T520V337M004ASE025 Equivalent & Substitute Parts

Part Overview

The T520V337M004ASE025 is a 330 µF molded tantalum polymer capacitor rated at 4 V, manufactured by KEMET in the KO-CAP® T520 series. This component is designed for surface mount applications in the 2917 (7343 Metric) package format with an ESR of 25 mOhm @ 100 kHz. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new production requirements.

Substiute Parts

T520V337M004ASE025

KEMETIn Stock: 1007T520V337M004ASE025 Datasheet

Current PartRFQ

T520V337M004ATE025

KEMETIn Stock: 3404T520V337M004ATE025 Datasheet

DirectRFQ

T520V337M004ATE0257111

KEMETIn Stock: 1113T520V337M004ATE0257111 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T520V337M004ASE025 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 4 V (exact match required)
• ESR specification: 25 mOhm @ 100 kHz (exact match required)
• Tolerance: ±20% (exact match required)

Mechanical Parameters:

• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Physical dimensions: 0.287" L x 0.169" W (7.30 mm x 4.30 mm) (exact match required)
• Maximum seated height: 0.075" (1.90 mm) (exact match required)

Environmental Parameters:

• Operating temperature range: -55°C to 105°C (exact match required)
• Lifetime rating: 2000 Hours @ 105°C (exact match required)
• MSL rating: 3 (168 Hours) (exact match required)

Substitute parts must be from the KEMET KO-CAP® T520 series and maintain all specified electrical and mechanical characteristics. The primary distinction between the main part and substitutes is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: T520V337M004ATE025

The T520V337M004ATE025 is the direct functional equivalent of the obsolete T520V337M004ASE025. Both parts share identical electrical specifications (330 µF, 4 V, 25 mOhm ESR) and mechanical dimensions (2917 package, 7.30 mm x 4.30 mm x 1.90 mm). The primary differences are product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. Bulk). The T520V337M004ATE025 carries ROHS3 compliance certification, meeting current regulatory requirements. This part is suitable for direct replacement in new production and legacy system support applications.

Secondary Substitute: T520V337M004ATE0257111

The T520V337M004ATE0257111 provides identical electrical and mechanical performance to the main part with the same parametric specifications. This variant is also Active status with ROHS3 compliance. The part number suffix indicates a specific manufacturing or traceability designation. Both active substitutes are functionally interchangeable from an engineering perspective.

Compliance Consideration:

The original T520V337M004ASE025 is RoHS non-compliant. Both substitute parts (T520V337M004ATE025 and T520V337M004ATE0257111) are ROHS3 compliant, aligning with current environmental and regulatory standards for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can T520V337M004ATE025 be used as a direct replacement for T520V337M004ASE025?

A: Yes. Both parts are electrically and mechanically identical. They share the same capacitance (330 µF), voltage rating (4 V), ESR (25 mOhm @ 100 kHz), package (2917), and operating specifications. The primary difference is product status and packaging format.

Q: What is the difference between T520V337M004ATE025 and T520V337M004ATE0257111?

A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. The suffix variation in the part number indicates a manufacturing or traceability designation. From an engineering selection standpoint, both are functionally interchangeable.

Q: Why is the original part marked as obsolete?

A: The T520V337M004ASE025 is listed as obsolete by KEMET. The active substitutes T520V337M004ATE025 and T520V337M004ATE0257111 provide continued availability of this capacitor specification.

Q: Does packaging format affect electrical performance?

A: No. The Tape & Reel (TR) packaging of the substitute parts does not alter electrical characteristics. Packaging format affects handling, storage, and assembly processes but not component performance. Both bulk and tape & reel formats contain identical capacitor elements.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both T520V337M004ATE025 and T520V337M004ATE0257111 are ROHS3 compliant, whereas the original T520V337M004ASE025 is RoHS non-compliant. This compliance upgrade is a regulatory advantage for new designs and procurement.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes, provided the assembly process accommodates the Tape & Reel packaging format. The physical dimensions and mounting characteristics are identical, ensuring compatibility with existing PCB layouts and reflow profiles.

Q: What is the MSL rating and why does it matter?

A: All three parts carry MSL 3 (168 Hours) rating. This indicates moisture sensitivity level and maximum floor life before reflow soldering. Proper storage and handling procedures must be followed to maintain component reliability.