DR1030-680-R Equivalent & Substitute Parts

Part Overview

The DR1030-680-R is a 68 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 1.1 A continuous current with a maximum DC resistance of 303.7 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently active in production and available in Tape & Reel packaging with ROHS3 compliance.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor category. Alternative sources provide design flexibility, supply chain redundancy, and inventory availability options.

Substiute Parts

DR1030-680-R

Eaton - Electronics DivisionIn Stock: 1040DR1030-680-R Datasheet

Current PartRFQ

SRU1028-680Y

Bourns Inc.In Stock: 6066SRU1028-680Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DR1030-680-R is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value of 68 µH at 100 kHz test frequency
• Inductance tolerance of ±30%
• Current rating of 1.0 A or greater
• DC resistance within acceptable operating limits for the application
• Ferrite drum core construction with shielding

Mechanical Compatibility Criteria:

• Surface mount package configuration
• Nonstandard case dimensions compatible with PCB layout
• Moisture sensitivity level of 1 (Unlimited)
• Operating temperature range of -40°C to 125°C

Compliance Requirements:

• ROHS3 compliance
• EAR99 export classification

The SRU1028-680Y from Bourns Inc. meets these substitution criteria with equivalent inductance, ferrite core construction, shielding, surface mount configuration, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the DR1030-680-R and SRU1028-680Y are active production components with ROHS3 compliance and EAR99 export classification. Selection between these parts is based on the following factors:

DR1030-680-R (Eaton):

• Higher current rating of 1.1 A provides margin for applications requiring sustained current delivery
• Higher saturation current of 1.24 A
• Maximum DC resistance of 303.7 mOhm
• Suitable for designs with current headroom requirements

SRU1028-680Y (Bourns):

• Lower DC resistance of 232 mOhm reduces power dissipation
• Slightly smaller footprint (10.00mm x 10.00mm versus 10.50mm x 10.30mm)
• Specified Q factor of 20 at 2.52 MHz and self-resonant frequency of 9 MHz
• Suitable for applications prioritizing efficiency and space constraints
• Current rating of 1.0 A is adequate for designs not requiring the additional 0.1 A margin

Both parts maintain identical inductance value, tolerance, operating temperature range, and compliance status. The choice between them depends on specific application requirements for current capacity, DC resistance characteristics, and physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can the SRU1028-680Y directly replace the DR1030-680-R in existing designs?

A: The SRU1028-680Y is electrically equivalent for inductance value and tolerance. However, the current rating difference (1.0 A versus 1.1 A) and DC resistance difference (232 mOhm versus 303.7 mOhm) must be evaluated against specific circuit requirements. The lower saturation current of 900 mA in the SRU1028-680Y requires verification that peak current demands do not exceed this threshold. Physical dimensions differ slightly (10.00mm x 10.00mm versus 10.50mm x 10.30mm), which may affect PCB layout compatibility.

Q: What are the key differences in DC resistance between these parts?

A: The SRU1028-680Y has a maximum DC resistance of 232 mOhm, while the DR1030-680-R has a maximum of 303.7 mOhm. Lower DC resistance reduces I²R power dissipation. For applications sensitive to thermal performance or efficiency, the SRU1028-680Y provides an advantage. For applications where the higher resistance is acceptable, either part is suitable.

Q: Are both parts suitable for the full operating temperature range?

A: Both the DR1030-680-R and SRU1028-680Y operate across -40°C to 125°C. No temperature-related restrictions apply to substitution between these parts.

Q: What is the significance of the saturation current difference?

A: The DR1030-680-R has a saturation current (Isat) of 1.24 A, while the SRU1028-680Y has 900 mA. Saturation current represents the threshold beyond which inductance begins to degrade. Applications with peak currents approaching or exceeding 900 mA require the DR1030-680-R to maintain inductance stability.

Q: Do both parts have identical compliance certifications?

A: Both parts are ROHS3 compliant, classified as EAR99, and carry moisture sensitivity level 1 (Unlimited). Compliance status is equivalent between the two parts.

Q: How do the physical dimensions affect PCB layout?

A: The DR1030-680-R measures 10.50mm x 10.30mm with a height of 3.00mm. The SRU1028-680Y measures 10.00mm x 10.00mm with a height of 3.10mm. The SRU1028-680Y is slightly smaller in footprint but marginally taller. PCB layout compatibility depends on specific spatial constraints in the target application.