TAP225M010SCS Equivalent & Substitute Parts

Part Overview

The TAP225M010SCS is a 2.2 µF conformal coated tantalum capacitor rated at 10 V with ±20% tolerance, manufactured by KYOCERA AVX in the TAP series. This radial through-hole component is designed for general-purpose applications requiring reliable energy storage in compact form factors. The part is active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when design requirements allow for tolerance upgrades, voltage rating increases, or when inventory optimization is necessary while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Voltage Rating	10 V
Tolerance	±20%
ESR (Equivalent Series Resistance)	13 Ohm
Type	Conformal Coated
Mounting Type	Through Hole
Package / Case	Radial
Size / Dimension	0.177" Dia (4.50 mm)
Height - Seated (Max)	0.276" (7.00 mm)
Lead Spacing	0.098" (2.50 mm)
Operating Temperature	-55°C ~ 125°C
Lifetime @ Temp.	1000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TAP225M010SCS is determined by three primary criteria:

Capacitance: All substitute parts maintain 2.2 µF capacitance. This parameter is non-negotiable for functional equivalence.

Voltage Rating: Substitute parts are available at 10 V, 16 V, 20 V, and 25 V. Higher voltage ratings are direct substitutes when circuit design permits, as they provide superior voltage margin and reduced stress on the component. The original 10 V rating is the minimum requirement.

Tolerance: The original part carries ±20% tolerance (M-code). Substitute parts with ±10% tolerance (K-code) provide tighter capacitance accuracy. Both tolerance grades are electrically compatible; the selection depends on circuit tolerance requirements.

Mechanical Compatibility: All substitute parts share identical physical dimensions (0.177" diameter, 0.276" height, 0.098" lead spacing), mounting type (through-hole radial), and conformal coating. They are mechanically interchangeable on PCBs designed for the TAP series.

Parameter Comparison

Part Number	Capacitance	Voltage Rating	Tolerance	ESR	Size / Dimension	Height (Max)	Lead Spacing	Inventory
TAP225M010SCS	2.2 µF	10 V	±20%	13 Ohm	0.177" (4.50 mm)	0.276" (7.00 mm)	0.098" (2.50 mm)	975 Pcs
TAP225K010SCS	2.2 µF	10 V	±10%	13 Ohm	0.177" (4.50 mm)	0.276" (7.00 mm)	0.098" (2.50 mm)	1568 Pcs
TAP225K016SCS	2.2 µF	16 V	±10%	8 Ohm	0.177" (4.50 mm)	0.276" (7.00 mm)	0.098" (2.50 mm)	1864 Pcs
TAP225K020SCS	2.2 µF	20 V	±10%	7 Ohm	0.177" (4.50 mm)	0.276" (7.00 mm)	0.098" (2.50 mm)	2100 Pcs
TAP225K025SCS	2.2 µF	25 V	±10%	6 Ohm	0.177" (4.50 mm)	0.276" (7.00 mm)	0.098" (2.50 mm)	6489 Pcs
TAP225M016SCS	2.2 µF	16 V	±20%	8 Ohm	0.177" (4.50 mm)	0.276" (7.00 mm)	0.098" (2.50 mm)	4106 Pcs
TAP225M025SCS	2.2 µF	25 V	±20%	6 Ohm	0.177" (4.50 mm)	0.276" (7.00 mm)	0.098" (2.50 mm)	2320 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original TAP225M010SCS. Selection among substitutes is based on circuit requirements:

For tolerance-critical applications: TAP225K-series parts (±10% tolerance) provide superior capacitance accuracy compared to the M-series (±20% tolerance). These are direct upgrades when tighter tolerance specifications are required.

For voltage margin optimization: Parts rated at 16 V, 20 V, or 25 V reduce component stress and extend operational life in circuits where the 10 V minimum is met but higher margins are beneficial. Higher voltage ratings also reduce ESR, improving transient response characteristics.

For inventory and lead-time management: TAP225K025SCS offers the highest stock availability (6489 Pcs) while maintaining full electrical and mechanical compatibility. TAP225M025SCS provides an alternative with ±20% tolerance and substantial inventory (2320 Pcs).

All parts share identical mechanical footprints, operating temperature ranges (-55°C to 125°C), and conformal coating specifications, ensuring seamless PCB integration.

Frequently Asked Questions (FAQ)

Q: Can TAP225K010SCS replace TAP225M010SCS directly?

A: Yes. Both parts are rated at 10 V with 2.2 µF capacitance and identical physical dimensions. The K-series offers ±10% tolerance versus the M-series ±20% tolerance, making it a direct upgrade for applications requiring tighter capacitance accuracy.

Q: What is the benefit of using a higher voltage-rated substitute like TAP225K025SCS?

A: Higher voltage ratings reduce operating stress on the capacitor, extending component life and improving reliability margins. The 25 V rated part also exhibits lower ESR (6 Ohm versus 13 Ohm), which improves transient response and reduces heat generation in high-frequency applications.

Q: Are all substitute parts mechanically interchangeable on existing PCBs?

A: Yes. All parts in this substitution group share identical radial through-hole dimensions (0.177" diameter, 0.276" maximum height, 0.098" lead spacing), conformal coating type, and mounting specifications. No PCB redesign is required.

Q: Does tolerance selection affect circuit performance?

A: Tolerance affects capacitance accuracy. The ±20% M-series allows capacitance variation of ±0.44 µF from the nominal 2.2 µF value. The ±10% K-series limits variation to ±0.22 µF. Selection depends on circuit sensitivity to capacitance drift and filtering requirements.

Q: What is the significance of ESR differences among substitutes?

A: ESR (Equivalent Series Resistance) affects ripple current handling and transient response. Lower ESR values (6-8 Ohm in higher voltage ratings) reduce heat dissipation and improve performance in switching applications. The original 13 Ohm ESR is suitable for general-purpose filtering; lower ESR substitutes enhance performance in demanding applications.

Q: Are all parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the original TAP225M010SCS.

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