T491B475K035AT Equivalent & Substitute Parts

Part Overview

The T491B475K035AT is a 4.7 µF molded tantalum capacitor manufactured by KEMET, rated for 35 V operation with ±10% tolerance. This surface mount component in 1411 (3528 Metric) package is classified as Active product status. Alternative equivalent and substitute parts are identified to address supply chain requirements, packaging preferences, or specific application constraints while maintaining functional compatibility within defined electrical and mechanical parameters.

Substiute Parts

T491B475K035AT

KEMETIn Stock: 1140T491B475K035AT Datasheet

Current PartRFQ

T491B475K010AT

KEMETIn Stock: 7156T491B475K010AT Datasheet

SimilarRFQ

T491B475M010AT

KEMETIn Stock: 2767T491B475M010AT Datasheet

SimilarRFQ

T496B475M010ATE3K5

KEMETIn Stock: 6163T496B475M010ATE3K5 Datasheet

SimilarRFQ

293D475X9035B2TE3

Vishay SpragueIn Stock: 4783293D475X9035B2TE3 Datasheet

DirectRFQ

TAJB475K035RNJ

KYOCERA AVXIn Stock: 17709TAJB475K035RNJ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T491B475K035AT are categorized based on the following substitution criteria:

Direct Equivalents (Same Voltage Rating - 35 V): Parts maintaining 35 V rated voltage, 4.7 µF capacitance, ±10% tolerance, and 1411 package form direct substitutes. These include 293D475X9035B2TE3 (Vishay Sprague) and TAJB475K035RNJ (KYOCERA AVX). Differences in ESR (3.1 Ohm vs. 3 Ohm) and packaging format (Tape & Reel vs. Cut Tape) do not affect electrical compatibility.

Voltage-Reduced Substitutes (10 V Rating): Parts rated at 10 V with identical 4.7 µF capacitance and 1411 package (T491B475K010AT, T491B475M010AT, T496B475M010ATE3K5) are substitutes only when circuit design permits operation at lower voltage ratings. These parts share the same physical footprint and mounting characteristics.

Tolerance Variation: T491B475M010AT and T496B475M010ATE3K5 feature ±20% tolerance versus the ±10% tolerance of the main part. Substitution is valid only when circuit design tolerates the wider capacitance range.

Packaging Format Variation: T496B475M010ATE3K5 is supplied in Tape & Reel (TR) format versus Cut Tape (CT) & Digi-Reel® for the main part. Both formats are compatible with standard surface mount assembly processes.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications): 293D475X9035B2TE3 (Vishay Sprague TANTAMOUNT™ 293D series) and TAJB475K035RNJ (KYOCERA AVX TAJ series) are direct electrical equivalents to T491B475K035AT. Both maintain 35 V rating, 4.7 µF capacitance, ±10% tolerance, and identical physical dimensions. All three parts are ROHS3 Compliant with MSL 1 rating. Selection between these three parts is determined by supplier availability, packaging format preference (Cut Tape vs. Tape & Reel), and inventory status.

For Voltage-Reduced Applications: T491B475K010AT is a KEMET equivalent with reduced 10 V rating and identical ±10% tolerance. This substitution is valid only when circuit operating voltage does not exceed 10 V. ESR increases to 3.5 Ohm.

For Tolerance-Relaxed Applications: T491B475M010AT and T496B475M010ATE3K5 feature ±20% tolerance at 10 V rating. These substitutes are applicable only when circuit design accommodates capacitance variation between 3.76 µF and 5.64 µF. T496B475M010ATE3K5 includes fail-safe fuse feature and is supplied in Tape & Reel format.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and -55°C ~ 125°C operating temperature range, ensuring regulatory and environmental compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can T491B475K010AT replace T491B475K035AT in all applications?

A: No. T491B475K010AT is rated for 10 V maximum, while T491B475K035AT is rated for 35 V. Substitution is valid only when the circuit operates at 10 V or below. Using a lower-voltage-rated capacitor in a higher-voltage circuit creates reliability and safety risks.

Q: What is the difference between 293D475X9035B2TE3 and TAJB475K035RNJ?

A: Both are direct electrical equivalents with 4.7 µF, 35 V, ±10% specifications and identical physical dimensions. The primary differences are manufacturer (Vishay Sprague vs. KYOCERA AVX), packaging format (Tape & Reel vs. Cut Tape), and ESR specification (3.1 Ohm vs. 3.1 Ohm). Selection depends on supplier availability and assembly process requirements.

Q: Can I use T491B475M010AT instead of T491B475K035AT?

A: No. T491B475M010AT differs in three critical parameters: 10 V rating (vs. 35 V), ±20% tolerance (vs. ±10%), and 3.5 Ohm ESR (vs. 3.0 Ohm). This part is suitable only for circuits designed for 10 V operation with relaxed tolerance requirements.

Q: What does the packaging format difference (Cut Tape vs. Tape & Reel) mean?

A: Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) are supply formats for surface mount assembly. Both formats contain identical components and are compatible with standard pick-and-place equipment. Selection is based on assembly line requirements and inventory management preferences.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (T491B475K010AT, T491B475M010AT, T496B475M010ATE3K5, 293D475X9035B2TE3, TAJB475K035RNJ) are ROHS3 Compliant with MSL 1 rating, matching the compliance status of T491B475K035AT.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This applies to all listed parts and simplifies supply chain management.

Q: Can I mix different substitute parts in the same production batch?

A: Yes, provided all parts meet the circuit design requirements. However, mixing parts with different ESR values (3.0 Ohm vs. 3.1 Ohm vs. 3.5 Ohm) may introduce minor variations in circuit performance. Verify ESR impact on your specific application before mixing suppliers.