ELC-16B332L Equivalent & Substitute Parts

Part Overview

The ELC-16B332L is a 3.3 mH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 470 mA with 2Ohm DC resistance. This component is designed for through-hole mounting in radial, vertical cylinder configuration. The part is currently obsolete, making equivalent substitutes necessary for ongoing production, maintenance, and repair applications where this inductance value and current rating are required.

Substiute Parts

ELC-16B332L

Panasonic Electronic ComponentsIn Stock: 1026ELC-16B332L Datasheet

Current PartRFQ

19R335C

Murata Power Solutions Inc.In Stock: 119119R335C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELC-16B332L is determined by the following critical parameters:

• Inductance Value: Must be 3.3 mH with ±10% tolerance to maintain circuit performance
• Current Rating: Substitute must support minimum 420 mA; the original part supports 470 mA
• DC Resistance: Substitute DCR must not exceed 2.5Ohm to limit power dissipation within acceptable limits
• Type & Shielding: Wirewound, unshielded construction required
• Mounting Configuration: Through-hole radial, vertical cylinder package mandatory for PCB compatibility
• Compliance: ROHS3 compliance required for regulatory alignment

The Murata Power Solutions Inc. part 19R335C meets these substitution criteria with equivalent inductance, compatible current rating, acceptable DCR variance, and matching mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

The 19R335C from Murata Power Solutions Inc. is the qualified substitute for the obsolete ELC-16B332L. Selection is based on the following factors:

• Inductance Match: Both parts provide 3.3 mH with ±10% tolerance, ensuring equivalent circuit behavior
• Current Rating Compatibility: The 19R335C is rated for 420 mA, which is within acceptable operating margin for applications originally designed for 470 mA, provided circuit current does not exceed 420 mA
• DC Resistance: The 19R335C DCR of 2.5Ohm Max is marginally higher than the original 2Ohm but remains within acceptable limits for most applications; thermal dissipation must be verified for high-current continuous operation
• Product Status: The 19R335C is active and in production, ensuring long-term availability and supply chain stability
• Regulatory Compliance: Both parts maintain ROHS3 compliance, meeting environmental and regulatory requirements
• Physical Compatibility: Smaller package dimensions (12.00mm vs 16.00mm diameter; 21.00mm vs 23.00mm height) require PCB layout verification to confirm mechanical fit within the original footprint

Frequently Asked Questions (FAQ)

Q: Can the 19R335C directly replace the ELC-16B332L without circuit modification?

A: The 19R335C is electrically compatible for inductance and current rating. However, the smaller package dimensions require verification that the component physically fits the original PCB footprint and mounting holes. No circuit modification is necessary if mechanical fit is confirmed.

Q: What is the impact of the 0.5Ohm increase in DC resistance (2Ohm to 2.5Ohm)?

A: The increased DCR results in higher power dissipation at rated current. At 420 mA, the 19R335C dissipates approximately 0.441W compared to 0.392W for the original part. Thermal performance must be evaluated for applications operating continuously at or near maximum current rating.

Q: Is the 19R335C suitable for applications requiring 470 mA continuous current?

A: No. The 19R335C is rated for 420 mA maximum. Applications requiring 470 mA must operate the substitute at reduced current or identify alternative parts with higher current ratings.

Q: Are there any compliance or certification differences between the two parts?

A: Both parts are ROHS3 compliant. The 19R335C includes REACH Unaffected status, providing additional regulatory documentation. Both carry EAR99 ECCN classification and identical HTSUS codes.

Q: What should be verified before implementing the 19R335C as a substitute?

A: Verify PCB footprint compatibility due to smaller package dimensions, confirm circuit current does not exceed 420 mA, and evaluate thermal performance accounting for the increased DCR. Electrical performance at the specified inductance frequency (1 kHz for 19R335C vs 10 kHz for ELC-16B332L) should be assessed for frequency-sensitive applications.