SD7030-6R0-R Equivalent & Substitute Parts

Part Overview

The SD7030-6R0-R is a fixed shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 5.8 µH inductance with a maximum current rating of 2.8 A and DC resistance of 35 mOhm. The part is currently active in production and RoHS compliant, making it suitable for modern electronic applications requiring compact, shielded inductive filtering or energy storage in power conversion circuits.

Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits equivalent electrical and mechanical performance within specified tolerances.

Key Parameters

Parameter	Value	Unit	Significance for Substitution
Inductance	5.8	µH	Core electrical specification; tolerance ±30% defines acceptable range
Current Rating	2.8	A	Maximum continuous current; substitute must meet or exceed this value
DC Resistance (DCR)	35	mOhm Max	Power loss parameter; critical for thermal and efficiency calculations
Shielding	Shielded	—	Electromagnetic interference containment; must be maintained
Core Material	Ferrite	—	Determines frequency response and saturation characteristics
Mounting Type	Surface Mount	—	PCB assembly compatibility; must remain surface mount
Package Type	Nonstandard	—	Physical footprint; substitute must fit within board layout constraints
Operating Temperature Range	-40°C to 125°C	—	Environmental operating limits; substitute must cover or exceed this range
RoHS Compliance	RoHS Compliant	—	Regulatory requirement; substitute must maintain compliance status

Substitute Part Grouping Explanation

Substitute parts for the SD7030-6R0-R are identified based on the following critical parameters:

Inductance Value: The main part specifies 5.8 µH with ±30% tolerance, establishing an acceptable range of 4.06 µH to 7.54 µH. Substitute inductors must fall within this tolerance band to maintain circuit performance.

Current Rating: The SD7030-6R0-R is rated for 2.8 A continuous current. Substitute parts must support at least this current level to prevent thermal stress and component failure in the application.

DC Resistance: Maximum DCR of 35 mOhm is specified. Substitute parts with equal or lower DCR maintain equivalent power efficiency and thermal characteristics.

Shielding: The shielded construction is mandatory for EMI containment. All substitutes must retain shielded drum core or equivalent shielding architecture.

Core Material: Ferrite core material is specified. Substitutes must use ferrite to ensure consistent frequency response and saturation behavior across the operating temperature range.

Mounting and Package: Surface mount nonstandard package defines physical compatibility. Substitute parts must fit the same PCB footprint and assembly process.

Operating Temperature: The range -40°C to 125°C establishes environmental limits. Substitutes must support this full range or demonstrate equivalent performance within application-specific constraints.

Compliance: RoHS compliance is required. Substitutes must maintain RoHS or equivalent regulatory status.

Parameter Comparison

Parameter	SD7030-6R0-R (Main)	CDRH6D28NP-6R0NC (Substitute)	Compatibility Notes
Manufacturer	Eaton - Electronics Division	Sumida America Components Inc.	Different manufacturers; both active suppliers
Inductance	5.8 µH	6 µH	Within ±30% tolerance band (4.06–7.54 µH); 3.4% variance acceptable
Tolerance	±30%	±30%	Identical tolerance specification
Current Rating	2.8 A	2.25 A	Substitute rated 0.55 A lower; verify application current requirements
DC Resistance (DCR)	35 mOhm Max	35 mOhm Max	Identical maximum DCR specification
Shielding	Shielded	Shielded	Both shielded; EMI performance equivalent
Core Material	Ferrite	Ferrite	Identical core material
Mounting Type	Surface Mount	Surface Mount	Both surface mount; assembly compatible
Size / Dimension	7.00 mm × 7.00 mm	6.70 mm × 6.70 mm	Substitute 0.3 mm smaller per side; verify PCB layout clearance
Height - Seated (Max)	3.00 mm	3.00 mm	Identical height; no clearance issues
Operating Temperature	-40°C to 125°C	-40°C to 100°C	Substitute upper limit 25°C lower; verify application thermal environment
RoHS Status	RoHS Compliant	ROHS3 Compliant	Both compliant; ROHS3 is current standard
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Identical packaging format
Product Status	Active	Active	Both actively manufactured

Engineering Selection Recommendations

Primary Selection (SD7030-6R0-R): Use the original SD7030-6R0-R when available. This part is actively manufactured by Eaton, RoHS compliant, and rated for the full specified current of 2.8 A across the complete operating temperature range of -40°C to 125°C.

