TAP685K025SCS Equivalent & Substitute Parts

Part Overview

The TAP685K025SCS is a 6.8 µF conformal coated tantalum capacitor rated at 25 V with radial through-hole mounting. Manufactured by KYOCERA AVX, this component is classified as Active product status and is designed for general-purpose applications requiring reliable energy storage in compact form factors. Substitute parts may be required due to inventory constraints, supply chain disruptions, or specific application requirements where alternative electrical or mechanical characteristics are acceptable within design parameters.

Substiute Parts

TAP685K025SCS

KYOCERA AVXIn Stock: 1420TAP685K025SCS Datasheet

Current PartRFQ

TAP685K006SCS

KYOCERA AVXIn Stock: 1510TAP685K006SCS Datasheet

MFR RecommendedRFQ

T350E685K025AT

KEMETIn Stock: 2022T350E685K025AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAP685K025SCS is determined by the following critical parameters:

Primary Substitution Criteria (Must Match):

• Capacitance: 6.8 µF
• Tolerance: ±10%
• Type: Conformal Coated
• Mounting Type: Through Hole
• Package / Case: Radial
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant

Secondary Substitution Criteria (May Vary Within Limits):

• Voltage - Rated: 25 V or higher
• ESR: 3.1 Ohm or lower
• Physical dimensions: Minor variations acceptable if PCB layout permits

Two substitute parts meet these criteria with specific trade-offs documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

T350E685K025AT (KEMET) - Direct Equivalent: This substitute provides identical electrical specifications (6.8 µF, 25 V, 3.1 Ohm ESR) with full RoHS3 compliance and Active product status. Physical dimensions are comparable with minor variations in diameter (5.50mm vs 5.00mm) and lead spacing (2.54mm vs 2.50mm). This part is suitable for direct substitution in applications where PCB layout accommodates the slightly larger form factor.

TAP685K006SCS (KYOCERA AVX) - Voltage-Reduced Substitute: This part maintains identical capacitance (6.8 µF), tolerance (±10%), and conformal coating type with full RoHS3 compliance and Active product status. The rated voltage is reduced to 6.3 V with increased ESR of 8 Ohm. This substitute is applicable only in circuits where the operating voltage does not exceed 6.3 V and where the higher ESR does not compromise circuit performance. The smaller physical footprint (4.50mm diameter, 7.00mm height) may provide PCB layout advantages.

Frequently Asked Questions (FAQ)

Q: Can T350E685K025AT replace TAP685K025SCS in all applications? A: T350E685K025AT provides identical electrical performance (6.8 µF, 25 V, 3.1 Ohm ESR) with equivalent RoHS3 compliance. Substitution is valid provided PCB layout accommodates the slightly larger diameter (5.50mm vs 5.00mm) and lead spacing (2.54mm vs 2.54mm standard).

Q: Under what conditions is TAP685K006SCS a valid substitute? A: TAP685K006SCS is valid only when circuit operating voltage is 6.3 V or lower. The reduced voltage rating and increased ESR (8 Ohm vs 3.1 Ohm) make this substitute unsuitable for 25 V applications. Verify circuit requirements before selection.

Q: What are the physical dimension differences between these parts? A: TAP685K025SCS measures 5.00mm diameter × 9.00mm height. T350E685K025AT measures 5.50mm diameter × 8.90mm height. TAP685K006SCS measures 4.50mm diameter × 7.00mm height. Confirm PCB layout clearances before substitution.

Q: Are all three parts RoHS3 compliant? A: Yes. TAP685K025SCS, T350E685K025AT, and TAP685K006SCS are all ROHS3 Compliant with Active product status.

Q: What is the significance of ESR differences? A: ESR affects circuit performance in high-frequency applications and ripple current handling. TAP685K025SCS and T350E685K025AT both specify 3.1 Ohm ESR. TAP685K006SCS specifies 8 Ohm ESR, which may impact performance in noise-sensitive or high-ripple-current circuits.