ELC-09D6R8DF Equivalent & Substitute Parts

Part Overview

The ELC-09D6R8DF is a 6.8 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 2.8 A continuous current with 21mOhm DC resistance. This through-hole radial component operates at 10 kHz test frequency and is housed in a vertical cylinder package measuring 9.50mm diameter by 8.90mm height.

The ELC-09D6R8DF carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

ELC-09D6R8DF

Panasonic Electronic ComponentsIn Stock: 931ELC-09D6R8DF Datasheet

Current PartRFQ

744772068

Würth ElektronikIn Stock: 2112744772068 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELC-09D6R8DF is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 6.8 µH (±20% tolerance band)
• Mounting type: Through hole configuration
• Package style: Radial, vertical cylinder orientation
• Shielding classification: Unshielded

Secondary Compatibility Factors:

• Current rating: Substitute must equal or exceed 2.8 A
• DC resistance: Substitute must not exceed 25mOhm maximum
• RoHS compliance: ROHS3 Compliant status required

The substitute part 744772068 (Würth Elektronik WE-TI series) meets all primary matching criteria and exceeds secondary compatibility requirements with a 3.8 A current rating and 25mOhm maximum DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The 744772068 (Würth Elektronik WE-TI series) is a qualified substitute for the obsolete ELC-09D6R8DF based on the following engineering factors:

Compliance & Availability: The substitute part maintains ROHS3 compliance and carries active product status, ensuring ongoing availability and regulatory alignment. The original ELC-09D6R8DF obsolete status creates supply chain risk; the WE-TI alternative mitigates this risk.

Electrical Performance: Both components deliver 6.8 µH inductance within ±20% tolerance. The substitute's 3.8 A current rating provides 35% margin above the original 2.8 A specification. DC resistance of 25mOhm maximum remains within acceptable operating parameters for equivalent circuit performance.

Physical Compatibility: Both parts utilize through-hole radial vertical cylinder packaging suitable for PCB mounting. Dimensional differences (7.80mm vs 9.50mm diameter; 10.00mm vs 8.90mm height) require PCB layout verification but do not prevent functional substitution.

Certification Status: Both components are ROHS3 compliant. The substitute carries REACH Unaffected status, confirming regulatory compliance across multiple jurisdictions.

Frequently Asked Questions (FAQ)

Q: Can the 744772068 directly replace the ELC-09D6R8DF without circuit modification?

A: The 744772068 matches the critical electrical parameters (6.8 µH inductance, ±20% tolerance, unshielded configuration) and exceeds current rating requirements. PCB layout verification is required due to dimensional differences. No circuit modification is necessary if board layout accommodates the substitute's footprint.

Q: What is the significance of the current rating difference (2.8 A vs 3.8 A)?

A: The substitute's higher current rating indicates greater thermal capacity and lower saturation risk at the original design current. This provides operational margin and does not create compatibility issues.

Q: How do the DC resistance values compare functionally?

A: The original part specifies 21mOhm; the substitute specifies 25mOhm maximum. This 4mOhm difference represents approximately 19% variance and remains within acceptable limits for equivalent inductor performance in most applications.

Q: Are there physical mounting concerns?

A: The substitute is slightly smaller in diameter (7.80mm vs 9.50mm) but taller (10.00mm vs 8.90mm). PCB hole spacing and component clearance must be verified before implementation. Both use radial through-hole mounting.

Q: Does product status affect substitution validity?

A: The original part's obsolete status necessitates substitution. The active status of the 744772068 ensures long-term supply availability and ongoing manufacturer support, making it the appropriate engineering choice.