Equivalent & Substitute Parts for T356D335K035AS

Part Overview

The T356D335K035AS is a 3.3 µF conformal coated tantalum capacitor rated at 35 V with radial through-hole mounting. Manufactured by KEMET as part of the T356 UltraDip II series, this component is designed for general-purpose applications requiring reliable energy storage in compact form factors. The part is currently active in production with 849 units in stock.

Substitute parts are identified when electrical specifications, mechanical dimensions, and mounting characteristics remain identical or functionally equivalent, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

T356D335K035AS

KEMETIn Stock: 874T356D335K035AS Datasheet

Current PartRFQ

T356D335K035AT

KEMETIn Stock: 1688T356D335K035AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T356D335K035AS is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Capacitance value (3.3 µF), tolerance (±10%), rated voltage (35 V), and ESR (4 Ohm) must be identical
• Physical Characteristics: Radial through-hole mounting, package case type, diameter (5.00mm), height (9.90mm), and lead spacing (5.08mm) must match exactly
• Environmental Performance: Operating temperature range (-55°C to 125°C) and conformal coating type must be maintained
• Series Designation: Parts must belong to the T356 UltraDip II series

The T356D335K035AT meets all substitution criteria, differing only in RoHS compliance status (ROHS3 Compliant versus RoHS non-compliant in the original part).

Parameter Comparison

Engineering Selection Recommendations

Both T356D335K035AS and T356D335K035AT are active production parts manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

T356D335K035AS is appropriate for applications where RoHS compliance is not mandated or where legacy component specifications are required. Current inventory: 849 units.

T356D335K035AT is the preferred selection for new designs and applications subject to ROHS3 compliance requirements. This part maintains full electrical and mechanical equivalence while meeting modern regulatory standards. Current inventory: 1634 units.

Both parts carry REACH Unaffected status and EAR99 export classification. Selection does not impact circuit performance, thermal characteristics, or reliability metrics.

Frequently Asked Questions (FAQ)

Q: Can T356D335K035AT be used as a direct replacement for T356D335K035AS in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The T356D335K035AT can be substituted without circuit modification, PCB redesign, or performance impact. The only difference is RoHS compliance status.

Q: What does the "D" manufacturer size code indicate?

A: The "D" size code designates the physical package dimensions for the T356 series radial tantalum capacitor. Both substitute parts use identical size coding, ensuring mechanical compatibility with existing PCB layouts and component footprints.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both parts operate across the identical temperature range (-55°C to 125°C) and maintain the same ESR (4 Ohm) and electrical characteristics. Reliability and thermal performance are equivalent.

Q: Why does inventory differ between the two parts?

A: T356D335K035AT (1634 units) has higher stock availability than T356D335K035AS (849 units), likely reflecting market demand for ROHS3-compliant components in new production.

Q: What is the significance of conformal coating on these capacitors?

A: Conformal coating provides environmental protection against moisture, salt spray, and contaminants. Both substitute parts include this coating, maintaining protection in harsh operating environments.

Q: Can these parts be used interchangeably in high-reliability applications?

A: Yes, provided compliance requirements are satisfied. Both parts are active production components from KEMET with identical electrical specifications and operating characteristics suitable for general-purpose applications.