CDEP106NP-R45MC-50 Equivalent & Substitute Parts

Part Overview

The CDEP106NP-R45MC-50 is a 450 nH shielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 20 A continuous current with a maximum DC resistance of 1.68 mOhm. This component is designed for surface mount applications in high-current, low-inductance circuits requiring electromagnetic shielding and ferrite core construction.

The CDEP106NP-R45MC-50 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production, maintenance, and design continuity for systems currently utilizing this inductor. Substitute parts must maintain electrical performance within the specified operating parameters while meeting current component availability and compliance requirements.

Substiute Parts

CDEP106NP-R45MC-50

Sumida America Components Inc.In Stock: 770CDEP106NP-R45MC-50 Datasheet

Current PartRFQ

CDEP105NP-0R4MC-50

Sumida America Components Inc.In Stock: 767CDEP105NP-0R4MC-50 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDEP106NP-R45MC-50 must satisfy the following electrical and mechanical criteria:

Mandatory Matching Parameters:

• Inductance value: 450 nH
• Inductance tolerance: ±20%
• Core material: Ferrite
• Shielding: Shielded
• Mounting type: Surface Mount
• Physical footprint: 10.00 mm × 10.00 mm

Allowable Variation Parameters:

• Current rating: May be lower than 20 A if application requirements permit
• DC resistance (DCR): May be higher than 1.68 mOhm within acceptable circuit performance limits
• Saturation current (Isat): May be lower than 31.6 A if peak current demands do not exceed the substitute part rating
• Operating temperature range: May be wider than -40°C to 105°C
• Height: May be lower than 6.50 mm maximum
• Product status: Active status preferred for long-term availability

The CDEP105NP-0R4MC-50 meets all mandatory matching parameters and qualifies as a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CDEP105NP-0R4MC-50

The CDEP105NP-0R4MC-50 is the qualified substitute for the obsolete CDEP106NP-R45MC-50. Selection of this substitute is based on the following engineering criteria:

Electrical Compatibility: The substitute maintains identical inductance (450 nH) and tolerance (±20%), ensuring circuit performance in frequency response and impedance matching. Both components use ferrite core construction with shielding, preserving electromagnetic isolation characteristics.

Current Handling: The CDEP105NP-0R4MC-50 is rated for 17.7 A continuous current and 26.4 A saturation current, compared to the main part's 20 A and 31.6 A ratings respectively. This substitute is suitable for applications where continuous current demand does not exceed 17.7 A and peak transient currents remain below 26.4 A.

Thermal Performance: The substitute operates across -40°C to 125°C, extending the upper temperature limit by 20°C beyond the main part's -40°C to 105°C range. This provides improved thermal margin in high-temperature environments.

Mechanical Compatibility: Both components share identical 10.00 mm × 10.00 mm footprints and surface mount construction. The substitute's 5.60 mm seated height is 0.90 mm lower than the main part, providing additional clearance for PCB assembly and component stacking.

Compliance and Availability: The CDEP105NP-0R4MC-50 maintains ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating. Active product status ensures sustained component availability and supply chain continuity.

DC Resistance Consideration: The substitute exhibits 2.4 mOhm maximum DC resistance, 0.72 mOhm higher than the main part. In low-inductance, high-current applications, this increased resistance results in proportionally higher I²R losses. Circuit thermal analysis is required to confirm acceptable power dissipation.

Frequently Asked Questions (FAQ)

Q: Can the CDEP105NP-0R4MC-50 be used as a direct replacement for the CDEP106NP-R45MC-50 in all applications?

A: The CDEP105NP-0R4MC-50 qualifies as a direct substitute only for applications where continuous current does not exceed 17.7 A and peak saturation current remains below 26.4 A. Applications requiring the full 20 A continuous rating of the main part require circuit redesign or alternative component selection.

Q: What is the impact of the higher DC resistance in the substitute part?

A: The CDEP105NP-0R4MC-50 exhibits 2.4 mOhm maximum DC resistance compared to 1.68 mOhm in the main part. At 17.7 A, this results in approximately 0.71 W additional power dissipation. Circuit thermal design must accommodate this increased resistive loss.

Q: Are the physical dimensions identical between the main part and substitute?

A: Both components share identical 10.00 mm × 10.00 mm footprints and surface mount construction. The substitute's maximum seated height is 5.60 mm, compared to 6.50 mm for the main part. This 0.90 mm reduction provides additional PCB assembly clearance.

Q: What is the significance of the substitute part's active product status?

A: The CDEP105NP-0R4MC-50 is classified as active, indicating ongoing manufacturing and sustained supply chain availability. The main part's obsolete status creates long-term sourcing risk. The active substitute ensures component availability for production continuity and future maintenance requirements.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the CDEP106NP-R45MC-50 and CDEP105NP-0R4MC-50 are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. Both operate across -40°C to 105°C minimum, with the substitute extending to 125°C. Packaging and handling requirements are equivalent.

Q: What packaging options are available for the substitute part?

A: The CDEP105NP-0R4MC-50 is supplied in Tape & Reel (TR) packaging, suitable for automated PCB assembly processes. Packaging format should be verified against production requirements prior to procurement.