TAJS154K050RNJ Equivalent & Substitute Parts

Part Overview

The TAJS154K050RNJ is a 0.15 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 50 V operation in a 1206 (3216 Metric) surface mount package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts may be required due to inventory availability, supply chain constraints, or specific application requirements where alternative electrical characteristics within acceptable parameters are permissible.

Substiute Parts

TAJS154K050RNJ

KYOCERA AVXIn Stock: 1033TAJS154K050RNJ Datasheet

Current PartRFQ

TPSA154K050R9000

KYOCERA AVXIn Stock: 757TPSA154K050R9000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAJS154K050RNJ is determined by the following critical parameters:

• Capacitance value: 0.15 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating: 50 V (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (exact match required)

The TPSA154K050R9000 meets all substitution criteria. Both parts are manufactured by KYOCERA AVX, share identical electrical specifications, and are housed in the same physical package. The primary difference is the Equivalent Series Resistance (ESR): the main part specifies 16 Ohm, while the substitute specifies 9 Ohm. This lower ESR in the substitute part represents an improved electrical characteristic and does not restrict substitution in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

Both the TAJS154K050RNJ and TPSA154K050R9000 are Active status components manufactured by KYOCERA AVX and maintain full ROHS3 compliance. Selection between these parts should be based on the following factors:

The TAJS154K050RNJ offers a seated height of 0.047" (1.20mm), making it suitable for applications with strict height constraints or high-density PCB layouts.

The TPSA154K050R9000 provides a lower ESR of 9 Ohm compared to 16 Ohm, which may be advantageous in applications requiring reduced impedance or improved transient response characteristics. The seated height is 0.071" (1.80mm).

Both parts are functionally equivalent within the specified electrical and mechanical parameters. Component selection should account for PCB layout requirements, thermal management considerations, and specific application performance criteria.

Frequently Asked Questions (FAQ)

Q: Can TPSA154K050R9000 be used as a direct replacement for TAJS154K050RNJ?

A: Yes. Both parts share identical capacitance (0.15 µF), tolerance (±10%), voltage rating (50 V), package (1206), and operating temperature range (-55°C ~ 125°C). The lower ESR of the substitute part does not restrict substitution.

Q: What is the significance of the ESR difference between these parts?

A: The TPSA154K050R9000 has an ESR of 9 Ohm versus 16 Ohm for the TAJS154K050RNJ. Lower ESR generally results in reduced impedance and improved high-frequency performance. This characteristic makes the substitute part suitable for the same applications.

Q: Are there physical package differences I should consider?

A: Both parts use the 1206 (3216 Metric) package with identical length and width (0.126" x 0.063"). The seated height differs: TAJS154K050RNJ is 0.047" (1.20mm) while TPSA154K050R9000 is 0.071" (1.80mm). Verify PCB clearance requirements before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, have Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status. Compliance requirements are identical.

Q: Which part should I select for new designs?

A: Selection depends on application-specific requirements. For space-constrained designs, the TAJS154K050RNJ offers lower profile. For applications benefiting from lower ESR characteristics, the TPSA154K050R9000 is appropriate. Both are Active status and suitable for production use.