T491E227M016AT Equivalent & Substitute Parts

Part Overview

The T491E227M016AT is a 220 µF molded tantalum capacitor manufactured by KEMET, rated for 16 V operation in a 2924 (7360 Metric) surface mount package. This component is classified as Active product status and is designed for general purpose applications requiring stable capacitance and reliable performance across industrial temperature ranges. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this product category, enabling design flexibility and supply chain continuity.

Substiute Parts

T491E227M016AT

KEMETIn Stock: 734T491E227M016AT Datasheet

Current PartRFQ

T495E227M016ATE050

KEMETIn Stock: 2269T495E227M016ATE050 Datasheet

Parametric EquivalentRFQ

T495E227M016ATE075

KEMETIn Stock: 1486T495E227M016ATE075 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T491E227M016AT are identified based on strict equivalence of the following parameters:

Mandatory Matching Parameters:

• Capacitance: 220 µF
• Tolerance: ±20%
• Voltage - Rated: 16 V
• Type: Molded Tantalum
• Package / Case: 2924 (7360 Metric)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 125°C
• Lifetime @ Temp.: 2000 Hrs @ 125°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameter (Allowed Variation):

• ESR (Equivalent Series Resistance): The substitute parts operate with different ESR specifications (50 mOhm @ 100kHz and 75 mOhm @ 100kHz) compared to the main part (900 mOhm). These variations remain within the allowed electrical performance envelope for this product category and do not affect the core functional equivalence.

Both substitute parts are manufactured by KEMET and maintain Active product status, ensuring continued availability and support.

Parameter Comparison

Engineering Selection Recommendations

All three parts—T491E227M016AT, T495E227M016ATE050, and T495E227M016ATE075—maintain Active product status from KEMET and are ROHS3 Compliant with REACH Unaffected designation. Selection between these parts is determined by ESR requirements specific to the application circuit.

The T491E227M016AT operates at 900 mOhm ESR and is suitable for general purpose applications where moderate ESR performance is acceptable.

The T495E227M016ATE050 and T495E227M016ATE075 operate at 50 mOhm @ 100kHz and 75 mOhm @ 100kHz respectively, representing the T495 series with enhanced low-ESR characteristics. These parts are suitable for applications requiring reduced equivalent series resistance.

All parts share identical capacitance, voltage rating, package dimensions, temperature range, and lifetime specifications, ensuring mechanical and thermal compatibility in surface mount PCB designs.

Frequently Asked Questions (FAQ)

Q: Can T495E227M016ATE050 or T495E227M016ATE075 be used as direct replacements for T491E227M016AT?

A: Yes. Both substitute parts maintain identical capacitance (220 µF), voltage rating (16 V), tolerance (±20%), package (2924), mounting type (surface mount), operating temperature range (-55°C ~ 125°C), and lifetime specifications (2000 Hrs @ 125°C). The primary difference is ESR performance, which is lower in the T495 series. Mechanical and electrical compatibility is maintained.

Q: What is the difference between the two T495 substitute parts?

A: T495E227M016ATE050 operates at 50 mOhm @ 100kHz ESR, while T495E227M016ATE075 operates at 75 mOhm @ 100kHz ESR. Both are equivalent substitutes; selection depends on the specific ESR requirement of the application circuit.

Q: Are all three parts RoHS compliant?

A: Yes. T491E227M016AT, T495E227M016ATE050, and T495E227M016ATE075 are all ROHS3 Compliant and REACH Unaffected.

Q: Do the substitute parts have the same physical dimensions?

A: Yes. All three parts use the 2924 (7360 Metric) package with identical dimensions: 0.287" L x 0.236" W (7.30mm x 6.00mm) and maximum seated height of 0.150" (3.80mm).

Q: What is the Moisture Sensitivity Level for these parts?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are these parts suitable for high-temperature applications?

A: Yes. All three parts operate across the temperature range -55°C ~ 125°C with a lifetime specification of 2000 Hrs @ 125°C, supporting industrial and extended temperature applications.