ELC-12E220L Equivalent & Substitute Parts

Part Overview

The ELC-12E220L is a 22 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 2.8 A with a DC resistance of 33mOhm. This through-hole radial component operates at a test frequency of 10 kHz and is housed in a vertical cylinder package measuring 0.531" diameter by 0.768" height.

The ELC-12E220L has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this inductor.

Substiute Parts

ELC-12E220L

Panasonic Electronic ComponentsIn Stock: 984ELC-12E220L Datasheet

Current PartRFQ

7447471220

Würth ElektronikIn Stock: 24617447471220 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELC-12E220L must satisfy the following core electrical and mechanical criteria:

Electrical Requirements:

• Inductance value of 22 µH (tolerance range acceptable per design margin)
• Current rating equal to or greater than 2.8 A
• Shielded construction to maintain electromagnetic isolation
• Through-hole mounting configuration

Mechanical Requirements:

• Radial, vertical cylinder package orientation
• Physical dimensions compatible with PCB footprint spacing
• RoHS3 compliance for regulatory alignment

The Würth Elektronik 7447471220 meets these substitution criteria with matching inductance, higher current rating (3.7 A), shielded drum core construction, and identical mounting type and package orientation.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7447471220 is a qualified substitute for the obsolete ELC-12E220L based on the following factors:

Electrical Compatibility: Both components provide 22 µH inductance with shielded construction. The substitute offers higher current rating (3.7 A versus 2.8 A), providing design margin for thermal and electrical stress. The increased DC resistance (48mOhm max versus 33mOhm) must be evaluated against circuit power dissipation requirements.

Mechanical Compatibility: Both parts feature through-hole radial, vertical cylinder packaging. The substitute is physically smaller (0.433" diameter, 0.453" height versus 0.531" diameter, 0.768" height), which may require PCB layout verification to confirm footprint compatibility.

Regulatory Compliance: Both components are ROHS3 compliant and carry EAR99 ECCN classification, maintaining regulatory alignment with the original design.

Supply Status: The substitute is active product status with confirmed inventory availability (2372 pcs), ensuring long-term supply chain viability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7447471220 be used as a direct replacement for the ELC-12E220L?

A: Yes, provided PCB footprint dimensions accommodate the smaller package size (0.433" diameter versus 0.531" diameter). Electrical parameters are compatible within design margins. Verify DC resistance impact on circuit power dissipation, as the substitute has 48mOhm max versus 33mOhm.

Q: What is the impact of the higher inductance tolerance (±20% versus ±10%) on circuit performance?

A: The substitute's ±20% tolerance is wider than the original ±10%. Circuit designs dependent on tight inductance tolerance must evaluate whether this variance affects frequency response, filtering characteristics, or impedance matching requirements.

Q: Are there physical space constraints with the smaller substitute package?

A: The Würth Elektronik part is smaller in both diameter and height. Verify that the reduced footprint does not create spacing conflicts with adjacent components or create thermal management issues in high-current applications.

Q: Does the substitute support the same operating temperature range?

A: The substitute specifies -40°C ~ 125°C operating temperature. The original part does not specify an operating temperature range. Confirm that the substitute's temperature range meets application requirements.

Q: What is the significance of different inductance test frequencies (10 kHz versus 1 kHz)?

A: Inductance values are frequency-dependent. The original part is tested at 10 kHz while the substitute is tested at 1 kHz. For applications operating near these frequencies, measure actual inductance performance at the circuit's operating frequency to confirm compatibility.