T86E476M020EBAS Equivalent & Substitute Parts

Part Overview

The T86E476M020EBAS is a 47 µF molded tantalum capacitor rated at 20 V, manufactured by Vishay Sprague under the TANTAMOUNT™ T86 series. This component is designed for surface mount applications in the 2917 (7343 Metric) package format. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs requiring this capacitance and voltage rating.

Substiute Parts

T86E476M020EBAS

Vishay SpragueIn Stock: 802T86E476M020EBAS Datasheet

Current PartRFQ

T496X476M020AT

KEMETIn Stock: 720T496X476M020AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the T86E476M020EBAS is determined by strict equivalence across the following parameters:

• Capacitance value: 47 µF (exact match required)
• Voltage rating: 20 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Type: Molded Tantalum (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The identified substitute T496X476M020AT from KEMET meets all these core electrical and mechanical parameters. Variations in ESR, product status, and compliance certifications do not preclude substitution when the above parameters are satisfied.

Parameter Comparison

Engineering Selection Recommendations

The T496X476M020AT from KEMET is a direct functional equivalent to the obsolete T86E476M020EBAS. Both components share identical electrical specifications (47 µF, 20 V, ±20% tolerance) and mechanical compatibility (2917 package, identical dimensions and height).

The KEMET substitute offers two additional advantages: active product status ensures ongoing availability and supply chain continuity, and ROHS3 compliance satisfies modern environmental and regulatory requirements. The lower ESR value (300 mOhm versus 600 mOhm) in the KEMET part represents an improvement in performance characteristics without compromising compatibility.

Selection of the T496X476M020AT is appropriate for applications requiring the specified capacitance, voltage rating, and package format, with the added benefit of regulatory compliance and active manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the T496X476M020AT be used as a direct replacement for the T86E476M020EBAS?

A: Yes. Both components are 47 µF, 20 V molded tantalum capacitors in the 2917 (7343 Metric) package with identical physical dimensions and operating temperature ranges. Electrical specifications and mechanical compatibility are equivalent.

Q: What is the significance of the different ESR values?

A: The T496X476M020AT has a lower ESR (300 mOhm) compared to the original part (600 mOhm). Lower ESR generally results in reduced heat generation and improved high-frequency performance. This difference does not prevent substitution and may provide performance benefits in the target application.

Q: Does the RoHS compliance difference affect substitution?

A: The KEMET substitute is ROHS3 compliant while the original Vishay part is RoHS non-compliant. For new designs and applications subject to RoHS regulations, the KEMET part is the appropriate choice. For legacy system maintenance, compliance requirements depend on the specific application and regulatory environment.

Q: Are the physical dimensions identical?

A: Yes. Both components measure 0.287" L x 0.169" W (7.30mm x 4.30mm) with a maximum seated height of 0.169" (4.30mm). PCB layout and assembly compatibility are identical.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning the component can be stored indefinitely without special moisture control measures. Both the original and substitute parts carry this rating, ensuring equivalent handling and storage requirements.