ELC-15E220L Equivalent & Substitute Parts

Part Overview

The ELC-15E220L is a 22 µH shielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 4.3 A continuous current with 27 mOhm DC resistance. This component features through-hole radial mounting in a vertical cylinder configuration with three leads. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines that maintain the same inductance value and core shielding characteristics while accommodating modern supply chain requirements.

Substiute Parts

ELC-15E220L

Panasonic Electronic ComponentsIn Stock: 1129ELC-15E220L Datasheet

Current PartRFQ

744750460220

Würth ElektronikIn Stock: 1075744750460220 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELC-15E220L is determined by the following mandatory parameters:

• Inductance Value: Must be 22 µH to maintain circuit functionality
• Core Type & Shielding: Must be ferrite drum core with shielding to preserve electromagnetic isolation
• Mounting Configuration: Must support through-hole radial mounting in vertical cylinder orientation
• Current Handling: Substitute must support minimum 4.3 A continuous current rating
• DC Resistance: Lower DCR values are acceptable as they reduce power dissipation
• Compliance: Must maintain ROHS3 compliance for regulatory alignment

The Würth Elektronik 744750460220 qualifies as a direct substitute based on these criteria. It maintains identical inductance (22 µH), equivalent core construction (ferrite drum core, shielded), compatible mounting (through-hole radial), and exceeds the current requirement (6.9 A vs. 4.3 A). The substitute features improved DC resistance (16 mOhm vs. 27 mOhm) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 744750460220 from Würth Elektronik is a qualified substitute for the obsolete ELC-15E220L. Selection is based on the following engineering factors:

• Functional Equivalence: Both components deliver 22 µH inductance with ferrite drum core shielding and through-hole radial mounting, ensuring circuit-level compatibility.
• Performance Margin: The substitute provides 60% higher continuous current rating (6.9 A vs. 4.3 A) and 41% lower DC resistance (16 mOhm vs. 27 mOhm), resulting in reduced thermal dissipation and improved reliability margin.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and equivalent ECCN/HTSUS classifications, supporting supply chain continuity.
• Product Lifecycle: The substitute is active production status, ensuring long-term availability and supply security compared to the obsolete original.
• Tolerance Consideration: The substitute features ±20% inductance tolerance versus ±10% for the original. Circuit design must accommodate this wider tolerance band if inductance precision is critical.

Frequently Asked Questions (FAQ)

Q: Can the 744750460220 be used as a direct replacement in existing PCB designs?

A: Yes, provided the PCB footprint accommodates the substitute's physical dimensions (0.504" diameter vs. 0.630" for the original, and 0.622" height vs. 0.906"). The three-lead radial configuration is compatible, but mechanical clearance must be verified.

Q: What is the impact of the ±20% inductance tolerance on circuit performance?

A: The substitute's wider tolerance (±20% vs. ±10%) may affect circuits with tight inductance specifications. Applications requiring precise inductance values should evaluate tolerance impact on frequency response, filtering characteristics, or impedance matching before substitution.

Q: Are there thermal or current handling differences between these parts?

A: The substitute supports 6.9 A continuous current versus 4.3 A for the original, with lower DC resistance (16 mOhm vs. 27 mOhm). This results in reduced I²R losses and lower operating temperature under equivalent load conditions, improving thermal performance.

Q: Is the substitute suitable for high-temperature applications?

A: The substitute specifies an operating temperature range of -40°C to 125°C. The original part does not provide temperature specifications. Applications requiring operation beyond this range require alternative component evaluation.

Q: What packaging format is the substitute supplied in?

A: The 744750460220 is supplied in tray packaging, suitable for automated assembly processes. Original packaging format for the ELC-15E220L is not specified in available documentation.