ELF-18D650L Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-18D650L is a 2-line common mode choke (CMC) designed for power line filtering applications with a maximum current rating of 1A and through-hole mounting. Manufactured by Panasonic Electronic Components, this component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

ELF-18D650L

Panasonic Electronic ComponentsIn Stock: 1085ELF-18D650L Datasheet

Current PartRFQ

LF2823NP-223

Sumida America Components Inc.In Stock: 1101LF2823NP-223 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELF-18D650L is determined by the following critical parameters:

• Filter Type: Power Line (must match)
• Number of Lines: 2-line configuration (must match)
• Current Rating: 1A maximum (substitute must support)
• Mounting Type: Through Hole (must match)
• Package Configuration: Vertical, 4 PC Pin (must match)
• DC Resistance (DCR): 650mOhm (reference specification for performance equivalence)

The LF2823NP-223 manufactured by Sumida America Components Inc. satisfies all mandatory substitution criteria. This part maintains identical electrical classification, current handling capability, and physical mounting characteristics while providing specified inductance performance at 1 kHz operation.

Parameter Comparison

Engineering Selection Recommendations

The LF2823NP-223 is the qualified substitute for the obsolete ELF-18D650L based on the following factors:

• Active Product Status: The LF2823NP-223 maintains active manufacturing status, ensuring long-term availability and supply chain continuity.
• Electrical Equivalence: Both components share identical current rating (1A), filter type (power line), and line configuration (2-line), with matching DC resistance specification (650mOhm).
• Mechanical Compatibility: Both parts feature through-hole mounting with vertical, 4-pin package configuration, supporting direct board-level substitution.
• Compliance: The LF2823NP-223 carries ROHS3 compliance certification, meeting modern regulatory requirements.
• Moisture Sensitivity: Both components maintain MSL 1 (Unlimited) rating, indicating equivalent handling and storage requirements.

Physical dimensions show minor variations; the substitute is slightly more compact in footprint and height, which may provide layout advantages in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the LF2823NP-223 directly replace the ELF-18D650L on existing PCBs?

A: Yes. Both components share identical mounting type (through hole), package configuration (vertical, 4 PC pin), and current rating (1A). The LF2823NP-223 dimensions are slightly smaller, which does not prevent direct substitution.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution is determined by filter type (power line), number of lines (2), current rating (1A maximum), and DC resistance (650mOhm). The LF2823NP-223 meets all these specifications.

Q: Does the LF2823NP-223 provide inductance specifications?

A: Yes. The LF2823NP-223 specifies 22 mH @ 1 kHz. The original ELF-18D650L does not provide inductance data in available documentation.

Q: Are there compliance differences between these parts?

A: The LF2823NP-223 carries ROHS3 compliance certification. The ELF-18D650L compliance status is not specified. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the operating temperature range for the LF2823NP-223?

A: Operating temperature range is not specified in available documentation for the LF2823NP-223. The ELF-18D650L operates from -20°C to 105°C.