ELF-14M100E Equivalent & Substitute Parts

Part Overview

The ELF-14M100E is a 2-line common mode choke (CMC) manufactured by Panasonic Electronic Components, designed for through-hole mounting applications requiring 1A current handling capability. This component features a typical DC resistance of 250mOhm and is housed in a vertical 4-pin package with dimensions of 16.00mm × 14.50mm × 12.00mm maximum height.

The ELF-14M100E is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

ELF-14M100E

Panasonic Electronic ComponentsIn Stock: 734ELF-14M100E Datasheet

Current PartRFQ

B82730G3102A020

EPCOS - TDK ElectronicsIn Stock: 2331B82730G3102A020 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELF-14M100E is determined by the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Current Rating (Max): Must support minimum 1A
• Mounting Type: Must be through-hole compatible
• Package Configuration: Must accommodate 4-pin through-hole pinout
• Physical Dimensions: Must fit within or closely match the 16.00mm × 14.50mm × 12.00mm envelope
• DC Resistance (DCR): Should remain within acceptable operating range (250mOhm typical baseline)

The substitute part B82730G3102A020 (EPCOS - TDK Electronics) meets these core substitution criteria. Both components are 2-line common mode chokes rated for 1A maximum current, feature through-hole mounting, and share compatible physical dimensions and pin configurations.

Parameter Comparison

Engineering Selection Recommendations

The B82730G3102A020 is an active product from EPCOS - TDK Electronics and represents a viable substitute for the obsolete ELF-14M100E. Both components share identical current ratings (1A), line configuration (2-line), and mounting methodology (through-hole).

Key considerations for selection:

• Product Status: The substitute part is active and currently in production, ensuring long-term availability and supply chain stability.
• Compliance & Certifications: The B82730G3102A020 carries UR and VDE approvals, along with RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.
• DC Resistance Variance: The substitute exhibits 340mOhm typical DCR compared to 250mOhm for the original part. This 90mOhm increase must be evaluated against circuit design tolerances and thermal performance requirements.
• Package Orientation: The substitute uses horizontal pin configuration versus the vertical configuration of the original part. PCB layout compatibility must be verified.
• Physical Dimensions: Dimensional differences (16.50mm × 15.00mm versus 16.00mm × 14.50mm) are minimal and typically accommodate standard through-hole spacing.

Frequently Asked Questions (FAQ)

Q: Can the B82730G3102A020 directly replace the ELF-14M100E without circuit modification?

A: Both components meet the core functional requirements (2-line, 1A rating, through-hole mounting). However, the 90mOhm increase in DC resistance and the change from vertical to horizontal pin orientation require PCB layout verification and thermal analysis to confirm compatibility with your specific application.

Q: What is the significance of the DC Resistance difference between these parts?

A: The ELF-14M100E has 250mOhm typical DCR while the B82730G3102A020 has 340mOhm typical DCR. This difference affects power dissipation and heat generation. Applications with tight thermal budgets or high-frequency operation must evaluate whether the increased resistance remains within acceptable limits.

Q: Are there differences in operating temperature ranges?

A: The ELF-14M100E does not specify an operating temperature range in the provided data. The B82730G3102A020 operates from -40°C to 125°C. Verify that this range meets your application requirements.

Q: What does the package orientation change mean for PCB design?

A: The ELF-14M100E uses vertical pin configuration while the B82730G3102A020 uses horizontal configuration. This affects component placement and trace routing on the PCB. Footprint compatibility must be confirmed before implementation.

Q: Is the B82730G3102A020 RoHS compliant?

A: Yes, the B82730G3102A020 is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the voltage rating for the substitute part?

A: The B82730G3102A020 is rated for 300V AC. Ensure this voltage rating is appropriate for your application circuit.