T520V337M2R5ASE025 Equivalent & Substitute Parts

Part Overview

The T520V337M2R5ASE025 is a 330 µF molded tantalum polymer capacitor rated at 2.5 V with an equivalent series resistance (ESR) of 25 mOhm at 100 kHz, manufactured by KEMET in the KO-CAP® T520 series. This component is housed in a 2917 (7343 Metric) surface mount package with a maximum seated height of 0.075" (1.90 mm).

The T520V337M2R5ASE025 has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Active alternatives within the same electrical and mechanical specifications are available from the same manufacturer.

Substiute Parts

T520V337M2R5ASE025

KEMETIn Stock: 887T520V337M2R5ASE025 Datasheet

Current PartRFQ

T520V337M2R5ATE025

KEMETIn Stock: 19469T520V337M2R5ATE025 Datasheet

DirectRFQ

T520W337M2R5ATE025

KEMETIn Stock: 3670T520W337M2R5ATE025 Datasheet

DirectRFQ

T520V337M2R5AHE025

KEMETIn Stock: 1702T520V337M2R5AHE025 Datasheet

Parametric EquivalentRFQ

T520V337M2R5ATE018

KEMETIn Stock: 1259T520V337M2R5ATE018 Datasheet

Parametric EquivalentRFQ

T520V337M2R5ATE0252478

KEMETIn Stock: 826T520V337M2R5ATE0252478 Datasheet

Parametric EquivalentRFQ

T520V337M2R5ATE0258000

KEMETIn Stock: 762T520V337M2R5ATE0258000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T520V337M2R5ASE025 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 330 µF
• Voltage Rating: 2.5 V
• Package / Case: 2917 (7343 Metric)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 105°C
• Type: Molded Tantalum Polymer

Allowable Variation Parameters:

• ESR @ 100 kHz: 18 mOhm to 25 mOhm (lower ESR values are acceptable as they represent improved performance)
• Packaging Format: Cut Tape (CT), Digi-Reel®, or Tape & Reel (TR)
• Manufacturer Size Code: V or W (affects maximum seated height)
• Product Status: Active substitutes are preferred over obsolete parts
• RoHS Compliance: Both compliant and non-compliant variants are functionally equivalent

Substitute parts are grouped into two categories: Direct Manufacturer Substitutes (identical electrical and mechanical specifications with different packaging) and Parametric Equivalents (matching core electrical parameters with minor variations in ESR or physical dimensions).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: T520V337M2R5ATE025

The T520V337M2R5ATE025 is the direct functional equivalent of the obsolete T520V337M2R5ASE025. This part maintains identical electrical specifications (330 µF, 2.5 V, 25 mOhm ESR) and mechanical dimensions (0.075" maximum seated height). The part is currently in active production status with ROHS3 compliance, ensuring long-term supply availability and regulatory alignment. Packaging is available in Cut Tape (CT) and Digi-Reel® formats, supporting both manual and automated assembly processes.

Secondary Recommendation: T520V337M2R5ATE018

The T520V337M2R5ATE018 provides superior electrical performance with reduced ESR (18 mOhm versus 25 mOhm at 100 kHz) while maintaining all other critical parameters. This lower ESR results in improved thermal performance and reduced voltage ripple in power supply applications. The part is ROHS3 compliant and in active production. Selection of this variant is appropriate when thermal management or ripple current specifications benefit from lower impedance characteristics.

Alternative for Height-Constrained Designs: T520W337M2R5ATE025

The T520W337M2R5ATE025 is functionally equivalent with a reduced maximum seated height of 0.059" (1.50 mm) compared to 0.075" (1.90 mm). This variant is suitable for applications with vertical space constraints. The part is ROHS3 compliant and available in Tape & Reel (TR) packaging. Electrical specifications remain identical to the original part.

Non-Compliant Alternatives: T520V337M2R5AHE025

The T520V337M2R5AHE025 matches all electrical and mechanical specifications of the original part but carries RoHS non-compliant status. This part is appropriate only for applications where RoHS compliance is not required or for legacy system maintenance where regulatory requirements do not apply.

Extended Reel Variants: T520V337M2R5ATE0252478 and T520V337M2R5ATE0258000

These parts are electrically and mechanically identical to T520V337M2R5ATE025 but are supplied on extended reel quantities (2478 and 8000 pieces respectively). Selection depends on procurement volume requirements and inventory management strategies.

Frequently Asked Questions (FAQ)

Q: Can the T520V337M2R5ATE025 be used as a direct replacement for the T520V337M2R5ASE025?

A: Yes. The T520V337M2R5ATE025 is a direct functional equivalent. Both parts share identical capacitance (330 µF), voltage rating (2.5 V), ESR (25 mOhm @ 100 kHz), package dimensions (2917 / 7343 Metric), and maximum seated height (0.075"). The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant).

Q: What is the difference between the "V" and "W" size codes in the part number?

A: The size code affects the maximum seated height of the component. The "V" code specifies a maximum seated height of 0.075" (1.90 mm), while the "W" code specifies 0.059" (1.50 mm). Both codes use the same 2917 (7343 Metric) package footprint. Selection between these variants depends on available vertical clearance in the application.

Q: Is the T520V337M2R5ATE018 with 18 mOhm ESR compatible with the original design?

A: Yes. The T520V337M2R5ATE018 is a parametric equivalent with lower ESR (18 mOhm versus 25 mOhm). Lower ESR is a performance improvement that reduces heat generation and voltage ripple. This part is electrically and mechanically compatible with designs specified for 25 mOhm ESR. No circuit modifications are required.

Q: What packaging formats are available for these substitute parts?

A: The T520V337M2R5ATE025 is available in Cut Tape (CT) and Digi-Reel® formats. The T520V337M2R5AHE025, T520V337M2R5ATE018, T520V337M2R5ATE0252478, and T520V337M2R5ATE0258000 are supplied in Tape & Reel (TR) format. Selection depends on assembly equipment compatibility and procurement volume requirements.

Q: Are all substitute parts ROHS3 compliant?

A: No. The T520V337M2R5ATE025, T520V337M2R5ATE018, T520V337M2R5ATE0252478, and T520V337M2R5ATE0258000 are ROHS3 compliant. The T520V337M2R5AHE025 is RoHS non-compliant. The original T520V337M2R5ASE025 is also RoHS non-compliant. Compliance requirements should be verified against application and regulatory standards before part selection.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All substitute parts carry MSL 3 (168 Hours), identical to the original part. This classification requires controlled storage conditions and limits the time between package opening and soldering to 168 hours under specified humidity conditions.

Q: Can these parts be used interchangeably in automated assembly processes?

A: Yes, provided the assembly equipment is configured for the selected packaging format. Cut Tape (CT) and Digi-Reel® formats (T520V337M2R5ATE025) are suitable for pick-and-place equipment. Tape & Reel (TR) formats (all other variants) are also compatible with standard automated assembly systems. Verify equipment compatibility with your packaging selection.

Q: What is the operating temperature range for these capacitors?

A: All parts operate across -55°C to 105°C. Lifetime rating is specified as 2000 hours at 105°C. These specifications are identical across all substitute variants.