TAJS685M006RNJ Equivalent & Substitute Parts

Part Overview

The TAJS685M006RNJ is a 6.8 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 6.3 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 performance across the operating temperature range of -55°C to 125°C. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and supply chain continuity while maintaining electrical and mechanical compatibility.

Substiute Parts

TAJS685M006RNJ

KYOCERA AVXIn Stock: 754TAJS685M006RNJ Datasheet

Current PartRFQ

TAJA685M006RNJ

KYOCERA AVXIn Stock: 5033TAJA685M006RNJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAJS685M006RNJ is determined by strict alignment of the following critical parameters:

• Capacitance value: 6.8 µF
• Tolerance: ±20%
• Rated voltage: 6.3 V
• Package type: 1206 (3216 Metric)
• Mounting type: Surface Mount
• Operating temperature range: -55°C ~ 125°C
• RoHS and REACH compliance status

The TAJA685M006RNJ qualifies as a direct substitute based on matching all critical electrical specifications and package requirements. Variations in ESR (Equivalent Series Resistance) and physical height do not disqualify substitution when the primary functional parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

Both the TAJS685M006RNJ and TAJA685M006RNJ are Active status products manufactured by KYOCERA AVX and meet ROHS3 compliance and REACH unaffected requirements. Selection between these parts should be based on application-specific requirements regarding ESR performance and available board space for component height. The TAJS685M006RNJ offers lower ESR at 2.6 Ohm, while the TAJA685M006RNJ presents a taller profile at 1.80mm maximum seated height compared to 1.20mm. Both parts maintain identical electrical performance in capacitance, voltage rating, tolerance, and operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can TAJA685M006RNJ be used as a direct replacement for TAJS685M006RNJ?

A: Yes. Both parts share identical capacitance (6.8 µF), voltage rating (6.3 V), tolerance (±20%), package type (1206), and operating temperature range (-55°C to 125°C). The difference in ESR and physical height does not affect electrical compatibility for general purpose applications.

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

A: ESR (Equivalent Series Resistance) affects impedance characteristics at high frequencies. The TAJS685M006RNJ has 2.6 Ohm ESR while the TAJA685M006RNJ has 5 Ohm ESR. Applications sensitive to high-frequency ripple current or requiring minimal impedance should specify the lower ESR variant.

Q: Are there physical space constraints to consider?

A: Yes. The TAJS685M006RNJ has a maximum seated height of 0.047" (1.20mm), while the TAJA685M006RNJ measures 0.071" (1.80mm). Verify board layout clearance before substitution if height-constrained applications are involved.

Q: Do both parts meet regulatory requirements?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: What is the difference between the TAJ and TAJA series designations?

A: The series designation reflects internal manufacturer classification. Both TAJ and TAJA series are molded tantalum capacitors from KYOCERA AVX with identical electrical specifications for this 6.8 µF, 6.3 V rating.