TAP685K020SCS Equivalent & Substitute Parts

Part Overview

The TAP685K020SCS is a 6.8 µF conformal coated tantalum capacitor rated at 20 V with radial through-hole mounting. Manufactured by KYOCERA AVX, this component is classified as Active product status and is ROHS3 compliant. Alternative models may be required due to application voltage requirements, inventory availability, or specific ESR performance needs within the same capacitance and tolerance specifications.

Substiute Parts

TAP685K020SCS

KYOCERA AVXIn Stock: 965TAP685K020SCS Datasheet

Current PartRFQ

TAP685K025SCS

KYOCERA AVXIn Stock: 1420TAP685K025SCS Datasheet

UpgradeRFQ

TAP685K006SCS

KYOCERA AVXIn Stock: 1510TAP685K006SCS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TAP685K020SCS is determined by the following criteria:

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):

• Voltage - Rated: Can be equal or higher
• ESR: May vary based on voltage rating
• Physical dimensions: May vary based on voltage rating

The substitute parts listed maintain identical capacitance, tolerance, coating type, and temperature specifications while offering alternative voltage ratings and corresponding ESR characteristics.

Parameter Comparison

Engineering Selection Recommendations

TAP685K025SCS (Upgrade Option): This part maintains identical physical dimensions and lead spacing to the TAP685K020SCS while providing a higher voltage rating of 25 V. The ESR is reduced to 3.1 Ohm, offering improved performance characteristics. All compliance certifications remain equivalent. This option is suitable for applications requiring higher voltage margin or improved ESR performance within the same form factor.

TAP685K006SCS (MFR Recommended Option): This part is recommended by the manufacturer for applications with lower voltage requirements (6.3 V). Physical dimensions are reduced (0.177" diameter, 0.276" height), resulting in a smaller footprint. ESR increases to 8 Ohm due to the lower voltage rating. All compliance certifications remain equivalent. This option is suitable for space-constrained applications operating at lower voltages.

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can TAP685K025SCS replace TAP685K020SCS in all applications? A: TAP685K025SCS maintains identical capacitance, tolerance, temperature range, and physical dimensions. The higher voltage rating (25 V vs 20 V) and lower ESR (3.1 Ohm vs 3.6 Ohm) make it suitable for direct replacement in applications operating at or below 20 V.

Q: What are the physical differences between TAP685K020SCS and TAP685K006SCS? A: TAP685K006SCS has a smaller diameter (0.177" vs 0.197") and reduced height (0.276" vs 0.354"). Lead spacing remains identical at 0.098". These dimensional changes result from the lower voltage rating (6.3 V vs 20 V).

Q: Is TAP685K006SCS suitable for 20 V applications? A: No. TAP685K006SCS is rated for 6.3 V maximum. Using it in a 20 V application exceeds its voltage rating and will result in component failure.

Q: Do all substitute parts have the same temperature operating range? A: Yes. All listed parts operate across -55°C to 125°C with 1000 hours lifetime at 85°C.

Q: Are there compliance differences between the main part and substitutes? A: No. All parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 with identical HTSUS codes.

Q: Which substitute offers the best ESR performance? A: TAP685K025SCS provides the lowest ESR at 3.1 Ohm, compared to 3.6 Ohm for TAP685K020SCS and 8 Ohm for TAP685K006SCS.