Equivalent & Substitute Parts for T494B336K010AS

Part Overview

The T494B336K010AS is a 33 µF molded tantalum capacitor manufactured by KEMET, rated for 10 V with ±10% tolerance and 1.4 Ohm equivalent series resistance (ESR). This component is housed in a 1411 (3528 Metric) surface mount package and operates across the temperature range of -55°C to 125°C with a lifetime specification of 2000 hours at 125°C.

The T494B336K010AS is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this capacitor specification.

Substiute Parts

T494B336K010AS

KEMETIn Stock: 1147T494B336K010AS Datasheet

Current PartRFQ

T494B336K010AT

KEMETIn Stock: 3265T494B336K010AT Datasheet

DirectRFQ

TAJB336K010H

KYOCERA AVXIn Stock: 938TAJB336K010H Datasheet

SimilarRFQ

TPSB336K010H0250

KYOCERA AVXIn Stock: 812TPSB336K010H0250 Datasheet

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TPSB336K010H0650

KYOCERA AVXIn Stock: 748TPSB336K010H0650 Datasheet

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TR3B336K010C0600

Vishay SpragueIn Stock: 4732TR3B336K010C0600 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T494B336K010AS are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Primary Matching Criteria:

• Capacitance: 33 µF (exact match required)
• Voltage Rating: 10 V (exact match required)
• Tolerance: ±10% (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Type: Molded Tantalum (exact match required)

Secondary Consideration:

• ESR (Equivalent Series Resistance): Variations are permitted within the substitute group, as ESR differences do not affect the core electrical specification but may impact circuit performance characteristics.

All identified substitutes meet the primary matching criteria. Variations in ESR values (ranging from 250 mOhm to 1.8 Ohm) reflect different manufacturer designs and series offerings while maintaining functional equivalence for the specified 33 µF, 10 V, ±10% tantalum capacitor application.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: T494B336K010AT (KEMET)

The T494B336K010AT is the direct equivalent from KEMET, the original manufacturer of the obsolete T494B336K010AS. This part maintains identical electrical specifications (33 µF, 10 V, ±10%, 1.4 Ohm ESR) and mechanical dimensions. The T494B336K010AT is classified as Active with ROHS3 compliance, providing superior supply chain availability and regulatory alignment compared to the obsolete original part.

Secondary Recommendations:

TR3B336K010C0600 (Vishay Sprague) is an alternative substitute with Active product status and ROHS3 compliance. While ESR is specified at 600 mOhm (compared to 1.4 Ohm in the original), all primary electrical and mechanical parameters remain equivalent.

TPSB336K010H0250 and TPSB336K010H0650 (KYOCERA AVX) are functionally equivalent alternatives with Active product status. These parts offer ESR values of 250 mOhm and 650 mOhm respectively, providing design flexibility for applications where lower ESR characteristics are beneficial.

TAJB336K010H (KYOCERA AVX) is an Active substitute with 1.8 Ohm ESR, maintaining all primary specifications while offering alternative sourcing.

Compliance Consideration:

For applications requiring RoHS3 compliance, T494B336K010AT and TR3B336K010C0600 are the appropriate selections. For applications without RoHS compliance requirements, all listed substitutes are functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can T494B336K010AT be used as a direct replacement for T494B336K010AS?

A: Yes. The T494B336K010AT is the direct equivalent from KEMET with identical electrical specifications (33 µF, 10 V, ±10%, 1.4 Ohm ESR) and mechanical package (1411 / 3528 Metric). The primary difference is product status: T494B336K010AT is Active while T494B336K010AS is Obsolete. T494B336K010AT also provides ROHS3 compliance.

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

A: ESR (Equivalent Series Resistance) affects circuit performance characteristics such as ripple current handling and transient response, but does not alter the core capacitance, voltage rating, or tolerance specifications. All listed substitutes maintain the required 33 µF, 10 V, ±10% specification. ESR variations (250 mOhm to 1.8 Ohm) reflect different manufacturer designs. Selection should consider circuit requirements for ripple current and transient performance.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts are specified for the 1411 (3528 Metric) package with identical dimensions: 0.138" L x 0.110" W (3.50mm x 2.80mm) and maximum seated height of 0.083" (2.10mm). All are surface mount components suitable for the same PCB layout.

Q: Which substitute offers the best supply chain availability?

A: T494B336K010AT (KEMET) and TR3B336K010C0600 (Vishay Sprague) are both classified as Active products with current manufacturing status, providing superior availability compared to the Obsolete T494B336K010AS. KYOCERA AVX parts (TAJB336K010H, TPSB336K010H0250, TPSB336K010H0650) are also Active.

Q: Do all substitutes operate across the same temperature range?

A: Yes. All substitute parts are specified for -55°C to 125°C operating temperature range, matching the original T494B336K010AS specification.

Q: What is the difference between packaging options (Cut Tape, Tape & Reel)?

A: Packaging differences (Cut Tape, Tape & Reel, or unspecified) relate to delivery and handling format only and do not affect electrical or mechanical performance. Selection should be based on manufacturing process requirements and inventory management practices.

Q: Are there RoHS compliance differences among the substitutes?

A: Yes. T494B336K010AT (KEMET) and TR3B336K010C0600 (Vishay Sprague) are ROHS3 compliant. TAJB336K010H, TPSB336K010H0250, and TPSB336K010H0650 (KYOCERA AVX) are RoHS non-compliant. For applications requiring RoHS3 compliance, select T494B336K010AT or TR3B336K010C0600.