Equivalent & Substitute Parts for T520D337M004ASE040

Part Overview

The T520D337M004ASE040 is a 330 µF molded tantalum polymer capacitor rated at 4 V with 40 mOhm equivalent series resistance (ESR) at 100 kHz, manufactured by KEMET in the 2917 (7343 Metric) package. This component is classified as obsolete product status. Due to its obsolete designation, equivalent and substitute parts from active product lines are necessary for ongoing design support, production continuity, and new application development. The substitute parts listed maintain identical or compatible electrical and mechanical specifications while offering active product status and improved compliance certifications.

Substiute Parts

T520D337M004ASE040

KEMETIn Stock: 1084T520D337M004ASE040 Datasheet

Current PartRFQ

T520D337M004ATE040

KEMETIn Stock: 1119T520D337M004ATE040 Datasheet

DirectRFQ

T520V337M004ATE040

KEMETIn Stock: 1893T520V337M004ATE040 Datasheet

DirectRFQ

TCJY337M004R0040

KYOCERA AVXIn Stock: 2611TCJY337M004R0040 Datasheet

DirectRFQ

TCJY337M004R0040E

KYOCERA AVXIn Stock: 1008TCJY337M004R0040E Datasheet

DirectRFQ

TCJD337M004R0040

KYOCERA AVXIn Stock: 939TCJD337M004R0040 Datasheet

Parametric EquivalentRFQ

TCJD337M004R0040E

KYOCERA AVXIn Stock: 1178TCJD337M004R0040E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T520D337M004ASE040 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 330 µF (±20% tolerance)
• Voltage Rating: 4 V
• ESR: 40 mOhm @ 100 kHz
• Package / Case: 2917 (7343 Metric)
• Operating Temperature Range: -55°C to 105°C
• Lifetime @ 105°C: 2000 Hours
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 3 (168 Hours)

Allowable Variations:

• Manufacturer: KEMET or KYOCERA AVX
• Packaging Format: Tube or Tape & Reel (TR)
• Height - Seated (Max): Variations permitted within mechanical constraints (1.90 mm to 3.10 mm)
• Manufacturer Size Code: D or V (KEMET); D or Y (KYOCERA AVX)
• Product Status: Active preferred over obsolete

All substitute parts maintain identical electrical performance and thermal characteristics. Physical height variations do not affect circuit functionality but may impact PCB layout considerations.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: T520D337M004ATE040

The T520D337M004ATE040 is the direct equivalent from KEMET's active product line. It maintains identical electrical specifications and mechanical dimensions to the obsolete T520D337M004ASE040, with the primary difference being ROHS3 compliance certification and Tape & Reel packaging format. This part is suitable for applications requiring KEMET component continuity and modern compliance standards.

Alternative Recommendation: TCJY337M004R0040 or TCJY337M004R0040E

KYOCERA AVX TCJ series parts provide equivalent electrical performance with reduced physical height (0.079" vs. 0.122"). These parts are appropriate for space-constrained PCB layouts while maintaining all electrical and thermal specifications. Both TCJY variants are ROHS3 compliant and actively manufactured.

Height-Matched Alternative: TCJD337M004R0040 or TCJD337M004R0040E

KYOCERA AVX TCJD series parts match the original 0.122" (3.10 mm) seated height of the T520D337M004ASE040. These parts are suitable for applications where PCB layout has been optimized for the original height specification. Both TCJD variants are ROHS3 compliant and actively manufactured.

Compact Alternative: T520V337M004ATE040

The KEMET T520V series offers the lowest profile option at 0.075" (1.90 mm) seated height while maintaining all electrical specifications. This part is appropriate for high-density PCB designs and is ROHS3 compliant.

All substitute parts share identical capacitance, voltage rating, ESR, operating temperature range, and lifetime specifications. Selection should be based on packaging format requirements (Tape & Reel availability), physical height constraints, and manufacturer preference.

Frequently Asked Questions (FAQ)

Q: Can T520D337M004ATE040 be used as a direct replacement for T520D337M004ASE040?

A: Yes. Both parts are manufactured by KEMET with identical electrical specifications (330 µF, 4 V, 40 mOhm ESR), package type (2917), and physical dimensions (0.122" height). The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. Non-Compliant). The packaging format differs (Tape & Reel vs. Tube), which affects procurement and handling but not circuit performance.

Q: What is the difference between KEMET T520D and T520V variants?

A: Both variants maintain identical electrical specifications (330 µF, 4 V, 40 mOhm ESR). The difference is physical height: T520D is 0.122" (3.10 mm) and T520V is 0.075" (1.90 mm). Selection depends on PCB layout constraints. T520V is suitable for space-limited applications; T520D matches the original height specification.

Q: Are KYOCERA AVX TCJY and TCJD parts electrically equivalent to KEMET T520 parts?

A: Yes. TCJY and TCJD parts are electrically equivalent with identical capacitance (330 µF), voltage rating (4 V), and ESR (40 mOhm @ 100 kHz). Physical height differs: TCJY is 0.079" (2.00 mm) and TCJD is 0.122" (3.10 mm). All parts operate across -55°C to 105°C with 2000-hour lifetime at 105°C.

Q: What does the "E" suffix mean in TCJY337M004R0040E and TCJD337M004R0040E?

A: The "E" suffix indicates a specific manufacturing or qualification variant within KYOCERA AVX's TCJ series. Electrical and mechanical specifications remain identical to non-E variants. Both E and non-E versions are ROHS3 compliant and actively manufactured.

Q: Can these parts be used interchangeably in production?

A: Yes, within the constraints of physical dimensions and packaging format. All listed parts meet identical electrical specifications and thermal requirements. PCB layout must accommodate the physical height of the selected part. Tape & Reel packaging is standard for active production; Tube packaging is limited to the obsolete part.

Q: What is Moisture Sensitivity Level (MSL) 3, and does it affect substitution?

A: MSL 3 indicates the component requires controlled humidity storage and handling for up to 168 hours before soldering. All listed parts share MSL 3 classification, so substitution does not change moisture handling requirements.

Q: Are all substitute parts RoHS compliant?

A: The original T520D337M004ASE040 is RoHS non-compliant. All active substitute parts (T520D337M004ATE040, T520V337M004ATE040, TCJY337M004R0040, TCJY337M004R0040E, TCJD337M004R0040, TCJD337M004R0040E) are ROHS3 compliant, meeting current environmental regulations.