ELC-12D331E Equivalent & Substitute Parts

Part Overview

The ELC-12D331E is a 330 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 1.34 A with 300mOhm DC resistance. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity. Substitute parts must maintain the same inductance value, tolerance, mounting configuration, and current handling capability to ensure direct compatibility in existing circuit designs.

Substiute Parts

ELC-12D331E

Panasonic Electronic ComponentsIn Stock: 1144ELC-12D331E Datasheet

Current PartRFQ

AIUR-06-331K

Abracon LLCIn Stock: 4756AIUR-06-331K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELC-12D331E are qualified based on the following criteria:

• Inductance Value: 330 µH ±10% tolerance
• Current Rating: Minimum 1.3 A (within 97% of original specification)
• DC Resistance: Maximum 394mOhm (acceptable variance for wirewound construction)
• Mounting Configuration: Through-hole radial, vertical cylinder package
• Shielding: Unshielded construction
• RoHS Compliance: ROHS3 compliant for regulatory alignment

The AIUR-06-331K from Abracon LLC meets all substitution criteria. While it features a drum core ferrite construction versus the original wirewound design, both configurations deliver equivalent electrical performance within the specified tolerance band and current rating parameters.

Parameter Comparison

Engineering Selection Recommendations

The AIUR-06-331K qualifies as a direct substitute for the ELC-12D331E based on electrical equivalence and regulatory compliance. Both components are ROHS3 compliant and maintain identical inductance and tolerance specifications. The Abracon part carries active product status, ensuring long-term availability and supply chain stability compared to the obsolete Panasonic component.

The AIUR-06-331K exhibits slightly higher DC resistance (394mOhm maximum versus 300mOhm) and marginally lower current rating (1.3 A versus 1.34 A). These differences remain within acceptable engineering margins for most applications. The substitute part features a defined operating temperature range (-25°C ~ 85°C), providing explicit thermal performance data absent from the original specification.

Physical dimensions show minor variation: the Abracon part is 0.008" larger in diameter and 0.060" taller. PCB layout and mechanical clearance verification is required prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the AIUR-06-331K replace the ELC-12D331E in all applications?

A: The AIUR-06-331K meets the core electrical requirements: 330 µH inductance, ±10% tolerance, 1.3 A current rating, and through-hole radial mounting. Verify that the slightly higher DC resistance (394mOhm max) and marginally lower current rating do not exceed circuit design margins. Confirm PCB layout accommodates the 0.008" larger diameter and 0.060" greater height.

Q: What is the difference between wirewound and drum core ferrite construction?

A: Both are wirewound inductor types. The ELC-12D331E uses standard wirewound construction; the AIUR-06-331K uses drum core ferrite construction. Both deliver equivalent inductance and tolerance performance within the specified parameters.

Q: Are there any compliance or regulatory differences?

A: Both components are ROHS3 compliant. The AIUR-06-331K includes REACH Unaffected status. No regulatory barriers exist for substitution.

Q: What is the impact of the higher DC resistance in the substitute part?

A: The AIUR-06-331K exhibits 394mOhm maximum DC resistance compared to 300mOhm in the original. This 94mOhm difference increases resistive losses by approximately 31%. Evaluate circuit power dissipation and thermal performance to confirm acceptability for your application.

Q: Is the AIUR-06-331K available in the same packaging format?

A: Yes. Both components use through-hole radial, vertical cylinder packages. Physical dimensions differ slightly: the Abracon part measures 0.500" diameter (versus 0.492") and 0.710" height (versus 0.650"). Verify PCB footprint compatibility before implementation.