T496D475M035AS Equivalent & Substitute Parts

Part Overview

The T496D475M035AS is a 4.7 µF molded tantalum capacitor rated at 35 V, manufactured by KEMET in the 2917 (7343 Metric) package size. 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 identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

T496D475M035AS

KEMETIn Stock: 1118T496D475M035AS Datasheet

Current PartRFQ

T496D475M035ATE1K5

KEMETIn Stock: 926T496D475M035ATE1K5 Datasheet

DirectRFQ

T496D475K035ATE1K5

KEMETIn Stock: 676T496D475K035ATE1K5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T496D475M035AS is determined by strict equivalence in the following parameters:

Critical Matching Parameters:

• Capacitance: 4.7 µF (exact match required)
• Voltage Rating: 35 V (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Type: Molded Tantalum (exact match required)

Allowable Variations:

• Tolerance: ±20% (main part) to ±10% (substitute) — tighter tolerance is acceptable
• ESR (Equivalent Series Resistance): Specified in active substitutes (1.5Ohm) but not specified in obsolete main part
• Product Status: Obsolete (main part) to Active (substitutes)
• RoHS Status: Non-compliant (main part) to ROHS3 Compliant (substitutes)
• Packaging Format: Bulk to Tape & Reel (TR)

Two substitute parts are identified: T496D475M035ATE1K5 (direct equivalent with ±20% tolerance) and T496D475K035ATE1K5 (parametric equivalent with ±10% tolerance).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Tolerance-Matched): Select T496D475M035ATE1K5 when the original design specification requires ±20% capacitance tolerance. This part maintains identical tolerance characteristics to the obsolete T496D475M035AS while offering active product status and ROHS3 compliance. The part is available in Tape & Reel packaging format suitable for automated assembly processes.

For Enhanced Performance (Tighter Tolerance): Select T496D475K035ATE1K5 when design margins permit tighter capacitance tolerance of ±10%. This part provides improved tolerance control over the original specification while maintaining all other electrical and mechanical parameters. ROHS3 compliance and active product status make this option suitable for new designs and long-term production continuity.

Both substitute parts provide specified ESR of 1.5Ohm and documented lifetime rating of 2000 hours at 85°C, offering improved reliability data compared to the obsolete main part. Selection between the two substitutes depends solely on tolerance requirements of the application circuit.

Frequently Asked Questions (FAQ)

Q: Can T496D475M035ATE1K5 be used as a direct replacement for T496D475M035AS?

A: Yes. T496D475M035ATE1K5 is a direct substitute maintaining identical capacitance (4.7 µF), voltage rating (35 V), tolerance (±20%), package (2917), and operating temperature range (-55°C to 125°C). The primary differences are product status (Active vs. Obsolete) and compliance certifications (ROHS3 Compliant vs. Non-compliant).

Q: What is the difference between T496D475M035ATE1K5 and T496D475K035ATE1K5?

A: The two parts differ only in capacitance tolerance. T496D475M035ATE1K5 specifies ±20% tolerance (matching the original part), while T496D475K035ATE1K5 specifies ±10% tolerance. All other parameters including capacitance value, voltage rating, package, and operating temperature are identical. Selection depends on circuit tolerance requirements.

Q: Are the substitute parts pin-compatible with the original T496D475M035AS?

A: Yes. Both substitute parts use the identical 2917 (7343 Metric) surface mount package with matching dimensions (0.287" L x 0.169" W, 7.30mm x 4.30mm) and maximum seated height (0.122" / 3.10mm). PCB footprints and assembly processes require no modification.

Q: What is the packaging difference between the main part and substitutes?

A: The obsolete T496D475M035AS is supplied in bulk packaging. The active substitutes T496D475M035ATE1K5 and T496D475K035ATE1K5 are supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly. Tape & Reel packaging is compatible with pick-and-place equipment and does not affect electrical performance.

Q: Do the substitute parts meet RoHS requirements?

A: Yes. Both T496D475M035ATE1K5 and T496D475K035ATE1K5 are ROHS3 Compliant, whereas the original T496D475M035AS is RoHS non-compliant. This compliance improvement makes the substitutes suitable for applications with RoHS regulatory requirements.

Q: What ESR values should be expected?

A: The substitute parts specify ESR of 1.5Ohm at rated conditions. The original obsolete part does not provide ESR specification. The 1.5Ohm ESR value is consistent with KEMET T496 series molded tantalum capacitor specifications for this capacitance and voltage rating.

Q: Are there any temperature or reliability differences?

A: Operating temperature range is identical (-55°C to 125°C) for all three parts. The substitute parts provide documented lifetime rating of 2000 hours at 85°C, whereas the original part does not specify lifetime data. Both substitutes maintain Moisture Sensitivity Level 1 (Unlimited) and fail-safe design with built-in fuse protection.