T520V157M004ASE009 Equivalent & Substitute Parts

Part Overview

The T520V157M004ASE009 is a 150 µF molded tantalum polymer capacitor rated at 4 V, manufactured by KEMET in the KO-CAP® T520 series. This component features a 2917 (7343 Metric) package with 9 mOhm equivalent series resistance at 100 kHz, designed for general-purpose surface mount applications across industrial and commercial electronics.

The main part number T520V157M004ASE009 carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this specific capacitance, voltage rating, and form factor.

Substiute Parts

T520V157M004ASE009

KEMETIn Stock: 866T520V157M004ASE009 Datasheet

Current PartRFQ

T520V157M004ATE009

KEMETIn Stock: 1042T520V157M004ATE009 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T520V157M004ASE009 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 150 µF
• Voltage Rating: 4 V
• Package / Case: 2917 (7343 Metric)
• ESR @ 100 kHz: 9 mOhm
• Operating Temperature Range: -55°C to 105°C
• Lifetime @ 105°C: 2000 Hours
• Tolerance: ±20%
• Moisture Sensitivity Level: 3 (168 Hours)

Allowable Variation:

• Packaging format (tube vs. tape & reel) does not affect electrical or mechanical compatibility
• Product status transition from obsolete to active does not alter functional performance

The substitute part T520V157M004ATE009 meets all mandatory matching parameters and differs only in packaging format and product status classification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: T520V157M004ATE009

The T520V157M004ATE009 is the direct functional equivalent of the obsolete T520V157M004ASE009. Both components share identical electrical specifications, mechanical dimensions, and thermal characteristics. The substitute part is currently in active production status, ensuring long-term supply availability.

Compliance Consideration:

The substitute part T520V157M004ATE009 carries ROHS3 compliance certification, whereas the main part is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the substitute part satisfies compliance obligations while maintaining full electrical and mechanical compatibility.

Packaging Selection:

The main part is supplied in tube packaging; the substitute is supplied in tape & reel format. Tape & reel packaging is standard for automated assembly processes and high-volume production environments. Tube packaging may be requested through alternative distribution channels if required for specific assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can T520V157M004ATE009 be used as a direct replacement for T520V157M004ASE009 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The substitute part meets all functional requirements specified for the original component, including capacitance, voltage rating, ESR, temperature range, and package dimensions.

Q: What is the difference between the two part numbers?

A: The difference is limited to packaging format (tube vs. tape & reel) and product status (obsolete vs. active). The electrical and mechanical specifications are identical.

Q: Does the RoHS3 compliance of the substitute part affect compatibility?

A: No. RoHS3 compliance is a regulatory certification that does not alter electrical performance or physical compatibility. The substitute part is fully compatible with designs originally specified for the non-compliant main part.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both parts use the 2917 (7343 Metric) package with identical length, width, and maximum seated height specifications. PCB footprints and assembly processes remain unchanged.

Q: Is tape & reel packaging suitable for manual assembly?

A: Tape & reel packaging is optimized for automated pick-and-place assembly. Manual assembly is possible but requires manual component extraction from the tape carrier. Tube packaging may be sourced through alternative suppliers if manual assembly is the primary assembly method.

Q: What is the moisture sensitivity level, and how does it affect handling?

A: Both parts carry MSL 3 (168 Hours) rating. This indicates the component must be stored in controlled humidity conditions and used within 168 hours of exposure to ambient humidity above 30% RH. Standard moisture-barrier packaging and desiccant storage are required.