TAJS685K006RNJ Equivalent & Substitute Parts

Part Overview

The TAJS685K006RNJ 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 ROHS3 compliant. Equivalent and substitute parts are identified when electrical characteristics, mechanical dimensions, and compliance certifications align within specified tolerances, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

TAJS685K006RNJ

KYOCERA AVXIn Stock: 1207TAJS685K006RNJ Datasheet

Current PartRFQ

TAJA685K006RNJ

KYOCERA AVXIn Stock: 1092TAJA685K006RNJ Datasheet

MFR RecommendedRFQ

293D685X96R3A2TE3

Vishay SpragueIn Stock: 2954293D685X96R3A2TE3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAJS685K006RNJ are qualified based on the following criteria:

• Identical capacitance value: 6.8 µF
• Matching tolerance: ±10%
• Equivalent voltage rating: 6.3 V
• Same package designation: 1206 (3216 Metric)
• Surface mount configuration
• Operating temperature range: -55°C ~ 125°C
• Compliance certifications: ROHS3, REACH Unaffected, EAR99

Substitutes may vary in ESR (Equivalent Series Resistance), packaging format (Tape & Reel vs. Cut Tape), and manufacturer size codes, provided all electrical and mechanical parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and are ROHS3 compliant with REACH Unaffected certification. The TAJA685K006RNJ and 293D685X96R3A2TE3 are direct electrical equivalents to the TAJS685K006RNJ, with identical capacitance, tolerance, voltage rating, and operating temperature specifications. Selection between these substitutes depends on packaging requirements and ESR tolerance for the application. The TAJS685K006RNJ features lower ESR (2.6 Ohm) compared to the substitute options (5 Ohm), which may be relevant for high-frequency or low-impedance circuit applications. The TAJA685K006RNJ offers the same KYOCERA AVX manufacturer lineage with alternative packaging (Cut Tape format). The 293D685X96R3A2TE3 from Vishay Sprague provides equivalent performance with established supply availability.

Frequently Asked Questions (FAQ)

Q: Can TAJA685K006RNJ replace TAJS685K006RNJ directly on the PCB?

A: Yes. Both parts share identical electrical specifications (6.8 µF, ±10%, 6.3 V) and mechanical dimensions (1206 package, 3.20mm x 1.60mm). The primary difference is packaging format (Cut Tape vs. Tape & Reel) and height (1.80mm vs. 1.20mm seated height). Verify PCB clearance for the increased height before assembly.

Q: What is the impact of ESR differences between the main part and substitutes?

A: The TAJS685K006RNJ has 2.6 Ohm ESR, while TAJA685K006RNJ and 293D685X96R3A2TE3 have 5 Ohm ESR. Higher ESR increases impedance and heat dissipation at high frequencies. For applications requiring minimal ESR, the main part is preferred. For general-purpose filtering and decoupling, the 5 Ohm alternatives are functionally equivalent.

Q: Are there mechanical compatibility concerns with the substitute parts?

A: The TAJA685K006RNJ and 293D685X96R3A2TE3 have a maximum seated height of 1.80mm, compared to 1.20mm for the TAJS685K006RNJ. Verify PCB layout and component clearance, particularly in space-constrained designs or where conformal coating is applied.

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

A: Yes. All three parts are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99. Moisture Sensitivity Level is 1 (Unlimited) for all variants, indicating no special storage or handling requirements.

Q: Which substitute offers the best supply availability?

A: The 293D685X96R3A2TE3 (Vishay Sprague) shows higher inventory (2914 Pcs) compared to TAJA685K006RNJ (1070 Pcs) and TAJS685K006RNJ (1097 Pcs). For high-volume procurement, the Vishay part may provide supply chain advantages.