ELL-8TP820MB Equivalent & Substitute Parts

Part Overview

The ELL-8TP820MB is a 82 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 1.15 A with a DC resistance of 170mOhm. This component features nonstandard corner terminals and surface mount packaging in an 8.00mm x 8.00mm footprint. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

ELL-8TP820MB

Panasonic Electronic ComponentsIn Stock: 1098ELL-8TP820MB Datasheet

Current PartRFQ

7447714820

Würth ElektronikIn Stock: 23377447714820 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELL-8TP820MB is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 82 µH at 100 kHz test frequency
• Inductance tolerance: ±20%
• Shielding requirement: Shielded construction
• Mounting type: Surface mount
• Current rating: Must meet or exceed 1.15 A
• DC resistance: Must not significantly exceed 170mOhm to maintain circuit performance
• Operating temperature range: Must support -40°C minimum and 105°C maximum
• RoHS3 compliance: Required for regulatory alignment

The Würth Elektronik part 7447714820 qualifies as a substitute based on matching inductance, tolerance, shielding, mounting type, and regulatory compliance. The substitute provides enhanced current rating (1.6 A vs. 1.15 A) and saturation current (1.9A vs. 950mA), supporting broader application flexibility.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7447714820 is an active production substitute for the obsolete Panasonic ELL-8TP820MB. Both components meet ROHS3 compliance and share identical inductance specifications, tolerance, and test frequency. The substitute provides superior current handling (1.6 A vs. 1.15 A) and extended operating temperature range (-40°C to 125°C vs. -40°C to 105°C), supporting broader thermal operating conditions.

The substitute carries AEC-Q200 automotive qualification, providing additional reliability assurance for demanding applications. DC resistance remains within acceptable tolerance (176mOhm Max vs. 170mOhm), with negligible impact on circuit performance.

Physical footprint differs: the substitute measures 10.00mm x 10.00mm versus the original 8.00mm x 8.00mm. PCB layout verification is required to confirm space availability. Both components maintain identical 5.00mm seated height.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7447714820 directly replace the Panasonic ELL-8TP820MB?

A: Electrical substitution is valid based on matching inductance (82 µH), tolerance (±20%), shielding, and test frequency (100 kHz). Physical footprint differs (10.00mm x 10.00mm vs. 8.00mm x 8.00mm), requiring PCB layout verification before implementation.

Q: What are the key differences between these inductors?

A: The substitute provides higher current rating (1.6 A vs. 1.15 A), higher saturation current (1.9A vs. 950mA), extended temperature range (-40°C to 125°C vs. -40°C to 105°C), and active product status. DC resistance is comparable (176mOhm Max vs. 170mOhm). Core construction differs: drum core wirewound versus standard wirewound.

Q: Is the DC resistance difference significant?

A: The 6mOhm difference (176mOhm vs. 170mOhm) represents approximately 4.6% variance and is within acceptable engineering tolerance for most applications. Circuit thermal and performance impact is negligible.

Q: Does the substitute meet the same compliance standards?

A: Both components are ROHS3 compliant with MSL 1 (Unlimited). The substitute additionally carries AEC-Q200 automotive qualification, providing enhanced reliability documentation.

Q: What is the impact of the larger footprint?

A: The substitute requires 10.00mm x 10.00mm PCB space versus 8.00mm x 8.00mm for the original. Seated height remains identical at 5.00mm maximum. PCB layout must accommodate the increased footprint dimensions.