KEMET T496D476M010AS Equivalent & Substitute Parts

Part Overview

The KEMET T496D476M010AS is a 47 µF molded tantalum capacitor rated at 10 V with ±20% tolerance, housed in a 2917 (7343 Metric) surface mount package. This component features a fail-safe design with built-in fuse protection and operates across the temperature range of -55°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

T496D476M010AS

KEMETIn Stock: 1087T496D476M010AS Datasheet

Current PartRFQ

T496D476M010ATE1K0

KEMETIn Stock: 2043T496D476M010ATE1K0 Datasheet

DirectRFQ

T496D476K010ATE1K0

KEMETIn Stock: 875T496D476K010ATE1K0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T496D476M010AS is determined by strict equivalence in the following parameters:

Critical Parameters (Must Match):

• Capacitance: 47 µF
• Voltage Rating: 10 V
• Package / Case: 2917 (7343 Metric)
• Mounting Type: Surface Mount
• Type: Molded Tantalum
• Features: Fail Safe with Built-in Fuse

Allowable Variations:

• Tolerance: ±20% (main part) to ±10% (substitute) — tighter tolerance is acceptable
• ESR: Specified in active substitutes (1 Ohm) versus unspecified in obsolete main part
• Product Status: Obsolete (main part) to Active (substitutes)
• Packaging Format: Bulk to Tape & Reel (TR)
• RoHS Compliance: Non-compliant (main part) to ROHS3 Compliant (substitutes)

Two substitute parts meet these criteria and are grouped as follows:

Group 1 — Direct Functional Equivalent: T496D476M010ATE1K0 maintains identical tolerance (±20%) while providing active product status and improved specifications.

Group 2 — Parametric Equivalent with Enhanced Tolerance: T496D476K010ATE1K0 offers tighter tolerance (±10%) suitable for applications requiring higher capacitance precision.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Functional Equivalence): Select T496D476M010ATE1K0 when the original ±20% tolerance specification must be maintained. This part provides identical electrical performance with active product status, ROHS3 compliance, and specified ESR characteristics. The transition from bulk to Tape & Reel packaging aligns with modern manufacturing standards.

For Enhanced Precision Applications: Select T496D476K010ATE1K0 when circuit design permits or requires tighter capacitance tolerance (±10%). This part is suitable for applications where capacitance accuracy impacts circuit performance. Both active substitutes provide identical physical footprint compatibility and thermal operating range.

Compliance Considerations: Both substitute parts achieve ROHS3 compliance, addressing regulatory requirements absent in the obsolete main part. The specified 2000-hour lifetime rating at 85°C provides quantified reliability data for design validation.

Frequently Asked Questions (FAQ)

Q: Can T496D476M010ATE1K0 be used as a direct drop-in replacement for T496D476M010AS?

A: Yes. Both parts share identical capacitance (47 µF), voltage rating (10 V), tolerance (±20%), package (2917), and physical dimensions. The substitute is a direct functional equivalent with active product status.

Q: What is the difference between T496D476M010ATE1K0 and T496D476K010ATE1K0?

A: The primary difference is tolerance specification. T496D476M010ATE1K0 maintains ±20% tolerance matching the original part. T496D476K010ATE1K0 provides ±10% tolerance for applications requiring higher capacitance precision. Both share identical voltage, package, and physical characteristics.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts use the 2917 (7343 Metric) package with dimensions of 0.287" L x 0.169" W (7.30mm x 4.30mm) and maximum seated height of 0.122" (3.10mm). PCB layout and assembly tooling remain unchanged.

Q: What does the ESR specification mean for these parts?

A: ESR (Equivalent Series Resistance) of 1 Ohm is specified for both active substitutes. This parameter characterizes the internal resistance of the capacitor and affects circuit performance in high-frequency applications. The original part does not specify this value.

Q: Why is the original part classified as obsolete?

A: Product status reflects KEMET's manufacturing and support decisions. Active substitutes T496D476M010ATE1K0 and T496D476K010ATE1K0 provide equivalent or superior specifications with ongoing availability and support.

Q: Are both substitutes RoHS compliant?

A: Yes. Both T496D476M010ATE1K0 and T496D476K010ATE1K0 are ROHS3 compliant, whereas the original T496D476M010AS is non-compliant. This addresses regulatory requirements for new designs and production.

Q: Does packaging format affect electrical performance?

A: No. The transition from bulk to Tape & Reel (TR) packaging does not alter electrical characteristics. TR packaging is standard for automated assembly processes and does not impact component functionality.