Equivalent & Substitute Parts for T520V337M004ASE040

Part Overview

The T520V337M004ASE040 is a 330 µF molded tantalum polymer capacitor rated at 4 V, manufactured by KEMET in the KO-CAP® T520 series. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing procurement and design continuity. The part is designed for surface mount applications in the 2917 (7343 Metric) package format with a maximum seated height of 1.90 mm and an equivalent series resistance of 40 mOhm at 100 kHz.

Substiute Parts

T520V337M004ASE040

KEMETIn Stock: 979T520V337M004ASE040 Datasheet

Current PartRFQ

T520V337M004ATE040

KEMETIn Stock: 1893T520V337M004ATE040 Datasheet

DirectRFQ

T520V337M004ATE0408000

KEMETIn Stock: 1065T520V337M004ATE0408000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete T520V337M004ASE040 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 4 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR @ 100 kHz: 40 mOhm (exact match required)
• Operating Temperature Range: -55°C to 105°C (exact match required)
• Lifetime @ 105°C: 2000 Hours (exact match required)

Mechanical Equivalence Criteria:

• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 7.30 mm L × 4.30 mm W × 1.90 mm H maximum (exact match required)
• MSL Rating: 3 (168 Hours) (exact match required)

Series Equivalence:

• Manufacturer Series: KO-CAP® T520 (same series)

The substitute parts identified below meet all electrical and mechanical equivalence criteria. The primary distinction between the main part and substitutes is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: T520V337M004ATE040

This part is the direct functional equivalent of the obsolete T520V337M004ASE040. It maintains identical electrical and mechanical specifications while offering active product status. The part is ROHS3 compliant, addressing regulatory requirements for new designs and procurement cycles. Packaging is supplied in Tape & Reel (TR) format, standard for automated assembly operations. Current inventory availability is 1797 pieces.

Secondary Recommendation: T520V337M004ATE0408000

This part is a parametric equivalent with identical electrical and mechanical performance. It differs only in packaging designation and internal manufacturing code. The part is ROHS3 compliant and maintains active product status. Current inventory availability is 1032 pieces. This option is suitable when specific packaging or supply chain requirements align with the extended part number designation.

Compliance Considerations:

Both substitute parts are ROHS3 compliant, whereas the main part is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, substitution to either active equivalent is necessary. Both parts maintain REACH unaffected status and EAR99 export classification, consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can T520V337M004ATE040 be used as a direct replacement for T520V337M004ASE040?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 330 µF capacitance, 4 V rating, 40 mOhm ESR at 100 kHz, 2917 package, and identical thermal characteristics. The primary difference is product status (active versus obsolete) and packaging format (Tape & Reel versus bulk).

Q: What is the difference between T520V337M004ATE040 and T520V337M004ATE0408000?

A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. The difference lies in the extended part number designation (ATE0408000 versus ATE040), which reflects internal KEMET manufacturing and packaging codes. Electrical performance and physical dimensions are identical.

Q: Are the substitute parts compatible with existing PCB designs?

A: Yes. The substitute parts maintain the identical 2917 (7343 Metric) package footprint, physical dimensions (7.30 mm × 4.30 mm × 1.90 mm maximum height), and surface mount mounting type. No PCB redesign or footprint modification is required.

Q: What is the significance of the RoHS compliance difference?

A: The original part (T520V337M004ASE040) is RoHS non-compliant, while both substitute parts are ROHS3 compliant. For applications subject to RoHS regulations or customer specifications requiring RoHS compliance, substitution to either active equivalent is necessary. ROHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive.

Q: How does the Tape & Reel packaging affect component selection?

A: Tape & Reel (TR) packaging is the standard format for automated surface mount assembly. It enables high-speed pick-and-place operations and is compatible with standard reel handling equipment. The original bulk packaging is less common in modern manufacturing environments. Tape & Reel format is the recommended packaging for new designs and procurement.

Q: Are there any thermal or reliability differences between the substitute parts?

A: No. Both substitute parts maintain identical operating temperature range (-55°C to 105°C), lifetime specification (2000 hours at 105°C), and MSL rating (3, 168 hours). Thermal and reliability performance are equivalent to the original part.

Q: What is the MSL rating and why is it important?

A: MSL (Moisture Sensitivity Level) 3 with 168-hour floor life indicates that the component must be stored in controlled humidity conditions and used within 168 hours of exposure to ambient conditions above 30°C and 85% relative humidity. Proper moisture handling during storage and assembly is required to prevent component degradation.