ELC-3FN1R0N Equivalent & Substitute Parts

Part Overview

The ELC-3FN1R0N is a 1 µH unshielded surface mount inductor manufactured by Panasonic Electronic Components, rated for 1.4 A with 80mOhm DC resistance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is RoHS compliant and carries MSL Level 1 rating, indicating unlimited moisture sensitivity protection.

Substiute Parts

ELC-3FN1R0N

Panasonic Electronic ComponentsIn Stock: 1168ELC-3FN1R0N Datasheet

Current PartRFQ

SDR0302-1R0ML

Bourns Inc.In Stock: 6232SDR0302-1R0ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELC-3FN1R0N is determined by the following critical parameters:

• Inductance Value: Must be 1 µH (core functional requirement)
• Current Rating: Substitute must meet or exceed 1.4 A minimum
• DC Resistance: Lower DCR values are acceptable; higher values require circuit validation
• Shielding Configuration: Unshielded topology must be maintained
• Mounting Type: Surface mount configuration required
• Physical Footprint: Nonstandard package compatibility with PCB layout constraints
• Compliance: RoHS and MSL ratings must be equivalent or superior

The SDR0302-1R0ML from Bourns Inc. meets these substitution criteria with improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SDR0302-1R0ML is a direct functional substitute for the obsolete ELC-3FN1R0N based on the following factors:

• Inductance Match: Both components provide 1 µH inductance value
• Current Capacity: The Bourns part provides 2.1 A rating, exceeding the 1.4 A requirement with 50% margin
• Resistance Improvement: Lower DCR (60mOhm max vs. 80mOhm) reduces power dissipation and heat generation
• Compliance Status: SDR0302-1R0ML is active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment
• Packaging: Both components use nonstandard surface mount packages; physical dimensions differ slightly and require PCB layout verification

The substitute part provides superior electrical performance with equivalent compliance ratings and active manufacturing status.

Frequently Asked Questions (FAQ)

Q: Can the SDR0302-1R0ML directly replace the ELC-3FN1R0N without circuit modification?

A: The SDR0302-1R0ML meets all critical electrical parameters (inductance, current rating, DCR, shielding). However, physical dimensions differ (3.00mm x 2.80mm x 2.80mm vs. 3.20mm x 3.20mm x 1.20mm), requiring PCB footprint verification before implementation.

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

A: Lower DCR (60mOhm max vs. 80mOhm) reduces resistive losses and heat dissipation. This is a performance improvement with no negative circuit impact.

Q: Are both parts RoHS compliant?

A: Yes. The ELC-3FN1R0N is RoHS Compliant; the SDR0302-1R0ML is ROHS3 Compliant, meeting current regulatory standards.

Q: What is the significance of the inductance tolerance difference?

A: The substitute part has ±20% tolerance versus ±30% for the original. Tighter tolerance provides better consistency across production batches and may improve circuit performance in applications sensitive to inductance variation.

Q: Is the substitute part actively manufactured?

A: Yes. The SDR0302-1R0ML is classified as Active product status with 6129 units in stock, ensuring procurement availability and long-term supply continuity.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both components carry MSL Level 1 (Unlimited) rating, indicating equivalent moisture protection and handling requirements.