ELC11D331F Equivalent & Substitute Parts

Part Overview

The ELC11D331F is a 330 µH unshielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 1 A continuous current with 350mOhm DC resistance. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The part features through-hole radial mounting with ferrite core construction and is RoHS compliant.

Substiute Parts

ELC11D331F

Panasonic Electronic ComponentsIn Stock: 728ELC11D331F Datasheet

Current PartRFQ

7447480331

Würth ElektronikIn Stock: 17597447480331 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELC11D331F is based on the following critical parameters:

• Inductance Value: 330 µH (exact match required)
• Tolerance: ±10% (standard tolerance maintained)
• Core Material & Shielding: Ferrite, unshielded (functional equivalence)
• Mounting Type: Through-hole radial configuration
• Package / Case: Radial, vertical cylinder form factor
• Current Rating: Minimum 1 A (equal or higher acceptable)
• DC Resistance: Maximum 350mOhm (lower or equal acceptable)

The Würth Elektronik 7447480331 qualifies as a direct substitute based on matching inductance, tolerance, core type, shielding, and mounting configuration. The substitute offers improved current handling (1.4 A vs. 1 A) and lower DC resistance (330mOhm vs. 350mOhm), making it functionally superior while maintaining mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ELC11D331F is obsolete and no longer in active production. The Würth Elektronik 7447480331 is an active product that meets all electrical and mechanical substitution criteria. Both components are RoHS compliant, with the substitute offering ROHS3 certification. The substitute provides enhanced specifications with higher current rating (1.4 A) and lower DC resistance (330mOhm), while maintaining identical inductance and tolerance values. Dimensional differences are minor and within typical PCB layout tolerances for through-hole radial components.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7447480331 directly replace the Panasonic ELC11D331F?

A: Yes. Both components share identical inductance (330 µH), tolerance (±10%), core type (ferrite, unshielded), and through-hole radial mounting configuration. The substitute meets all electrical and mechanical requirements for direct substitution.

Q: What are the dimensional differences between these parts?

A: The Panasonic ELC11D331F has a diameter of 0.453" (11.50mm) and height of 0.547" (13.90mm). The Würth Elektronik 7447480331 has a diameter of 0.413" (10.50mm) and height of 0.571" (14.50mm). These differences are within typical PCB layout tolerances for radial through-hole components.

Q: Does the higher current rating of the substitute affect compatibility?

A: No. The substitute's higher current rating (1.4 A vs. 1 A) and lower DC resistance (330mOhm vs. 350mOhm) represent improved performance characteristics that do not compromise compatibility. The component will operate safely in circuits designed for the original 1 A specification.

Q: Are both components RoHS compliant?

A: Yes. The Panasonic ELC11D331F is RoHS compliant. The Würth Elektronik 7447480331 is ROHS3 compliant, meeting current regulatory requirements.

Q: What is the inductance frequency test specification for each part?

A: The Panasonic ELC11D331F is tested at 10 kHz. The Würth Elektronik 7447480331 is tested at 1 kHz. Both maintain the specified 330 µH inductance value within their respective test frequencies.