TAJS474K025RNJ Equivalent & Substitute Parts

Part Overview

The TAJS474K025RNJ is a 0.47 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 25 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 allowed parameter range for this capacitor category.

Substiute Parts

TAJS474K025RNJ

KYOCERA AVXIn Stock: 942TAJS474K025RNJ Datasheet

Current PartRFQ

TAJA474K025RNJ

KYOCERA AVXIn Stock: 2815TAJA474K025RNJ Datasheet

MFR RecommendedRFQ

293D474X9025A2TE3

Vishay SpragueIn Stock: 4356293D474X9025A2TE3 Datasheet

MFR RecommendedRFQ

T491A474K025AT

KEMETIn Stock: 1678T491A474K025AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAJS474K025RNJ are qualified based on the following criteria:

• Identical capacitance value: 0.47 µF
• Identical tolerance: ±10%
• Identical rated voltage: 25 V
• Identical package: 1206 (3216 Metric)
• Identical mounting type: Surface Mount
• Identical operating temperature range: -55°C ~ 125°C
• Identical moisture sensitivity level: MSL 1
• RoHS3 compliance maintained

Variations in ESR (Equivalent Series Resistance) and physical height are within acceptable ranges for this component category and do not preclude substitution. All identified substitutes maintain Active product status and full regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain identical electrical specifications and are qualified for direct substitution in applications requiring 0.47 µF, 25 V, ±10% tolerance tantalum capacitors in 1206 surface mount packages. Selection among the qualified substitutes may be based on:

• Packaging format availability (Tape & Reel vs. Cut Tape & Digi-Reel®)
• Inventory levels and lead time requirements
• ESR performance requirements (293D474X9025A2TE3 offers 12 Ohm ESR vs. 14 Ohm for other options)
• Lifetime rating specifications (T491A474K025AT specifies 2000 Hrs @ 125°C)
• Physical height constraints (TAJS474K025RNJ at 1.20mm vs. 1.80mm for other substitutes)

All parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8532.21.0050.

Frequently Asked Questions (FAQ)

Q: Can TAJA474K025RNJ replace TAJS474K025RNJ directly?

A: Yes. Both are KYOCERA AVX TAJ series capacitors with identical electrical specifications (0.47 µF, 25 V, ±10%). The primary difference is packaging format (Tape & Reel vs. Cut Tape & Digi-Reel®) and physical height (1.20mm vs. 1.80mm). Height difference must be evaluated for PCB layout compatibility.

Q: What is the difference between the 293D474X9025A2TE3 and other substitutes?

A: The 293D474X9025A2TE3 (Vishay Sprague TANTAMOUNT™ series) has lower ESR at 12 Ohm compared to 14 Ohm for KYOCERA AVX and KEMET options. All other electrical and mechanical parameters are equivalent. Lower ESR may provide performance benefits in high-frequency or low-impedance applications.

Q: Are there height restrictions when substituting the TAJS474K025RNJ?

A: The TAJS474K025RNJ has a maximum seated height of 0.047" (1.20mm), while TAJA474K025RNJ, 293D474X9025A2TE3, and T491A474K025AT are all 0.071" (1.80mm). PCB clearance and component placement must accommodate the taller profile of substitute parts.

Q: Does the T491A474K025AT offer any additional specifications?

A: The T491A474K025AT specifies a lifetime rating of 2000 Hrs @ 125°C, providing documented reliability data. This specification is not provided for other substitutes but does not indicate superior performance; it reflects manufacturer documentation practices.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All identified substitutes (TAJA474K025RNJ, 293D474X9025A2TE3, and T491A474K025AT) are RoHS3 compliant, REACH unaffected, and carry identical regulatory classifications.