T322A475K006AS Equivalent & Substitute Parts

Part Overview

The T322A475K006AS is a 4.7 µF molded tantalum capacitor manufactured by KEMET, rated for 6 V operation with axial through-hole mounting. This component is classified as Active product status and is designed for general-purpose applications requiring compact, reliable energy storage in electronic circuits. Substitute parts are identified when circuit design requirements necessitate higher voltage ratings, improved electrical characteristics, or enhanced availability while maintaining the same capacitance value and core electrical specifications.

Substiute Parts

T322A475K006AS

KEMETIn Stock: 927T322A475K006AS Datasheet

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T322B475K015AS

KEMETIn Stock: 1406T322B475K015AS Datasheet

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T322B475K020AS

KEMETIn Stock: 1037T322B475K020AS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T322A475K006AS are qualified based on the following criteria:

Maintained Parameters (Required for Substitution):

• Capacitance: 4.7 µF (identical)
• Tolerance: ±10% (identical)
• Type: Molded tantalum (identical)
• Mounting Type: Through Hole (identical)
• Package / Case: Axial (identical)
• Series: T322 (identical family)
• Operating Temperature Range: -55°C ~ 125°C (identical)
• Manufacturer: KEMET (identical)

Variable Parameters (Basis for Substitution):

• Voltage - Rated: Higher voltage ratings (15 V, 20 V) provide increased design margin and circuit protection
• ESR (Equivalent Series Resistance): Lower ESR values improve transient response and reduce heat dissipation
• Physical Dimensions: Larger case sizes accommodate higher voltage ratings within the same series

The T322B475K015AS and T322B475K020AS are direct substitutes that maintain all core electrical and mechanical specifications while offering enhanced voltage performance and reduced ESR characteristics.

Parameter Comparison

Engineering Selection Recommendations

T322A475K006AS (Original Part): Use this part when circuit voltage requirements are limited to 6 V maximum and space constraints require the smallest available case size (0.095" diameter). This part is suitable for low-voltage applications with established design margins.

T322B475K015AS (15 V Rated Substitute): Select this substitute when circuit operating voltage exceeds 6 V but does not exceed 15 V. The 15 V rating provides additional design margin for transient voltage spikes and supply variations. The reduced ESR of 5 Ohm improves performance in applications requiring lower impedance. The larger case size (0.110" diameter) accommodates the higher voltage rating. This part maintains Active product status and identical RoHS compliance classification.

T322B475K020AS (20 V Rated Substitute): Select this substitute for maximum voltage margin and lowest ESR performance within the T322 series. The 20 V rating accommodates the widest range of circuit voltage conditions. The ESR of 4.5 Ohm provides optimal transient response and minimal thermal dissipation. The case size matches the 15 V variant (0.110" diameter). This part maintains Active product status and identical RoHS compliance classification.

All substitute parts are manufactured by KEMET, maintain identical capacitance and tolerance specifications, and operate across the full -55°C to 125°C temperature range. Physical dimension changes are limited to diameter and length increases; lead spacing and mounting compatibility remain consistent with through-hole axial applications.

Frequently Asked Questions (FAQ)

Q: Can T322B475K015AS or T322B475K020AS be used in place of T322A475K006AS?

A: Yes. Both substitute parts maintain identical capacitance (4.7 µF), tolerance (±10%), type (molded tantalum), mounting method (through-hole axial), and operating temperature range (-55°C to 125°C). The higher voltage ratings and lower ESR values of the substitutes are compatible with 6 V circuit applications and provide additional performance margin.

Q: What are the physical dimension differences between the main part and substitutes?

A: The T322A475K006AS measures 0.095" diameter by 0.260" length. Both substitute parts (T322B475K015AS and T322B475K020AS) measure 0.110" diameter by 0.290" length. The increased dimensions accommodate higher voltage ratings. Verify that circuit board layout and component spacing allow for the larger case size before substitution.

Q: How do ESR values differ between these parts?

A: The T322A475K006AS has an ESR of 10 Ohm. The T322B475K015AS reduces this to 5 Ohm, and the T322B475K020AS further reduces it to 4.5 Ohm. Lower ESR values reduce impedance, improve transient response, and decrease heat generation in high-frequency or high-current applications.

Q: Are all three parts manufactured by the same company?

A: Yes. All three parts are manufactured by KEMET and belong to the T322 series of molded tantalum capacitors.

Q: Do the substitute parts have the same compliance status as the original?

A: Yes. All three parts share identical RoHS non-compliance status and REACH Unaffected classification. Compliance requirements should be evaluated at the system level rather than the individual component level.

Q: Which substitute should be selected for a 12 V circuit application?

A: The T322B475K015AS is appropriate for 12 V applications, as its 15 V rating provides adequate margin above the operating voltage. The T322B475K020AS is also suitable and offers additional margin and lower ESR.

Q: Can these parts be used interchangeably on the same circuit board?

A: Physical dimension differences require verification of board layout compatibility. The substitute parts are larger (0.110" diameter versus 0.095" diameter) and may require board redesign or component repositioning. Electrical compatibility is maintained across all three parts for applications operating at or below 6 V.