TAC685K035P06 Equivalent & Substitute Parts

Part Overview

The TAC685K035P06 is a 6.8 µF molded tantalum capacitor rated at 35 V with ±10% tolerance, manufactured by Cornell Dubilier Electronics (CDE) in an axial through-hole package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The part operates across a temperature range of -55°C to 125°C and is suitable for general-purpose applications requiring axial-lead tantalum capacitors with these electrical specifications.

Substiute Parts

TAC685K035P06

Cornell Dubilier Electronics (CDE)In Stock: 887TAC685K035P06 Datasheet

Current PartRFQ

173D685X9035X

Vishay SpragueIn Stock: 1183173D685X9035X Datasheet

DirectRFQ

173D685X9035XW

Vishay SpragueIn Stock: 666173D685X9035XW Datasheet

DirectRFQ

T322D685K035AS

KEMETIn Stock: 968T322D685K035AS Datasheet

DirectRFQ

173D685X5035XW

Vishay SpragueIn Stock: 1256173D685X5035XW Datasheet

UpgradeRFQ

173D685X9035XE3

Vishay SpragueIn Stock: 929173D685X9035XE3 Datasheet

SimilarRFQ

T322D685K035AT

KEMETIn Stock: 939T322D685K035AT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAC685K035P06 is determined by strict equivalence across the following parameters: capacitance value (6.8 µF), voltage rating (35 V), package type (axial through-hole), physical dimensions (0.180" Dia x 0.420" L), operating temperature range (-55°C ~ 125°C), and general-purpose application classification.

Substitute parts are grouped into three categories:

Direct Substitutes maintain all electrical and mechanical parameters identical to the main part. These include 173D685X9035X, 173D685X9035XW, T322D685K035AS, and T322D685K035AT from Vishay Sprague and KEMET manufacturers. All direct substitutes share the same capacitance, voltage rating, tolerance (±10%), physical dimensions, and operating temperature specifications.

Upgrade Substitute (173D685X5035XW) provides improved tolerance performance at ±5% while maintaining all other electrical and mechanical specifications. This part is suitable for applications requiring tighter capacitance tolerance.

Similar Parts (173D685X9035XE3) match all electrical and mechanical parameters but differ in RoHS compliance status (ROHS3 Compliant versus RoHS non-compliant). This part is applicable in designs requiring RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Continuity): Select 173D685X9035X, 173D685X9035XW, T322D685K035AS, or T322D685K035AT. All four parts maintain identical electrical specifications (6.8 µF, 35 V, ±10% tolerance) and physical dimensions. These parts are in active production status, ensuring long-term availability. Selection between these options depends on packaging requirements: Vishay Sprague 173D series offers Tape & Box or Tape & Reel options, while KEMET T322 series provides bulk packaging.

For RoHS3 Compliance Requirements: Select T322D685K035AT or 173D685X9035XE3. Both parts maintain full electrical and mechanical equivalence to the original TAC685K035P06 while meeting ROHS3 compliance standards. T322D685K035AT is available in bulk packaging, while 173D685X9035XE3 is supplied in Tape & Box format.

For Improved Tolerance Performance: Select 173D685X5035XW when circuit design permits tighter capacitance tolerance. This part provides ±5% tolerance (versus ±10% of the original) while maintaining all other specifications. This upgrade is suitable for applications with stricter capacitance accuracy requirements.

Frequently Asked Questions (FAQ)

Q: Can I use 173D685X9035XW as a direct replacement for TAC685K035P06? A: Yes. The 173D685X9035XW is a direct electrical and mechanical equivalent. Both parts have 6.8 µF capacitance, 35 V rating, ±10% tolerance, identical physical dimensions (0.180" Dia x 0.420" L), and -55°C to 125°C operating range. The primary difference is packaging format (Tape & Reel versus original bulk format) and active production status.

Q: What is the difference between T322D685K035AS and T322D685K035AT? A: Both parts are electrically and mechanically identical with 6.8 µF, 35 V, ±10% tolerance, and 2.5Ohm ESR. The key difference is RoHS compliance: T322D685K035AS is RoHS non-compliant, while T322D685K035AT is ROHS3 compliant. Select T322D685K035AT for designs requiring RoHS3 certification.

Q: Is 173D685X5035XW compatible with the original TAC685K035P06 design? A: Yes, with the consideration that tolerance is improved to ±5%. This part is mechanically and electrically compatible in all respects except for tighter tolerance specification. Use this part when circuit performance benefits from improved capacitance accuracy.

Q: What packaging options are available for substitute parts? A: Substitute parts are available in three packaging formats: Tape & Box (173D685X9035X, 173D685X9035XE3), Tape & Reel (173D685X9035XW, 173D685X5035XW), and Bulk (T322D685K035AS, T322D685K035AT). Select based on production volume and assembly process requirements.

Q: Are all substitute parts suitable for the same operating temperature range? A: Yes. All substitute parts operate across the identical temperature range of -55°C to 125°C, matching the original TAC685K035P06 specification.

Q: Which substitute part offers the best long-term availability? A: All substitute parts listed are in active production status. Vishay Sprague 173D series and KEMET T322 series are established product lines with consistent availability. For critical applications, verify current inventory status with component distributors.