ELC-09D2R2DF Equivalent & Substitute Parts

Part Overview

The ELC-09D2R2DF is a 2.2 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 4.6 A continuous current with 12mOhm DC resistance. This component is designed for through-hole radial mounting in vertical cylinder configuration. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

ELC-09D2R2DF

Panasonic Electronic ComponentsIn Stock: 815ELC-09D2R2DF Datasheet

Current PartRFQ

RLB0912-2R2ML

Bourns Inc.In Stock: 18297RLB0912-2R2ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELC-09D2R2DF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 2.2 µH with ±20% tolerance
• Inductance tolerance: ±20%
• Mounting type: Through hole
• Package configuration: Radial, vertical cylinder
• Shielding classification: Unshielded

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 4.6 A
• DC resistance: Substitute must not exceed 12mOhm (lower values acceptable)
• Physical dimensions: Substitute must fit within or match the radial vertical cylinder envelope

The RLB0912-2R2ML from Bourns Inc. meets all critical matching parameters and exceeds performance specifications in current rating and DC resistance, making it a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RLB0912-2R2ML is a qualified substitute for the obsolete ELC-09D2R2DF based on the following factors:

Electrical Compatibility: Both components share identical inductance values (2.2 µH) and tolerance specifications (±20%). The substitute provides superior electrical performance with higher current rating (5.3 A versus 4.6 A) and lower DC resistance (10mOhm Max versus 12mOhm), resulting in reduced power dissipation in the application circuit.

Regulatory Compliance: Both parts maintain ROHS3 compliance, ensuring compatibility with current environmental and regulatory requirements.

Physical Considerations: While the substitute maintains the same radial vertical cylinder package configuration, dimensional differences exist. The RLB0912-2R2ML has a smaller diameter (8.70mm versus 9.50mm) but greater height (11.00mm versus 8.90mm). PCB layout verification is necessary to confirm clearance in the vertical dimension.

Product Status: The substitute is active production status with substantial inventory availability (18,190 pieces), ensuring long-term supply chain reliability compared to the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can the RLB0912-2R2ML directly replace the ELC-09D2R2DF in existing designs?

A: Electrical substitution is direct due to matching inductance, tolerance, and shielding specifications. Mechanical verification is required to confirm the increased height (11.00mm versus 8.90mm) does not create clearance conflicts on the PCB or within the enclosure.

Q: What are the key differences between these two inductors?

A: The primary differences are current rating (5.3 A versus 4.6 A), DC resistance (10mOhm Max versus 12mOhm), and physical dimensions. The substitute offers improved electrical performance with lower losses and higher current capacity.

Q: Are both parts RoHS compliant?

A: Yes, both the ELC-09D2R2DF and RLB0912-2R2ML are ROHS3 compliant, meeting current environmental standards.

Q: What is the inductance tolerance for both parts?

A: Both inductors have ±20% inductance tolerance at their respective test frequencies (10 kHz for Panasonic, 1 kHz for Bourns).

Q: Does the substitute have any additional performance specifications?

A: The RLB0912-2R2ML provides additional specifications including saturation current (7.5A), quality factor (30 @ 7.96MHz), and self-resonant frequency (63MHz), along with operating temperature range (-40°C to 105°C), offering more detailed performance characterization than the obsolete part.

Q: Are there any packaging or inventory considerations?

A: The substitute is supplied in bulk packaging with 18,190 pieces in stock, compared to 791 pieces available for the obsolete main part, providing superior supply chain availability.