ELC-10D331E Equivalent & Substitute Parts

Part Overview

The ELC-10D331E is a 330 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 900 mA continuous current with 320mOhm DC resistance. This through-hole radial component is designed for general-purpose filtering and energy storage applications in power supply circuits.

The ELC-10D331E is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this inductor specification.

Substiute Parts

ELC-10D331E

Panasonic Electronic ComponentsIn Stock: 1026ELC-10D331E Datasheet

Current PartRFQ

7447480331

Würth ElektronikIn Stock: 17597447480331 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELC-10D331E must satisfy the following core electrical and mechanical criteria:

Electrical Requirements:

• Inductance value: 330 µH (±10% tolerance acceptable)
• Current rating: minimum 900 mA continuous
• DC resistance: within acceptable operating range for the application
• Shielding type: unshielded (to match electromagnetic behavior)

Mechanical Requirements:

• Mounting type: through-hole
• Package / case: radial, vertical cylinder configuration
• Physical dimensions: compatible with PCB footprint constraints

Compliance Requirements:

• RoHS3 compliance maintained
• Moisture sensitivity level: 1 (unlimited)

The Würth Elektronik 7447480331 meets these substitution criteria with equivalent inductance, superior current rating (1.4 A vs. 900 mA), and active product status ensuring ongoing availability.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7447480331 is the qualified substitute for the ELC-10D331E based on the following factors:

Electrical Compatibility: Both components provide 330 µH inductance with ±10% tolerance. The substitute's 1.4 A current rating exceeds the original 900 mA specification, providing design margin. DC resistance values (320mOhm vs. 330mOhm max) are equivalent for practical circuit operation.

Mechanical Compatibility: Both components use through-hole radial, vertical cylinder mounting. Physical dimensions are comparable (13.00mm vs. 10.50mm diameter; 15.00mm vs. 14.50mm height), with the substitute being slightly more compact.

Compliance & Availability: The substitute maintains ROHS3 compliance and carries active product status, ensuring long-term supply chain availability. The original ELC-10D331E is obsolete, making substitution necessary for new production or repair applications.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7447480331 be used as a direct replacement for the ELC-10D331E?

A: Yes. Both components share identical inductance (330 µH ±10%), unshielded configuration, through-hole mounting, and radial vertical cylinder package. The substitute's higher current rating (1.4 A vs. 900 mA) and active product status make it suitable for direct substitution.

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

A: The ELC-10D331E measures 13.00mm diameter × 15.00mm height. The 7447480331 measures 10.50mm diameter × 14.50mm height. The substitute is slightly more compact and will fit existing PCB footprints designed for the original component.

Q: Are there any DC resistance differences that affect circuit performance?

A: The ELC-10D331E specifies 320mOhm DCR, while the 7447480331 specifies 330mOhm maximum. This 10mOhm difference is negligible for most filtering and energy storage applications and will not significantly impact circuit behavior.

Q: Does the substitute maintain the same RoHS compliance?

A: Yes. Both the ELC-10D331E and 7447480331 are ROHS3 compliant with moisture sensitivity level 1 (unlimited). Compliance certifications are maintained in the substitution.

Q: Why is the substitute rated for higher current (1.4 A vs. 900 mA)?

A: The Würth Elektronik component uses a drum core ferrite design, which provides improved thermal performance and current handling compared to the original wirewound design. This higher rating provides additional design margin without affecting compatibility.