ELF-22V025C Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-22V025C is a 2-line common mode choke manufactured by Panasonic Electronic Components, designed for through-hole mounting applications requiring 2.5A current handling capability. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity. The part features a typical DC resistance of 115mOhm and vertical 4-pin configuration suitable for power line filtering applications.

Substiute Parts

ELF-22V025C

Panasonic Electronic ComponentsIn Stock: 1215ELF-22V025C Datasheet

Current PartRFQ

EV35-3.0-02-10M

Schaffner EMC Inc.In Stock: 1409EV35-3.0-02-10M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELF-22V025C is determined by the following critical parameters:

Primary Substitution Criteria:

• Number of Lines: 2 (must match)
• Mounting Type: Through Hole (must match)
• Package Configuration: Vertical, 4 PC Pin (must match)
• Current Rating: Minimum 2.5A (equal or greater)
• DC Resistance: Comparable performance (lower or equal DCR preferred)

Secondary Compatibility Factors:

• Physical dimensions must accommodate PCB layout constraints
• Voltage rating compatibility with application requirements
• Operating temperature range suitability

The EV35-3.0-02-10M from Schaffner EMC Inc. meets these substitution criteria as a 2-line through-hole common mode choke with vertical 4-pin configuration and current rating of 3A, exceeding the 2.5A requirement of the original part.

Parameter Comparison

Engineering Selection Recommendations

The EV35-3.0-02-10M qualifies as a direct substitute for the obsolete ELF-22V025C based on matching functional topology (2-line common mode choke), identical mounting configuration (through-hole vertical 4-pin), and superior electrical performance characteristics. The substitute part provides higher current capacity (3A vs. 2.5A) and lower DC resistance (72mOhm vs. 115mOhm), delivering improved efficiency in power line filtering applications.

The EV35-3.0-02-10M is currently in active production status with ROHS3 compliance, addressing regulatory requirements that may not be met by the obsolete original part. Physical dimensions are slightly larger; PCB layout verification is required to confirm accommodation within existing board space constraints.

Frequently Asked Questions (FAQ)

Q: Can the EV35-3.0-02-10M directly replace the ELF-22V025C without circuit modification?

A: Yes, the substitute part maintains identical electrical topology (2-line common mode choke) and mounting configuration (through-hole vertical 4-pin). The higher current rating and lower DC resistance of the substitute provide equivalent or improved performance. PCB layout must accommodate the slightly larger physical dimensions (36.00mm x 24.50mm vs. 32.00mm x 23.00mm).

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

A: The primary differences are manufacturer (Panasonic vs. Schaffner), product status (obsolete vs. active), current capacity (2.5A vs. 3A), DC resistance (115mOhm vs. 72mOhm), and regulatory compliance (RoHS non-compliant vs. ROHS3 compliant). Physical dimensions differ slightly, with the substitute being marginally larger.

Q: Is the substitute part suitable for applications requiring RoHS compliance?

A: Yes. The EV35-3.0-02-10M carries ROHS3 compliance certification, making it suitable for applications with RoHS regulatory requirements. The original ELF-22V025C is RoHS non-compliant.

Q: Are there any thermal or environmental considerations for substitution?

A: The EV35-3.0-02-10M specifies an operating temperature range of -25°C to 100°C. The original part does not provide temperature specifications. Confirm that this range meets application requirements.

Q: What is the impact of lower DC resistance in the substitute part?

A: Lower DC resistance (72mOhm vs. 115mOhm) reduces power dissipation and heat generation in the substitute part, improving overall circuit efficiency and thermal performance.