ELC-18E220L Equivalent & Substitute Parts

Part Overview

The ELC-18E220L is a 22 µH shielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 5 A continuous current with 22 mOhm DC resistance. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part features through-hole radial mounting in a vertical cylinder configuration with ferrite core construction and ROHS3 compliance.

Substiute Parts

ELC-18E220L

Panasonic Electronic ComponentsIn Stock: 768ELC-18E220L Datasheet

Current PartRFQ

744750460220

Würth ElektronikIn Stock: 1075744750460220 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELC-18E220L is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 22 µH (exact match required)
• Core type: Ferrite shielded drum core
• Mounting configuration: Through-hole radial, vertical cylinder
• Shielding: Shielded construction

Secondary Compatibility Criteria:

• Current rating: Must equal or exceed 5 A
• DC resistance: Must not exceed 22 mOhm (lower values acceptable)
• Tolerance: ±20% or better acceptable
• RoHS compliance: ROHS3 Compliant required

The Würth Elektronik 744750460220 satisfies all primary matching criteria and exceeds secondary requirements with higher current rating (6.9 A) and lower DC resistance (16 mOhm max), making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744750460220 is the qualified substitute for the obsolete ELC-18E220L. Selection is based on:

• Functional equivalence: Identical inductance value (22 µH) and core construction (ferrite shielded drum core)
• Performance superiority: Higher current rating (6.9 A vs. 5 A) and lower DC resistance (16 mOhm max vs. 22 mOhm) provide improved thermal performance and reduced power dissipation
• Regulatory compliance: Both components maintain ROHS3 compliance, ensuring regulatory continuity
• Active product status: The substitute is currently in active production with confirmed inventory availability (991 pcs), eliminating obsolescence risk

Physical footprint consideration: The substitute component is physically smaller (0.504" diameter vs. 0.748", 0.622" height vs. 0.988"). PCB layout verification is required to confirm fit within existing mounting holes and clearance constraints.

Frequently Asked Questions (FAQ)

Q: Can the 744750460220 be used as a direct replacement for the ELC-18E220L?

A: Yes, the 744750460220 is functionally equivalent for applications requiring 22 µH inductance with shielded ferrite core construction and through-hole radial mounting. Physical dimensions differ; PCB layout compatibility must be confirmed.

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

A: The primary differences are: (1) current rating—744750460220 is rated 6.9 A versus 5 A for ELC-18E220L; (2) DC resistance—744750460220 has 16 mOhm max versus 22 mOhm for ELC-18E220L; (3) inductance tolerance—744750460220 is ±20% versus ±10% for ELC-18E220L; (4) physical size—744750460220 is smaller in both diameter and height; (5) product status—744750460220 is active production while ELC-18E220L is obsolete.

Q: Are there any compliance or certification concerns with substitution?

A: No. Both components are ROHS3 compliant. The substitute maintains equivalent regulatory status and does not introduce compliance risk.

Q: Will the smaller physical dimensions of the substitute cause mounting issues?

A: The 744750460220 is smaller than the ELC-18E220L. Verify that existing PCB mounting holes accommodate the smaller diameter (0.504" vs. 0.748") and that the reduced height (0.622" vs. 0.988") does not conflict with adjacent components or clearance requirements.

Q: What is the saturation current of the substitute?

A: The 744750460220 has a saturation current (Isat) of 7.5 A, which exceeds the continuous current rating of 6.9 A and provides margin for transient conditions.