ELF-17N005A Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-17N005A is a 2-line common mode choke manufactured by Panasonic Electronic Components, rated for 500mA maximum current with a typical DC resistance of 1.324Ohm. This through-hole component is designed for power line filtering applications. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

ELF-17N005A

Panasonic Electronic ComponentsIn Stock: 1111ELF-17N005A Datasheet

Current PartRFQ

B82722J2501N001

EPCOS - TDK ElectronicsIn Stock: 774B82722J2501N001 Datasheet

SimilarRFQ

SS11VL-R05350

KEMETIn Stock: 1690SS11VL-R05350 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the ELF-17N005A are qualified based on the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Current Rating: Must support minimum 500mA
• Mounting Type: Must be through-hole
• Package Configuration: Must be vertical, 4-pin package
• DC Resistance: Must be within acceptable operating range (1.2Ohm to 1.8Ohm typical)

The two substitute parts listed below meet these core electrical and mechanical requirements and are available as active products from current manufacturers.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturer support and ROHS3 compliance, addressing the obsolescence and regulatory status of the original ELF-17N005A.

B82722J2501N001 (EPCOS - TDK Electronics) carries ENEC, UR, and VDE approvals and operates across an extended temperature range of -40°C to 125°C. DC resistance of 1.2Ohm is lower than the original part, resulting in reduced power dissipation. Physical dimensions are larger (23.30mm x 16.10mm with 25.40mm height), requiring PCB layout verification for space constraints.

SS11VL-R05350 (KEMET) provides the closest physical footprint with dimensions of 22.00mm x 14.50mm and height of 19.50mm. DC resistance of 1.8Ohm is higher than the original specification. Operating temperature range is -25°C to 120°C. This part is REACH unaffected.

Selection between these two substitutes depends on available PCB space, thermal operating requirements, and regulatory compliance needs specific to the application.

Frequently Asked Questions (FAQ)

Q: Can the B82722J2501N001 and SS11VL-R05350 be used interchangeably with the ELF-17N005A?

A: Both parts meet the core electrical requirements (2-line configuration, 500mA current rating, through-hole mounting, vertical 4-pin package). However, physical dimensions differ. The B82722J2501N001 is larger, while the SS11VL-R05350 is more compact. PCB layout compatibility must be verified before substitution.

Q: What is the impact of different DC resistance values?

A: The B82722J2501N001 has lower DCR (1.2Ohm vs. 1.324Ohm), reducing resistive losses. The SS11VL-R05350 has higher DCR (1.8Ohm), increasing power dissipation. Both remain within acceptable operating ranges for 500mA applications but will affect thermal performance differently.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both B82722J2501N001 and SS11VL-R05350 are ROHS3 compliant, addressing the RoHS non-compliance status of the obsolete ELF-17N005A.

Q: What certifications do the substitute parts carry?

A: The B82722J2501N001 carries ENEC, UR, and VDE approvals. The SS11VL-R05350 does not list specific approval agencies in the provided data. Certification requirements for your application should guide selection.

Q: Do the substitute parts have different operating temperature ranges?

A: Yes. The B82722J2501N001 operates from -40°C to 125°C, while the SS11VL-R05350 operates from -25°C to 120°C. Applications requiring extended low-temperature operation should specify the EPCOS part.