ELL-6SH271M Equivalent & Substitute Parts

Part Overview

The ELL-6SH271M is a 270 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 260 mA with a DC resistance of 2.4Ohm. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part is surface mount, nonstandard package, and fully RoHS3 compliant with MSL 1 rating.

Substiute Parts

ELL-6SH271M

Panasonic Electronic ComponentsIn Stock: 779ELL-6SH271M Datasheet

Current PartRFQ

SPD62R-274M

API Delevan Inc.In Stock: 811SPD62R-274M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the ELL-6SH271M is determined by the following critical parameters:

• Inductance Value: 270 µH (±20% tolerance acceptable)
• Current Rating: Minimum 260 mA required
• DC Resistance: Maximum 2.4Ohm preferred; higher values acceptable if circuit design permits
• Shielding: Shielded construction required
• Mounting: Surface mount, nonstandard package
• Compliance: RoHS3 compliant, MSL 1 rating

The SPD62R-274M meets these substitution criteria with equivalent inductance, higher current rating (290 mA), and compatible shielding characteristics. The slightly elevated DC resistance (3Ohm max) and different core material (ferrite drum core vs. standard wirewound) remain within acceptable substitution parameters for this inductance category.

Parameter Comparison

Engineering Selection Recommendations

The SPD62R-274M is a direct functional substitute for the ELL-6SH271M based on the following engineering criteria:

• Inductance Match: Both parts specify 270 µH with ±20% tolerance, ensuring equivalent circuit performance
• Current Capacity: The SPD62R-274M provides 290 mA rating, exceeding the original 260 mA requirement
• Compliance Status: Both parts are ROHS3 compliant with MSL 1 rating, maintaining regulatory and environmental standards
• Active Availability: The SPD62R-274M is active production status, ensuring long-term supply continuity versus the obsolete ELL-6SH271M
• Physical Compatibility: Dimensions are comparable (6.60mm x 6.20mm vs. 6.40mm x 6.00mm), with the substitute featuring lower profile height (3.00mm vs. 3.30mm)

The 0.6Ohm increase in maximum DC resistance (3Ohm vs. 2.4Ohm) must be evaluated within circuit thermal and efficiency requirements. For applications where DCR is critical, circuit simulation or thermal analysis is necessary to confirm acceptability.

Frequently Asked Questions (FAQ)

Q: Can the SPD62R-274M directly replace the ELL-6SH271M in existing designs?

A: Yes, for inductance value and current rating requirements. The SPD62R-274M meets or exceeds the electrical specifications of the ELL-6SH271M. However, the increased DC resistance (3Ohm max vs. 2.4Ohm) may affect circuit efficiency and thermal performance. PCB layout accommodation for the slightly larger footprint (6.60mm x 6.20mm) must be verified.

Q: What is the significance of the different core materials?

A: The ELL-6SH271M uses standard wirewound construction, while the SPD62R-274M uses ferrite drum core wirewound construction. Both are shielded and rated for the same inductance value. The ferrite core design in the substitute may provide improved EMI characteristics and thermal stability across the operating temperature range (-55°C to 125°C).

Q: Are there packaging differences between these parts?

A: Both parts use nonstandard surface mount packages. The SPD62R-274M is supplied in Tape & Reel (TR) packaging, while the ELL-6SH271M packaging format is not specified. Verify reel compatibility with assembly equipment before procurement.

Q: Why is the ELL-6SH271M obsolete?

A: The ELL-6SH271M is classified as obsolete by Panasonic Electronic Components. The SPD62R-274M, maintained in active production by API Delevan Inc., provides equivalent functionality with improved availability and long-term supply assurance.

Q: How do the inductance test frequencies differ?

A: The ELL-6SH271M inductance is tested at 100 kHz, while the SPD62R-274M is tested at 1 kHz. Both specifications are valid for their respective measurement standards. Circuit performance depends on actual operating frequency; confirm that the substitute's inductance value remains stable at your circuit's operating frequency.