T494D336K016AT Equivalent & Substitute Parts

Part Overview

The T494D336K016AT is a 33 µF molded tantalum capacitor manufactured by KEMET, rated for 16 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 (ESR) characteristics. The part is supplied in Tape & Reel (TR) packaging with 1420 units currently in stock.

Equivalent and substitute parts are identified when design requirements permit variations in ESR, packaging format, or manufacturer while maintaining the core electrical specifications: 33 µF capacitance, ±10% tolerance, 16 V rated voltage, 2917 package case, and surface mount mounting type. Substitute selection becomes necessary when primary inventory is unavailable, when packaging format requirements change, or when ESR performance parameters allow for alternative specifications.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	33	µF	Critical - Must match exactly
Voltage - Rated	16	V	Critical - Must match or exceed
Tolerance	±10%	%	Critical - Must match
Package / Case	2917 (7343 Metric)	-	Critical - Physical compatibility
Mounting Type	Surface Mount	-	Critical - Assembly compatibility
ESR (Equivalent Series Resistance)	250	mOhm	Variable - Affects performance but allows substitution within design limits
Operating Temperature	-55 to 125	°C	Critical - Must match or exceed range
Type	Molded	-	Critical - Construction type
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-	Important - Handling and storage requirements
RoHS Status	ROHS3 Compliant	-	Critical - Regulatory compliance

Substitute Part Grouping Explanation

Substitute parts for the T494D336K016AT are qualified based on the following substitution criteria:

Critical Matching Parameters (Non-Negotiable):

Capacitance: 33 µF
Voltage Rating: 16 V
Tolerance: ±10%
Package / Case: 2917 (7343 Metric)
Mounting Type: Surface Mount
Type: Molded Tantalum
Operating Temperature Range: -55°C to 125°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Substitution Allowed):

ESR (Equivalent Series Resistance): Ranges from 150 mOhm to 900 mOhm across substitute options
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®
Manufacturer: KEMET, KYOCERA AVX, or Vishay Sprague
Series Designation: T491, T494, T495, TPS, TAJ, 293D, 593D, or TR3

All substitute parts listed maintain identical physical dimensions (0.287" L x 0.169" W / 7.30mm x 4.30mm) and maximum seated height (0.122" / 3.10mm), ensuring direct mechanical compatibility in PCB layouts.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance (%)	ESR (mOhm)	Package	Packaging Format	Operating Temp (°C)	RoHS Status	Inventory (Pcs)
T494D336K016AT	KEMET	T494	33	16	±10	250	2917	Tape & Reel (TR)	-55 to 125	ROHS3	1420
T491D336K016AT	KEMET	T491	33	16	±10	800	2917	Cut Tape (CT) & Digi-Reel®	-55 to 125	ROHS3	2200
T495D336K016ATE150	KEMET	T495	33	16	±10	150	2917	Tape & Reel (TR)	-55 to 125	ROHS3	1398
T495D336K016ATE225	KEMET	T495	33	16	±10	225	2917	Tape & Reel (TR)	-55 to 125	ROHS3	1564
293D336X9016D2TE3	Vishay Sprague	293D	33	16	±10	700	2917	Cut Tape (CT) & Digi-Reel®	-55 to 125	ROHS3	2153
593D336X9016D2TE3	Vishay Sprague	593D	33	16	±10	225	2917	Tape & Reel (TR)	-55 to 125	ROHS3	1816
TAJD336K016RNJ	KYOCERA AVX	TAJ	33	16	±10	900	2917	Cut Tape (CT) & Digi-Reel®	-55 to 125	ROHS3	1974
TPSD336K016R0200	KYOCERA AVX	TPS	33	16	±10	200	2917	Tape & Reel (TR)	-55 to 125	ROHS3	2883
TR3D336K016C0150	Vishay Sprague	TR3	33	16	±10	150	2917	Tape & Reel (TR)	-55 to 125	ROHS3	1554

Engineering Selection Recommendations

All substitute parts listed are Active product status components and maintain ROHS3 compliance with Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with standard PCB assembly processes and regulatory requirements.

