T86E337K004ESAL Equivalent & Substitute Parts

Part Overview

The T86E337K004ESAL is a 330 µF molded tantalum capacitor rated at 4 V, manufactured by Vishay Sprague under the TANTAMOUNT™ T86 series. This component features a 2917 (7343 Metric) package with 300mOhm ESR and integrated fail-safe fuse protection. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

T86E337K004ESAL

Vishay SpragueIn Stock: 734T86E337K004ESAL Datasheet

Current PartRFQ

T496X337K004ATE700

KEMETIn Stock: 854T496X337K004ATE700 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T86E337K004ESAL is determined by strict equivalence across the following parameters:

• Capacitance value: 330 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating: 4 V (exact match required)
• Package: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• Type: Molded tantalum (exact match required)

The T496X337K004ATE700 manufactured by KEMET meets all these criteria. While ESR differs (700mOhm vs. 300mOhm), this parameter does not disqualify substitution when the substitute remains within acceptable circuit performance limits for the application.

Parameter Comparison

Engineering Selection Recommendations

The T496X337K004ATE700 is the direct functional equivalent for the obsolete T86E337K004ESAL. Selection of this substitute is supported by:

• Active product status ensuring long-term availability and supply chain stability
• ROHS3 compliance, providing regulatory advantage over the non-compliant original part
• Identical electrical ratings (capacitance, voltage, tolerance, temperature range)
• Identical mechanical fit (package, dimensions, height)
• Equivalent fail-safe fuse protection feature
• Unlimited moisture sensitivity rating matching the original

The higher ESR value (700mOhm vs. 300mOhm) must be evaluated within the specific circuit application to confirm acceptable performance. Applications with stringent ripple current or transient response requirements should conduct circuit simulation or testing to validate the substitute.

Frequently Asked Questions (FAQ)

Q: Can the T496X337K004ATE700 be used as a direct replacement for the T86E337K004ESAL?

A: Yes, the T496X337K004ATE700 meets all core electrical and mechanical specifications. The substitute shares identical capacitance (330 µF), voltage rating (4 V), tolerance (±10%), package (2917), and operating temperature range (-55°C ~ 125°C). Physical dimensions and mounting type are identical, enabling direct PCB substitution.

Q: What is the significance of the ESR difference between these parts?

A: The T496X337K004ATE700 has 700mOhm ESR compared to 300mOhm for the original part. ESR affects ripple current handling, transient response, and heat dissipation. Applications sensitive to these parameters should verify the substitute's performance through circuit analysis or testing.

Q: Is the T496X337K004ATE700 available in the same packaging format?

A: The substitute is supplied in Tape & Reel (TR) format, whereas the original part information does not specify packaging format. Both parts use the 2917 (7343 Metric) package case. Verify tape and reel specifications match your assembly equipment requirements.

Q: Does the RoHS compliance difference affect substitution?

A: The T496X337K004ATE700 is ROHS3 compliant, while the original T86E337K004ESAL is RoHS non-compliant. For applications subject to RoHS regulations, the substitute provides regulatory compliance. For legacy systems without RoHS requirements, this difference does not affect functional compatibility.

Q: Are there any other substitutes available for this part?

A: The provided data identifies T496X337K004ATE700 as the primary substitute. The KEMET T496 series part may have secondary alternatives within its own product line (T495D337K004ATE030, T495D337K004ATE045, T496X337M004AT), but these require separate evaluation against the original specifications.