TAJS474K050RNJ Equivalent & Substitute Parts

Part Overview

The TAJS474K050RNJ is a 0.47 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 widely used in general-purpose applications requiring stable capacitance and low equivalent series resistance. Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or equivalent electrical and mechanical performance specifications.

Substiute Parts

TAJS474K050RNJ

KYOCERA AVXIn Stock: 1213TAJS474K050RNJ Datasheet

Current PartRFQ

TAJA474K050RNJ

KYOCERA AVXIn Stock: 11739TAJA474K050RNJ Datasheet

MFR RecommendedRFQ

293D474X9050A2TE3

Vishay SpragueIn Stock: 2350293D474X9050A2TE3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAJS474K050RNJ are qualified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

• Capacitance: 0.47 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating: 50 V (exact match required)
• Package: 1206 (3216 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature: -55°C ~ 125°C (exact match required)
• Type: Molded Tantalum (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)
• MSL Rating: 1 (Unlimited) (exact match required)

Secondary Considerations:

• ESR (Equivalent Series Resistance) variation within acceptable operational limits
• Physical height differences within board assembly constraints
• Manufacturer series designation (TAJ, TAJA, 293D)

All identified substitutes meet these criteria and are classified as Active product status.

Parameter Comparison

Engineering Selection Recommendations

TAJA474K050RNJ (KYOCERA AVX): This substitute maintains identical electrical specifications to the main part, including 9.5 Ohm ESR. The primary difference is increased seated height (0.071" vs. 0.047"), which must be evaluated against board assembly clearance requirements. Both parts share KYOCERA AVX manufacturing lineage and identical compliance certifications. This substitute is suitable for applications where height tolerance permits the additional 0.024" (0.60mm) clearance.

293D474X9050A2TE3 (Vishay Sprague): This substitute meets all core electrical and mechanical specifications with a 3 Ohm ESR increase (12 Ohm vs. 9.5 Ohm). The seated height matches the TAJA474K050RNJ variant at 0.071". This part is suitable for applications where the higher ESR is within acceptable operational parameters and board assembly constraints permit the increased height. All compliance certifications remain equivalent.

Both substitutes are Active product status with ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can TAJA474K050RNJ be used as a direct replacement for TAJS474K050RNJ?

A: Yes, with one design consideration. The TAJA474K050RNJ maintains identical electrical specifications (0.47 µF, ±10%, 50 V, 9.5 Ohm ESR) and all compliance ratings. The seated height increases from 0.047" to 0.071", requiring verification of board assembly clearance and component placement constraints.

Q: What is the impact of the 3 Ohm ESR difference in the Vishay 293D474X9050A2TE3?

A: The 293D474X9050A2TE3 operates at 12 Ohm ESR compared to 9.5 Ohm in the original part. This 26% increase affects ripple current handling and thermal performance. Selection depends on circuit requirements for maximum allowable ESR and thermal dissipation characteristics.

Q: Are all three parts interchangeable in the same PCB footprint?

A: All three parts use the 1206 (3216 Metric) package with identical length and width (0.126" x 0.063"). However, seated height differences (0.047" for TAJS vs. 0.071" for both substitutes) may affect board assembly clearance, component stacking, or conformal coating processes. Verify height constraints before substitution.

Q: Do all parts meet the same regulatory and environmental standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, carry MSL 1 (Unlimited) rating, and operate across -55°C to 125°C. Compliance certifications are equivalent across all options.

Q: What inventory considerations apply to these substitutes?

A: TAJS474K050RNJ has 1,181 pieces in stock. TAJA474K050RNJ has 11,634 pieces available. 293D474X9050A2TE3 has 2,305 pieces in stock. Substitute selection may be influenced by supply availability and lead time requirements.