T494D227M010AS Equivalent & Substitute Parts Reference

Part Overview

The T494D227M010AS is a 220 µF molded tantalum capacitor manufactured by KEMET, rated for 10 V operation in a 2917 (7343 Metric) surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -55°C to 125°C with a lifetime specification of 2000 hours at 125°C. Substitute parts must maintain electrical and mechanical compatibility while meeting current design and compliance requirements.

Key Parameters

Parameter	Value	Unit	Substitution Criticality
Capacitance	220	µF	Critical
Voltage Rating	10	V	Critical
Tolerance	±20%	%	Critical
Package / Case	2917 (7343 Metric)	-	Critical
ESR (Equivalent Series Resistance)	150	mOhm	Application-Dependent
Operating Temperature Range	-55°C to 125°C	-	Critical
Mounting Type	Surface Mount	-	Critical
Type	Molded	-	Critical
Moisture Sensitivity Level	1 (Unlimited)	-	Standard

Substitute Part Grouping Explanation

Substitute parts for the T494D227M010AS are grouped based on strict adherence to the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 220 µF (exact match required)
Voltage Rating: 10 V (exact match required)
Package / Case: 2917 (7343 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
Type: Molded Tantalum (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Variable Parameters (Application-Dependent):

Tolerance: ±10% or ±20% (both acceptable; ±10% provides tighter tolerance)
ESR (Equivalent Series Resistance): 50 mOhm to 600 mOhm (selection depends on circuit requirements)
Product Status: Active substitutes preferred over obsolete
RoHS Compliance: ROHS3 Compliant substitutes available; non-compliant alternatives also listed
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or bulk

Substitutes are classified into two categories:

Upgrade Substitutes: Parts with improved specifications (tighter tolerance, lower ESR, or active product status) that provide direct functional improvement.

Similar Substitutes: Parts meeting all critical parameters with variations in tolerance, ESR, or compliance status, suitable for applications where the original specification is not strictly required.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR (mOhm)	Package	Product Status	RoHS Status	Inventory (Pcs)
T494D227M010AS	KEMET	220	10	±20%	150	2917	Obsolete	Non-compliant	842
TPSD227K010H0150	KYOCERA AVX	220	10	±10%	150	2917	Active	Non-compliant	649
293D227X9010D2TE3	Vishay Sprague	220	10	±10%	600	2917	Active	ROHS3 Compliant	1516
TAJD227M010HNJ	KYOCERA AVX	220	10	±20%	500	2917	Active	Non-compliant	1104
TAJE227M010H	KYOCERA AVX	220	10	±20%	500	2917	Active	Non-compliant	1036
TPSD227M010H0050	KYOCERA AVX	220	10	±20%	50	2917	Active	Non-compliant	878
TPSD227M010H0100	KYOCERA AVX	220	10	±20%	100	2917	Active	Non-compliant	711
TR3D227M010C0050	Vishay Sprague	220	10	±20%	50	2917	Active	ROHS3 Compliant	695

Engineering Selection Recommendations

For Direct Replacement with Improved Specifications:

Select TPSD227K010H0150 (KYOCERA AVX) when the application benefits from tighter capacitance tolerance (±10% versus ±20%). This part maintains identical ESR (150 mOhm) and voltage rating while offering active product status and improved long-term availability. Packaging is Tape & Reel format.

For RoHS3 Compliance Requirements:

Select 293D227X9010D2TE3 (Vishay Sprague TANTAMOUNT™ series) or TR3D227M010C0050 (Vishay Sprague) when RoHS3 compliance is mandatory. Both parts meet all critical electrical and mechanical parameters. The 293D227X9010D2TE3 variant has higher ESR (600 mOhm) suitable for general-purpose applications; TR3D227M010C0050 offers lower ESR (50 mOhm) for noise-sensitive circuits.

