ELF-15N002A Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-15N002A is a 2-line common mode choke manufactured by Panasonic Electronic Components, designed for through-hole mounting applications with a 200mA current rating and 7.543Ohm typical DC resistance. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The through-hole vertical configuration with 4-pin package design serves EMI filtering applications in power line environments.

Substiute Parts

ELF-15N002A

Panasonic Electronic ComponentsIn Stock: 707ELF-15N002A Datasheet

Current PartRFQ

SS21V-030930

KEMETIn Stock: 785SS21V-030930 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELF-15N002A is determined by the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Mounting Type: Must be through-hole vertical mount
• Package / Case: Must be 4-pin vertical package
• Current Rating: Substitute must meet or exceed 200mA maximum rating
• DC Resistance: Substitute DCR must be compatible with circuit design requirements
• Mechanical Compatibility: Physical dimensions and pin configuration must accommodate existing PCB layouts

The KEMET SS21V-030930 qualifies as a substitute based on matching the 2-line through-hole vertical 4-pin configuration. The substitute provides enhanced specifications including higher current rating (300mA vs 200mA) and lower DC resistance (5.9Ohm vs 7.543Ohm), with active product status and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The SS21V-030930 serves as an active substitute for the obsolete ELF-15N002A. Selection should be based on the following factors:

Product Status: The ELF-15N002A is obsolete with no ongoing manufacturing. The SS21V-030930 maintains active product status with current availability.

Compliance Requirements: The SS21V-030930 is RoHS3 compliant, whereas the ELF-15N002A is RoHS non-compliant. Applications requiring RoHS compliance must use the substitute part.

Electrical Performance: The substitute provides superior electrical characteristics with 300mA current rating versus 200mA, and lower DC resistance of 5.9Ohm compared to 7.543Ohm. These improvements reduce power dissipation and thermal stress in the circuit.

Physical Compatibility: Dimensional differences exist between the parts. The SS21V-030930 is larger in length (20.50mm vs 15.00mm) and height (24.50mm vs 22.50mm), while narrower in width (16.50mm vs 22.70mm). PCB layout verification is required to confirm mechanical fit.

Certifications: The SS21V-030930 includes AC voltage rating (250V) and operating temperature range (-25°C ~ 120°C), providing defined performance boundaries absent in the original part specification.

Frequently Asked Questions (FAQ)

Q: Can the SS21V-030930 directly replace the ELF-15N002A without circuit modification?

A: The SS21V-030930 matches the critical functional parameters (2-line, through-hole, 4-pin vertical configuration) and exceeds the electrical requirements. However, physical dimensions differ. PCB layout must accommodate the larger footprint (20.50mm L x 16.50mm W vs 15.00mm L x 22.70mm W). Pin-to-pin compatibility must be verified against the original design.

Q: What are the key differences in electrical performance?

A: The SS21V-030930 provides higher current capacity (300mA vs 200mA) and lower DC resistance (5.9Ohm vs 7.543Ohm). These characteristics result in reduced power loss and improved thermal performance compared to the ELF-15N002A.

Q: Is the substitute suitable for RoHS-compliant applications?

A: Yes. The SS21V-030930 is RoHS3 compliant, making it suitable for applications requiring RoHS compliance. The original ELF-15N002A is RoHS non-compliant and cannot be used in such applications.

Q: What is the impact of the dimensional differences?

A: The SS21V-030930 has a larger length and height but narrower width. Existing PCB designs must be evaluated for spatial clearance. The vertical 4-pin configuration remains consistent, but board layout modifications may be necessary.

Q: Are there any environmental or temperature considerations?

A: The SS21V-030930 specifies an operating temperature range of -25°C to 120°C and 250V AC voltage rating. The ELF-15N002A does not provide these specifications. Applications operating outside the defined range of the substitute require additional evaluation.