T494D107K010AS Equivalent & Substitute Parts

Part Overview

The T494D107K010AS is a 100 µF molded tantalum capacitor rated at 10 V with 150 mOhm equivalent series resistance (ESR), manufactured by KEMET in the 2917 (7343 Metric) package. This component is classified as obsolete product status. Due to its obsolete designation, equivalent and substitute parts from active product lines are necessary for ongoing design support, procurement continuity, and new production requirements. Substitute parts maintain the same electrical specifications (capacitance, voltage rating, tolerance) and mechanical form factor while offering improved availability and compliance status.

Key Parameters

Parameter	Value	Unit
Capacitance	100	µF
Voltage - Rated	10	V
Tolerance	±10%	-
Type	Molded	-
ESR (Equivalent Series Resistance)	150	mOhm
Operating Temperature Range	-55°C to 125°C	-
Package / Case	2917 (7343 Metric)	-
Mounting Type	Surface Mount	-
Lifetime @ Temperature	2000 Hrs @ 125°C	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the T494D107K010AS are classified into three categories based on electrical and mechanical compatibility:

Direct Equivalent (Same Electrical Specifications): Parts that maintain identical capacitance (100 µF), voltage rating (10 V), tolerance (±10%), ESR (150 mOhm), package (2917), and operating temperature range (-55°C to 125°C). These parts differ only in packaging format (Tape & Reel vs. bulk) or product status (Active vs. Obsolete).

Upgraded Voltage Rating: Parts with the same capacitance (100 µF), tolerance (±10%), ESR (150 mOhm), and package (2917), but rated at higher voltage (16 V instead of 10 V). These provide enhanced voltage margin and are electrically compatible in 10 V applications.

Similar ESR Variants: Parts with identical capacitance (100 µF), voltage rating (10 V), tolerance (±10%), and package (2917), but with different ESR values (50 mOhm to 100 mOhm). These offer improved performance characteristics while maintaining core electrical parameters.

Key Parameters for Substitution:

Capacitance: 100 µF (fixed)
Voltage Rating: 10 V minimum (16 V acceptable as upgrade)
Tolerance: ±10% (fixed)
Package: 2917 (7343 Metric) (fixed)
Operating Temperature: -55°C to 125°C (fixed)
Mounting Type: Surface Mount (fixed)

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR (mOhm)	Package	Product Status	RoHS Status
T494D107K010AS	KEMET	100	10	±10%	150	2917	Obsolete	Non-compliant
T494D107K010AT	KEMET	100	10	±10%	150	2917	Active	RoHS3 Compliant
T494D107K016AH	KEMET	100	16	±10%	150	2917	Active	Non-compliant
T495X107K010AHE100	KEMET	100	10	±10%	100	2917	Active	Non-compliant
TPSD107K016H0150	KYOCERA AVX	100	16	±10%	150	2917	Active	Non-compliant
TAJD107K010H	KYOCERA AVX	100	10	±10%	700	2917	Active	Non-compliant
TPSD107K010H0050	KYOCERA AVX	100	10	±10%	50	2917	Active	Non-compliant
TPSD107K010H0065	KYOCERA AVX	100	10	±10%	65	2917	Active	Non-compliant
TPSD107K010H0080	KYOCERA AVX	100	10	±10%	80	2917	Active	Non-compliant
TPSD107K010H0100	KYOCERA AVX	100	10	±10%	100	2917	Active	Non-compliant
TR3D107K010C0050	Vishay Sprague	100	10	±10%	50	2917	Active	RoHS3 Compliant

Engineering Selection Recommendations

Primary Direct Equivalent: T494D107K010AT (KEMET) is the recommended direct substitute for T494D107K010AS. Both parts share identical electrical specifications (100 µF, 10 V, ±10%, 150 mOhm ESR) and mechanical form factor (2917 package). T494D107K010AT is active product status with RoHS3 compliance, providing superior procurement availability and regulatory alignment compared to the obsolete original part.

