T86D476M010EBAS Equivalent & Substitute Parts

Part Overview

The T86D476M010EBAS is a 47 µF molded tantalum capacitor manufactured by Vishay Sprague, rated for 10 V operation in a 2917 (7343 Metric) surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. The part features a fail-safe design with built-in fuse and high reliability ratings suitable for COTS applications.

Substiute Parts

T86D476M010EBAS

Vishay SpragueIn Stock: 1095T86D476M010EBAS Datasheet

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T83D476K020EZZS

Vishay SpragueIn Stock: 790T83D476K020EZZS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the T86D476M010EBAS is determined by the following critical parameters:

• Capacitance Value: Must remain 47 µF (no tolerance for deviation)
• Package / Case: Must be 2917 (7343 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• ESR: Must be 700 mOhm or lower to maintain circuit performance
• Type: Must be Molded Tantalum

The substitute part T83D476K020EZZS meets all these criteria. While the voltage rating increases from 10 V to 20 V and tolerance improves from ±20% to ±10%, these represent enhancements that do not compromise compatibility. The higher voltage rating provides additional design margin, and the tighter tolerance improves circuit predictability.

Parameter Comparison

Engineering Selection Recommendations

The T83D476K020EZZS is the direct substitute for the obsolete T86D476M010EBAS. Selection of the substitute part is based on the following factors:

• Product Status: The main part is obsolete, making the active T83D476K020EZZS the appropriate choice for continued supply and new designs.
• Electrical Compatibility: Identical capacitance, ESR, and operating temperature range ensure functional equivalence. The increased voltage rating (20 V vs. 10 V) and improved tolerance (±10% vs. ±20%) provide enhanced performance margins without circuit modification.
• Mechanical Compatibility: Identical package dimensions and surface mount configuration enable direct PCB layout compatibility.
• Compliance: Both parts share identical RoHS and REACH status, with MSL rating of 1 (Unlimited) for storage and handling.

Frequently Asked Questions (FAQ)

Q: Can T83D476K020EZZS be used as a direct replacement for T86D476M010EBAS?

A: Yes. Both parts share identical capacitance (47 µF), package (2917), ESR (700 mOhm), and operating temperature range (-55°C ~ 125°C). The substitute features a higher voltage rating (20 V vs. 10 V) and tighter tolerance (±10% vs. ±20%), which are compatible enhancements. No circuit modifications are required.

Q: What is the significance of the voltage rating increase from 10 V to 20 V?

A: The higher voltage rating provides additional design margin and reliability. A 20 V rated capacitor can safely operate at 10 V with reduced stress on the dielectric material, extending component lifetime and reducing failure risk.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both parts use the 2917 (7343 Metric) package with dimensions of 0.287" L x 0.169" W (7.30mm x 4.30mm) and maximum seated height of 0.122" (3.10mm). PCB footprints are identical.

Q: Does the tolerance improvement from ±20% to ±10% affect circuit design?

A: The tighter tolerance of the substitute part improves circuit predictability and reduces capacitance variation across production batches. This is a beneficial change that does not require design modifications.

Q: Are there any compliance or certification differences?

A: Both parts are RoHS non-compliant and REACH Unaffected with MSL rating of 1 (Unlimited). Compliance status is identical.

Q: Why is the main part marked as obsolete?

A: Obsolescence indicates that the manufacturer has discontinued production. The T83D476K020EZZS, as an active product from the same manufacturer, is the designated replacement for ongoing supply and new designs.