Equivalent & Substitute Parts for T491C106M010AT4513

Part Overview

The T491C106M010AT4513 is a 10 µF molded tantalum capacitor manufactured by KEMET, rated for 10 V operation in a 2312 (6032 Metric) surface mount package. This component is classified as Active product status and is designed for general purpose applications requiring stable capacitance performance across the operating temperature range of -55°C to 125°C. Substitute parts are identified to provide alternative sourcing options when the primary KEMET component is unavailable or when supply chain optimization is required.

Substiute Parts

T491C106M010AT4513

KEMETIn Stock: 758T491C106M010AT4513 Datasheet

Current PartRFQ

TCKIA106CT

Cal-Chip Electronics, Inc.In Stock: 64010TCKIA106CT Datasheet

Parametric EquivalentRFQ

TCMIA106CT

Cal-Chip Electronics, Inc.In Stock: 64086TCMIA106CT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T491C106M010AT4513 are qualified based on the following critical parameters that determine functional equivalence:

Mandatory Matching Parameters:

• Capacitance: 10 µF (exact match required)
• Voltage Rating: 10 V (exact match required)
• Package / Case: 2312 (6032 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Molded Tantalum (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Lifetime @ Temp.: 2000 Hrs @ 125°C (exact match required)

Allowable Variation Parameters:

• Tolerance: ±20% (main part) to ±10% (substitute acceptable; tighter tolerance is compatible)
• ESR (Equivalent Series Resistance): 1.8 Ohm (main part) to 2.5 Ohm (substitute acceptable; higher ESR within general purpose application limits)
• Manufacturer: KEMET to Cal-Chip Electronics, Inc. (both manufacturers produce equivalent molded tantalum capacitors)

The two identified substitute parts (TCKIA106CT and TCMIA106CT) from Cal-Chip Electronics, Inc. meet all mandatory parameters and fall within allowable variations for tolerance and ESR.

Parameter Comparison

Engineering Selection Recommendations

TCMIA106CT (Cal-Chip Electronics, Inc.) is the primary substitute for T491C106M010AT4513. This part maintains identical tolerance specification (±20%) and all critical electrical and mechanical parameters. Both components are Active product status, RoHS compliant, and REACH unaffected. The ESR difference of 0.7 Ohm (2.5 Ohm versus 1.8 Ohm) is within acceptable limits for general purpose tantalum capacitor applications.

TCKIA106CT (Cal-Chip Electronics, Inc.) is a secondary substitute option. This part offers tighter tolerance specification (±10% versus ±20%), which provides improved capacitance accuracy. All other parameters remain equivalent to the primary part. The tighter tolerance makes this part suitable for applications requiring higher precision capacitance values.

Both substitute parts are manufactured by Cal-Chip Electronics, Inc., an established producer of molded tantalum capacitors. Selection between TCMIA106CT and TCKIA106CT depends on tolerance requirements of the specific application circuit.

Frequently Asked Questions (FAQ)

Q: Can TCKIA106CT or TCMIA106CT be used as direct replacements for T491C106M010AT4513 on existing PCBs?

A: Yes. Both substitute parts are qualified for direct replacement. The 2312 (6032 Metric) package dimensions and surface mount footprint are identical. No PCB layout modifications are required.

Q: What is the difference between TCKIA106CT and TCMIA106CT?

A: The primary difference is capacitance tolerance. TCKIA106CT specifies ±10% tolerance, while TCMIA106CT specifies ±20% tolerance. Both parts have identical capacitance value (10 µF), voltage rating (10 V), and ESR (2.5 Ohm). Selection depends on circuit tolerance requirements.

Q: Are there any compliance or regulatory differences between the main part and substitutes?

A: All three parts are RoHS compliant and REACH unaffected. The main part carries ROHS3 compliance designation, while substitute parts carry RoHS compliance designation. Both compliance levels are acceptable for equivalent functionality.

Q: How does the ESR difference affect circuit performance?

A: The main part T491C106M010AT4513 has 1.8 Ohm ESR, while both substitute parts have 2.5 Ohm ESR. This 0.7 Ohm difference is within acceptable limits for general purpose applications. Applications with specific ESR requirements should verify compatibility with circuit design specifications.

Q: What is the moisture sensitivity level for these parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply.

Q: Are all parts available in Tape & Reel (TR) packaging?

A: Yes. T491C106M010AT4513, TCKIA106CT, and TCMIA106CT are all supplied in Tape & Reel packaging suitable for automated assembly processes.