TAJS154K035RNJ Equivalent & Substitute Parts

Part Overview

The TAJS154K035RNJ is a 0.15 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 ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the critical parameters that define this capacitor category.

Substiute Parts

TAJS154K035RNJ

KYOCERA AVXIn Stock: 829TAJS154K035RNJ Datasheet

Current PartRFQ

TAJA154K035RNJ

KYOCERA AVXIn Stock: 3424TAJA154K035RNJ Datasheet

MFR RecommendedRFQ

T491A154K035AT

KEMETIn Stock: 5775T491A154K035AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAJS154K035RNJ is determined by strict equivalence in the following parameters:

• Capacitance value: 0.15 µF
• Tolerance: ±10%
• Rated voltage: 35 V
• Package type: 1206 (3216 Metric)
• Mounting configuration: Surface Mount
• Operating temperature range: -55°C ~ 125°C
• Moisture sensitivity level: 1 (Unlimited)
• Compliance: ROHS3 Compliant

Substitute parts identified maintain these electrical and mechanical specifications. Variations in ESR (Equivalent Series Resistance), manufacturer size code, and seated height are permitted within the constraints of the 1206 package envelope and do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and full ROHS3 compliance with REACH Unaffected designation. The TAJA154K035RNJ is manufactured by KYOCERA AVX, the same manufacturer as the main part, and provides direct electrical equivalence with identical ESR specification. The T491A154K035AT, manufactured by KEMET, offers a lower ESR value of 19 Ohm compared to 21 Ohm, which may provide performance benefits in applications sensitive to impedance characteristics. Both substitute parts are available in production quantities and meet all specified compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can TAJA154K035RNJ be used as a direct replacement for TAJS154K035RNJ?

A: Yes. Both parts are manufactured by KYOCERA AVX with identical electrical specifications: 0.15 µF capacitance, ±10% tolerance, 35 V rating, and 21 Ohm ESR. The primary difference is seated height: TAJS154K035RNJ measures 0.047" (1.20mm) while TAJA154K035RNJ measures 0.071" (1.80mm). Both heights remain within the 1206 package envelope and are compatible with standard PCB assembly processes.

Q: What is the difference between KEMET T491A154K035AT and KYOCERA AVX alternatives?

A: The T491A154K035AT is functionally equivalent in capacitance, voltage rating, tolerance, and package type. The primary distinction is ESR: T491A154K035AT specifies 19 Ohm compared to 21 Ohm for the KYOCERA AVX parts. This lower ESR may reduce heat generation in high-frequency or high-ripple current applications. All three parts share identical operating temperature range, MSL rating, and compliance certifications.

Q: Are there any height restrictions when substituting these parts?

A: The TAJS154K035RNJ has a maximum seated height of 0.047" (1.20mm), while both substitute parts measure 0.071" (1.80mm). Verify PCB clearance and assembly constraints before substitution. All three parts conform to the 1206 (3216 Metric) package standard and are compatible with standard surface mount assembly equipment.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. TAJS154K035RNJ, TAJA154K035RNJ, and T491A154K035AT are all ROHS3 compliant, REACH Unaffected, and classified as MSL 1 (Unlimited moisture sensitivity). All parts are rated for -55°C to 125°C operation and are suitable for equivalent applications.