ELC-11D102F Equivalent & Substitute Parts

Part Overview

The ELC-11D102F is a 1 mH unshielded through-hole inductor manufactured by Panasonic Electronic Components, rated for 570 mA with 1.1Ohm DC resistance. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part is housed in a radial, vertical cylinder package with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substiute Parts

ELC-11D102F

Panasonic Electronic ComponentsIn Stock: 1101ELC-11D102F Datasheet

Current PartRFQ

7447471102

Würth ElektronikIn Stock: 29157447471102 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELC-11D102F is determined by the following critical parameters:

• Inductance Value: 1 mH (primary electrical requirement)
• Current Rating: Minimum 570 mA (functional requirement)
• DC Resistance: Maximum 1.1Ohm (performance requirement)
• Mounting Type: Through Hole (mechanical requirement)
• Package / Case: Radial, Vertical Cylinder (form factor requirement)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

The Würth Elektronik 7447471102 meets the core electrical and mechanical requirements with compatible inductance, current rating, mounting type, and package configuration. Variations in shielding type, core material, and tolerance are acceptable within the substitution scope, provided the primary electrical parameters remain within functional limits.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7447471102 is a direct functional substitute for the obsolete ELC-11D102F. Both components are ROHS3 compliant and rated for through-hole mounting in radial, vertical cylinder configurations. The substitute part offers superior current rating (600 mA vs. 570 mA) and active product status, ensuring long-term availability and supply chain continuity. The increased DC resistance (1.5Ohm Max vs. 1.1Ohm) and wider tolerance (±20% vs. ±10%) must be evaluated against circuit design margins. The shielded construction of the substitute provides additional electromagnetic interference mitigation compared to the unshielded original.

Frequently Asked Questions (FAQ)

Q: Can the 7447471102 be used as a direct replacement for the ELC-11D102F?

A: Yes. Both components share identical inductance values (1 mH), compatible current ratings (600 mA vs. 570 mA), through-hole mounting, and radial vertical cylinder package geometry. ROHS3 compliance is maintained across both parts.

Q: What are the key differences between these two inductors?

A: The primary differences are DC resistance (1.5Ohm Max vs. 1.1Ohm), inductance tolerance (±20% vs. ±10%), shielding type (shielded vs. unshielded), and physical dimensions. The substitute is slightly smaller in diameter and height.

Q: Does the shielded design of the 7447471102 affect circuit compatibility?

A: Shielding reduces electromagnetic radiation and susceptibility to external interference. This is generally beneficial in most applications. Circuit-specific electromagnetic compatibility requirements should be evaluated during design validation.

Q: Are there any PCB layout considerations when switching from ELC-11D102F to 7447471102?

A: The substitute part has slightly smaller dimensions (0.433" Dia vs. 0.453" Dia and 0.453" height vs. 0.547" height). Verify that the smaller footprint is compatible with existing PCB layouts and component spacing requirements.

Q: What is the impact of the increased DC resistance on circuit performance?

A: The 7447471102 has 0.4Ohm higher maximum DC resistance. This increases power dissipation and voltage drop under load. Evaluate circuit current levels and thermal management to confirm acceptable performance margins.