KEMET T520X337M010ASE040 Equivalent & Substitute Parts

Part Overview

The KEMET T520X337M010ASE040 is a 330 µF molded tantalum polymer capacitor rated at 10 V with an equivalent series resistance (ESR) of 40 mOhm at 100 kHz. This component is packaged in the 2917 (7343 Metric) surface mount case and operates across a temperature range of -55°C to 105°C with a rated lifetime of 2000 hours at 105°C. The T520X337M010ASE040 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	10 V
ESR @ 100 kHz	40 mOhm
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 105°C
Lifetime @ 105°C	2000 Hrs
Type	Molded Tantalum Polymer
Tolerance	±20%
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the T520X337M010ASE040 are qualified based on matching the following critical parameters: capacitance value (330 µF), voltage rating (10 V), ESR specification (40 mOhm @ 100 kHz), package type (2917 / 7343 Metric), mounting configuration (surface mount), operating temperature range (-55°C to 105°C), and lifetime rating (2000 Hrs @ 105°C). All substitute parts belong to the KEMET KO-CAP® T520 series and maintain identical electrical and mechanical specifications. Substitution is valid when all these parameters align across the main part and candidate substitute parts.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 100 kHz	Package	Mounting	Temp Range	Lifetime @ 105°C	Product Status	Packaging Type
T520X337M010ASE040	KEMET	330 µF	10 V	40 mOhm	2917 (7343)	Surface Mount	-55°C to 105°C	2000 Hrs	Obsolete	Bulk
T520X337M010ATE040	KEMET	330 µF	10 V	40 mOhm	2917 (7343)	Surface Mount	-55°C to 105°C	2000 Hrs	Active	Tape & Reel
T520X337M010AHE040	KEMET	330 µF	10 V	40 mOhm	2917 (7343)	Surface Mount	-55°C to 105°C	2000 Hrs	Active	Tape & Reel
T520X337M010ATE0402478	KEMET	330 µF	10 V	40 mOhm	2917 (7343)	Surface Mount	-55°C to 105°C	2000 Hrs	Active	Tape & Reel
T520X337M010ATE0407111	KEMET	330 µF	10 V	40 mOhm	2917 (7343)	Surface Mount	-55°C to 105°C	2000 Hrs	Active	Tape & Reel

Engineering Selection Recommendations

The T520X337M010ASE040 is classified as obsolete. All four substitute parts—T520X337M010ATE040, T520X337M010AHE040, T520X337M010ATE0402478, and T520X337M010ATE0407111—are active products with current manufacturing status. These substitutes maintain identical electrical and mechanical specifications and are available in Tape & Reel packaging, which is standard for production environments.

Regarding compliance: T520X337M010ATE040, T520X337M010ATE0402478, and T520X337M010ATE0407111 are ROHS3 compliant. T520X337M010AHE040 is RoHS non-compliant, matching the compliance status of the original obsolete part. All substitute parts are REACH unaffected and carry ECCN EAR99 classification.

For new designs and production applications, T520X337M010ATE040 is the primary direct substitute, offering active product status and ROHS3 compliance. For legacy applications requiring RoHS non-compliant components, T520X337M010AHE040 provides functional equivalence. Parts T520X337M010ATE0402478 and T520X337M010ATE0407111 are parametric equivalents with ROHS3 compliance and active status.

Frequently Asked Questions (FAQ)

Q: Can T520X337M010ATE040 replace T520X337M010ASE040 in existing designs?

A: Yes. T520X337M010ATE040 is a direct substitute with identical electrical specifications (330 µF, 10 V, 40 mOhm ESR), package type (2917 / 7343 Metric), and operating characteristics. The primary difference is packaging format: the original uses bulk packaging while the substitute uses Tape & Reel. Both are surface mount components with identical footprints.

Q: What is the difference between the substitute parts?

A: All four substitute parts share identical electrical and mechanical parameters. Differences exist in RoHS compliance status and internal manufacturing codes. T520X337M010ATE040, T520X337M010ATE0402478, and T520X337M010ATE0407111 are ROHS3 compliant. T520X337M010AHE040 is RoHS non-compliant. The manufacturing codes embedded in part numbers T520X337M010ATE0402478 and T520X337M010ATE0407111 indicate different production batches or internal tracking.

Q: Are all substitutes available in the same packaging format?

A: The original T520X337M010ASE040 is supplied in bulk packaging. All four substitute parts are supplied in Tape & Reel (TR) format, which is standard for automated assembly and production environments. This packaging difference does not affect electrical or mechanical compatibility.

Q: Which substitute should be selected for new production?

A: T520X337M010ATE040 is the recommended primary substitute for new production. It offers active product status, ROHS3 compliance, and direct functional equivalence. This part provides the best long-term availability and regulatory alignment for modern manufacturing.

Q: Is RoHS compliance a factor in selecting a substitute?

A: RoHS compliance depends on application requirements and regional regulations. T520X337M010ATE040, T520X337M010ATE0402478, and T520X337M010ATE0407111 are ROHS3 compliant and suitable for applications requiring RoHS certification. T520X337M010AHE040 is RoHS non-compliant and should be selected only when legacy compliance status is required.

Q: Do all substitutes have the same moisture sensitivity level?

A: Yes. All substitute parts carry Moisture Sensitivity Level (MSL) 3 with a 168-hour floor life, matching the original T520X337M010ASE040. Handling and storage procedures remain unchanged.

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