For Low ESR Applications:

Select TPSD227M010H0050 (KYOCERA AVX, 50 mOhm) or TR3D227M010C0050 (Vishay Sprague, 50 mOhm) when circuit performance requires minimal equivalent series resistance. Both maintain ±20% tolerance and active product status. TR3D227M010C0050 additionally provides RoHS3 compliance.

For Tolerance-Matched Replacement:

Select TAJD227M010HNJ or TAJE227M010H (both KYOCERA AVX TAJ series) to maintain ±20% tolerance specification identical to the original part. Both are active products with higher ESR (500 mOhm) suitable for general-purpose filtering applications.

For Mid-Range ESR Selection:

Select TPSD227M010H0100 (KYOCERA AVX, 100 mOhm) as a compromise between low-ESR and standard-ESR requirements when circuit design permits moderate impedance.

All recommended substitutes operate across the identical temperature range (-55°C to 125°C), maintain Moisture Sensitivity Level 1 (Unlimited), and are available in surface mount 2917 (7343 Metric) package format.

Frequently Asked Questions (FAQ)

Q: Can TPSD227K010H0150 replace T494D227M010AS in all applications?

A: TPSD227K010H0150 is electrically and mechanically compatible with T494D227M010AS. The primary difference is tighter capacitance tolerance (±10% versus ±20%). Applications requiring the original ±20% tolerance specification can use this part without circuit modification. Applications with tighter tolerance requirements benefit from this upgrade.

Q: What is the difference between the KYOCERA AVX TPS and TAJ series substitutes?

A: Both TPS and TAJ series are molded tantalum capacitors in the 2917 package with 220 µF capacitance and 10 V rating. The TPS series offers variable ESR options (50 mOhm, 100 mOhm, 150 mOhm) with ±10% or ±20% tolerance. The TAJ series provides ±20% tolerance with 500 mOhm ESR. Selection depends on circuit ESR requirements and tolerance specifications.

Q: Why does 293D227X9010D2TE3 have higher ESR (600 mOhm) than the original part (150 mOhm)?

A: ESR varies by design and manufacturing process. The 293D227X9010D2TE3 (Vishay Sprague TANTAMOUNT™) is suitable for general-purpose filtering where moderate ESR is acceptable. For applications requiring lower ESR, select TPSD227M010H0050 (50 mOhm) or TR3D227M010C0050 (50 mOhm).

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory in certain markets and applications. If required, select 293D227X9010D2TE3 or TR3D227M010C0050 (both Vishay Sprague, ROHS3 Compliant). If not required, KYOCERA AVX alternatives (TPSD series, TAJ series) are available with lower ESR options.

Q: Can I use a substitute with different ESR in my circuit?

A: ESR affects circuit performance in filtering, ripple current handling, and noise characteristics. Verify that the substitute's ESR meets your circuit requirements. Lower ESR (50 mOhm) is suitable for noise-sensitive applications; higher ESR (500-600 mOhm) is acceptable for general-purpose filtering. Consult circuit design specifications before selection.

Q: What packaging formats are available for substitutes?

A: Substitutes are available in Tape & Reel (TR) format for automated assembly, Cut Tape (CT) format for mixed-volume orders, and bulk packaging. TPSD227K010H0150, TPSD227M010H0050, TPSD227M010H0100, TAJD227M010HNJ, and TR3D227M010C0050 are supplied in Tape & Reel format. Verify packaging requirements with your procurement process.

Q: Are all substitutes rated for -55°C to 125°C operation?

A: All listed substitutes operate across the identical temperature range (-55°C to 125°C) as the original T494D227M010AS. Moisture Sensitivity Level 1 (Unlimited) is maintained across all alternatives, requiring no special handling modifications.

Q: What is the difference between TAJD227M010HNJ and TAJE227M010H?

A: Both are KYOCERA AVX TAJ series parts with 220 µF, 10 V, ±20% tolerance, and 500 mOhm ESR. TAJD227M010HNJ is supplied in Tape & Reel format; TAJE227M010H packaging format is not specified in available data. Verify packaging compatibility with your assembly process before selection.

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