TAJS225K010A Equivalent & Substitute Parts

Part Overview

The TAJS225K010A is a 2.2 µF molded tantalum capacitor rated at 10 V in a 1206 (3216 Metric) surface mount package, manufactured by KYOCERA AVX. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are necessary when the primary part experiences supply constraints, inventory limitations, or when alternative packaging formats are required for manufacturing processes.

Substiute Parts

TAJS225K010A

KYOCERA AVXIn Stock: 851TAJS225K010A Datasheet

Current PartRFQ

TAJA225K010RNJ

KYOCERA AVXIn Stock: 3805TAJA225K010RNJ Datasheet

MFR RecommendedRFQ

TPSA225K010R1800

KYOCERA AVXIn Stock: 2692TPSA225K010R1800 Datasheet

MFR RecommendedRFQ

293D225X9010A2TE3

Vishay SpragueIn Stock: 2213293D225X9010A2TE3 Datasheet

MFR RecommendedRFQ

T491A225K010AH

KEMETIn Stock: 2807T491A225K010AH Datasheet

MFR RecommendedRFQ

T491A225K010AT

KEMETIn Stock: 2026T491A225K010AT Datasheet

MFR RecommendedRFQ

T494A225K010AT

KEMETIn Stock: 6427T494A225K010AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TAJS225K010A is determined by strict electrical and mechanical parameter matching:

Core Substitution Criteria:

• Capacitance: 2.2 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating: 10 V (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Variable Parameters (Non-Limiting):

• ESR (Equivalent Series Resistance): Varies by manufacturer and series
• Packaging Format: Cut Tape (CT), Digi-Reel®, or Tape & Reel (TR)
• Manufacturer: KYOCERA AVX, KEMET, Vishay Sprague
• Series Designation: TAJ, TAJA, TPS, T491, T494, 293D

All identified substitute parts meet the core substitution criteria and are electrically and mechanically interchangeable with the TAJS225K010A.

Parameter Comparison

Engineering Selection Recommendations

ROHS3 Compliant Substitutes (Preferred for Regulated Applications):

• TAJA225K010RNJ (KYOCERA AVX): Highest inventory availability at 3700 pcs. Same manufacturer as primary part. Suitable for applications requiring ROHS3 compliance.
• TPSA225K010R1800 (KYOCERA AVX): ROHS3 compliant with lowest ESR at 1.8 Ohm. Tape & Reel packaging format.
• 293D225X9010A2TE3 (Vishay Sprague): ROHS3 compliant alternative from established manufacturer. ESR of 6.3 Ohm.
• T491A225K010AT (KEMET): ROHS3 compliant with Cut Tape & Digi-Reel® packaging. ESR of 8 Ohm.
• T494A225K010AT (KEMET): ROHS3 compliant with highest inventory at 6328 pcs. ESR of 6 Ohm. Tape & Reel format.

Non-Compliant Alternative:

• T491A225K010AH (KEMET): RoHS non-compliant. Use only in applications where RoHS compliance is not required.

Packaging Considerations:

• Cut Tape (CT) & Digi-Reel® format: TAJA225K010RNJ, T491A225K010AT
• Tape & Reel (TR) format: TPSA225K010R1800, 293D225X9010A2TE3, T491A225K010AH, T494A225K010AT

Frequently Asked Questions (FAQ)

Q: Can I substitute TAJS225K010A with any of the listed parts? A: All listed parts are electrically and mechanically interchangeable based on core parameters: 2.2 µF capacitance, ±10% tolerance, 10 V rating, 1206 package, and -55°C to 125°C operating range. Selection depends on compliance requirements and packaging format availability.

Q: What is the difference between the ROHS3 compliant and non-compliant options? A: T491A225K010AH is RoHS non-compliant and must not be used in applications subject to RoHS regulations. All other substitutes are ROHS3 compliant and suitable for regulated markets.

Q: Does ESR variation affect interchangeability? A: ESR values range from 1.8 Ohm to 12 Ohm across the part family. All values fall within acceptable operating parameters for this capacitor category. ESR selection should be based on specific circuit requirements for ripple current handling and thermal performance.

Q: What packaging formats are available? A: Substitutes are available in Cut Tape (CT) & Digi-Reel® format or Tape & Reel (TR) format. Selection depends on manufacturing equipment compatibility and procurement workflow.

Q: Are all substitutes from the same manufacturer? A: No. Substitutes are sourced from KYOCERA AVX, KEMET, and Vishay Sprague. All manufacturers produce equivalent molded tantalum capacitors meeting the specified electrical and mechanical parameters.

Q: What is the height difference between the main part and substitutes? A: TAJS225K010A has a maximum seated height of 0.047" (1.20mm). All substitutes have a maximum seated height of 0.071" (1.80mm). Verify PCB layout clearance before substitution.