TAJS104K020RNJ Equivalent & Substitute Parts

Part Overview

The TAJS104K020RNJ is a 0.1 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 20 V operation in a 1206 (3216 Metric) surface mount package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter tolerances for this capacitor category.

Substiute Parts

TAJS104K020RNJ

KYOCERA AVXIn Stock: 1121TAJS104K020RNJ Datasheet

Current PartRFQ

293D104X9035A2TE3

Vishay SpragueIn Stock: 1784293D104X9035A2TE3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TAJS104K020RNJ is determined by the following criteria:

• Capacitance Value: Must be 0.1 µF
• Tolerance: Must be ±10%
• Package / Case: Must be 1206 (3216 Metric)
• Mounting Type: Must be Surface Mount
• Type: Must be Molded Tantalum
• Operating Temperature Range: Must support -55°C ~ 125°C
• Voltage Rating: Must be equal to or greater than 20 V
• RoHS Compliance: Must be ROHS3 Compliant
• Moisture Sensitivity Level: Must be MSL 1 or better

The substitute part 293D104X9035A2TE3 meets all substitution criteria with a higher voltage rating (35 V), which provides additional design margin while maintaining identical capacitance, tolerance, package, and thermal specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the TAJS104K020RNJ and 293D104X9035A2TE3 are Active product status components with ROHS3 compliance and REACH Unaffected certification. The 293D104X9035A2TE3 substitute provides a higher voltage rating (35 V versus 20 V) while maintaining identical capacitance, tolerance, and package specifications. The substitute exhibits lower ESR (20 Ohm versus 25 Ohm) and identical thermal operating range. Height difference of 0.024" (0.60mm) must be evaluated for PCB layout constraints. Both components carry MSL 1 rating, indicating no moisture sensitivity restrictions.

Frequently Asked Questions (FAQ)

Q: Can the 293D104X9035A2TE3 be used as a direct replacement for the TAJS104K020RNJ?

A: Yes, the 293D104X9035A2TE3 meets all substitution criteria. Both components share identical capacitance (0.1 µF), tolerance (±10%), package (1206), and operating temperature range (-55°C ~ 125°C). The substitute's higher voltage rating (35 V) provides additional design margin.

Q: What is the significance of the voltage rating difference?

A: The substitute part is rated for 35 V compared to the main part's 20 V rating. This higher rating does not affect circuit operation at 20 V or below and provides additional safety margin. No circuit redesign is required.

Q: Are there physical mounting differences between these parts?

A: Both parts use the same 1206 (3216 Metric) package with identical length and width (0.126" x 0.063"). The substitute has a maximum seated height of 0.071" compared to 0.047" for the main part. Verify PCB clearance for the additional 0.024" height.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes, both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are both parts RoHS compliant?

A: Yes, both the TAJS104K020RNJ and 293D104X9035A2TE3 are ROHS3 compliant and REACH Unaffected.