ELF-20N013A Common Mode Choke Equivalent & Substitute Parts

Part Overview

The Panasonic ELF-20N013A is a 2-line common mode choke (CMC) designed for through-hole mounting with a maximum current rating of 1.3A and typical DC resistance of 317mOhm. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The ELF-20N013A serves EMI filtering applications in power line circuits where common mode noise suppression is required.

Substiute Parts

ELF-20N013A

Panasonic Electronic ComponentsIn Stock: 890ELF-20N013A Datasheet

Current PartRFQ

B82734R2132B030

EPCOS - TDK ElectronicsIn Stock: 2856B82734R2132B030 Datasheet

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EV20-0.5-02-18M

Schaffner EMC Inc.In Stock: 1957EV20-0.5-02-18M Datasheet

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SS26V-100250

KEMETIn Stock: 1054SS26V-100250 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the ELF-20N013A is determined by the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Current Rating: Minimum 1.0A to 1.3A capability
• Mounting Type: Through-hole vertical orientation with 4-pin package
• Physical Dimensions: Compatible footprint within specified length, width, and height ranges
• DC Resistance: Comparable DCR performance (317mOhm baseline)

The three substitute parts listed below meet these core electrical and mechanical criteria. Variations in inductance values, voltage ratings, and operating temperature ranges reflect different application-specific designs while maintaining functional equivalence for common mode filtering in the specified current range.

Parameter Comparison

Engineering Selection Recommendations

B82734R2132B030 (EPCOS - TDK Electronics)

This substitute maintains the highest electrical compatibility with the ELF-20N013A. It provides identical 1.3A current rating and 2-line configuration. The B82734R2132B030 is actively manufactured, ROHS3 compliant, and carries multiple approval certifications (ENEC, UR, VDE). Operating temperature range extends to -40°C ~ 125°C, supporting wider environmental conditions. DCR is higher at 560mOhm compared to the original 317mOhm specification. Physical dimensions are comparable with 31.00mm maximum height. This part is suitable for applications requiring full electrical equivalence and modern compliance standards.

SS26V-100250 (KEMET)

This substitute provides 1.0A current rating, meeting the lower end of the 1.3A specification. The SS26V-100250 is actively produced and ROHS3 compliant with an extended operating temperature range of -25°C ~ 120°C. DCR is 700mOhm, representing increased resistance compared to the original part. Physical footprint is compact at 26.00mm length and 30.50mm height. This option is appropriate for applications where current requirements do not exceed 1.0A and space constraints favor smaller dimensions.

EV20-0.5-02-18M (Schaffner EMC Inc.)

This substitute is rated for 500mA maximum current, representing a significant reduction from the 1.3A specification. The EV20-0.5-02-18M is actively manufactured and ROHS3 compliant with operating temperature range of -25°C ~ 100°C. DCR is 725mOhm. Physical dimensions are the most compact of the three substitutes at 21.00mm length and 26.00mm height. This part is suitable only for applications with current requirements not exceeding 500mA.

Frequently Asked Questions (FAQ)

Q: Can the EV20-0.5-02-18M substitute for the ELF-20N013A in all applications?

A: No. The EV20-0.5-02-18M is rated for 500mA maximum current, while the ELF-20N013A is rated for 1.3A. This substitute is only suitable for circuits where the actual operating current does not exceed 500mA. Exceeding this rating will cause component failure.

Q: What is the primary difference between the B82734R2132B030 and SS26V-100250?

A: The B82734R2132B030 maintains the full 1.3A current rating of the original part, while the SS26V-100250 is rated for 1.0A. The B82734R2132B030 also provides a wider operating temperature range (-40°C to 125°C versus -25°C to 120°C) and carries additional approval certifications. Choose B82734R2132B030 for applications requiring the full 1.3A specification.

Q: Are all substitute parts through-hole mounted with the same pin configuration?

A: Yes. All three substitute parts are through-hole mounted with vertical orientation and 4-pin package configuration, matching the ELF-20N013A footprint requirements. However, physical dimensions vary slightly. Verify PCB layout compatibility before final selection.

Q: Why is the DC resistance higher in the substitute parts?

A: The substitute parts are from different manufacturers with different design specifications. Higher DCR values are typical in modern common mode chokes and do not prevent functional substitution. Verify that the increased resistance does not exceed circuit power dissipation limits in your specific application.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three substitute parts are ROHS3 compliant. The original ELF-20N013A is RoHS non-compliant. If RoHS compliance is required for your application, any of the three substitutes will satisfy this requirement.

Q: What is the impact of different operating temperature ranges?

A: The B82734R2132B030 supports the widest temperature range (-40°C to 125°C), making it suitable for industrial and automotive applications. The SS26V-100250 and EV20-0.5-02-18M support narrower ranges. Select based on your application's environmental operating conditions.

Q: Can I use these parts interchangeably on the same PCB?

A: Physical dimensions differ between parts. While all maintain 4-pin vertical through-hole configuration, verify that hole spacing and component height do not interfere with adjacent components or enclosure clearances. Measure actual PCB layout requirements before substitution.