TAJS474M025RNJ Equivalent & Substitute Parts

Part Overview

The TAJS474M025RNJ 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 same package footprint and rated voltage.

Substiute Parts

TAJS474M025RNJ

KYOCERA AVXIn Stock: 1171TAJS474M025RNJ Datasheet

Current PartRFQ

TAJA474M025RNJ

KYOCERA AVXIn Stock: 1674TAJA474M025RNJ Datasheet

MFR RecommendedRFQ

293D474X0025A2TE3

Vishay SpragueIn Stock: 6146293D474X0025A2TE3 Datasheet

MFR RecommendedRFQ

T491A474M025AT

KEMETIn Stock: 10176T491A474M025AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAJS474M025RNJ are qualified based on the following criteria:

• Capacitance value: 0.47 µF
• Tolerance: ±20%
• Rated voltage: 25 V
• Package / Case: 1206 (3216 Metric)
• Mounting type: Surface Mount
• Operating temperature range: -55°C ~ 125°C
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

All identified substitutes maintain these electrical and mechanical parameters. Variations in ESR (Equivalent Series Resistance) and physical height are within acceptable ranges for this product category and do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. The TAJA474M025RNJ is a direct KYOCERA AVX alternative within the same TAJ series. The 293D474X0025A2TE3 (Vishay Sprague) and T491A474M025AT (KEMET) are cross-manufacturer equivalents that satisfy all electrical and mechanical requirements.

Physical height differences between the main part (1.20mm) and substitute parts (1.80mm) must be evaluated against PCB layout constraints. ESR variations (12–14 Ohm) are within acceptable tolerances for general-purpose applications. The T491A474M025AT includes a specified lifetime rating of 2000 hours at 125°C, providing additional reliability data for mission-critical applications.

Frequently Asked Questions (FAQ)

Q: Can TAJA474M025RNJ be used as a direct replacement for TAJS474M025RNJ?

A: Yes. Both parts are manufactured by KYOCERA AVX within the TAJ series, share identical electrical specifications (0.47 µF, ±20%, 25 V), and are packaged in 1206 (3216 Metric). The primary difference is seated height (1.80mm vs. 1.20mm), which must be verified against PCB clearance requirements.

Q: What is the significance of ESR differences among substitute parts?

A: ESR values range from 12 to 14 Ohm across all listed parts. These variations are within the acceptable range for molded tantalum capacitors in this voltage and capacitance class and do not affect functional interchangeability in standard circuit applications.

Q: Are all substitute parts suitable for high-temperature operation?

A: All parts operate across the -55°C to 125°C temperature range. The T491A474M025AT provides explicit lifetime data (2000 hours at 125°C), which may be relevant for applications requiring extended operation at elevated temperatures.

Q: What packaging formats are available for these substitute parts?

A: TAJA474M025RNJ and T491A474M025AT are supplied in Tape & Reel (TR) format. The 293D474X0025A2TE3 is available in Cut Tape (CT) and Digi-Reel® format. Packaging selection depends on assembly process requirements and order quantities.

Q: Are moisture sensitivity considerations identical across all parts?

A: Yes. All parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.