T491C336M016AT4021 Equivalent & Substitute Parts

Part Overview

The T491C336M016AT4021 is a 33 µF molded tantalum capacitor manufactured by KEMET, rated for 16 V with ±20% tolerance. This surface mount component operates across the temperature range of -55°C to 125°C with a 2000-hour lifetime rating at 125°C. The part is housed in a 2312 (6032 Metric) package and features a 1.2Ohm equivalent series resistance (ESR). The T491C336M016AT4021 maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameters. Alternative sources and variants with improved tolerance or ESR characteristics are available from both KEMET and Cal-Chip Electronics, Inc.

Substiute Parts

T491C336M016AT4021

KEMETIn Stock: 787T491C336M016AT4021 Datasheet

Current PartRFQ

T495C336K016ATE200

KEMETIn Stock: 2765T495C336K016ATE200 Datasheet

Parametric EquivalentRFQ

TCKIC336CT

Cal-Chip Electronics, Inc.In Stock: 32564TCKIC336CT Datasheet

Parametric EquivalentRFQ

TCKIC336CTLSR300

Cal-Chip Electronics, Inc.In Stock: 25850TCKIC336CTLSR300 Datasheet

Parametric EquivalentRFQ

TCMIC336CT

Cal-Chip Electronics, Inc.In Stock: 7542TCMIC336CT Datasheet

Parametric EquivalentRFQ

TCMIC336CTLSR300

Cal-Chip Electronics, Inc.In Stock: 25854TCMIC336CTLSR300 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T491C336M016AT4021 is determined by strict adherence to the following parameters:

Critical Parameters (Must Match):

• Capacitance: 33 µF
• Voltage - Rated: 16 V
• Package / Case: 2312 (6032 Metric)
• Physical Dimensions: 0.236" L x 0.126" W (6.00mm x 3.20mm)
• Height - Seated (Max): 0.110" (2.80mm)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 125°C
• Lifetime @ Temp.: 2000 Hrs @ 125°C

Variable Parameters (Allowed to Differ):

• Tolerance: ±20% (main part) to ±10% (substitute parts)
• ESR (Equivalent Series Resistance): 1.2Ohm to 300mOhm
• Manufacturer: KEMET or Cal-Chip Electronics, Inc.
• RoHS Status: ROHS3 Compliant or RoHS Compliant

All identified substitute parts maintain identical capacitance, voltage rating, package dimensions, and thermal specifications. Variations in tolerance and ESR represent functional improvements or alternative performance characteristics within the same mechanical and electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

KEMET T495C336K016ATE200 is suitable for applications requiring improved tolerance specification (±10% versus ±20%) while maintaining KEMET manufacturing and ROHS3 compliance. This part features reduced ESR at 200mOhm @ 100kHz, providing enhanced performance in high-frequency applications. Active product status and identical thermal ratings ensure direct compatibility.

Cal-Chip Electronics, Inc. TCKIC336CT provides a tolerance-improved alternative (±10%) with Cal-Chip sourcing. ESR of 1.5Ohm and ROHS3 compliance maintain electrical performance characteristics suitable for general-purpose applications. Active product status confirms ongoing availability.

Cal-Chip Electronics, Inc. TCKIC336CTLSR300 offers tolerance improvement (±10%) with significantly reduced ESR at 300mOhm. RoHS compliance (non-ROHS3 variant) is maintained. This configuration addresses applications sensitive to ESR performance.

Cal-Chip Electronics, Inc. TCMIC336CT matches the original tolerance specification (±20%) while providing Cal-Chip sourcing. ESR of 1.5Ohm and ROHS3 compliance support direct substitution in tolerance-matched applications. Active product status ensures availability.

Cal-Chip Electronics, Inc. TCMIC336CTLSR300 maintains tolerance matching (±20%) with reduced ESR at 300mOhm. RoHS compliance is provided. This variant addresses ESR-sensitive applications within the original tolerance band.

All substitute parts maintain identical package dimensions, voltage rating, capacitance value, and operating temperature specifications. Selection between alternatives depends on tolerance requirements, ESR performance needs, and manufacturer sourcing preferences.

Frequently Asked Questions (FAQ)

Q: Can T495C336K016ATE200 replace T491C336M016AT4021 in all applications?

A: T495C336K016ATE200 is electrically compatible as a direct substitute. Both parts share identical capacitance (33 µF), voltage rating (16 V), package dimensions (2312/6032 Metric), and operating temperature range (-55°C to 125°C). The primary difference is improved tolerance (±10% versus ±20%) and reduced ESR (200mOhm @ 100kHz versus 1.2Ohm). Applications requiring the original ±20% tolerance specification should confirm tolerance acceptance before substitution.

Q: What is the difference between ROHS3 Compliant and RoHS Compliant variants?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 Compliant represents the current standard. RoHS Compliant variants from Cal-Chip Electronics, Inc. (TCKIC336CTLSR300 and TCMIC336CTLSR300) maintain regulatory compliance. Selection between these variants depends on specific procurement requirements and regulatory documentation needs.

Q: Are Cal-Chip Electronics, Inc. parts mechanically compatible with KEMET packaging?

A: Yes. All substitute parts from Cal-Chip Electronics, Inc. share identical package specifications (2312/6032 Metric), physical dimensions (0.236" L x 0.126" W / 6.00mm x 3.20mm), and maximum seated height (0.110" / 2.80mm). Surface mount compatibility is maintained across all variants.

Q: Which substitute part has the lowest ESR?

A: T495C336K016ATE200 features the lowest ESR at 200mOhm @ 100kHz. TCKIC336CTLSR300 and TCMIC336CTLSR300 provide 300mOhm ESR. TCKIC336CT and TCMIC336CT feature 1.5Ohm ESR. Original T491C336M016AT4021 specifies 1.2Ohm ESR. ESR selection depends on application frequency response and ripple current requirements.

Q: Can I use a ±10% tolerance part in place of a ±20% tolerance specification?

A: Yes. A ±10% tolerance part (T495C336K016ATE200, TCKIC336CT, or TCKIC336CTLSR300) provides tighter capacitance control than the original ±20% specification. This represents an improvement in tolerance performance and is suitable for applications where the original ±20% tolerance was acceptable.

Q: Are all substitute parts rated for the same temperature range?

A: Yes. All substitute parts operate across -55°C to 125°C with 2000-hour lifetime rating at 125°C, matching the original T491C336M016AT4021 specifications.

Q: What is the significance of the "LSR300" designation in part numbers?

A: The "LSR300" designation indicates Low Series Resistance at 300mOhm. This specification differentiates these variants (TCKIC336CTLSR300 and TCMIC336CTLSR300) from standard ESR configurations and addresses applications requiring reduced impedance characteristics.