ELC-09D8R2DF Equivalent & Substitute Parts

Part Overview

The ELC-09D8R2DF is an 8.2 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 2.6 A continuous current with 24mOhm 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 product is classified as obsolete, necessitating identification of active equivalent components that maintain functional compatibility for existing designs.

Substiute Parts

ELC-09D8R2DF

Panasonic Electronic ComponentsIn Stock: 1010ELC-09D8R2DF Datasheet

Current PartRFQ

B82144B2822K000

EPCOS - TDK ElectronicsIn Stock: 1752B82144B2822K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELC-09D8R2DF is determined by the following critical parameters:

Inductance Value: 8.2 µH must be maintained within tolerance specifications to preserve circuit function.

Current Rating: Substitute parts must support minimum 2.6 A continuous current. Higher ratings provide design margin.

DC Resistance: The 24mOhm specification establishes acceptable power dissipation limits. Substitute parts with higher DCR values increase thermal load.

Package Configuration: Through-hole radial vertical cylinder mounting is required for mechanical compatibility with existing PCB layouts.

Electrical Characteristics: Unshielded construction and inductance test frequency parameters must align with circuit requirements.

Compliance: ROHS3 compliance is mandatory for regulatory adherence.

The B82144B2822K000 from EPCOS - TDK Electronics qualifies as a functional substitute based on matching inductance value, exceeding current rating specification, and maintaining through-hole radial package compatibility.

Parameter Comparison

Engineering Selection Recommendations

The B82144B2822K000 is an active product with current manufacturing availability, addressing the obsolescence status of the ELC-09D8R2DF. Both components maintain ROHS3 compliance and identical inductance specifications. The substitute part delivers equivalent current capacity at 2.65 A, meeting or exceeding the 2.6 A requirement.

The primary design consideration is DC resistance differential. The B82144B2822K000 exhibits 105mOhm maximum DCR compared to 24mOhm in the original part. This 4.4× increase in resistance results in higher power dissipation under load conditions. Circuit thermal analysis is necessary to confirm acceptable operating temperatures within the substitute's rated range of -55°C to 125°C.

The B82144B2822K000 provides tighter inductance tolerance (±10% versus ±20%), offering improved circuit performance consistency. Both components are unshielded through-hole radial configurations, ensuring mechanical and electrical compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the B82144B2822K000 directly replace the ELC-09D8R2DF in all applications?

A: Direct replacement is mechanically and electrically feasible for inductance and current specifications. However, the significantly higher DC resistance (105mOhm versus 24mOhm) requires thermal evaluation. Applications with tight thermal budgets or high continuous current operation must confirm acceptable temperature rise with the substitute component.

Q: What is the impact of the DCR difference on circuit performance?

A: Higher DC resistance increases I²R power dissipation proportionally. At 2.6 A continuous current, the original part dissipates 0.162 W while the substitute dissipates 0.712 W. This difference affects inductor temperature rise and may impact circuit efficiency and thermal management requirements.

Q: Are the physical dimensions compatible?

A: Both components use radial vertical cylinder through-hole packages. The ELC-09D8R2DF measures 9.50mm diameter × 8.90mm height, while the B82144B2822K000 measures 6.50mm diameter × 14.00mm height. PCB layout verification is required to confirm fit within available space constraints.

Q: Does the substitute part meet compliance requirements?

A: Yes. The B82144B2822K000 is ROHS3 compliant and REACH affected, matching the regulatory status of the original component.

Q: What is the significance of inductance tolerance differences?

A: The substitute's ±10% tolerance is tighter than the original ±20% specification, resulting in more consistent inductance values across production batches. This improves circuit performance predictability and reduces design margin requirements.