ELF-18D650J Equivalent & Substitute Parts

Part Overview

The ELF-18D650J is a 2-line common mode choke (CMC) manufactured by Panasonic Electronic Components, designed for through-hole mounting applications requiring 1.3A current handling capability. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part features a typical DC resistance of 309mOhm and is packaged in a vertical 4-pin configuration with compact dimensions of 29.00mm × 21.00mm.

Substiute Parts

ELF-18D650J

Panasonic Electronic ComponentsIn Stock: 996ELF-18D650J Datasheet

Current PartRFQ

B82734R2132B030

EPCOS - TDK ElectronicsIn Stock: 2856B82734R2132B030 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELF-18D650J is determined by the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Current Rating: Must support minimum 1.3A
• Mounting Type: Must be through-hole compatible
• Package Configuration: Must be vertical 4-pin package
• Physical Compatibility: Dimensions must accommodate PCB layout constraints

The B82734R2132B030 qualifies as a substitute based on matching these core electrical and mechanical parameters. Both parts maintain 2-line common mode choke functionality, identical current rating of 1.3A, and compatible through-hole vertical 4-pin packaging.

Parameter Comparison

Engineering Selection Recommendations

The B82734R2132B030 is an active product manufactured by EPCOS - TDK Electronics and represents the primary substitute for the obsolete ELF-18D650J. Selection of this substitute is supported by:

• Product Availability: Active status ensures ongoing supply and manufacturing support
• Regulatory Compliance: ROHS3 compliant with REACH affected status, meeting current environmental standards
• Certification: Approved by ENEC, UR, and VDE agencies, providing third-party validation for safety and performance
• Electrical Compatibility: Identical 1.3A current rating and 2-line configuration maintain functional equivalence
• Mechanical Compatibility: Vertical 4-pin through-hole package with compatible pin spacing supports direct PCB layout integration

The B82734R2132B030 exhibits higher DC resistance (560mOhm typical versus 309mOhm) and provides specified inductance (47 mH @ 10 kHz) and operating temperature range (-40°C ~ 125°C), offering enhanced performance documentation for design verification.

Frequently Asked Questions (FAQ)

Q: Can the B82734R2132B030 be used as a direct replacement for the ELF-18D650J?

A: Yes. Both parts share identical current rating (1.3A), 2-line configuration, and vertical 4-pin through-hole package. The B82734R2132B030 is an active product with current manufacturing support, making it suitable for production applications where the ELF-18D650J is no longer available.

Q: What is the difference in DC resistance between these parts?

A: The ELF-18D650J has a typical DC resistance of 309mOhm, while the B82734R2132B030 has a typical DC resistance of 560mOhm. This difference should be evaluated in thermal and power dissipation calculations for your specific application.

Q: Are there physical dimension differences that affect PCB layout?

A: The B82734R2132B030 is slightly longer (32.50mm versus 29.00mm) and slightly shorter in height (31.00mm versus 34.60mm). Verify PCB layout clearances before implementation, particularly in space-constrained designs.

Q: What certifications does the substitute part carry?

A: The B82734R2132B030 holds ENEC, UR, and VDE approvals and is ROHS3 compliant. These certifications support use in regulated applications requiring third-party safety validation.

Q: Is the substitute part available in the same packaging format?

A: Both parts use vertical 4-pin through-hole packaging. The B82734R2132B030 is supplied in trays, while the original part was supplied in standard packaging. Verify tray compatibility with your assembly process.