T496B475K016AS Equivalent & Substitute Parts

Part Overview

The T496B475K016AS is a 4.7 µF molded tantalum capacitor rated for 16 V operation, manufactured by KEMET in the 1411 (3528 Metric) package. This component is classified as obsolete and is no longer in active production. The part features a fail-safe design with built-in fuse protection and operates across a temperature range of -55°C to 125°C. Due to its obsolete status, identifying equivalent substitute parts is necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

T496B475K016AS

KEMETIn Stock: 841T496B475K016AS Datasheet

Current PartRFQ

T496B475K016ATE3K5

KEMETIn Stock: 949T496B475K016ATE3K5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T496B475K016AS is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 4.7 µF (exact match required)
• Voltage Rating: 16 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)

The substitute part T496B475K016ATE3K5 meets all these criteria and is therefore a direct functional equivalent. The primary distinction between the main part and its substitute is the product status (obsolete versus active) and compliance certifications (RoHS non-compliant versus ROHS3 compliant).

Parameter Comparison

Engineering Selection Recommendations

The T496B475K016ATE3K5 is the direct substitute for the obsolete T496B475K016AS. Selection of the substitute part is based on the following engineering considerations:

Product Status: The T496B475K016ATE3K5 maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Compliance Certifications: The substitute part is ROHS3 compliant, meeting current regulatory requirements for electronic components in most markets. The main part is RoHS non-compliant and may face restrictions in new designs or applications subject to RoHS directives.

Electrical and Mechanical Equivalence: Both parts are identical in capacitance, voltage rating, tolerance, package dimensions, and operating temperature range. The substitute provides specified ESR (3.5 Ohm) and lifetime rating (2000 Hrs @ 85°C), offering additional performance documentation.

Packaging Consideration: The substitute is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. The main part is supplied in bulk packaging.

For new designs or production requiring RoHS compliance, the T496B475K016ATE3K5 is the appropriate selection. For legacy applications where the original part is still in use, the substitute provides direct functional replacement with improved compliance status.

Frequently Asked Questions (FAQ)

Q: Can the T496B475K016ATE3K5 be used as a direct replacement for the T496B475K016AS?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical capacitance (4.7 µF), voltage rating (16 V), tolerance (±10%), package dimensions (1411/3528 Metric), and operating temperature range (-55°C to 125°C). The substitute is the recommended choice due to active production status and ROHS3 compliance.

Q: What is the difference between the two part numbers?

A: The primary differences are product status and compliance. The T496B475K016AS is obsolete, while the T496B475K016ATE3K5 is in active production. The substitute includes specified ESR (3.5 Ohm) and lifetime rating (2000 Hrs @ 85°C). The substitute is ROHS3 compliant; the main part is not.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 1411 (3528 Metric) package with dimensions of 0.138" L x 0.110" W (3.50mm x 2.80mm) and maximum seated height of 0.083" (2.10mm). They are pin-compatible and footprint-compatible for PCB assembly.

Q: What is the packaging difference?

A: The main part (T496B475K016AS) is supplied in bulk packaging. The substitute (T496B475K016ATE3K5) is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly processes.

Q: Does the substitute part meet current regulatory requirements?

A: Yes. The T496B475K016ATE3K5 is ROHS3 compliant and REACH unaffected. The main part is RoHS non-compliant and may not be suitable for applications subject to RoHS directives.

Q: Are both parts fail-safe with built-in fuse protection?

A: Yes. Both the T496B475K016AS and T496B475K016ATE3K5 feature fail-safe design with built-in fuse protection.

Q: What is the moisture sensitivity level?

A: Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without special moisture control measures.