Selection by ESR Performance:

For applications requiring lower ESR performance than the primary part (250 mOhm), the following options provide reduced equivalent series resistance:

T495D336K016ATE150 (150 mOhm) - KEMET T495 series
TPSD336K016R0200 (200 mOhm) - KYOCERA AVX TPS series
TR3D336K016C0150 (150 mOhm) - Vishay Sprague TR3 series
T495D336K016ATE225 (225 mOhm) - KEMET T495 series
593D336X9016D2TE3 (225 mOhm) - Vishay Sprague 593D series

Selection by ESR Performance (Higher):

For applications where higher ESR is acceptable:

T491D336K016AT (800 mOhm) - KEMET T491 series
293D336X9016D2TE3 (700 mOhm) - Vishay Sprague 293D series
TAJD336K016RNJ (900 mOhm) - KYOCERA AVX TAJ series

Selection by Packaging Format:

For Tape & Reel (TR) packaging (matching primary part format):

T495D336K016ATE150, T495D336K016ATE225, TPSD336K016R0200, 593D336X9016D2TE3, TR3D336K016C0150

For Cut Tape (CT) & Digi-Reel® packaging:

T491D336K016AT, 293D336X9016D2TE3, TAJD336K016RNJ

Selection by Manufacturer:

KEMET options: T491D336K016AT, T495D336K016ATE150, T495D336K016ATE225

KYOCERA AVX options: TPSD336K016R0200, TAJD336K016RNJ

Vishay Sprague options: 293D336X9016D2TE3, 593D336X9016D2TE3, TR3D336K016C0150

Frequently Asked Questions (FAQ)

Q: Can I substitute a part with different ESR without affecting circuit performance?

A: ESR variation is permitted within the substitute parts listed. However, ESR directly affects circuit behavior in applications sensitive to impedance characteristics, such as high-frequency filtering or power delivery networks. Circuit design specifications determine acceptable ESR ranges. All listed substitutes maintain the same 33 µF capacitance and 16 V voltage rating, ensuring basic functional compatibility.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging provides components on cut tape segments, typically used for lower-volume orders or manual assembly. Both formats contain identical components; packaging selection depends on assembly process requirements and order quantities.

Q: Are all substitute parts physically compatible with the original PCB layout?

A: Yes. All substitute parts share identical package designation (2917 / 7343 Metric), physical dimensions (0.287" L x 0.169" W / 7.30mm x 4.30mm), and maximum seated height (0.122" / 3.10mm). Direct mechanical substitution on existing PCB layouts is supported without layout modifications.

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

A: Yes. All substitute parts listed are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), matching the primary part's regulatory status. All components are classified as Active product status, ensuring ongoing manufacturer support and availability.

Q: Which substitute part offers the lowest ESR?

A: Two parts offer 150 mOhm ESR, the lowest among substitutes: T495D336K016ATE150 (KEMET T495 series, Tape & Reel) and TR3D336K016C0150 (Vishay Sprague TR3 series, Tape & Reel).

Q: Which substitute part has the highest inventory availability?

A: TPSD336K016R0200 (KYOCERA AVX TPS series) has the highest inventory with 2883 units in stock, followed by T491D336K016AT (KEMET T491 series) with 2200 units.

Q: Can I use a substitute part with higher ESR in a noise-sensitive application?

A: Higher ESR increases impedance at high frequencies, which may affect filtering performance in noise-sensitive circuits. Applications requiring specific ESR performance must select substitutes within the design's acceptable ESR range. Consult circuit design specifications to determine ESR compatibility.

Q: Are there any temperature-related differences between substitute parts?

A: All substitute parts maintain the same operating temperature range (-55°C to 125°C) as the primary part. Lifetime specifications at elevated temperatures vary by manufacturer and series; refer to individual datasheets for specific reliability data at operating temperatures.

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