T494D335M050AT Equivalent & Substitute Parts

Part Overview

The T494D335M050AT is a 3.3 µF molded tantalum capacitor manufactured by KEMET, rated for 50 V operation in a 2917 (7343 Metric) surface mount package. This component is classified as Active product status and is designed for general-purpose applications requiring stable capacitance and low equivalent series resistance in compact form factors. Substitute parts are identified when equivalent electrical characteristics, mechanical dimensions, and compliance certifications align with the original specification, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

T494D335M050AT

KEMETIn Stock: 832T494D335M050AT Datasheet

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T491D335M050AT

KEMETIn Stock: 3634T491D335M050AT Datasheet

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TPSD335K050R0800

KYOCERA AVXIn Stock: 2406TPSD335K050R0800 Datasheet

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TAJD335M050RNJ

KYOCERA AVXIn Stock: 1604TAJD335M050RNJ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T494D335M050AT is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Capacitance value: 3.3 µF (exact match required)
• Voltage rating: 50 V (minimum, equal or higher acceptable)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C to 125°C (minimum coverage required)
• RoHS3 Compliance: Required
• MSL Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• ESR (Equivalent Series Resistance): Variation permitted within functional limits
• Tolerance: ±20% or tighter tolerance acceptable
• Packaging format: Tape & Reel (TR), Cut Tape (CT), or Digi-Reel® formats interchangeable for component selection
• Manufacturer: KEMET, KYOCERA AVX, or equivalent qualified suppliers

Identified substitute parts meet all critical matching parameters while demonstrating equivalent or superior electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and full compliance with ROHS3 and REACH regulatory requirements. Selection between the T494D335M050AT and substitute options is determined by specific application requirements and ESR characteristics:

T494D335M050AT and TPSD335K050R0800 are suitable for applications requiring lower ESR (800 mOhm), providing superior high-frequency performance and reduced thermal dissipation. The TPSD335K050R0800 offers the additional benefit of ±10% tolerance, delivering tighter capacitance control compared to the ±20% specification of the main part.

T491D335M050AT and TAJD335M050RNJ feature higher ESR (2 Ohm) and are appropriate for general-purpose applications where ESR is not a critical performance parameter. These options provide equivalent electrical functionality within the specified operating temperature range.

All substitute parts are packaged in the identical 2917 (7343 Metric) form factor with matching physical dimensions and height specifications, ensuring direct mechanical compatibility in surface mount circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can T491D335M050AT replace T494D335M050AT in any application?

A: T491D335M050AT is electrically equivalent in capacitance, voltage rating, and operating temperature range. The primary difference is ESR: T491D335M050AT has 2 Ohm ESR compared to 800 mOhm in the T494D335M050AT. Applications sensitive to ESR performance or high-frequency ripple current handling require the lower ESR variant. Both parts share identical package dimensions and mounting characteristics.

Q: What is the advantage of TPSD335K050R0800 over the main part?

A: TPSD335K050R0800 provides ±10% capacitance tolerance versus ±20% in T494D335M050AT, delivering tighter capacitance control. ESR specification is identical at 800 mOhm. This upgrade is beneficial for applications requiring precise capacitance values. All other electrical and mechanical parameters remain equivalent.

Q: Are packaging format differences (Tape & Reel vs. Cut Tape) significant for substitution?

A: Packaging format differences (Tape & Reel, Cut Tape, or Digi-Reel®) affect only procurement and handling logistics, not component electrical or mechanical performance. The actual component specifications and physical dimensions remain identical across packaging formats. Selection is based on manufacturing assembly requirements and inventory management practices.

Q: Do all substitute parts meet the same compliance standards?

A: All identified substitute parts are ROHS3 Compliant, REACH Unaffected, and classified as MSL Level 1 (Unlimited moisture sensitivity). Compliance certifications are equivalent across all options, ensuring regulatory acceptance in equivalent applications.

Q: Can substitute parts be mixed in the same circuit board design?

A: Yes. All substitute parts meet identical electrical specifications for capacitance, voltage rating, and operating temperature range. Physical dimensions and mounting characteristics are identical, permitting interchangeable placement in circuit board layouts. ESR differences between variants do not prevent co-location in the same design when application requirements are satisfied by the selected ESR specification.