T496D685K035AS Equivalent & Substitute Parts

Part Overview

The T496D685K035AS is a 6.8 µF molded tantalum capacitor rated for 35 V operation in a 2917 (7343 Metric) surface mount package. This component is manufactured by KEMET and features a fail-safe design with built-in fuse protection. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives for ongoing design support and procurement requirements.

Substiute Parts

T496D685K035AS

KEMETIn Stock: 937T496D685K035AS Datasheet

Current PartRFQ

T496D685K035AT

KEMETIn Stock: 812T496D685K035AT Datasheet

DirectRFQ

T496D685K035ATE1K3

KEMETIn Stock: 1852T496D685K035ATE1K3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T496D685K035AS is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Capacitance: 6.8 µF
• Tolerance: ±10%
• Voltage Rating: 35 V
• Package / Case: 2917 (7343 Metric)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 125°C
• Type: Molded Tantalum
• Features: Fail Safe with Built-in Fuse

All identified substitute parts maintain identical values across these parameters. Substitute parts are differentiated by product status (active versus obsolete), packaging configuration (Tape & Reel versus other formats), and compliance certifications (RoHS3 Compliant versus RoHS non-compliant).

Parameter Comparison

Engineering Selection Recommendations

T496D685K035AT is a direct substitute for the obsolete T496D685K035AS. This part maintains full electrical and mechanical equivalence while offering active product status and ROHS3 compliance. The T496D685K035AT is supplied in Tape & Reel packaging and provides specified ESR and lifetime characteristics.

T496D685K035ATE1K3 is a parametric equivalent offering identical electrical and mechanical specifications to the T496D685K035AS. This part is actively manufactured, ROHS3 compliant, and supplied in Tape & Reel packaging. The T496D685K035ATE1K3 provides the highest current inventory availability at 1800 pieces.

Both substitute parts are suitable for direct replacement in applications requiring 6.8 µF, 35 V molded tantalum capacitors in 2917 package format. Selection between T496D685K035AT and T496D685K035ATE1K3 depends on packaging requirements and inventory availability for production volumes.

Frequently Asked Questions (FAQ)

Q: Can T496D685K035AT be used as a direct replacement for T496D685K035AS?

A: Yes. T496D685K035AT maintains identical electrical specifications (6.8 µF, ±10%, 35 V) and mechanical dimensions (2917 package, 0.287" L x 0.169" W x 0.122" H). Both parts feature fail-safe design with built-in fuse and operate across -55°C to 125°C. The primary difference is product status: T496D685K035AT is active while T496D685K035AS is obsolete.

Q: What is the difference between T496D685K035AT and T496D685K035ATE1K3?

A: Both parts are electrically and mechanically equivalent with identical capacitance, voltage rating, tolerance, and package specifications. The primary distinction is the suffix designation, which reflects different manufacturing or distribution configurations. Both are ROHS3 compliant, actively produced, and supplied in Tape & Reel packaging.

Q: Are there compliance differences between the main part and substitutes?

A: Yes. The T496D685K035AS is RoHS non-compliant, while both T496D685K035AT and T496D685K035ATE1K3 are ROHS3 compliant. All three parts maintain REACH Unaffected status. For applications requiring RoHS compliance, T496D685K035AT or T496D685K035ATE1K3 are required.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel packaging (TR) is a distribution format and does not affect electrical or mechanical performance. Both packaged and bulk formats of equivalent parts deliver identical capacitance, voltage rating, ESR, and operating characteristics.

Q: What is the significance of ESR specification in the substitute parts?

A: The substitute parts specify ESR (Equivalent Series Resistance) at 1.3 Ohm, while the main part does not provide this specification. ESR is a parasitic resistance that affects high-frequency performance and ripple current handling. The specified 1.3 Ohm ESR in substitute parts provides design engineers with precise impedance data for circuit analysis.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. T496D685K035AT and T496D685K035ATE1K3 are direct functional equivalents to T496D685K035AS across all critical parameters: capacitance, voltage rating, tolerance, package dimensions, mounting type, and operating temperature range. PCB layouts and circuit designs require no modification.