ELF-19N010A Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-19N010A is a 2-line common mode choke manufactured by Panasonic Electronic Components, rated for 1A maximum current with 465mOhm typical DC resistance. This through-hole component is designed for power line filtering applications in electronic equipment. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

ELF-19N010A

Panasonic Electronic ComponentsIn Stock: 793ELF-19N010A Datasheet

Current PartRFQ

B82732R2102B030

EPCOS - TDK ElectronicsIn Stock: 3873B82732R2102B030 Datasheet

SimilarRFQ

SS21V-R080200

KEMETIn Stock: 1948SS21V-R080200 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ELF-19N010A 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: Must support minimum 1A operation
• DC Resistance: Should be comparable to 465mOhm typical specification
• Mechanical Compatibility: Physical dimensions must accommodate PCB layout constraints

The identified substitute parts meet these core substitution criteria while maintaining functional equivalence for common mode choke applications.

Parameter Comparison

Engineering Selection Recommendations

B82732R2102B030 (EPCOS - TDK Electronics)

This substitute maintains full current rating equivalence at 1A and is the closest match in DC resistance specification at 580mOhm typical. The part is active in production with ROHS3 compliance and carries multiple approval agencies (ENEC, UR, VDE). Operating temperature range extends to -40°C, providing broader environmental coverage than the original part. Physical dimensions are slightly larger, requiring verification of PCB layout compatibility.

SS21V-R080200 (KEMET)

This substitute operates at 800mA maximum current, which is 20% below the original 1A rating. DC resistance is elevated at 800mOhm typical, representing a 72% increase from the original specification. The part is active in production with ROHS3 compliance and 250V AC voltage rating. Physical dimensions are more compact than the EPCOS alternative. Selection of this part requires confirmation that the 800mA current limit and higher DC resistance are acceptable for the target application.

Frequently Asked Questions (FAQ)

Q: Can B82732R2102B030 be used as a direct replacement for ELF-19N010A?

A: B82732R2102B030 meets the core substitution criteria: 2-line configuration, through-hole mounting, vertical 4 PC pin package, and 1A current rating. Physical dimensions differ slightly (24.00mm x 16.50mm vs. 18.00mm x 27.50mm), requiring PCB layout verification. DC resistance is comparable at 580mOhm versus 465mOhm.

Q: What are the limitations of using SS21V-R080200 as a substitute?

A: SS21V-R080200 has a reduced current rating of 800mA compared to the original 1A specification. DC resistance is significantly higher at 800mOhm. This part is suitable only for applications where the lower current rating and increased resistance are within design tolerances.

Q: Are there mechanical compatibility concerns with the substitute parts?

A: Both substitute parts maintain the vertical, 4 PC pin through-hole package configuration. However, physical dimensions differ from the original part. B82732R2102B030 is larger in length (24.00mm vs. 18.00mm), while SS21V-R080200 is more compact (20.50mm x 16.50mm). PCB layout and mounting clearance must be verified before implementation.

Q: What is the RoHS compliance status of the substitute parts?

A: Both B82732R2102B030 and SS21V-R080200 are ROHS3 compliant, whereas the original ELF-19N010A is RoHS non-compliant. This represents an improvement in environmental compliance for new designs.

Q: How do operating temperature ranges compare?

A: B82732R2102B030 operates from -40°C to 125°C, providing the widest temperature range. SS21V-R080200 operates from -25°C to 120°C. The original part specifications do not include operating temperature data.