T494D227M006AT Equivalent & Substitute Parts

Part Overview

The T494D227M006AT is a 220 µF molded tantalum capacitor manufactured by KEMET, rated for 6.3 V operation in a 2917 (7343 Metric) surface mount package. This component is classified as Active product status and is designed for general purpose applications requiring stable capacitance and low equivalent series resistance in compact form factors. Substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance) and mechanical compatibility (package, case size, mounting type) to ensure direct functional replacement in circuit designs.

Substiute Parts

T494D227M006AT

KEMETIn Stock: 970T494D227M006AT Datasheet

Current PartRFQ

T520D227M006ATE018

KEMETIn Stock: 3141T520D227M006ATE018 Datasheet

SimilarRFQ

593D227X06R3D2TE3

Vishay SpragueIn Stock: 7442593D227X06R3D2TE3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T494D227M006AT are qualified based on the following criteria:

Electrical Compatibility:

• Capacitance value: 220 µF (exact match required)
• Voltage rating: 6.3 V (exact match required)
• Tolerance: ±20% (exact match required)

Mechanical Compatibility:

• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical dimensions: 0.287" L x 0.169" W, Height 0.122" max (exact match required)

Regulatory Compliance:

• RoHS3 Compliant status (required for substitution)
• REACH Unaffected status (required for substitution)

Substitute parts may vary in ESR (Equivalent Series Resistance), operating temperature range, lifetime ratings, and moisture sensitivity level, provided all electrical and mechanical parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

All three parts—T494D227M006AT, T520D227M006ATE018, and 593D227X06R3D2TE3—meet the core electrical and mechanical substitution criteria. Selection between these parts is determined by application-specific requirements:

T494D227M006AT (KEMET): Primary specification. ESR of 150 mOhm. Operating temperature range -55°C to 125°C. Moisture sensitivity level 1 (unlimited). Lifetime rating 2000 hours at 125°C. ROHS3 compliant.

T520D227M006ATE018 (KEMET KO-CAP® T520 Polymer): Lower ESR of 18 mOhm at 100kHz, beneficial for high-frequency applications. Operating temperature range -55°C to 105°C (reduced upper limit). Moisture sensitivity level 3 (168 hours). Lifetime rating 2000 hours at 105°C. ROHS3 compliant.

593D227X06R3D2TE3 (Vishay Sprague TANTAMOUNT™): ESR of 100 mOhm. Operating temperature range -55°C to 125°C. Moisture sensitivity level 1 (unlimited). Lifetime rating not specified. ROHS3 compliant.

All parts are Active product status and REACH Unaffected. Selection should account for thermal environment, ESR requirements, and moisture handling protocols specific to the application.

Frequently Asked Questions (FAQ)

Q: Can T520D227M006ATE018 replace T494D227M006AT in all applications?

A: T520D227M006ATE018 is electrically and mechanically compatible. However, the operating temperature upper limit is 105°C versus 125°C for the main part. Applications operating above 105°C require the main part or 593D227X06R3D2TE3. Additionally, moisture sensitivity level 3 requires controlled storage (168 hours maximum before reflow).

Q: What is the significance of ESR differences between these parts?

A: ESR values are 150 mOhm (T494D227M006AT), 18 mOhm (T520D227M006ATE018), and 100 mOhm (593D227X06R3D2TE3). Lower ESR reduces heat generation and improves high-frequency performance. Selection depends on circuit ripple current and frequency requirements.

Q: Are all three parts suitable for moisture-sensitive environments?

A: T494D227M006AT and 593D227X06R3D2TE3 have MSL 1 (unlimited moisture sensitivity). T520D227M006ATE018 has MSL 3, requiring storage in dry conditions and reflow within 168 hours of package opening.

Q: Do these parts have identical physical footprints?

A: Yes. All three parts use the 2917 (7343 Metric) package with identical dimensions: 0.287" L x 0.169" W (7.30mm x 4.30mm) and maximum height 0.122" (3.10mm). PCB layout and assembly tooling are interchangeable.

Q: Which part should be selected for long-term reliability at elevated temperatures?

A: T494D227M006AT and 593D227X06R3D2TE3 both support -55°C to 125°C operation. T494D227M006AT specifies 2000 hours lifetime at 125°C. T520D227M006ATE018 is limited to 105°C maximum.

Q: Are all parts RoHS3 compliant?

A: Yes. T494D227M006AT, T520D227M006ATE018, and 593D227X06R3D2TE3 are all ROHS3 compliant and REACH unaffected.