TAJB475K020SNJ Equivalent & Substitute Parts

Part Overview

The TAJB475K020SNJ is a tantalum capacitor manufactured by KYOCERA AVX, classified as a molded tantalum capacitor with a capacitance of 4.7 µF and rated voltage of 20 V. This component is designed for surface mount applications in the 1411 (3528 Metric) package format. The part maintains Active product status and is fully compliant with ROHS3 and REACH regulations, making it suitable for current production environments. Substitute parts are identified when equivalent electrical characteristics and mechanical compatibility are maintained across the specified parameters.

Substiute Parts

TAJB475K020SNJ

KYOCERA AVXIn Stock: 970TAJB475K020SNJ Datasheet

Current PartRFQ

TAJB475K020RNJ

KYOCERA AVXIn Stock: 4806TAJB475K020RNJ Datasheet

SimilarRFQ

293D475X9020B2TE3

Vishay SpragueIn Stock: 2234293D475X9020B2TE3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAJB475K020SNJ are qualified based on strict equivalence of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Capacitance: 4.7 µF (exact match required)
• Voltage Rating: 20 V (exact match required)
• Tolerance: ±10% (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Type: Molded Tantalum (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variations:

• Manufacturer: Different manufacturers permitted
• Packaging Format: Tape & Reel (TR) and Cut Tape (CT) formats are interchangeable for component procurement
• ESR (Equivalent Series Resistance): Minor variations permitted within industry standards for this capacitance and voltage class
• Physical Dimensions: Height variations within ±0.01" (0.25mm) acceptable due to manufacturing tolerances

The two identified substitutes meet all critical matching parameters and are therefore electrically and mechanically equivalent to the TAJB475K020SNJ.

Parameter Comparison

Engineering Selection Recommendations

Both identified substitute parts are qualified for direct replacement of the TAJB475K020SNJ based on the following engineering criteria:

Electrical Equivalence: All three parts share identical capacitance (4.7 µF), voltage rating (20 V), and tolerance (±10%) specifications. The ESR values for the substitute parts (3.0 Ohm and 2.9 Ohm) fall within acceptable ranges for this capacitor class and do not introduce circuit performance degradation.

Mechanical Compatibility: The substitute parts maintain the same package designation (1411 / 3528 Metric) and surface mount mounting type. Physical dimensions are equivalent, with height variations of 0.01mm between substitutes, which is within standard manufacturing tolerances and does not affect PCB assembly or clearance requirements.

Regulatory Compliance: All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and regulatory requirements. Moisture sensitivity level remains at MSL 1 (Unlimited) across all parts, indicating no special handling or storage requirements.

Product Status: All parts maintain Active product status, confirming ongoing availability and manufacturer support.

Packaging Format Consideration: The main part (TAJB475K020SNJ) is supplied in Tape & Reel format. The substitute TAJB475K020RNJ is available in Cut Tape & Digi-Reel® format, while 293D475X9020B2TE3 is supplied in Tape & Reel format. Packaging format selection depends on procurement and assembly line requirements and does not affect component functionality.

Frequently Asked Questions (FAQ)

Q: Can TAJB475K020RNJ be used as a direct replacement for TAJB475K020SNJ?

A: Yes. Both parts are manufactured by KYOCERA AVX with identical electrical specifications (4.7 µF, 20 V, ±10% tolerance) and mechanical compatibility (1411 package, surface mount). The primary difference is packaging format (Cut Tape vs. Tape & Reel), which does not affect circuit performance.

Q: What is the difference between the two substitute parts?

A: TAJB475K020RNJ is manufactured by KYOCERA AVX with 3.0 Ohm ESR, while 293D475X9020B2TE3 is manufactured by Vishay Sprague with 2.9 Ohm ESR. Both meet all electrical and mechanical requirements. The ESR difference is negligible for general-purpose applications in this capacitance and voltage class.

Q: Are there any height or dimensional differences that could affect PCB assembly?

A: The seated height difference between substitutes is 0.01mm (2.10mm vs. 2.11mm), which is within standard manufacturing tolerances and does not affect PCB clearance or assembly processes.

Q: Do all three parts require the same handling and storage conditions?

A: Yes. All three parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control or baking requirements during storage or handling.

Q: Which substitute should be selected for new designs?

A: Selection between TAJB475K020RNJ and 293D475X9020B2TE3 depends on procurement availability, cost, and supply chain preferences. Both are electrically and mechanically equivalent and maintain identical regulatory compliance status.

Q: Can packaging format be mixed in a single production run?

A: Packaging format (Tape & Reel vs. Cut Tape) affects procurement and assembly line handling but does not affect component functionality. Format selection should be coordinated with procurement and assembly operations based on equipment compatibility and inventory management practices.