KEMET T520X687M004ASE035 Equivalent & Substitute Parts

Part Overview

The KEMET T520X687M004ASE035 is a 680 µF molded tantalum polymer capacitor rated at 4 V with an ESR of 35 mOhm @ 100 kHz in a 2917 (7343 Metric) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity. The substitute parts listed maintain identical electrical specifications and mechanical dimensions while offering improved product status and compliance certifications.

Substiute Parts

T520X687M004ASE035

KEMETIn Stock: 771T520X687M004ASE035 Datasheet

Current PartRFQ

T520X687M004ATE035

KEMETIn Stock: 6190T520X687M004ATE035 Datasheet

DirectRFQ

T520X687M004ATE0357622

KEMETIn Stock: 970T520X687M004ATE0357622 Datasheet

Parametric EquivalentRFQ

T520X687M004ATE0358000

KEMETIn Stock: 965T520X687M004ATE0358000 Datasheet

Parametric EquivalentRFQ

T520X687M004ATE0358395

KEMETIn Stock: 762T520X687M004ATE0358395 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T520X687M004ASE035 is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

• Capacitance: 680 µF (exact match required)
• Voltage Rating: 4 V (exact match required)
• ESR: 35 mOhm @ 100 kHz (exact match required)

Critical Mechanical Parameters:

• Package / Case: 2917 (7343 Metric) (exact match required)
• Physical Dimensions: 0.287" L x 0.169" W / 7.30 mm x 4.30 mm (exact match required)
• Height - Seated (Max): 0.169" (4.30 mm) (exact match required)

Environmental & Reliability Parameters:

• Operating Temperature Range: -55°C ~ 105°C (exact match required)
• Lifetime @ Temp.: 2000 Hrs @ 105°C (exact match required)
• Moisture Sensitivity Level: 3 (168 Hours) (exact match required)

All substitute parts listed maintain these parameters identically. Differences exist only in packaging format (Tape & Reel vs. bulk), product status (Active vs. Obsolete), and RoHS compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: T520X687M004ATE035

The T520X687M004ATE035 is the direct equivalent substitute for the obsolete T520X687M004ASE035. This part maintains all electrical and mechanical specifications identically while offering:

• Active product status with ongoing manufacturer support
• ROHS3 compliance certification
• Tape & Reel packaging suitable for automated assembly
• Highest inventory availability (6094 Pcs)

Secondary Recommendations: T520X687M004ATE0357622, T520X687M004ATE0358000, T520X687M004ATE0358395

These three parts are parametric equivalents with identical electrical and mechanical characteristics. Selection among these alternatives is based on:

• Packaging format requirements (all supplied in Tape & Reel)
• Inventory availability and lead time considerations
• Internal supply chain or procurement specifications

All three maintain ROHS3 compliance and active product status. The suffix variations in part numbers reflect internal KEMET manufacturing or distribution codes and do not affect functional or physical compatibility.

Frequently Asked Questions (FAQ)

Q: Can T520X687M004ATE035 be used as a direct replacement for T520X687M004ASE035?

A: Yes. The T520X687M004ATE035 is a direct equivalent substitute. All electrical parameters (680 µF, 4 V, 35 mOhm ESR), mechanical dimensions (2917 package, 7.30 mm x 4.30 mm), and environmental specifications (-55°C ~ 105°C, 2000 Hrs @ 105°C) are identical. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. Non-Compliant).

Q: What is the difference between T520X687M004ATE035 and T520X687M004ATE0357622?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The suffix variation (ATE035 vs. ATE0357622) reflects internal KEMET manufacturing or distribution codes. No functional or physical differences exist between these parts for circuit design or PCB assembly purposes.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use the identical 2917 (7343 Metric) package with dimensions of 0.287" L x 0.169" W (7.30 mm x 4.30 mm) and maximum seated height of 0.169" (4.30 mm). PCB footprints designed for the T520X687M004ASE035 accommodate all listed substitutes without modification.

Q: What is the significance of the Tape & Reel packaging for the substitute parts?

A: Tape & Reel (TR) packaging is the standard format for automated surface mount assembly. The original T520X687M004ASE035 was supplied in bulk packaging. The substitute parts in Tape & Reel format are optimized for high-volume production environments and automated pick-and-place equipment.

Q: Why is the original part marked as Obsolete?

A: The T520X687M004ASE035 is classified as obsolete by KEMET, indicating discontinued production and limited availability. The active substitute parts listed ensure design continuity and long-term supply chain reliability for new and ongoing production.

Q: Do all substitute parts meet the same environmental and reliability specifications?

A: Yes. All substitute parts maintain identical operating temperature range (-55°C ~ 105°C), lifetime rating (2000 Hrs @ 105°C), and Moisture Sensitivity Level (MSL 3, 168 Hours). Environmental and reliability performance is equivalent across all listed alternatives.

Q: Which substitute part should be selected for new designs?

A: T520X687M004ATE035 is the recommended choice for new designs. It offers the highest inventory availability, active product status, and ROHS3 compliance. The other three alternatives (ATE0357622, ATE0358000, ATE0358395) are suitable if specific procurement or supply chain requirements necessitate their selection.