ELF-22V035C Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-22V035C is a 2-line common mode choke manufactured by Panasonic Electronic Components, rated for 4.6A maximum current with a typical DC resistance of 69mOhm. This through-hole component is designed for electromagnetic interference (EMI) filtering applications in power line circuits.

The ELF-22V035C has reached obsolete product status. Identifying functionally equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

ELF-22V035C

Panasonic Electronic ComponentsIn Stock: 736ELF-22V035C Datasheet

Current PartRFQ

EV20-0.8-02-5M6

Schaffner EMC Inc.In Stock: 1498EV20-0.8-02-5M6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELF-22V035C is determined by the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Mounting Type: Must be through-hole
• Package Configuration: Must be vertical, 4 PC pin
• Current Rating: Substitute must support minimum 4.6A operation
• DC Resistance: Substitute DCR must not exceed design limits for the application circuit
• Physical Dimensions: Must fit within or be compatible with PCB layout constraints

The EV20-0.8-02-5M6 manufactured by Schaffner EMC Inc. qualifies as a substitute based on matching the 2-line, through-hole, vertical 4 PC pin configuration. However, the current rating differential (800mA vs. 4.6A) and DC resistance variance (245mOhm vs. 69mOhm) require circuit-level evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The EV20-0.8-02-5M6 is an active product with current manufacturing support and ROHS3 compliance, providing supply chain continuity advantages over the obsolete ELF-22V035C.

Physical dimensions of the EV20-0.8-02-5M6 are smaller in all axes, which may require PCB layout verification to confirm fit within existing mounting footprints designed for the ELF-22V035C.

The current rating differential (800mA substitute vs. 4.6A original) represents a significant reduction in maximum current capacity. Selection of this substitute is appropriate only for applications where the circuit operates at or below 800mA.

The increased DC resistance of the EV20-0.8-02-5M6 (245mOhm vs. 69mOhm) will result in higher power dissipation at equivalent current levels. Thermal analysis of the application circuit is necessary to confirm acceptable operating conditions.

The EV20-0.8-02-5M6 provides specified AC voltage rating (250V) and operating temperature range (-25°C ~ 100°C), whereas these parameters are not specified for the ELF-22V035C.

Frequently Asked Questions (FAQ)

Q: Can the EV20-0.8-02-5M6 directly replace the ELF-22V035C in all applications?

A: No. While both components share the same 2-line, through-hole, vertical 4 PC pin configuration, the EV20-0.8-02-5M6 has a maximum current rating of 800mA compared to the ELF-22V035C's 4.6A rating. Substitution is valid only for circuits operating at or below 800mA. Additionally, physical dimensions differ, requiring PCB layout verification.

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

A: The EV20-0.8-02-5M6 has a DC resistance of 245mOhm (typical) versus 69mOhm (typical) for the ELF-22V035C. At equivalent current levels, higher DC resistance results in increased power dissipation (P = I²R). For a 1A circuit, the substitute dissipates approximately 4.6 times more power than the original part. Thermal design review is required.

Q: Are there physical mounting compatibility concerns?

A: Yes. The EV20-0.8-02-5M6 is smaller in all dimensions (21.00mm L x 16.00mm W x 26.00mm H) compared to the ELF-22V035C (32.00mm L x 23.00mm W x 39.00mm H). While both use vertical 4 PC pin packages, PCB footprint and clearance verification is necessary to confirm fit within existing designs.

Q: What compliance advantages does the substitute offer?

A: The EV20-0.8-02-5M6 is ROHS3 compliant and carries active product status with current manufacturing support. The ELF-22V035C is obsolete with no specified RoHS compliance status. For new designs or production requiring regulatory compliance documentation, the substitute provides current certification.

Q: How should I evaluate whether this substitute is suitable for my application?

A: Verify that your circuit operates at or below 800mA maximum current. Confirm that the smaller physical dimensions fit within your PCB layout. Calculate power dissipation at your operating current using the 245mOhm DC resistance value and confirm thermal management is adequate. Validate that the 250V AC rating meets your voltage requirements.