T496D476M016AS Equivalent & Substitute Parts

Part Overview

The T496D476M016AS is a 47 µF molded tantalum capacitor rated for 16 V operation in a 2917 (7343 Metric) surface mount package manufactured by KEMET. 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. Substitute parts maintain the same capacitance, voltage rating, and physical package while offering improved product status and compliance certifications.

Substiute Parts

T496D476M016AS

KEMETIn Stock: 876T496D476M016AS Datasheet

Current PartRFQ

T496D476M016ATE800

KEMETIn Stock: 1511T496D476M016ATE800 Datasheet

DirectRFQ

T496D476K016AT

KEMETIn Stock: 708T496D476K016AT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T496D476M016AS is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Capacitance: 47 µF (exact match required)
• Voltage Rating: 16 V (exact match required)
• Package / Case: 2917 (7343 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)

Allowable Variation Parameters:

• Tolerance: May be tighter (±10% acceptable for ±20% specification)
• ESR (Equivalent Series Resistance): Specification provided in active alternatives
• Product Status: Active alternatives preferred over obsolete designation
• RoHS Compliance: ROHS3 Compliant alternatives available
• Packaging Format: Tape & Reel (TR) acceptable for surface mount assembly

All substitute parts listed maintain identical physical dimensions (0.287" L x 0.169" W, 7.30mm x 4.30mm) and maximum seated height (0.122" / 3.10mm), ensuring direct mechanical compatibility in existing PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

T496D476M016ATE800 is a direct functional equivalent offering identical electrical and mechanical specifications to the obsolete T496D476M016AS. This substitute maintains the ±20% tolerance specification and provides active product status with ROHS3 compliance. The part is supplied in Tape & Reel (TR) packaging format suitable for automated surface mount assembly. ESR specification of 800 mOhm is documented for this active alternative.

T496D476K016AT provides parametric equivalence with a tighter tolerance specification of ±10%, which exceeds the ±20% tolerance requirement of the original part. This substitute is also active and ROHS3 compliant. The ±10% tolerance makes this part suitable for applications requiring improved capacitance accuracy. ESR specification of 800 mOhm matches the direct equivalent.

Both substitute parts are manufactured by KEMET within the T496 series and share identical physical dimensions, package configuration, and thermal operating range. Selection between the two substitutes depends on tolerance requirements: T496D476M016ATE800 for direct tolerance matching, or T496D476K016AT for applications benefiting from improved capacitance tolerance. Both parts are available in active production status with current inventory levels and ROHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can T496D476M016ATE800 be used as a direct replacement for T496D476M016AS?

A: Yes. T496D476M016ATE800 maintains identical capacitance (47 µF), voltage rating (16 V), tolerance (±20%), package (2917 / 7343 Metric), and operating temperature range (-55°C ~ 125°C). Physical dimensions and mounting type are identical, enabling direct PCB substitution.

Q: What is the difference between T496D476M016ATE800 and T496D476K016AT?

A: The primary difference is tolerance specification. T496D476M016ATE800 maintains ±20% tolerance matching the original part, while T496D476K016AT offers tighter ±10% tolerance. Both parts share identical capacitance, voltage rating, package, ESR (800 mOhm), and operating temperature range. Selection depends on circuit tolerance requirements.

Q: Are the substitute parts physically compatible with existing PCB layouts?

A: Yes. Both substitute 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), matching the original T496D476M016AS exactly.

Q: What is the significance of the ESR specification in the substitute parts?

A: ESR (Equivalent Series Resistance) of 800 mOhm is specified for both active substitute parts. The original obsolete part did not include ESR specification. This parameter characterizes the internal resistance of the capacitor and affects performance in high-frequency applications and ripple current handling.

Q: Why is the original T496D476M016AS classified as obsolete?

A: Product obsolescence indicates the part is no longer in active production. The listed substitute parts (T496D476M016ATE800 and T496D476K016AT) are active alternatives that provide equivalent functionality with current manufacturing support and compliance certifications.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both T496D476M016ATE800 and T496D476K016AT are ROHS3 compliant. The original T496D476M016AS is RoHS non-compliant, making the active substitutes preferable for applications subject to RoHS requirements.

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

A: Both substitute parts are supplied in Tape & Reel (TR) packaging format, standard for automated surface mount assembly processes.

Q: Do the substitute parts maintain the fail-safe design of the original part?

A: Yes. Both substitute parts retain the fail-safe design with built-in fuse protection, matching the feature set of the original T496D476M016AS.

Q: What is the lifetime specification for the substitute parts?

A: Both substitute parts are rated for 2000 hours at 85°C operating temperature. The original part did not include lifetime specification data.