 125°C versus 105°C for the original part. This extended range provides additional thermal margin and supports applications requiring higher ambient or component operating temperatures. If the original application operates below 105°C, this difference has no practical impact.

Q: Is mechanical fit verification required before implementation?

A: Yes. The substitute part is physically larger (13.50mm x 13.50mm footprint) but has lower profile height (5.00mm versus 6.50mm). PCB layout must be reviewed to confirm the larger footprint fits within available board space. The lower profile may provide clearance benefits in height-constrained designs.