T322E476K015AS Equivalent & Substitute Parts

Part Overview

The T322E476K015AS is a 47 µF molded tantalum capacitor manufactured by KEMET, rated for 15 V operation in an axial through-hole 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 when equivalent electrical performance can be maintained within the allowed parameter ranges for this product category. The primary reason for identifying alternatives is to ensure design flexibility, manage inventory availability, and accommodate voltage margin requirements in circuit applications.

Substiute Parts

T322E476K015AS

KEMETIn Stock: 1171T322E476K015AS Datasheet

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T322E476K020AS

KEMETIn Stock: 907T322E476K020AS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the T322E476K015AS is based on the following allowed parameters:

Capacitance: Must remain 47 µF (no tolerance deviation beyond ±10%)

Tolerance: Must remain ±10%

Type: Must remain Molded tantalum

Mounting Type: Must remain Through Hole

Package / Case: Must remain Axial

Physical Dimensions: Must remain 0.280" Dia x 0.530" L (7.11mm x 13.46mm)

Series: Must remain T322 (KEMET T322 series)

Operating Temperature Range: Must remain -55°C to 125°C

Voltage - Rated: May increase above 15 V (voltage uprating is permitted for backward compatibility)

ESR: May decrease (lower ESR is acceptable as an improvement)

The T322E476K020AS qualifies as a substitute because it maintains all mandatory parameters while providing a higher voltage rating (20 V instead of 15 V) and improved ESR performance (1.2 Ohm instead of 1.3 Ohm).

Parameter Comparison

Engineering Selection Recommendations

Both the T322E476K015AS and T322E476K020AS are Active products from KEMET's T322 series. Selection between these parts is determined by circuit voltage requirements and design margins.

T322E476K015AS is selected when the circuit design specifies a maximum operating voltage of 15 V and component cost is the primary consideration.

T322E476K020AS is selected when the circuit design permits or requires a higher voltage rating (20 V). This part provides improved voltage margin and lower ESR, making it suitable for applications requiring enhanced reliability or reduced ripple current effects. Both parts maintain identical physical dimensions, capacitance, tolerance, and temperature operating range, ensuring direct mechanical and electrical compatibility within their respective voltage specifications.

Compliance status is identical for both parts: RoHS non-compliant, REACH Unaffected, ECCN EAR99, HTSUS 8532.21.0040.

Frequently Asked Questions (FAQ)

Q: Can T322E476K020AS replace T322E476K015AS in all applications?

A: T322E476K020AS can replace T322E476K015AS in applications where the circuit voltage does not exceed 20 V. The higher voltage rating of the substitute part does not degrade performance in lower-voltage circuits. Verify that your circuit design voltage specification does not exceed 20 V.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical dimensions: 0.280" Dia x 0.530" L (7.11mm x 13.46mm). They are mechanically interchangeable in through-hole PCB layouts.

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

A: T322E476K015AS has an ESR of 1.3 Ohm, while T322E476K020AS has an ESR of 1.2 Ohm. The lower ESR of the substitute part results in reduced ripple current dissipation and improved high-frequency performance.

Q: Do both parts operate across the same temperature range?

A: Yes. Both parts operate from -55°C to 125°C, providing identical thermal performance characteristics.

Q: Are there any compliance differences between these parts?

A: No. Both parts share identical compliance status: RoHS non-compliant, REACH Unaffected, ECCN EAR99, and HTSUS 8532.21.0040.

Q: What is the capacitance tolerance for both parts?

A: Both parts maintain ±10% capacitance tolerance, ensuring equivalent stability and predictability in circuit applications.