T591D337M2R5ATE015 Equivalent & Substitute Parts

Part Overview

The T591D337M2R5ATE015 is a 330 µF molded tantalum polymer capacitor rated at 2.5 V, manufactured by KEMET under the KO-CAP® T591 series. This surface mount component features an ESR of 15 mOhm @ 100 kHz and operates across a temperature range of -55°C to 105°C with a rated lifetime of 2000 hours at 105°C. The component is ROHS3 compliant and REACH unaffected, with an active product status. Substitute parts are identified when electrical specifications (capacitance, voltage rating, ESR, temperature range, and lifetime) remain identical while physical dimensions or manufacturer series may differ, enabling design flexibility and supply chain optimization.

Substiute Parts

T591D337M2R5ATE015

KEMETIn Stock: 867T591D337M2R5ATE015 Datasheet

Current PartRFQ

T520V337M2R5ATE015

KEMETIn Stock: 2355T520V337M2R5ATE015 Datasheet

DirectRFQ

T520W337M2R5ATE015

KEMETIn Stock: 4422T520W337M2R5ATE015 Datasheet

DirectRFQ

2R5TAE330M

Panasonic Electronic ComponentsIn Stock: 67112R5TAE330M Datasheet

DirectRFQ

2R5TAE330MF

Panasonic Electronic ComponentsIn Stock: 10102R5TAE330MF Datasheet

DirectRFQ

2R5TPE330MF

Panasonic Electronic ComponentsIn Stock: 122562R5TPE330MF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T591D337M2R5ATE015 are qualified based on strict electrical and mechanical equivalence across the following criteria:

Electrical Equivalence Requirements:

• Capacitance: 330 µF (exact match)
• Voltage Rating: 2.5 V (exact match)
• ESR: 15 mOhm @ 100 kHz (exact match)
• Operating Temperature: -55°C ~ 105°C (exact match)
• Lifetime: 2000 Hrs @ 105°C (exact match)
• Tolerance: ±20% (exact match)

Mechanical Equivalence Requirements:

• Package / Case: 2917 (7343 Metric) (exact match)
• Mounting Type: Surface Mount (exact match)
• Footprint: 0.287" L x 0.169" W (7.30 mm x 4.30 mm) (exact match)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Product Status: Active

Substitutes are identified across two manufacturers: KEMET (KO-CAP® T520 series) and Panasonic Electronic Components (POSCAP™ TA and POSCAP™ TPE series). Physical height variations exist among substitutes but do not affect electrical performance or PCB compatibility within the 2917 package specification.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain full electrical equivalence to the T591D337M2R5ATE015 across capacitance, voltage rating, ESR, operating temperature range, and lifetime specifications. All substitutes are ROHS3 compliant and carry active product status.

KEMET KO-CAP® T520 Series Substitutes (T520V337M2R5ATE015, T520W337M2R5ATE015): These parts offer reduced physical height compared to the original T591D337M2R5ATE015, with heights of 1.90 mm and 1.50 mm respectively. Selection between these variants depends on available PCB clearance. The T520W337M2R5ATE015 provides the lowest profile option with highest inventory availability (4400 Pcs).

Panasonic POSCAP™ TA Series Substitutes (2R5TAE330M, 2R5TAE330MF): These parts maintain identical electrical specifications with a physical height of 2.00 mm. The 2R5TAE330M variant offers the highest inventory level among Panasonic options (6657 Pcs).

Panasonic POSCAP™ TPE Series Substitute (2R5TPE330MF): This part delivers the highest inventory availability across all substitutes (12200 Pcs) while maintaining full electrical equivalence and a physical height of 2.00 mm.

Selection should prioritize inventory availability, physical height constraints within the PCB design, and supply chain lead time requirements. All substitutes are electrically interchangeable within the 2917 package footprint.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the T591D337M2R5ATE015?

A: Substitution is determined by exact equivalence in capacitance (330 µF), voltage rating (2.5 V), ESR (15 mOhm @ 100 kHz), operating temperature range (-55°C ~ 105°C), lifetime (2000 Hrs @ 105°C), package type (2917), and mounting method (surface mount). All identified substitutes meet these criteria.

Q: Can I use a substitute with different physical height?

A: Yes. All substitutes use the identical 2917 (7343 Metric) package with the same footprint (0.287" L x 0.169" W). Height variations (ranging from 1.50 mm to 3.10 mm) do not affect PCB compatibility or electrical performance. Height selection depends on available vertical clearance in your design.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance status, matching the original T591D337M2R5ATE015.

Q: What is the difference between KEMET and Panasonic substitutes?

A: Both manufacturers provide electrically identical parts within the 2917 package. Differences exist only in series designation (KEMET KO-CAP® T591/T520 versus Panasonic POSCAP™ TA/TPE), physical height, and inventory availability. Electrical performance and reliability are equivalent.

Q: Which substitute has the best availability?

A: The Panasonic 2R5TPE330MF (POSCAP™ TPE series) offers the highest inventory level at 12200 Pcs, followed by the KEMET T520W337M2R5ATE015 at 4400 Pcs.

Q: Can I mix different substitute parts in the same design?

A: Yes. All substitutes are electrically and mechanically equivalent within the 2917 package specification. Mixed usage is permissible from an engineering standpoint, though design documentation should reflect the specific part numbers used.

Q: What is the tolerance specification for all parts?

A: All parts, including the original and all substitutes, carry a tolerance of ±20% on capacitance.