Equivalent & Substitute Parts for T495X477K006ASE065

Part Overview

The T495X477K006ASE065 is a 470 µF molded tantalum capacitor manufactured by KEMET, rated for 6.3 V operation in a 2917 (7343 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for direct board-level substitution.

Substiute Parts

T495X477K006ASE065

KEMETIn Stock: 930T495X477K006ASE065 Datasheet

Current PartRFQ

TAJD477K006H

KYOCERA AVXIn Stock: 1003TAJD477K006H Datasheet

SimilarRFQ

TR3E477K6R3C0060

Vishay SpragueIn Stock: 971TR3E477K6R3C0060 Datasheet

SimilarRFQ

TR3E477K6R3C0065

Vishay SpragueIn Stock: 1550TR3E477K6R3C0065 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T495X477K006ASE065 is determined by strict equivalence across the following parameters:

Critical Parameters (Must Match Exactly):

• Capacitance: 470 µF
• Tolerance: ±10%
• Voltage Rating: 6.3 V
• Package / Case: 2917 (7343 Metric)
• Type: Molded Tantalum
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 125°C
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• ESR (Equivalent Series Resistance): Substitutes with ESR values of 60 mOhm, 65 mOhm, or 400 mOhm are acceptable. Lower ESR values (60 mOhm) provide improved performance characteristics; higher ESR values (400 mOhm) remain functionally compatible within the specified electrical envelope.
• Physical Height: Seated height variations within the 2917 package specification are acceptable (3.10 mm to 4.32 mm).
• Product Status: Active alternatives are preferred over obsolete components for long-term supply assurance.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: TR3E477K6R3C0065 (Vishay Sprague)

The TR3E477K6R3C0065 provides direct electrical and mechanical equivalence to the T495X477K006ASE065. This part maintains identical capacitance, voltage rating, tolerance, and ESR specification (65 mOhm). The component is active in production, ROHS3 compliant, and available in Tape & Reel packaging. Inventory availability is 1477 pieces.

Secondary Recommendation: TR3E477K6R3C0060 (Vishay Sprague)

The TR3E477K6R3C0060 offers superior performance through reduced ESR (60 mOhm versus 65 mOhm), resulting in lower impedance and improved transient response. This part is active, ROHS3 compliant, and suitable for applications where lower ESR provides measurable benefit. Inventory availability is 950 pieces.

Alternative: TAJD477K006H (KYOCERA AVX)

The TAJD477K006H maintains full electrical compatibility but features elevated ESR (400 mOhm). This part is active and available (925 pieces). Selection of this alternative is appropriate only when ESR elevation does not compromise circuit performance. The reduced seated height (3.10 mm) may provide board layout advantages in space-constrained applications.

Compliance Consideration:

The original T495X477K006ASE065 is RoHS non-compliant. Both Vishay Sprague alternatives (TR3E477K6R3C0060 and TR3E477K6R3C0065) are ROHS3 compliant, supporting transition to current regulatory requirements. The KYOCERA AVX alternative (TAJD477K006H) remains RoHS non-compliant.

Frequently Asked Questions (FAQ)

Q: Can TR3E477K6R3C0060 and TR3E477K6R3C0065 be used interchangeably with T495X477K006ASE065?

A: Yes. Both Vishay Sprague parts are direct substitutes. The 60 mOhm ESR variant (TR3E477K6R3C0060) provides lower impedance; the 65 mOhm variant (TR3E477K6R3C0065) matches the original ESR specification exactly. Both maintain identical capacitance, voltage rating, tolerance, package dimensions, and operating temperature range.

Q: What is the significance of ESR variation between 60 mOhm, 65 mOhm, and 400 mOhm?

A: ESR (Equivalent Series Resistance) affects impedance and ripple current handling. Lower ESR (60 mOhm) reduces voltage drop and heat generation under transient conditions. The 65 mOhm specification matches the original part. The 400 mOhm variant (TAJD477K006H) is acceptable for general-purpose applications but may exhibit higher impedance in high-frequency or high-current scenarios.

Q: Are there physical compatibility concerns with the 2917 package?

A: No. All substitute parts use the 2917 (7343 Metric) package. Seated height variations (3.10 mm to 4.32 mm) remain within standard package tolerances and do not affect PCB footprint compatibility or reflow soldering processes.

Q: Why is RoHS compliance relevant for this substitution?

A: The original T495X477K006ASE065 is RoHS non-compliant. Vishay Sprague alternatives are ROHS3 compliant, supporting compliance with current environmental and regulatory standards. This is significant for new designs or products subject to RoHS requirements.

Q: Can TAJD477K006H be used as a direct replacement despite higher ESR?

A: TAJD477K006H is electrically compatible and maintains all critical parameters (capacitance, voltage, tolerance, package, temperature range). The 400 mOhm ESR is higher than the original 65 mOhm specification. Selection depends on circuit requirements; applications sensitive to impedance should use the 60 mOhm or 65 mOhm alternatives.

Q: What is Moisture Sensitivity Level 1, and does it affect handling?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed substitutes share this classification, eliminating any moisture-related compatibility concerns.

Q: Is packaging format (Tape & Reel versus bulk) a substitution factor?

A: Packaging format affects supply chain logistics but not electrical or mechanical compatibility. TR3E477K6R3C0060 and TR3E477K6R3C0065 are supplied in Tape & Reel format, standard for high-volume surface mount assembly. This does not affect board-level performance.