Voltage-Upgraded Alternative: T494D107K016AH (KEMET) provides a voltage-rated upgrade option (16 V vs. 10 V) while maintaining all other specifications. This part is suitable for applications where increased voltage margin is beneficial. Product status is active, though RoHS compliance status is non-compliant.

Lower ESR Options: TR3D107K010C0050 (Vishay Sprague) and TPSD107K010H0050 (KYOCERA AVX) offer reduced ESR (50 mOhm vs. 150 mOhm) with identical capacitance, voltage, and package specifications. TR3D107K010C0050 provides the additional advantage of RoHS3 compliance. These variants are suitable for applications requiring lower impedance characteristics.

Multi-Source Availability: TPSD107K010H0065 (KYOCERA AVX) and TPSD107K010H0080 (KYOCERA AVX) provide intermediate ESR values (65 mOhm and 80 mOhm respectively) with active product status, supporting supply chain diversification across multiple manufacturers.

Compliance Considerations: For RoHS3-compliant designs, select T494D107K010AT or TR3D107K010C0050. All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating and operating temperature range (-55°C to 125°C) consistent with the original specification.

Frequently Asked Questions (FAQ)

Q: Can T494D107K010AT directly replace T494D107K010AS in existing designs?

A: Yes. T494D107K010AT is a direct electrical and mechanical equivalent with identical capacitance (100 µF), voltage rating (10 V), tolerance (±10%), ESR (150 mOhm), and 2917 package. The only differences are packaging format (Tape & Reel) and product status (Active vs. Obsolete). No circuit modifications are required.

Q: What is the difference between the 10 V and 16 V rated versions?

A: T494D107K016AH is rated for 16 V operation compared to 10 V for the original part. All other specifications remain identical (100 µF capacitance, ±10% tolerance, 150 mOhm ESR, 2917 package). The 16 V version provides additional voltage margin and is electrically compatible in 10 V applications. Selection depends on circuit voltage requirements and design margin preferences.

Q: Why do some substitute parts have different ESR values?

A: ESR (Equivalent Series Resistance) varies based on internal construction and manufacturing process. Parts with lower ESR (50 mOhm to 100 mOhm) offer improved high-frequency performance and reduced heat generation. Parts with higher ESR (700 mOhm for TAJD107K010H) represent different product series with different performance characteristics. Selection should be based on circuit impedance requirements and frequency response specifications.

Q: Are all substitute parts RoHS compliant?

A: No. T494D107K010AT and TR3D107K010C0050 are RoHS3 compliant. Other substitutes (T494D107K016AH, KYOCERA AVX TPS series, TAJD107K010H) are RoHS non-compliant. For RoHS-compliant designs, specify T494D107K010AT or TR3D107K010C0050.

Q: What is the significance of the 2917 package designation?

A: 2917 is the imperial package code; 7343 Metric is the equivalent metric designation. All substitute parts use this identical package with dimensions 0.287" L × 0.169" W (7.30 mm × 4.30 mm) and maximum seated height 0.122" (3.10 mm). This ensures mechanical compatibility with existing PCB layouts and component placement equipment.

Q: Can I use TAJD107K010H as a substitute despite its higher ESR (700 mOhm)?

A: TAJD107K010H maintains identical capacitance (100 µF), voltage (10 V), tolerance (±10%), and package (2917) specifications. However, its significantly higher ESR (700 mOhm vs. 150 mOhm) results in substantially different electrical performance, including increased impedance and heat generation. Use only if circuit design specifically accommodates this higher ESR characteristic.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed substitute parts carry MSL 1 rating, matching the original T494D107K010AS specification.

Q: Are there inventory considerations when selecting substitutes?

A: Yes. Inventory levels vary: TR3D107K010C0050 (Vishay Sprague) has 9908 units in stock, while T494D107K010AT (KEMET) has 1387 units. TPSD107K010H0065 (KYOCERA AVX) has 1601 units. Verify current availability with your supplier for production scheduling.

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