ELC-09D221F Equivalent & Substitute Parts

Part Overview

The ELC-09D221F is a 220 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 580 mA continuous current with 410mOhm DC resistance. This through-hole radial component operates at 10 kHz test frequency and is housed in a vertical cylinder package measuring 9.50mm diameter by 8.90mm height.

The ELC-09D221F is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring 220 µH inductance in through-hole configurations.

Substiute Parts

ELC-09D221F

Panasonic Electronic ComponentsIn Stock: 823ELC-09D221F Datasheet

Current PartRFQ

744772221

Würth ElektronikIn Stock: 1219744772221 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELC-09D221F is determined by the following critical parameters:

• Inductance Value: 220 µH (exact match required)
• Tolerance: ±10% (standard tolerance maintained)
• Mounting Type: Through Hole (mechanical compatibility)
• Package / Case: Radial, Vertical Cylinder (footprint compatibility)
• Current Rating: Minimum 580 mA (equal or higher acceptable)
• DC Resistance: Maximum 410mOhm (equal or lower acceptable)
• Shielding: Unshielded (electromagnetic environment compatibility)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

The Würth Elektronik 744772221 meets all substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744772221 is a direct functional substitute for the obsolete ELC-09D221F. Both components maintain identical inductance values, tolerance specifications, and shielding characteristics. The substitute part provides superior current handling capability (950 mA versus 580 mA) and maintains ROHS3 compliance with unlimited moisture sensitivity rating.

The 744772221 is currently in active production status with confirmed inventory availability, ensuring long-term supply chain stability. Physical dimensions differ slightly; the substitute features a smaller diameter (7.80mm versus 9.50mm) but greater height (10.00mm versus 8.90mm). PCB layout verification is required to confirm mechanical fit within the target application.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 744772221 replace the Panasonic ELC-09D221F in existing designs?

A: Yes. Both components share identical inductance (220 µH), tolerance (±10%), and mounting type (through-hole radial). The substitute meets or exceeds all electrical specifications. Physical dimensions must be verified for PCB layout compatibility.

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

A: The primary differences are current rating (950 mA versus 580 mA), DC resistance (450mOhm Max versus 410mOhm), and physical dimensions. The substitute provides higher current capacity and is actively manufactured.

Q: Are both parts RoHS compliant?

A: Yes. Both the ELC-09D221F and 744772221 are ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: Does the size difference affect substitution?

A: Physical dimensions differ: the substitute is smaller in diameter (7.80mm versus 9.50mm) but taller (10.00mm versus 8.90mm). PCB footprint and clearance requirements must be evaluated for your specific application.

Q: What is the inductance test frequency for each part?

A: The ELC-09D221F is tested at 10 kHz. The 744772221 is tested at 1 kHz. Both maintain the specified 220 µH inductance within ±10% tolerance at their respective test frequencies.