SD7030-680-R Equivalent & Substitute Parts

Part Overview

The SD7030-680-R is a 66.6 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 850 mA continuous current with a maximum DC resistance of 304 mOhm and operates across the temperature range of -40°C to 125°C. The part is RoHS Compliant and carries an Active product status. Substitute parts are identified to address inventory availability, extended lead times, or regional sourcing requirements while maintaining functional equivalence within specified electrical and mechanical tolerances.

Substiute Parts

SD7030-680-R

Eaton - Electronics DivisionIn Stock: 960SD7030-680-R Datasheet

Current PartRFQ

CDRH6D28NP-680NC

Sumida America Components Inc.In Stock: 4506CDRH6D28NP-680NC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SD7030-680-R is determined by the following critical parameters:

Inductance Value: The substitute part must fall within the ±30% tolerance band of 66.6 µH. The identified substitute CDRH6D28NP-680NC provides 68 µH, which is within this tolerance range.

DC Resistance (DCR): Both the main part and substitute are specified at 304 mOhm maximum, ensuring equivalent power dissipation characteristics.

Current Rating: The main part is rated for 850 mA continuous current. The substitute is rated for 650 mA, which represents a reduced current capability and must be evaluated against circuit requirements.

Core Material and Shielding: Both parts use ferrite core material with shielding, maintaining electromagnetic compatibility and noise suppression properties.

Operating Temperature Range: The main part operates from -40°C to 125°C. The substitute operates from -40°C to 100°C, representing a narrower upper temperature limit.

Mounting and Package: Both parts are surface mount components with nonstandard packages and identical height specifications (3.00 mm maximum seated height).

Compliance: Both parts are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (SD7030-680-R): Select this part when the application requires the full 850 mA continuous current rating and the extended operating temperature range to 125°C. This part is Active status with RoHS Compliance and is suitable for high-current inductive applications across wide temperature environments.

Substitute Part (CDRH6D28NP-680NC): Select this part when circuit current requirements do not exceed 650 mA and the operating environment remains within -40°C to 100°C. The substitute offers equivalent inductance value, identical DC resistance, and identical physical height. The slightly reduced footprint (6.70 mm vs. 7.00 mm) may provide layout advantages in space-constrained designs. Both parts carry Active product status and full RoHS compliance (ROHS3 for the substitute).

Critical Evaluation Points: The primary limiting factor for substitution is the reduced current rating of the CDRH6D28NP-680NC (650 mA vs. 850 mA). Circuit designs operating above 650 mA continuous current must use the SD7030-680-R. Applications operating in environments exceeding 100°C must use the SD7030-680-R. All other electrical and mechanical parameters support direct substitution within these constraints.

Frequently Asked Questions (FAQ)

Q: Can the CDRH6D28NP-680NC substitute for the SD7030-680-R in all applications?

A: No. The substitute part has a reduced continuous current rating of 650 mA compared to the main part's 850 mA rating. Substitution is valid only when circuit current requirements do not exceed 650 mA. Additionally, the substitute's maximum operating temperature is 100°C versus 125°C for the main part.

Q: What is the inductance tolerance range for both parts?

A: Both parts carry ±30% inductance tolerance. For the SD7030-680-R at 66.6 µH, the tolerance range is 46.62 µH to 86.58 µH. For the CDRH6D28NP-680NC at 68 µH, the range is 47.6 µH to 88.4 µH. The 68 µH value falls within the tolerance band of the 66.6 µH specification.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts have identical seated height (3.00 mm maximum) and identical tape & reel packaging. The footprint differs slightly: the SD7030-680-R is 7.00 x 7.00 mm while the CDRH6D28NP-680NC is 6.70 x 6.70 mm. The substitute's smaller footprint is compatible with layouts designed for the main part, though the reverse may require verification.

Q: Do both parts meet RoHS requirements?

A: Yes. The SD7030-680-R is RoHS Compliant. The CDRH6D28NP-680NC is ROHS3 Compliant, which represents an extended RoHS standard. Both parts satisfy RoHS requirements for lead-free and restricted substance compliance.

Q: What is the DC resistance specification for both parts?

A: Both parts specify a maximum DC resistance of 304 mOhm. This identical specification ensures equivalent power dissipation and thermal characteristics in the circuit.

Q: Is the saturation current specification critical for substitution?

A: The SD7030-680-R specifies saturation current (Isat) at 650 mA. The CDRH6D28NP-680NC does not provide this specification in the available data. Circuit designs that depend on saturation current characteristics should reference the main part specification or request detailed saturation data from the substitute manufacturer.

Q: Can these parts be used interchangeably in high-temperature applications?

A: No. The SD7030-680-R operates to 125°C, while the CDRH6D28NP-680NC operates to 100°C maximum. Applications requiring operation above 100°C must use the SD7030-680-R.