T494B226M006AS Equivalent & Substitute Parts Reference

Part Overview

The T494B226M006AS is a 22 µF molded tantalum capacitor manufactured by KEMET, rated for 6.3 V operation in a 1411 (3528 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity. The part operates across the industrial temperature range of -55°C to 125°C with a rated lifetime of 2000 hours at 125°C. Due to its obsolete status and RoHS non-compliant classification, substitute parts with active product status and modern compliance certifications are required for ongoing applications.

Substiute Parts

T494B226M006AS

KEMETIn Stock: 1609T494B226M006AS Datasheet

Current PartRFQ

293D226X96R3B2TE3

Vishay SpragueIn Stock: 2188293D226X96R3B2TE3 Datasheet

SimilarRFQ

TR3B226M6R3C0600

Vishay SpragueIn Stock: 1200TR3B226M6R3C0600 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T494B226M006AS is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Capacitance value: 22 µF (exact match required)
• Rated voltage: 6.3 V (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• Physical dimensions: 3.50 mm L × 2.80 mm W (exact match required)

Important Matching Parameters:

• ESR (Equivalent Series Resistance): 600 mOhm (exact match required for electrical performance equivalence)
• Tolerance: ±20% (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Acceptable Variations:

• Manufacturer identity (different manufacturers permitted)
• Product series designation (different series permitted)
• Packaging format (Tape & Reel acceptable as alternative to bulk)
• Product status (Active status preferred over Obsolete)
• RoHS compliance (ROHS3 Compliant preferred over non-compliant)

The identified substitute parts meet all critical and important matching parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

TR3B226M6R3C0600 (Vishay Sprague TANTAMOUNT™ Series)

This substitute provides direct electrical and mechanical equivalence to the T494B226M006AS. The TR3B226M6R3C0600 maintains identical capacitance (22 µF), voltage rating (6.3 V), tolerance (±20%), ESR (600 mOhm), and package dimensions (1411 / 3528 Metric). The part is classified as Active product status with ROHS3 compliance, eliminating obsolescence and regulatory concerns. Physical height variation (2.11 mm vs. 2.10 mm) is within acceptable PCB assembly tolerances. This part is the preferred direct replacement for applications requiring exact electrical performance matching.

293D226X96R3B2TE3 (Vishay Sprague TANTAMOUNT™ Series)

This substitute provides mechanical and thermal equivalence with improved tolerance specification (±10% vs. ±20%). However, the ESR specification (2 Ohm vs. 600 mOhm) represents a significant electrical deviation. This part is suitable only for applications where lower ESR provides performance benefit or where tolerance tightening is required. The higher ESR value of the original part must not be a functional requirement for circuit operation. This part carries Active product status and ROHS3 compliance.

Both substitute parts are manufactured by Vishay Sprague, a qualified tantalum capacitor supplier, and maintain the same surface mount package footprint and thermal operating range as the original KEMET component.

Frequently Asked Questions (FAQ)

Q: Can the 293D226X96R3B2TE3 be used as a direct replacement for the T494B226M006AS?

A: The 293D226X96R3B2TE3 differs in two parameters: tolerance (±10% vs. ±20%) and ESR (2 Ohm vs. 600 mOhm). While the tighter tolerance is generally acceptable, the significantly higher ESR may affect circuit performance in applications sensitive to impedance characteristics. Electrical circuit analysis is required to confirm compatibility.

Q: Why is the height specification slightly different (2.11 mm vs. 2.10 mm)?

A: The 0.01 mm height difference between substitute parts and the original component is within standard PCB assembly tolerances and does not affect mechanical fit or electrical function in standard surface mount applications.

Q: Are the substitute parts available in the same packaging format as the original?

A: The original T494B226M006AS is supplied in bulk packaging. The identified substitutes (293D226X96R3B2TE3 and TR3B226M6R3C0600) are supplied in Tape & Reel format, which is standard for production environments and offers improved handling and automated assembly compatibility.

Q: What is the significance of the RoHS3 compliance on the substitute parts?

A: ROHS3 compliance indicates conformance to current European Union Restriction of Hazardous Substances regulations. The original T494B226M006AS is RoHS non-compliant, which may restrict its use in new designs or regulated markets. Substitute parts with ROHS3 compliance eliminate this regulatory constraint.

Q: Can both substitute parts be used interchangeably in the same application?

A: The TR3B226M6R3C0600 provides exact electrical equivalence (600 mOhm ESR, ±20% tolerance). The 293D226X96R3B2TE3 introduces electrical differences (2 Ohm ESR, ±10% tolerance). These parts are not interchangeable without circuit-level analysis. Select based on specific circuit requirements for ESR and tolerance specifications.

Q: What is the inventory status of the substitute parts?

A: TR3B226M6R3C0600 has 1090 pieces in stock. 293D226X96R3B2TE3 has 2100 pieces in stock. Both are classified as Active products with ongoing availability.