Equivalent & Substitute Parts for T494C227M006AS

Part Overview

The T494C227M006AS is a 220 µF molded tantalum capacitor manufactured by KEMET, rated at 6.3 V with ±20% tolerance and 300 mOhm equivalent series resistance. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The part is housed in a 2312 (6032 Metric) surface mount package with a maximum seated height of 2.80 mm and operates across a temperature range of -55°C to 125°C with a rated lifetime of 2000 hours at 125°C.

Substiute Parts

T494C227M006AS

KEMETIn Stock: 859T494C227M006AS Datasheet

Current PartRFQ

T494C227M006AT

KEMETIn Stock: 3535T494C227M006AT Datasheet

DirectRFQ

T83C227K6R3EZZL

Vishay SpragueIn Stock: 1823T83C227K6R3EZZL Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T494C227M006AS is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 220 µF (exact match required)
• Voltage Rating: 6.3 V (exact match required)
• Package / Case: 2312 (6032 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• ESR: 300 mOhm (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

Allowable Variation Parameters:

• Tolerance: ±20% or tighter (±10% is acceptable as an upgrade)
• Product Status: Active parts are preferred over obsolete parts
• RoHS Compliance: May differ from original part
• Packaging Format: Tape & Reel (TR) is compatible with original packaging

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

T494C227M006AT (Direct Substitute - KEMET)

The T494C227M006AT is a direct electrical and mechanical equivalent to the T494C227M006AS. Both parts share identical capacitance, voltage rating, tolerance, ESR, package dimensions, and operating temperature specifications. The primary distinction is product status: T494C227M006AT is active and available in higher inventory quantities (3428 units), whereas the original part is obsolete. T494C227M006AT achieves ROHS3 compliance, providing improved environmental and regulatory alignment for new designs. This part is the preferred choice for direct replacement in existing applications requiring no design modification.

T83C227K6R3EZZL (Upgrade Substitute - Vishay Sprague)

The T83C227K6R3EZZL is a cross-manufacturer substitute manufactured by Vishay Sprague under the TANTAMOUNT™ series. This part maintains all critical electrical parameters: 220 µF capacitance, 6.3 V rating, 300 mOhm ESR, and identical package dimensions. The tolerance specification is tighter at ±10% compared to the original ±20%, representing an upgrade in capacitance accuracy. The seated height is 2.79 mm, functionally equivalent to the 2.80 mm maximum of the original part. T83C227K6R3EZZL is active and rated for high reliability applications. This part is suitable for applications where improved tolerance performance is beneficial and cross-manufacturer sourcing is acceptable.

Frequently Asked Questions (FAQ)

Q: Can T494C227M006AT be used as a direct replacement for T494C227M006AS?

A: Yes. T494C227M006AT is electrically and mechanically identical to T494C227M006AS across all critical parameters: 220 µF capacitance, 6.3 V rating, ±20% tolerance, 300 mOhm ESR, 2312 package, and -55°C to 125°C operating range. The primary difference is product status (active versus obsolete) and improved RoHS3 compliance. No circuit redesign is required.

Q: What is the difference between T494C227M006AT and T83C227K6R3EZZL?

A: Both parts are electrically compatible substitutes with identical capacitance, voltage, ESR, and package specifications. The key differences are: (1) Manufacturer: KEMET versus Vishay Sprague; (2) Tolerance: ±20% versus ±10%; (3) Series designation: T494 versus T83 TANTAMOUNT™; (4) RoHS status: ROHS3 compliant versus non-compliant. The T83C227K6R3EZZL offers tighter tolerance performance.

Q: Are the package dimensions identical across all three parts?

A: Yes. All three parts use the 2312 (6032 Metric) surface mount package with dimensions of 6.00 mm length by 3.20 mm width. Maximum seated heights are 2.80 mm (T494C227M006AS and T494C227M006AT) and 2.79 mm (T83C227K6R3EZZL), which are functionally equivalent for PCB assembly and clearance calculations.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. All three parts operate across the identical temperature range of -55°C to 125°C. The original T494C227M006AS and substitute T494C227M006AT both specify 2000 hours lifetime at 125°C. The T83C227K6R3EZZL does not specify lifetime data in the provided parameters but maintains the same operating temperature range.

Q: Which substitute should be selected for new designs?

A: For new designs, T494C227M006AT is recommended as the primary choice due to active product status, higher inventory availability, and ROHS3 compliance. T83C227K6R3EZZL is suitable if tighter tolerance performance (±10%) is a design requirement or if cross-manufacturer sourcing provides supply chain advantages.

Q: Are there any moisture sensitivity considerations?

A: All three parts share identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage practices for surface mount components apply.