ELL-6UH271M Equivalent & Substitute Parts

Part Overview

The ELL-6UH271M is a 270 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 370 mA continuous current with 1.2Ohm DC resistance. 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-6UH271M

Panasonic Electronic ComponentsIn Stock: 1034ELL-6UH271M Datasheet

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SCRH64-271

Signal TransformerIn Stock: 1026SCRH64-271 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the ELL-6UH271M is determined by the following critical parameters:

• Inductance Value: 270 µH (±20% tolerance acceptable)
• Current Rating: Minimum 370 mA required; higher ratings are acceptable
• DC Resistance: Baseline 1.2Ohm; substitutes with higher DCR are acceptable if circuit design permits
• Shielding: Shielded configuration required
• Mounting: Surface mount, nonstandard package
• Compliance: RoHS3 compliant, MSL 1 rating

The SCRH64-271 from Signal Transformer meets these substitution criteria with matching inductance, higher current rating (450 mA), and equivalent shielding and compliance specifications.

Parameter Comparison

Engineering Selection Recommendations

The SCRH64-271 is a direct functional substitute for the obsolete ELL-6UH271M. Both components share identical inductance values, tolerance specifications, and shielding characteristics. The SCRH64-271 offers superior current handling capability (450 mA vs. 370 mA) and active product status, ensuring long-term availability and supply chain continuity.

The primary design consideration is DC resistance: the SCRH64-271 exhibits 2.37Ohm maximum DCR compared to the ELL-6UH271M's 1.2Ohm. Circuit designs must accommodate this increased resistance or verify that power dissipation and voltage drop remain within acceptable limits. Physical dimensions differ slightly (7.10mm x 6.50mm vs. 6.40mm x 6.00mm), requiring PCB layout verification for space-constrained applications. Both components maintain identical seated height (5.00mm) and are fully RoHS3 compliant with MSL 1 ratings.

Frequently Asked Questions (FAQ)

Q: Can the SCRH64-271 directly replace the ELL-6UH271M in existing designs?

A: The SCRH64-271 is functionally equivalent for inductance and current handling. However, verify that the increased DC resistance (2.37Ohm vs. 1.2Ohm) does not exceed circuit power dissipation or voltage drop limits. Confirm PCB layout accommodates the slightly larger footprint (7.10mm x 6.50mm).

Q: What is the significance of the higher saturation current (260 mA) in the SCRH64-271?

A: The saturation current specification indicates the current level at which the inductor's inductance begins to degrade. The SCRH64-271's 260 mA saturation point is lower than its 450 mA continuous rating, requiring verification that peak circuit currents remain below this threshold to maintain inductance stability.

Q: Are both parts suitable for high-reliability applications?

A: Both components are RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level) ratings, suitable for standard industrial and commercial applications. The SCRH64-271's active product status and specified operating temperature range (-40°C ~ 125°C) provide additional assurance for long-term deployment.

Q: What packaging options are available?

A: The ELL-6UH271M packaging format is not specified in available documentation. The SCRH64-271 is supplied in Tape & Reel (TR) format, standard for automated assembly processes.

Q: How do the physical dimensions affect PCB design?

A: The SCRH64-271 is 0.28mm longer and 0.50mm wider than the ELL-6UH271M, with identical seated height. Verify component placement clearance and trace routing in space-constrained layouts before design release.