TAJS334K035RNJ Equivalent & Substitute Parts

Part Overview

The TAJS334K035RNJ is a 0.33 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 35 V operation in a 1206 (3216 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 in compact form factors. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and rated voltage.

Key Parameters

Parameter	Value
Capacitance	0.33 µF
Tolerance	±10%
Voltage - Rated	35 V
Type	Molded Tantalum
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TAJS334K035RNJ are qualified based on the following criteria:

Identical capacitance value: 0.33 µF
Identical tolerance: ±10%
Identical rated voltage: 35 V
Identical package footprint: 1206 (3216 Metric)
Identical mounting type: Surface Mount
Identical operating temperature range: -55°C ~ 125°C
Identical compliance certifications: ROHS3 Compliant, REACH Unaffected, EAR99 classification
Identical moisture sensitivity level: MSL 1 (Unlimited)

Variations in ESR (Equivalent Series Resistance) and seated height are permitted within the specified electrical and mechanical tolerances for this product category. All substitute parts maintain the same functional performance envelope for general purpose tantalum capacitor applications.

Parameter Comparison

Parameter	TAJS334K035RNJ	TAJA334K035RNJ	293D334X9035A2TE3	T491A334K035AT
Manufacturer	KYOCERA AVX	KYOCERA AVX	Vishay Sprague	KEMET
Series	TAJ	TAJ	TANTAMOUNT™, 293D	T491
Capacitance	0.33 µF	0.33 µF	0.33 µF	0.33 µF
Tolerance	±10%	±10%	±10%	±10%
Voltage - Rated	35 V	35 V	35 V	35 V
Type	Molded	Molded	Molded	Molded
ESR (Equivalent Series Resistance)	15 Ohm	15 Ohm	13 Ohm	15 Ohm
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max)	0.047" (1.20mm)	0.071" (1.80mm)	0.071" (1.80mm)	0.071" (1.80mm)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99

Engineering Selection Recommendations

All four parts listed—TAJS334K035RNJ, TAJA334K035RNJ, 293D334X9035A2TE3, and T491A334K035AT—maintain Active product status and full compliance with ROHS3, REACH, and EAR99 classifications. Selection between these parts is determined by availability, packaging format preference, and seated height constraints specific to the application circuit board layout.

The TAJS334K035RNJ features a maximum seated height of 0.047" (1.20mm), making it suitable for applications with strict height limitations. The substitute parts TAJA334K035RNJ, 293D334X9035A2TE3, and T491A334K035AT all feature a maximum seated height of 0.071" (1.80mm) and are interchangeable from an electrical standpoint.

The 293D334X9035A2TE3 (Vishay Sprague) offers a marginally lower ESR of 13 Ohm compared to the 15 Ohm specification of the other parts, which may provide a minor advantage in high-frequency filtering applications, though all parts remain functionally equivalent for general purpose use.

Frequently Asked Questions (FAQ)

Q: Can TAJA334K035RNJ be used as a direct replacement for TAJS334K035RNJ?

A: TAJA334K035RNJ is electrically equivalent and maintains identical capacitance, voltage rating, tolerance, and operating temperature specifications. The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and seated height (0.071" versus 0.047"). If circuit board clearance permits the increased height, this part is functionally compatible.

Q: What is the significance of the ESR difference between 293D334X9035A2TE3 and other substitutes?

A: The 293D334X9035A2TE3 specifies 13 Ohm ESR compared to 15 Ohm for other parts. This 2 Ohm difference is within normal manufacturing tolerance ranges for tantalum capacitors and does not affect general purpose application performance. Both values are acceptable for the same circuit designs.

Q: Are all substitute parts suitable for the same PCB layout?

A: All parts share identical footprint dimensions (0.126" L x 0.063" W / 3.20mm x 1.60mm). However, the TAJS334K035RNJ has a maximum seated height of 0.047" (1.20mm), while substitute parts measure 0.071" (1.80mm). Verify available vertical clearance on the PCB before selecting a substitute with increased height.

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

A: All four parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99. All maintain MSL 1 (Unlimited) moisture sensitivity rating. Compliance certifications are identical across all options.

Q: What packaging formats are available for these parts?

A: TAJS334K035RNJ and 293D334X9035A2TE3 are supplied in Tape & Reel (TR) format. TAJA334K035RNJ and T491A334K035AT are supplied in Cut Tape (CT) & Digi-Reel® format. Select based on assembly equipment compatibility and procurement volume requirements.

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