Substitute Selection (CDRH6D28NP-6R0NC): The CDRH6D28NP-6R0NC from Sumida America Components Inc. is a qualified substitute when the primary part is unavailable. This part meets the following criteria:

Inductance value of 6 µH falls within the ±30% tolerance band of the 5.8 µH specification
DC resistance maximum of 35 mOhm matches the original specification exactly
Shielded ferrite core construction maintains electromagnetic containment
Surface mount nonstandard package supports identical PCB assembly
ROHS3 compliance satisfies regulatory requirements
Identical tape and reel packaging enables automated assembly

Critical Considerations for Substitution:

The substitute part has a current rating of 2.25 A, which is 0.55 A lower than the original 2.8 A rating. Applications operating at or near the maximum 2.8 A specification must be re-evaluated to confirm the substitute part can safely handle the circuit current without exceeding thermal limits.

The substitute part operating temperature range extends to 100°C maximum, compared to 125°C for the original. Applications requiring operation above 100°C must use the original SD7030-6R0-R or identify an alternative substitute with higher temperature rating.

The substitute part footprint is 6.70 mm × 6.70 mm compared to 7.00 mm × 7.00 mm for the original. The 0.3 mm reduction per side is within typical PCB layout tolerances but should be verified against specific board design constraints and component placement rules.

Both parts are actively produced and RoHS compliant, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the CDRH6D28NP-6R0NC be used as a direct replacement for the SD7030-6R0-R?

A: The CDRH6D28NP-6R0NC is a functional substitute when the application current requirement does not exceed 2.25 A and the operating temperature does not exceed 100°C. The inductance value of 6 µH is within the ±30% tolerance specification of the 5.8 µH original part. Physical footprint differences (6.70 mm vs. 7.00 mm) must be verified against PCB layout constraints. If the application requires the full 2.8 A rating or 125°C operation, the original SD7030-6R0-R must be used.

Q: What is the inductance tolerance range for the SD7030-6R0-R?

A: With a specified tolerance of ±30%, the acceptable inductance range is 4.06 µH to 7.54 µH. The substitute part at 6 µH falls within this range, representing a 3.4% variance from the nominal 5.8 µH specification.

Q: Are there differences in DC resistance between the two parts?

A: Both parts specify a maximum DC resistance of 35 mOhm. No difference exists in this parameter.

Q: What is the significance of the footprint size difference?

A: The SD7030-6R0-R measures 7.00 mm × 7.00 mm, while the CDRH6D28NP-6R0NC measures 6.70 mm × 6.70 mm. The substitute is 0.3 mm smaller per side. This difference is typically accommodated within standard PCB design rules but should be verified against specific layout constraints, component spacing requirements, and manufacturing tolerances for the target application.

Q: Why does the substitute part have a lower current rating?

A: The CDRH6D28NP-6R0NC is rated for 2.25 A continuous current compared to 2.8 A for the original. This reflects design differences in the core geometry, wire gauge, and thermal characteristics between manufacturers. Applications must verify that circuit current does not exceed the substitute part's 2.25 A rating to prevent thermal stress.

Q: What is the operating temperature difference, and does it matter?

A: The SD7030-6R0-R operates from -40°C to 125°C, while the CDRH6D28NP-6R0NC operates from -40°C to 100°C. The substitute has a 25°C lower upper temperature limit. Applications requiring operation above 100°C must use the original part or identify an alternative substitute with higher temperature rating.

Q: Are both parts RoHS compliant?

A: Yes. The SD7030-6R0-R is RoHS compliant, and the CDRH6D28NP-6R0NC is ROHS3 compliant. ROHS3 represents the current regulatory standard and is fully compliant with RoHS requirements.

Q: What packaging format is used for both parts?

A: Both parts are supplied in Tape & Reel (TR) format, enabling automated pick-and-place assembly on standard PCB manufacturing equipment.

Q: Can the substitute part be used in high-frequency applications?

A: Both parts are tested at 100 kHz inductance frequency. Applications requiring operation at significantly higher frequencies should verify frequency response characteristics with the respective manufacturers.

Q: What is the shielding type for both parts?

A: Both parts feature shielded drum core construction, providing equivalent electromagnetic interference containment for the application circuit.

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