Equivalent & Substitute Parts for T491C336K016AS

Part Overview

The T491C336K016AS is a 33 µF molded tantalum capacitor manufactured by KEMET, rated for 16 V operation in a 2312 (6032 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement. The part operates across a temperature range of -55°C to 125°C with a moisture sensitivity level of 1 (unlimited). Substitute parts must maintain electrical and mechanical compatibility while meeting current availability and compliance requirements.

Substiute Parts

T491C336K016AS

KEMETIn Stock: 720T491C336K016AS Datasheet

Current PartRFQ

T491C336K016AH

KEMETIn Stock: 859T491C336K016AH Datasheet

DirectRFQ

T491C336K016AT

KEMETIn Stock: 1179T491C336K016AT Datasheet

DirectRFQ

293D336X9016C2TE3

Vishay SpragueIn Stock: 60230293D336X9016C2TE3 Datasheet

SimilarRFQ

TAJC336K016H

KYOCERA AVXIn Stock: 1158TAJC336K016H Datasheet

SimilarRFQ

TPSC336K016H0300

KYOCERA AVXIn Stock: 1017TPSC336K016H0300 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Capacitance: 33 µF
• Tolerance: ±10%
• Voltage - Rated: 16 V
• Type: Molded tantalum
• Package / Case: 2312 (6032 Metric)
• Size / Dimension: 0.236" L x 0.126" W (6.00mm x 3.20mm)
• Height - Seated (Max): 0.110" (2.80mm)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 125°C
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowed Variation):

• ESR (Equivalent Series Resistance): 0.3Ohm to 1.5Ohm
• Packaging format: Bulk, Cut Tape (CT), Tape & Reel (TR)
• Product Status: Active or Obsolete
• RoHS Compliance: Compliant or Non-compliant
• Manufacturer: KEMET, Vishay Sprague, KYOCERA AVX

All identified substitute parts meet the critical parameter requirements and are therefore electrically and mechanically compatible with the T491C336K016AS.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: T491C336K016AT

The T491C336K016AT is the preferred substitute for the obsolete T491C336K016AS. Both parts are manufactured by KEMET within the T491 series and maintain identical electrical specifications (33 µF, 16 V, 1.2Ohm ESR). The T491C336K016AT holds active product status and achieves ROHS3 compliance, addressing regulatory requirements for new designs. Inventory availability is substantial at 1160 pieces. The Cut Tape (CT) & Digi-Reel® packaging format accommodates both manual and automated assembly processes.

Secondary Recommendation: T491C336K016AH

The T491C336K016AH provides an alternative within the KEMET T491 series with identical electrical performance. This part maintains active status with 809 pieces in stock. Tape & Reel (TR) packaging is optimized for high-volume automated assembly. RoHS non-compliance status should be evaluated against design requirements.

Alternative Recommendation: 293D336X9016C2TE3

The Vishay Sprague 293D336X9016C2TE3 (TANTAMOUNT™ series) offers cross-manufacturer compatibility with marginally lower ESR (1.1Ohm versus 1.2Ohm). This part achieves ROHS3 compliance and maintains active product status. Exceptional inventory availability (60200 pieces) supports high-volume procurement. ESR variation remains within acceptable operational parameters for general-purpose applications.

Tertiary Alternatives: TAJC336K016H and TPSC336K016H0300

KYOCERA AVX parts provide additional sourcing options. The TAJC336K016H maintains standard ESR (1.5Ohm) with active status. The TPSC336K016H0300 offers superior low-ESR performance (0.3Ohm) suitable for applications requiring minimal impedance. Both parts are available in active status with adequate inventory levels.

Frequently Asked Questions (FAQ)

Q: Can T491C336K016AT directly replace T491C336K016AS in existing designs?

A: Yes. Both parts share identical electrical specifications (33 µF, ±10%, 16 V, 1.2Ohm ESR) and mechanical dimensions (2312 package, 6.00mm x 3.20mm x 2.80mm). The primary difference is product status (active versus obsolete) and packaging format (Cut Tape & Digi-Reel® versus bulk). No circuit modifications are required.

Q: What is the significance of ESR variation among substitute parts?

A: ESR (Equivalent Series Resistance) ranges from 0.3Ohm to 1.5Ohm across available substitutes. All values remain within acceptable parameters for general-purpose tantalum capacitor applications. Lower ESR (0.3Ohm in TPSC336K016H0300) reduces impedance and heat generation in high-frequency circuits. Higher ESR (1.5Ohm in TAJC336K016H) is acceptable for standard filtering and decoupling applications. Selection depends on specific circuit requirements.

Q: Does RoHS compliance affect functional compatibility?

A: No. RoHS compliance status reflects manufacturing process and material composition but does not alter electrical or mechanical performance. T491C336K016AT (ROHS3 compliant) and T491C336K016AH (non-compliant) are functionally identical. Compliance selection is driven by regulatory and procurement requirements, not technical compatibility.

Q: Are cross-manufacturer substitutes (Vishay Sprague, KYOCERA AVX) electrically equivalent?

A: Yes. The 293D336X9016C2TE3 (Vishay Sprague), TAJC336K016H, and TPSC336K016H0300 (KYOCERA AVX) all meet the critical electrical parameters: 33 µF capacitance, ±10% tolerance, 16 V rating, and identical package dimensions. ESR variations are within acceptable operational ranges. Cross-manufacturer substitution is supported by matching electrical and mechanical specifications.

Q: What packaging format should be selected for automated assembly?

A: Cut Tape (CT) & Digi-Reel® (T491C336K016AT, 293D336X9016C2TE3) and Tape & Reel (TR) (T491C336K016AH, TPSC336K016H0300) formats are optimized for automated pick-and-place equipment. Bulk packaging (T491C336K016AS, TAJC336K016H) is suitable for manual assembly or low-volume production. Format selection depends on assembly process capabilities.

Q: Is lifetime rating at temperature a differentiating factor?

A: The provided data indicates 2000 Hrs @ 125°C for KEMET T491 series parts (T491C336K016AH, T491C336K016AT). Lifetime specifications are not provided for Vishay Sprague and KYOCERA AVX alternatives. For applications requiring documented lifetime performance, KEMET parts provide explicit reliability data. For general-purpose applications, all parts operate within the specified temperature range (-55°C to 125°C) without functional degradation.