Equivalent & Substitute Parts for T86E337K004ESAS

Part Overview

The T86E337K004ESAS is a 330 µF molded tantalum capacitor rated at 4 V, manufactured by Vishay Sprague in the TANTAMOUNT™ T86 series. This component is packaged in a 2917 (7343 Metric) surface mount case with 500mOhm equivalent series resistance and fail-safe built-in fuse protection. The part is currently obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

Substiute Parts

T86E337K004ESAS

Vishay SpragueIn Stock: 1035T86E337K004ESAS Datasheet

Current PartRFQ

T83E337K010EZZS

Vishay SpragueIn Stock: 1108T83E337K010EZZS Datasheet

UpgradeRFQ

T496X337K004ATE700

KEMETIn Stock: 854T496X337K004ATE700 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the T86E337K004ESAS is determined by the following critical parameters:

Primary Matching Criteria:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

Secondary Compatibility Parameters:

• Voltage Rating: 4 V minimum (equal or higher voltage rating is acceptable)
• ESR: 500mOhm reference (variations within 200mOhm acceptable based on application requirements)
• Type: Molded Tantalum (exact match required)

Two substitute parts meet these criteria with the following distinctions:

1. T83E337K010EZZS (Vishay Sprague) — Upgrade substitute with higher voltage rating (10 V vs. 4 V), same ESR, active product status
2. T496X337K004ATE700 (KEMET) — Direct equivalent with identical voltage rating (4 V), higher ESR (700mOhm vs. 500mOhm), active product status

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications): Select T496X337K004ATE700 (KEMET) when the original 4 V rating and 500mOhm ESR specification must be maintained. This part provides identical voltage and capacitance ratings with marginally higher ESR (700mOhm). KEMET T496X series is active and ROHS3 compliant, supporting long-term procurement availability.

For Upgraded Performance: Select T83E337K010EZZS (Vishay Sprague) when circuit design permits higher voltage rating. The 10 V rating provides additional safety margin and voltage headroom. This part maintains identical ESR (500mOhm) and capacitance. Vishay Sprague T83 series is active and supports continued availability, though RoHS non-compliance status matches the original part.

Compliance Considerations: If RoHS3 compliance is a design requirement, T496X337K004ATE700 is the only substitute meeting this criterion. Both Vishay Sprague alternatives (original and T83E337K010EZZS) are RoHS non-compliant.

Frequently Asked Questions (FAQ)

Q: Can T83E337K010EZZS replace T86E337K004ESAS in any circuit? A: T83E337K010EZZS is electrically compatible as a substitute. The 10 V rating is higher than the original 4 V specification, which is acceptable in circuits designed for 4 V operation. Physical dimensions are nearly identical (height difference of 0.02mm is negligible). Verify circuit design does not depend on the specific 4 V rating before substitution.

Q: What is the impact of ESR difference between T496X337K004ATE700 (700mOhm) and the original (500mOhm)? A: The 200mOhm ESR increase affects ripple current handling and thermal performance. In low-frequency or low-ripple-current applications, this difference is typically negligible. High-frequency switching circuits or applications with sustained ripple current should be evaluated for thermal impact. Consult application-specific datasheets for ripple current ratings.

Q: Are all three parts pin-compatible? A: Yes. All three parts use identical 2917 (7343 Metric) surface mount packaging with the same footprint and lead configuration. PCB layout modifications are not required for substitution.

Q: Which substitute offers the best long-term availability? A: Both T83E337K010EZZS and T496X337K004ATE700 are active products with established manufacturing status. T496X337K004ATE700 offers additional advantage of ROHS3 compliance, supporting regulatory requirements in new designs.

Q: Can the original T86E337K004ESAS be procured as new stock? A: The T86E337K004ESAS is obsolete. Procurement should transition to active alternatives: T83E337K010EZZS or T496X337K004ATE700.