ELF-22V050A Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-22V050A is a 2-line common mode choke manufactured by Panasonic Electronic Components, designed for through-hole mounting applications requiring 5A current handling capability. This component features a typical DC resistance of 38mOhm and is housed in a vertical 4-pin package with dimensions of 32.00mm × 23.00mm × 39.00mm (max height).

The ELF-22V050A is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

ELF-22V050A

Panasonic Electronic ComponentsIn Stock: 719ELF-22V050A Datasheet

Current PartRFQ

EV20-1.0-02-3M9

Schaffner EMC Inc.In Stock: 1392EV20-1.0-02-3M9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELF-22V050A 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: Must equal or exceed 5A
• DC Resistance: Must not exceed 38mOhm (Typ) to maintain equivalent performance
• Physical Dimensions: Must accommodate board layout constraints

Secondary Considerations:

• Product Status: Active status preferred for long-term availability
• RoHS Compliance: ROHS3 compliance recommended for regulatory alignment
• Operating Temperature Range: Availability of rated operating conditions

The substitute part EV20-1.0-02-3M9 (Schaffner EMC Inc.) shares the core functional architecture (2-line through-hole common mode choke with vertical 4-pin configuration) but operates within different electrical parameters. This part is suitable for applications where current requirements are lower (1A vs. 5A) and where the higher DC resistance (168mOhm vs. 38mOhm) is acceptable within the circuit design.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance): No equivalent substitute with identical electrical specifications (5A current rating and 38mOhm DCR) is provided in the available substitute list. The EV20-1.0-02-3M9 operates at reduced current capacity (1A) and elevated DC resistance (168mOhm), making it unsuitable for applications requiring the full 5A rating of the original part.

For Functional Substitution (Modified Application Context): The EV20-1.0-02-3M9 may be considered only in applications where:

• Circuit current requirements do not exceed 1A
• Higher DC resistance (168mOhm) is acceptable within power budget and thermal constraints
• Smaller physical footprint (21.00mm × 16.00mm vs. 32.00mm × 23.00mm) is compatible with board layout

Compliance Considerations: The EV20-1.0-02-3M9 offers ROHS3 compliance and active product status, providing advantages for new designs or systems requiring regulatory alignment. The original ELF-22V050A is RoHS non-compliant and obsolete, limiting its use in new applications.

Frequently Asked Questions (FAQ)

Q: Can the EV20-1.0-02-3M9 directly replace the ELF-22V050A in existing designs?

A: No. The EV20-1.0-02-3M9 has a maximum current rating of 1A compared to the ELF-22V050A's 5A rating. Direct substitution is only possible if the circuit operates at or below 1A. Additionally, the DC resistance is significantly higher (168mOhm vs. 38mOhm), which will increase power dissipation and may affect circuit performance.

Q: Are the physical dimensions compatible?

A: Both parts use vertical 4-pin through-hole packages, but dimensions differ. The EV20-1.0-02-3M9 is smaller (21.00mm × 16.00mm × 26.00mm max) compared to the ELF-22V050A (32.00mm × 23.00mm × 39.00mm max). Verify that the smaller footprint accommodates your PCB layout and that no mechanical interference occurs.

Q: What is the impact of higher DC resistance on circuit performance?

A: The EV20-1.0-02-3M9's 168mOhm DCR is 4.4 times higher than the ELF-22V050A's 38mOhm. This increases resistive losses, generates additional heat, and may reduce filtering effectiveness depending on the application. Thermal and performance analysis is required for applications sensitive to these parameters.

Q: Does the EV20-1.0-02-3M9 offer better compliance status?

A: Yes. The EV20-1.0-02-3M9 is ROHS3 compliant and carries active product status, whereas the ELF-22V050A is RoHS non-compliant and obsolete. For new designs or systems requiring regulatory compliance, the EV20-1.0-02-3M9 is preferable from a compliance perspective.

Q: What is the operating temperature range for each part?

A: The ELF-22V050A does not specify an operating temperature range in available documentation. The EV20-1.0-02-3M9 operates from -25°C to 100°C. Verify temperature requirements for your application before substitution.

Q: Are there any voltage rating differences?

A: The EV20-1.0-02-3M9 specifies a 250V AC voltage rating. The ELF-22V050A does not provide voltage rating specifications. Confirm voltage compatibility with your circuit design requirements.