ELC-09D3R9DF Equivalent & Substitute Parts

Part Overview

The ELC-09D3R9DF is a 3.9 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 3.1 A with 16mOhm DC resistance. This through-hole radial component operates at 10 kHz test frequency and is housed in a vertical cylinder package measuring 0.374" diameter by 0.350" height.

The ELC-09D3R9DF 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 applications utilizing this inductor specification.

Substiute Parts

ELC-09D3R9DF

Panasonic Electronic ComponentsIn Stock: 1073ELC-09D3R9DF Datasheet

Current PartRFQ

B82144B2392K000

EPCOS - TDK ElectronicsIn Stock: 1425B82144B2392K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELC-09D3R9DF is determined by the following critical parameters:

Inductance Value: 3.9 µH (primary electrical specification)

Current Rating: Minimum 3.1 A (must meet or exceed the original specification)

DC Resistance: Must be compatible with circuit thermal and efficiency requirements

Mounting Type: Through Hole (mechanical compatibility requirement)

Package Configuration: Radial, Vertical Cylinder (physical fit requirement)

Shielding: Unshielded (electromagnetic compatibility requirement)

Compliance: ROHS3 Compliant (regulatory requirement)

The B82144B2392K000 from EPCOS - TDK Electronics meets these substitution criteria. It maintains the identical 3.9 µH inductance value, exceeds the current rating requirement at 3.35 A, utilizes through-hole mounting with radial vertical cylinder packaging, and maintains unshielded configuration with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The B82144B2392K000 is an active product from EPCOS - TDK Electronics and represents a viable substitute for the obsolete ELC-09D3R9DF based on the following factors:

Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete main part.

Electrical Compatibility: Both parts maintain identical 3.9 µH inductance specifications. The substitute provides higher current rating (3.35 A versus 3.1 A), offering improved headroom for circuit operation.

Regulatory Compliance: Both parts are ROHS3 compliant, meeting current environmental and regulatory requirements.

Physical Considerations: While both parts utilize radial vertical cylinder packaging and through-hole mounting, dimensional differences exist. The substitute part features a smaller diameter (0.256" versus 0.374") but greater height (0.551" versus 0.350"). PCB layout verification is necessary to confirm physical fit within existing designs.

DC Resistance Variance: The substitute exhibits higher DC resistance (75mOhm maximum versus 16mOhm). This parameter difference affects thermal dissipation and circuit efficiency and must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the B82144B2392K000 directly replace the ELC-09D3R9DF without circuit modification?

A: Both parts maintain identical 3.9 µH inductance and unshielded configuration. However, the higher DC resistance of the substitute (75mOhm versus 16mOhm) and dimensional differences require circuit evaluation. PCB layout verification is necessary to confirm physical fit.

Q: What is the significance of the current rating difference between these parts?

A: The ELC-09D3R9DF is rated for 3.1 A, while the B82144B2392K000 is rated for 3.35 A. The substitute provides additional current capacity, which is acceptable for applications operating at or below the original part's rating.

Q: How do the tolerance specifications affect substitution?

A: The ELC-09D3R9DF carries ±20% tolerance, while the B82144B2392K000 carries ±10% tolerance. The substitute provides tighter inductance tolerance, which may improve circuit performance consistency.

Q: Are there physical fit concerns when substituting these parts?

A: Yes. The substitute part has a smaller diameter (0.256" versus 0.374") but greater height (0.551" versus 0.350"). PCB layout and component clearance must be verified before implementation.

Q: Do both parts meet current regulatory requirements?

A: Both parts are ROHS3 compliant. The substitute additionally carries REACH Affected status, indicating compliance with additional European chemical regulations.