CDRR75NP-6R8MC Equivalent & Substitute Parts

Part Overview

The CDRR75NP-6R8MC is a 6.8 µH fixed shielded inductor manufactured by Sumida America Components Inc., rated for 2.55 A continuous current with a maximum DC resistance of 43mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is RoHS3 compliant. The part is currently active in production with 927 pieces available in stock.

Equivalent and substitute parts are identified when design requirements permit component interchange based on matching electrical specifications, mechanical compatibility, and environmental ratings. The CDRR75NP-6R8MC has three qualified substitute options from Eaton Electronics Division, all maintaining the 6.8 µH inductance value and ±20% tolerance while offering comparable or superior performance characteristics.

Substiute Parts

CDRR75NP-6R8MC

Sumida America Components Inc.In Stock: 1023CDRR75NP-6R8MC Datasheet

Current PartRFQ

DR73-6R8-R

Eaton - Electronics DivisionIn Stock: 5820DR73-6R8-R Datasheet

SimilarRFQ

DR74-6R8-R

Eaton - Electronics DivisionIn Stock: 1235DR74-6R8-R Datasheet

SimilarRFQ

DRA73-6R8-R

Eaton - Electronics DivisionIn Stock: 7961DRA73-6R8-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDRR75NP-6R8MC is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Inductance value: 6.8 µH (exact match required)
• Inductance tolerance: ±20% (identical specification)
• Shielding: Shielded configuration (electromagnetic containment requirement)
• Mounting type: Surface Mount (assembly compatibility)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)
• Inductance test frequency: 100 kHz (measurement standard)

Acceptable Variation Parameters:

• Current rating: Substitute must equal or exceed 2.55 A
• DC resistance: Substitute must not exceed 43mOhm (lower values acceptable)
• Operating temperature: Substitute must cover minimum -40°C to 125°C range (extended ranges acceptable)
• Package footprint: Nonstandard packages with compatible physical dimensions acceptable
• Saturation current: Higher values indicate improved performance margin

All three substitute parts (DR73-6R8-R, DR74-6R8-R, DRA73-6R8-R) meet these criteria and are qualified for direct substitution in applications where the CDRR75NP-6R8MC is specified.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CDRR75NP-6R8MC

The CDRR75NP-6R8MC remains the preferred component when specified in original designs. It is actively manufactured, RoHS3 compliant, and carries MSL 1 rating indicating no moisture sensitivity constraints. The part is available in quantity (927 pieces in stock) and meets all standard industrial operating requirements.

Substitute Selection: DR74-6R8-R

The DR74-6R8-R from Eaton Electronics Division is the primary substitute option. It exceeds the current rating specification (2.6 A versus 2.55 A required), provides superior saturation current margin (3.67 A), and delivers lower DC resistance (41.8 mOhm versus 43 mOhm maximum). This part maintains full RoHS3 compliance and operates across the required temperature range. Inventory availability is 1,198 pieces.

Secondary Substitute: DRA73-6R8-R

The DRA73-6R8-R offers extended operating temperature capability (-40°C to 165°C), providing additional thermal margin for high-temperature applications. It features the lowest DC resistance (41 mOhm) and carries AEC-Q200 automotive qualification. This part is suitable for applications requiring enhanced temperature performance or automotive-grade reliability. Inventory availability is 7,892 pieces.

Tertiary Substitute: DR73-6R8-R

The DR73-6R8-R matches the original current rating exactly (2.55 A) and provides good saturation current margin (3.12 A). DC resistance is marginally higher (43.5 mOhm) but remains within acceptable tolerance. This option is suitable for direct replacement in standard industrial applications. Inventory availability is 5,776 pieces.

Physical Compatibility Consideration:

All substitute parts feature larger package footprints (7.60 x 7.60 mm versus 6.90 x 6.90 mm original). PCB layout verification is required to confirm adequate clearance and placement compatibility before implementation.

Frequently Asked Questions (FAQ)

Q: Can DR74-6R8-R be used as a direct replacement for CDRR75NP-6R8MC?

A: Yes. The DR74-6R8-R meets all mandatory electrical specifications: 6.8 µH inductance, ±20% tolerance, shielded configuration, surface mount compatibility, and RoHS3 compliance. The larger package footprint (7.60 x 7.60 mm versus 6.90 x 6.90 mm) requires PCB layout verification to confirm adequate clearance.

Q: What is the significance of the higher saturation current in substitute parts?

A: Saturation current indicates the current level at which the inductor's inductance begins to degrade. The CDRR75NP-6R8MC has Isat of 1.46 A, while substitutes range from 2.96 A to 3.67 A. Higher saturation current provides greater performance margin and reduced inductance variation under peak current conditions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three substitute parts (DR73-6R8-R, DR74-6R8-R, DRA73-6R8-R) carry ROHS3 Compliant certification and are suitable for applications with RoHS environmental requirements.

Q: Which substitute is best for high-temperature applications?

A: The DRA73-6R8-R extends the operating temperature range to -40°C to 165°C, compared to -40°C to 125°C for the original and other substitutes. This part is specified for applications requiring thermal performance beyond standard industrial range.

Q: Does DC resistance variation affect circuit performance?

A: DC resistance affects power dissipation and voltage drop across the inductor. The CDRR75NP-6R8MC specifies 43 mOhm maximum. Substitutes offer equal or lower resistance (41 to 43.5 mOhm), resulting in equal or improved efficiency. Lower DCR reduces heat generation in the component.

Q: What is the impact of package footprint differences?

A: Substitute parts use 7.60 x 7.60 mm footprints versus the original 6.90 x 6.90 mm. This requires verification of available PCB space, trace routing, and component clearance. Height differences (3.55 to 4.35 mm versus 4.80 mm original) may affect board stacking in confined assemblies.

Q: Are all parts available in Tape & Reel packaging?

A: Yes. All parts including the main component and all three substitutes are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: What does AEC-Q200 qualification on DRA73-6R8-R indicate?

A: AEC-Q200 is an automotive industry standard qualification for passive components. This certification indicates the DRA73-6R8-R meets automotive reliability and performance requirements, making it suitable for automotive and high-reliability applications beyond standard industrial use.