KEMET T520B336M006ASE040 Equivalent & Substitute Parts

Part Overview

The KEMET T520B336M006ASE040 is a 33 µF molded tantalum polymer capacitor rated at 6.3 V with 40 mOhm equivalent series resistance at 100 kHz. This component is designed for surface mount applications in the 1411 (3528 Metric) package format. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued circuit functionality and production continuity.

Substiute Parts

T520B336M006ASE040

KEMETIn Stock: 893T520B336M006ASE040 Datasheet

Current PartRFQ

T520B336M006ATE040

KEMETIn Stock: 3455T520B336M006ATE040 Datasheet

DirectRFQ

T520B336M006AHE040

KEMETIn Stock: 810T520B336M006AHE040 Datasheet

Parametric EquivalentRFQ

T520B336M006ATE0402478

KEMETIn Stock: 1052T520B336M006ATE0402478 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete T520B336M006ASE040 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance: 33 µF (exact match required)
• Voltage Rating: 6.3 V (exact match required)
• ESR: 40 mOhm @ 100 kHz (exact match required)
• Tolerance: ±20% (exact match required)
• Operating Temperature: -55°C to 105°C (exact match required)
• Lifetime: 2000 Hours @ 105°C (exact match required)

Mechanical Equivalence Criteria:

• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 0.138" L × 0.110" W × 0.079" H maximum (exact match required)
• Moisture Sensitivity Level: 3 (168 Hours) (exact match required)

Series Compatibility:

• All substitute parts belong to the KEMET KO-CAP® T520 series

The substitute parts identified maintain complete parametric equivalence with the main part while differing only in packaging format (Tape & Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: T520B336M006ATE040

This part is the direct substitute for the obsolete T520B336M006ASE040. It maintains complete parametric equivalence across all electrical and mechanical specifications. The part is currently in active production status with 3,398 units in stock. This part achieves ROHS3 compliance, providing regulatory advantage for new designs and manufacturing environments with RoHS requirements.

Secondary Recommendation: T520B336M006ATE0402478

This part provides parametric equivalence with identical electrical and mechanical characteristics. It is in active production status with 1,038 units in stock and achieves ROHS3 compliance. The extended part number suffix indicates a specific manufacturing or distribution variant.

Alternative Consideration: T520B336M006AHE040

This part maintains complete parametric equivalence and is in active production status with 733 units in stock. However, it retains RoHS non-compliant status, matching the regulatory classification of the original obsolete part. Selection of this part is appropriate only when RoHS compliance is not a circuit or manufacturing requirement.

All three substitute parts are members of the KEMET KO-CAP® T520 series and are suitable for direct replacement in existing circuit designs without modification to PCB layouts, assembly processes, or electrical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can T520B336M006ATE040 be used as a direct replacement for T520B336M006ASE040?

A: Yes. T520B336M006ATE040 is a direct substitute. Both parts share identical capacitance (33 µF), voltage rating (6.3 V), ESR (40 mOhm @ 100 kHz), package format (1411/3528 Metric), and all other electrical and mechanical parameters. The primary difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. Bulk).

Q: What is the difference between the three substitute parts?

A: All three substitute parts (T520B336M006ATE040, T520B336M006AHE040, and T520B336M006ATE0402478) are parametrically identical in electrical and mechanical specifications. Differences exist only in RoHS compliance status and manufacturing/distribution variants indicated by the part number suffix.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel packaging is a distribution and assembly format only. It does not affect the electrical performance, reliability, or functional characteristics of the capacitor component itself.

Q: Are all substitute parts compatible with the original PCB design?

A: Yes. All substitute parts maintain identical physical dimensions (0.138" L × 0.110" W × 0.079" H maximum), package format (1411/3528 Metric), and surface mount mounting type. No PCB layout modifications are required.

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

A: For new designs, T520B336M006ATE040 or T520B336M006ATE0402478 are recommended due to ROHS3 compliance status, which aligns with current regulatory requirements and manufacturing standards.

Q: Is there a difference in reliability between the substitute parts?

A: No. All substitute parts share identical operating temperature range (-55°C to 105°C), lifetime specification (2000 Hours @ 105°C), and moisture sensitivity level (MSL 3, 168 Hours).