T86E337K004EBAS Equivalent & Substitute Parts

Part Overview

The T86E337K004EBAS is a 330 µF molded tantalum capacitor rated at 4 V, manufactured by Vishay Sprague in the TANTAMOUNT™ T86 series. This component is housed in a 2917 (7343 Metric) surface mount package with 500 mOhm equivalent series resistance and operates across -55°C to 125°C. The part is currently obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement.

Substiute Parts

T86E337K004EBAS

Vishay SpragueIn Stock: 878T86E337K004EBAS Datasheet

Current PartRFQ

T83E337K010EZZS

Vishay SpragueIn Stock: 1108T83E337K010EZZS Datasheet

UpgradeRFQ

T496X337K004ATE700

KEMETIn Stock: 854T496X337K004ATE700 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T86E337K004EBAS are classified based on the following criteria:

Upgrade Substitute: Parts with identical capacitance (330 µF), tolerance (±10%), package (2917), and mounting type, but with higher voltage ratings or active product status. These provide direct functional replacement with enhanced specifications.

Direct Equivalent: Parts with matching capacitance (330 µF), voltage rating (4 V), tolerance (±10%), package (2917), and mounting type from alternative manufacturers. These maintain electrical and mechanical compatibility while offering procurement alternatives.

The critical parameters determining substitutability are: capacitance value, voltage rating, tolerance, package type, and physical dimensions. Variations in ESR are acceptable within the same package class provided the application does not impose strict impedance constraints.

Parameter Comparison

Engineering Selection Recommendations

T83E337K010EZZS (Upgrade Substitute): This part is recommended for new designs or where voltage margin is required. It maintains identical capacitance, tolerance, package, and ESR specifications while providing a 10 V rating versus the original 4 V. The part is in active production status, ensuring long-term availability. Both parts are RoHS non-compliant and share equivalent reliability features.

T496X337K004ATE700 (Direct Equivalent): This KEMET alternative provides exact voltage and capacitance matching with identical package dimensions. The 700 mOhm ESR is 40% higher than the original specification; this difference is acceptable for general-purpose applications but should be evaluated for circuits with strict impedance requirements. This part is ROHS3 compliant and in active production, offering improved environmental compliance compared to the obsolete original.

Selection between these substitutes depends on design constraints: choose the upgrade for enhanced voltage margin and continued Vishay supply chain access, or select the KEMET direct equivalent for RoHS3 compliance and alternative sourcing.

Frequently Asked Questions (FAQ)

Q: Can T83E337K010EZZS replace T86E337K004EBAS in all applications?

A: Yes, for applications operating at or below 4 V. The 10 V rating provides additional safety margin. Both parts share identical capacitance (330 µF), tolerance (±10%), package (2917), ESR (500 mOhm), and operating temperature range. Physical dimensions are equivalent, ensuring PCB compatibility.

Q: What is the impact of the 700 mOhm ESR in the KEMET T496X337K004ATE700?

A: The KEMET part has 40% higher ESR (700 mOhm vs. 500 mOhm). This affects impedance characteristics and ripple current handling. For applications with strict ESR requirements or high-frequency ripple current demands, verify that 700 mOhm remains within acceptable limits. For general-purpose filtering and energy storage applications, this difference is typically acceptable.

Q: Are there package or footprint differences between these parts?

A: No. All three parts use the 2917 (7343 Metric) package with identical physical dimensions of 7.30mm x 4.30mm. PCB footprints are interchangeable.

Q: Why is RoHS compliance different between substitutes?

A: The original T86E337K004EBAS and T83E337K010EZZS are RoHS non-compliant. The KEMET T496X337K004ATE700 is ROHS3 compliant. For applications requiring RoHS compliance, the KEMET part is the appropriate selection.

Q: What is the availability status of these substitutes?

A: T83E337K010EZZS and T496X337K004ATE700 are both in active production. The original T86E337K004EBAS is obsolete. For new procurement, either active substitute is suitable; selection depends on voltage margin requirements and RoHS compliance needs.