Equivalent & Substitute Parts for T520B686M006ATE035

Part Overview

The T520B686M006ATE035 is a tantalum polymer capacitor manufactured by KEMET, classified as a surface mount device in the KO-CAP® T520 series. This component is an active product with ROHS3 compliance and is supplied in Tape & Reel packaging. The part is currently in stock with 656 units available as new original inventory.

Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory constraints require component alternatives that maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

T520B686M006ATE035

KEMETIn Stock: 733T520B686M006ATE035 Datasheet

Current PartRFQ

T520B686M006ATE040

KEMETIn Stock: 34025T520B686M006ATE040 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T520B686M006ATE035 is determined by the following criteria:

Manufacturer Consistency: All substitute parts must be manufactured by KEMET to ensure design and quality continuity within the KO-CAP® T520 series.

Series Alignment: Substitute parts must belong to the same KO-CAP® T520 series to maintain electrical performance characteristics and mechanical compatibility.

Packaging Specification: All substitute parts must use Tape & Reel (TR) packaging to ensure compatibility with automated assembly processes.

Compliance Requirements: Substitute parts must maintain ROHS3 compliance and REACH Unaffected status to satisfy regulatory requirements.

Moisture Sensitivity: Substitute parts must have an MSL rating of 3 (168 Hours) to ensure equivalent handling and storage requirements.

Product Status: Only active products are eligible as substitutes to ensure ongoing availability and manufacturer support.

The identified substitute part T520B686M006ATE040 meets all these criteria and is therefore qualified as an equivalent component.

Parameter Comparison

Engineering Selection Recommendations

Both the T520B686M006ATE035 and T520B686M006ATE040 are active products with identical ROHS3 and REACH compliance certifications. The components share the same capacitance value (68 µF), voltage rating (6.3 V), tolerance (±20%), operating temperature range (-55°C to 105°C), and lifetime specification (2000 Hrs @ 105°C).

The primary difference between these parts is the ESR specification: the T520B686M006ATE035 specifies 35 mOhm @ 100kHz, while the T520B686M006ATE040 specifies 40 mOhm @ 100kHz. Both parts are housed in the same 1411 (3528 Metric) package with identical physical dimensions and mounting characteristics.

Selection between these parts should be based on ESR requirements specific to the application circuit. The T520B686M006ATE040 is available in significantly higher inventory (33,917 units) compared to the T520B686M006ATE035 (656 units), which may influence sourcing decisions when component availability is a consideration.

Frequently Asked Questions (FAQ)

Q: What determines whether T520B686M006ATE040 can substitute for T520B686M006ATE035?

A: Substitution is valid when both parts maintain identical electrical specifications (capacitance, voltage rating, tolerance, operating temperature range, and lifetime), identical physical packaging (1411 case size), and equivalent compliance certifications (ROHS3, REACH). The ESR difference of 5 mOhm is the only parameter variance between these parts.

Q: Are there any mechanical compatibility issues between these substitute parts?

A: No. Both parts use the 1411 (3528 Metric) package with identical dimensions: 0.138" L x 0.110" W (3.50mm x 2.80mm) and maximum seated height of 0.079" (2.00mm). They are fully compatible with the same PCB footprints and assembly processes.

Q: Does the ESR difference affect circuit performance?

A: The ESR specification is provided for reference. The 5 mOhm difference between the parts (35 mOhm versus 40 mOhm @ 100kHz) should be evaluated against specific circuit requirements. Both parts meet the same lifetime and temperature specifications.

Q: Are moisture sensitivity requirements identical?

A: Yes. Both parts have an MSL rating of 3 (168 Hours), requiring identical handling, storage, and reflow procedures during assembly.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that the ESR specification of 40 mOhm for the T520B686M006ATE040 is acceptable for the application. Both parts are active products with current manufacturer support and identical compliance status.