ELF-24V050A Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ELF-24V050A is a 2-line common mode choke (CMC) designed for through-hole mounting with a maximum current rating of 5A and typical DC resistance of 28mOhm. Manufactured by Panasonic Electronic Components, this component is classified as obsolete product status. Due to its obsolete designation, identifying equivalent and substitute parts is essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

ELF-24V050A

Panasonic Electronic ComponentsIn Stock: 1172ELF-24V050A Datasheet

Current PartRFQ

B82725J2602N020

EPCOS - TDK ElectronicsIn Stock: 2344B82725J2602N020 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELF-24V050A is determined by the following critical parameters:

• Number of Lines: Must remain 2-line configuration for functional equivalence
• Mounting Type: Through-hole mounting required for PCB compatibility
• Package / Case: Vertical, 4 PC pin configuration for pin layout compatibility
• Current Rating: Substitute must support minimum 5A operation
• DC Resistance: Substitute DCR must not significantly exceed 28mOhm to maintain electrical performance
• Physical Dimensions: Substitute footprint must be compatible with existing PCB layouts

The B82725J2602N020 from EPCOS - TDK Electronics meets these substitution criteria as a 2-line common mode choke with through-hole vertical mounting, 4 PC pin configuration, and current rating of 6A with 30mOhm typical DCR.

Parameter Comparison

Engineering Selection Recommendations

The B82725J2602N020 is suitable as a substitute for the obsolete ELF-24V050A based on the following factors:

• Active Product Status: The B82725J2602N020 maintains active product status with ongoing manufacturer support and availability, addressing the obsolescence of the original part.
• Compliance Upgrade: The substitute achieves ROHS3 compliance, providing environmental and regulatory advantages over the non-compliant original part.
• Certification Coverage: The B82725J2602N020 carries ENEC, UR, and VDE approvals, establishing third-party validation for safety and performance standards.
• Electrical Performance: The 6A current rating and 30mOhm typical DCR exceed the original 5A and 28mOhm specifications, providing operational margin.
• Mechanical Compatibility: Both parts maintain identical 2-line, through-hole, vertical 4 PC pin configurations, ensuring pin-for-pin compatibility.

Frequently Asked Questions (FAQ)

Q: Can the B82725J2602N020 be used as a direct replacement for the ELF-24V050A?

A: Yes. Both components share identical functional architecture (2-line common mode choke), mounting type (through-hole), and package configuration (vertical, 4 PC pin). The substitute meets or exceeds the electrical specifications of the original part.

Q: What are the physical dimension differences between these parts?

A: The ELF-24V050A measures 37.00mm L x 24.00mm W x 42.50mm H, while the B82725J2602N020 measures 40.40mm L x 21.50mm W x 40.00mm H. PCB layout verification is required to confirm clearance compatibility in existing designs.

Q: Does the higher current rating of the B82725J2602N020 (6A vs. 5A) affect circuit operation?

A: No. A higher current rating indicates greater thermal and electrical capacity. The substitute will operate safely at the original 5A design current with improved margin.

Q: What is the significance of the RoHS compliance difference?

A: The B82725J2602N020 achieves ROHS3 compliance, eliminating restricted substances present in the non-compliant ELF-24V050A. This is advantageous for new designs and regulatory requirements in restricted markets.

Q: Are there any packaging differences to consider?

A: The ELF-24V050A is supplied in standard packaging, while the B82725J2602N020 is supplied in trays. Tray packaging is standard for active production components and does not affect component functionality or performance.