ELC-18B220L Equivalent & Substitute Parts

Part Overview

The ELC-18B220L is a 22 µH unshielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 5.4 A continuous current with 25mOhm DC resistance. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, core type, and mounting configuration while meeting or exceeding the electrical performance specifications.

Substiute Parts

ELC-18B220L

Panasonic Electronic ComponentsIn Stock: 1121ELC-18B220L Datasheet

Current PartRFQ

AIUR-15-220M

Abracon LLCIn Stock: 822AIUR-15-220M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELC-18B220L is determined by the following criteria:

• Inductance Match: 22 µH (exact value required)
• Core Material & Type: Ferrite drum core, unshielded construction
• Mounting Configuration: Through hole, radial vertical cylinder orientation
• Current Rating: Minimum 5.4 A continuous current capability
• DC Resistance: Maximum 30mOhm (allowing for component tolerance variations)
• Compliance: ROHS3 compliant certification

The AIUR-15-220M meets all substitution criteria and is classified as an active product with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The AIUR-15-220M is a direct functional equivalent for the obsolete ELC-18B220L. Both components share identical inductance values, core materials, and mounting configurations. The substitute part offers superior current rating (5.7 A vs. 5.4 A) and active product status with ongoing manufacturer support.

The AIUR-15-220M exhibits slightly higher DC resistance (30mOhm maximum vs. 25mOhm) and broader inductance tolerance (±20% vs. ±10%). These differences remain within acceptable substitution parameters for applications where the original ELC-18B220L was specified. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Selection of the AIUR-15-220M eliminates obsolescence risk while maintaining electrical and mechanical compatibility with existing PCB designs and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the AIUR-15-220M be used as a direct replacement for the ELC-18B220L?

A: Yes. Both inductors share the same 22 µH inductance value, ferrite drum core construction, unshielded design, and through-hole radial mounting configuration. The substitute part meets or exceeds the current rating and compliance requirements of the original component.

Q: What is the impact of the higher DC resistance in the AIUR-15-220M?

A: The AIUR-15-220M specifies 30mOhm maximum DCR compared to 25mOhm for the ELC-18B220L. This 5mOhm difference represents approximately 20% higher resistance. Applications sensitive to resistive losses should evaluate this parameter against circuit performance requirements.

Q: Does the broader tolerance of the AIUR-15-220M affect circuit performance?

A: The AIUR-15-220M carries ±20% inductance tolerance versus ±10% for the ELC-18B220L. Circuits requiring tighter inductance control should assess whether this tolerance range remains acceptable for the intended application.

Q: Are there physical dimension differences between these parts?

A: Yes. The ELC-18B220L measures 0.787" diameter × 1.063" height, while the AIUR-15-220M measures 0.709" diameter × 0.787" height. PCB layout and mechanical clearance must be verified before substitution.

Q: What is the advantage of selecting the AIUR-15-220M over the obsolete ELC-18B220L?

A: The AIUR-15-220M is an active product with current manufacturing support, ensuring long-term availability and supply chain continuity. The original ELC-18B220L is obsolete and subject to inventory depletion.