ELL-ATP6R8NB Equivalent & Substitute Parts

Part Overview

The ELL-ATP6R8NB is a 6.8 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 4 A continuous current with 15mOhm DC resistance. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain the same inductance value, shielding characteristics, and surface mount compatibility while meeting current and thermal performance requirements.

Substiute Parts

ELL-ATP6R8NB

Panasonic Electronic ComponentsIn Stock: 1218ELL-ATP6R8NB Datasheet

Current PartRFQ

SRU1038-6R8Y

Bourns Inc.In Stock: 1885SRU1038-6R8Y Datasheet

SimilarRFQ

SRU1048-6R8Y

Bourns Inc.In Stock: 17586SRU1048-6R8Y Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELL-ATP6R8NB are qualified based on the following criteria:

• Inductance Match: 6.8 µH ±30% tolerance
• Shielding: Shielded construction required
• Mounting: Surface mount configuration
• Physical Compatibility: 10.00mm x 10.00mm footprint with height ≤ 5.10mm
• Current Performance: Saturation current ≥ 4 A
• Compliance: ROHS3 compliant

The two identified substitutes—SRU1038-6R8Y and SRU1048-6R8Y from Bourns Inc.—meet these core electrical and mechanical parameters. Both are active products with ferrite drum core construction and identical inductance specifications.

Parameter Comparison

Engineering Selection Recommendations

SRU1048-6R8Y is the primary substitute for the ELL-ATP6R8NB. This part exceeds the original current rating specification (4.8 A vs. 4 A) and provides superior DC resistance performance (13.6 mOhm vs. 15 mOhm), resulting in lower power dissipation. The SRU1048-6R8Y maintains identical inductance, shielding, and footprint compatibility while offering active product status with full ROHS3 compliance and unlimited moisture sensitivity rating.

SRU1038-6R8Y serves as a secondary substitute option. While it meets saturation current requirements (4 A) and maintains footprint compatibility, the elevated DC resistance (35 mOhm) results in approximately 2.3× higher resistive losses compared to the original part. This substitute is suitable for applications where current capacity is not critical and cost optimization is prioritized.

Both substitutes are available in active production with established supply chains, eliminating obsolescence risk associated with the original ELL-ATP6R8NB.

Frequently Asked Questions (FAQ)

Q: Can SRU1038-6R8Y be used as a direct replacement for ELL-ATP6R8NB?

A: SRU1038-6R8Y meets the core electrical specifications (6.8 µH inductance, 4 A saturation current, shielded construction) and physical footprint requirements. However, the higher DC resistance (35 mOhm vs. 15 mOhm) increases power dissipation by approximately 2.3×. Selection depends on thermal budget and efficiency requirements of the application.

Q: What are the key differences between the two Bourns substitutes?

A: SRU1048-6R8Y provides superior electrical performance with lower DC resistance (13.6 mOhm) and higher current rating (4.8 A), making it the preferred choice for applications requiring minimal losses. SRU1038-6R8Y offers a lower-cost alternative with acceptable performance for less demanding applications, though with higher resistive losses.

Q: Are the substitute parts physically compatible with the original PCB layout?

A: Both SRU1038-6R8Y and SRU1048-6R8Y share the identical 10.00mm × 10.00mm footprint as the ELL-ATP6R8NB. Height differences are minimal (4.10mm and 5.10mm respectively vs. 4.50mm original), presenting no clearance issues in standard PCB designs.

Q: Do the substitute parts meet the same compliance requirements?

A: Both SRU1038-6R8Y and SRU1048-6R8Y are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's compliance profile. Both are active products with established supply availability.

Q: Which substitute should be selected for new designs?

A: SRU1048-6R8Y is recommended for new designs due to superior electrical performance (lower DCR, higher current rating) and active product status. This selection minimizes future obsolescence risk and optimizes thermal performance.