TAP685M025SCS Equivalent & Substitute Parts

Part Overview

The TAP685M025SCS is a 6.8 µF conformal coated tantalum capacitor rated at 25 V with radial through-hole mounting. This component is designed for general-purpose applications requiring reliable energy storage in compact form factors. The part is currently active in production and maintains full inventory availability. Substitute parts are identified to provide design flexibility when the primary part becomes unavailable or when design specifications permit tolerance or performance upgrades.

Substiute Parts

TAP685M025SCS

KYOCERA AVXIn Stock: 934TAP685M025SCS Datasheet

Current PartRFQ

TAP685K025SCS

KYOCERA AVXIn Stock: 1420TAP685K025SCS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TAP685M025SCS is determined by strict equivalence in the following critical parameters:

• Capacitance Value: Must remain 6.8 µF
• Voltage Rating: Must be 25 V or higher
• Mounting Type: Must be Through Hole radial configuration
• Physical Dimensions: Must match or fit within the same footprint (0.197" diameter, 0.354" max height, 0.098" lead spacing)
• Type: Must be Conformal Coated tantalum capacitor
• Operating Temperature Range: Must support -55°C to 125°C
• ESR: Must be 3.1 Ohm or lower

The TAP685K025SCS qualifies as a direct substitute because it maintains identical values for all critical parameters while offering an improved tolerance specification (±10% versus ±20%), which represents an upgrade path for applications requiring tighter capacitance control.

Parameter Comparison

Engineering Selection Recommendations

Both the TAP685M025SCS and TAP685K025SCS are active production components manufactured by KYOCERA AVX and maintain full ROHS3 compliance and REACH unaffected status. The primary distinction between these parts is the capacitance tolerance specification. The TAP685M025SCS with ±20% tolerance is suitable for applications where capacitance variation within this range does not impact circuit performance. The TAP685K025SCS with ±10% tolerance provides tighter capacitance control and is appropriate for designs requiring more precise capacitance values. Both parts share identical electrical performance characteristics, physical dimensions, and environmental ratings, making them interchangeable at the board level when tolerance requirements are satisfied.

Frequently Asked Questions (FAQ)

Q: Can TAP685K025SCS replace TAP685M025SCS in existing designs?

A: Yes. The TAP685K025SCS is a direct substitute with identical electrical and physical specifications. The only difference is improved tolerance (±10% versus ±20%), which represents an upgrade. No circuit modifications or board layout changes are required.

Q: What is the significance of the tolerance difference between these parts?

A: Tolerance defines the acceptable range of actual capacitance values around the nominal 6.8 µF specification. The ±20% tolerance of TAP685M025SCS allows actual values between 5.44 µF and 8.16 µF. The ±10% tolerance of TAP685K025SCS allows actual values between 6.12 µF and 7.48 µF. Applications sensitive to capacitance variation should use the ±10% part.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the same radial package with 0.197" diameter, 0.354" maximum seated height, and 0.098" lead spacing. They occupy identical board footprints and require no layout modifications for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both TAP685M025SCS and TAP685K025SCS are ROHS3 compliant and REACH unaffected, meeting identical environmental and regulatory requirements.

Q: What is the ESR specification and why is it important?

A: ESR (Equivalent Series Resistance) of 3.1 Ohm represents the internal resistance of the capacitor. Both parts share this specification, ensuring identical high-frequency performance and ripple current handling characteristics.