ELC-09D390F Equivalent & Substitute Parts

Part Overview

The ELC-09D390F is a 39 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 1.3 A with 87mOhm 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, voltage rating capability, and through-hole radial mounting configuration while meeting or exceeding the current handling requirements of the original specification.

Substiute Parts

ELC-09D390F

Panasonic Electronic ComponentsIn Stock: 1141ELC-09D390F Datasheet

Current PartRFQ

RL622-390K-RC

Bourns Inc.In Stock: 1844RL622-390K-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELC-09D390F are qualified based on the following electrical and mechanical criteria:

Electrical Compatibility:

• Inductance value: 39 µH (±10% tolerance maintained)
• Current rating: Equal to or greater than 1.3 A
• DC resistance: Within acceptable operating parameters for the application
• Shielding configuration: Unshielded

Mechanical Compatibility:

• Mounting type: Through hole
• Package configuration: Radial, vertical cylinder
• Form factor: Compatible with existing PCB layouts

Regulatory Compliance:

• RoHS3 compliance required
• ECCN classification: EAR99

The RL622-390K-RC from Bourns Inc. meets all substitution criteria with improved specifications in current rating (1.5 A) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The RL622-390K-RC qualifies as a direct substitute for the ELC-09D390F based on matched electrical specifications and mechanical form factor. The substitute part offers the following advantages:

• Active product status ensures long-term availability and supply chain continuity
• Current rating of 1.5 A exceeds the original 1.3 A requirement, providing operational margin
• ROHS3 compliance and REACH unaffected status maintain regulatory alignment
• Identical inductance and tolerance specifications preserve circuit performance

Selection of the RL622-390K-RC eliminates obsolescence risk while maintaining full functional compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can the RL622-390K-RC be used as a direct replacement for the ELC-09D390F?

A: Yes. Both components share identical inductance (39 µH), tolerance (±10%), shielding configuration (unshielded), and through-hole radial mounting. The substitute meets or exceeds all electrical requirements of the original part.

Q: What is the impact of the higher DC resistance in the RL622-390K-RC (100 mOhm vs. 87 mOhm)?

A: The 13 mOhm difference represents approximately 15% higher resistance. This increases power dissipation proportionally with current. For the rated 1.3 A operating point, this results in minimal additional heat generation and remains within acceptable design margins for most applications.

Q: Are there any physical dimension differences between these parts?

A: Yes. The RL622-390K-RC has a slightly larger diameter (0.335" vs. 0.374") and greater height (0.433" vs. 0.350"). Verify PCB layout clearances before substitution to ensure mechanical fit within the available space.

Q: Does the substitute part require any circuit modifications?

A: No circuit modifications are required. The matched inductance and tolerance values ensure equivalent electrical performance. Physical placement verification on the PCB is the only consideration.

Q: What is the advantage of selecting an active product over an obsolete part?

A: Active products ensure continuous manufacturing, stable pricing, and guaranteed long-term availability. Obsolete parts face supply discontinuation, price volatility, and potential quality degradation from remaining inventory.