ELF-19N006A Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-19N006A is a 2-line common mode choke manufactured by Panasonic Electronic Components, rated for 600mA maximum current with 1.1Ohm typical DC resistance. This through-hole component is designed for power line filtering applications in electronic equipment. The part is currently obsolete, making identification of equivalent substitute components essential for ongoing maintenance, repair, and new design implementations where legacy compatibility is required.

Substiute Parts

ELF-19N006A

Panasonic Electronic ComponentsIn Stock: 809ELF-19N006A Datasheet

Current PartRFQ

B82732R2601B030

EPCOS - TDK ElectronicsIn Stock: 885B82732R2601B030 Datasheet

SimilarRFQ

SS21V-R050540

KEMETIn Stock: 1294SS21V-R050540 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the ELF-19N006A are qualified based on the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Current Rating: Must support minimum 600mA operation
• Mounting Type: Must be through-hole vertical mount
• Package Configuration: Must use 4-pin vertical package
• DC Resistance: Should remain within acceptable operating range for power line filtering

The two substitute parts listed below meet these core electrical and mechanical requirements while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

B82732R2601B030 (EPCOS - TDK Electronics) is the primary substitute option. This part maintains the 600mA current rating specification of the original ELF-19N006A, operates across an extended temperature range (-40°C to 125°C), and carries ROHS3 compliance with multiple approval agencies (ENEC, UR, VDE). The component is currently in active production status with 832 units available in inventory.

SS21V-R050540 (KEMET) serves as an alternative substitute with the following considerations: current rating is reduced to 500mA, which represents a 17% decrease from the original 600mA specification. This part is ROHS3 compliant and actively produced, with 1232 units in inventory. DC resistance is elevated at 2.4Ohm compared to the original 1.1Ohm specification.

Selection between these substitutes depends on application current requirements and thermal operating conditions. The EPCOS B82732R2601B030 maintains full electrical compatibility with the original specification. The KEMET SS21V-R050540 requires verification that the 500mA current rating and 2.4Ohm DC resistance are acceptable for the target application.

Frequently Asked Questions (FAQ)

Q: Can the B82732R2601B030 be used as a direct replacement for the ELF-19N006A?

A: The B82732R2601B030 meets the core substitution criteria: 2-line configuration, 600mA current rating, through-hole vertical mount with 4-pin package. Physical dimensions differ slightly, requiring PCB layout verification. Both parts are rated for 250V AC operation.

Q: What is the impact of using the SS21V-R050540 with its 500mA current rating?

A: The SS21V-R050540 has a maximum current rating of 500mA versus the original 600mA specification. This part is suitable only for applications where the actual operating current does not exceed 500mA. Applications requiring the full 600mA capability must use the B82732R2601B030.

Q: Are there physical mounting differences between the substitute parts and the original?

A: All three parts use through-hole vertical mounting with 4-pin packages. However, footprint dimensions vary: the original ELF-19N006A measures 18.00mm x 27.50mm, the B82732R2601B030 measures 24.00mm x 16.50mm, and the SS21V-R050540 measures 20.50mm x 16.50mm. PCB layout must accommodate these dimensional differences.

Q: What compliance advantages do the substitute parts offer?

A: Both substitute parts are ROHS3 compliant, whereas the original ELF-19N006A is RoHS non-compliant. The B82732R2601B030 carries additional certifications from ENEC, UR, and VDE. Both substitutes are currently in active production status, ensuring long-term availability.

Q: How do DC resistance values compare across these parts?

A: The original ELF-19N006A specifies 1.1Ohm typical DC resistance. The B82732R2601B030 has 1.4Ohm typical resistance, and the SS21V-R050540 has 2.4Ohm resistance. Higher DC resistance increases power dissipation in the component; applications sensitive to heat generation should prioritize the B82732R2601B030.