T491E107M020AT Equivalent & Substitute Parts

Part Overview

The T491E107M020AT is a 100 µF molded tantalum capacitor manufactured by KEMET, rated for 20 V operation with ±20% capacitance tolerance. This component is designed for surface mount applications in the 2924 (7360 Metric) package format. The part is currently in active production status with 862 units available in inventory.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining mechanical compatibility and compliance certifications. Alternative models may be required due to inventory availability, lead time considerations, or specific application performance requirements.

Substiute Parts

T491E107M020AT

KEMETIn Stock: 913T491E107M020AT Datasheet

Current PartRFQ

T495E107M020ATE085

KEMETIn Stock: 880T495E107M020ATE085 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T491E107M020AT is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 100 µF (exact match required)
• Voltage Rating: 20 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2924 (7360 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)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)
• MSL Rating: 1 (Unlimited) (exact match required)

The T495E107M020ATE085 qualifies as a parametric equivalent substitute. Both components share identical capacitance, voltage rating, tolerance, package dimensions, mounting configuration, and environmental specifications. The primary technical difference is the Equivalent Series Resistance (ESR) specification: the T491E series specifies 500 mOhm, while the T495E series specifies 85 mOhm @ 100 kHz. This lower ESR in the substitute part represents improved performance characteristics within the same physical and electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the T491E107M020AT and T495E107M020ATE085 are active production components manufactured by KEMET with full ROHS3 compliance and unlimited moisture sensitivity level ratings. Selection between these parts should be based on the following criteria:

T491E107M020AT Selection:

• Standard ESR specification of 500 mOhm is acceptable for the application
• Primary inventory availability: 862 units in stock
• Established baseline performance requirements

T495E107M020ATE085 Selection:

• Lower ESR specification (85 mOhm @ 100 kHz) provides reduced impedance characteristics
• Applications requiring improved high-frequency performance
• Secondary inventory availability: 796 units in stock
• Both components maintain identical mechanical compatibility and compliance certifications

Both parts are suitable for direct substitution in surface mount PCB applications requiring 100 µF capacitance at 20 V with ±20% tolerance in the 2924 package format.

Frequently Asked Questions (FAQ)

Q: Can T495E107M020ATE085 be used as a direct replacement for T491E107M020AT?

A: Yes. Both components share identical capacitance (100 µF), voltage rating (20 V), tolerance (±20%), package dimensions (2924 / 7360 Metric), mounting type (surface mount), and environmental specifications (-55°C to 125°C). The T495E series features lower ESR (85 mOhm @ 100 kHz versus 500 mOhm), which represents improved performance within the same physical footprint.

Q: Are there any PCB layout considerations when substituting between these parts?

A: No. Both components use identical package dimensions (0.287" L x 0.236" W / 7.30mm x 6.00mm) and maximum seated height (0.150" / 3.80mm). PCB footprints, land patterns, and assembly processes remain unchanged.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both T491E107M020AT and T495E107M020ATE085 are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity). Both are classified under ECCN EAR99 and HTSUS 8532.21.0050.

Q: What is the difference in ESR between these two parts?

A: The T491E series specifies 500 mOhm ESR, while the T495E series specifies 85 mOhm @ 100 kHz. The lower ESR in the T495E part results in reduced impedance at high frequencies, which may benefit applications with stringent ripple current or transient response requirements.

Q: Are both parts available in the same packaging format?

A: Yes. Both components are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: What is the operating temperature range for both parts?

A: Both components operate across -55°C to 125°C with a rated lifetime of 2000 hours at 125°C.