Equivalent & Substitute Parts for 1210Y0100104KCT

Part Overview

The 1210Y0100104KCT is a 0.1 µF ceramic capacitor manufactured by Knowles Syfer, rated at 10V with C0G/NP0 temperature coefficient and soft termination features. This part is classified as Active and is designed for surface mount applications in the 1210 (3225 Metric) package format. The component is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection.

Equivalent and substitute parts are identified based on matching capacitance value, package format, mounting type, and compliance certifications while allowing variations in voltage rating and temperature coefficient within acceptable engineering parameters for this product category.

Substiute Parts

1210Y0100104KCT

Knowles SyferIn Stock: 11911210Y0100104KCT Datasheet

Current PartRFQ

1210Y1000104KXT

Knowles SyferIn Stock: 50951210Y1000104KXT Datasheet

MFR RecommendedRFQ

C1210X104K1RAC7800

KEMETIn Stock: 10624C1210X104K1RAC7800 Datasheet

MFR RecommendedRFQ

C1210X104K5RAC7800

KEMETIn Stock: 7521C1210X104K5RAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1210Y0100104KCT are qualified based on the following criteria:

Mandatory Matching Parameters:

• Capacitance: 0.1 µF
• Tolerance: ±10%
• Package / Case: 1210 (3225 Metric)
• Mounting Type: Surface Mount, MLCC
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)

Allowable Variations:

• Voltage Rating: May be equal to or greater than the original 10V rating
• Temperature Coefficient: May differ from C0G/NP0 (X7R is acceptable for this application category)
• Manufacturer: Different manufacturers with equivalent specifications are acceptable
• Physical Dimensions: Minor variations within 1210 package tolerance are acceptable

The three qualified substitute parts meet all mandatory parameters while providing alternative voltage ratings and temperature coefficients suitable for boardflex sensitive applications.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are Active products with ROHS3 compliance and MSL 1 ratings, meeting the regulatory and environmental requirements of the original component.

1210Y1000104KXT (Knowles Syfer): This part maintains manufacturer continuity with the original 1210Y0100104KCT while providing a higher voltage rating of 100V. The temperature coefficient changes from C0G/NP0 to X7R. This substitute is suitable for applications where higher voltage margin is required without changing the component manufacturer or series.

C1210X104K1RAC7800 (KEMET): This part provides a 100V rating with X7R temperature coefficient and represents a cross-manufacturer substitute. Physical dimensions are within 1210 package tolerance (3.30mm x 2.60mm length and width, 1.05mm thickness). This option offers the highest voltage rating among the substitutes.

C1210X104K5RAC7800 (KEMET): This part provides a 50V rating with X7R temperature coefficient. Physical dimensions are within 1210 package tolerance (3.30mm x 2.60mm length and width, 0.88mm thickness). This option offers a moderate voltage increase over the original 10V rating.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating than the original 1210Y0100104KCT?

A: Yes. A higher voltage rating is acceptable for direct substitution. The original part is rated at 10V; all qualified substitutes are rated at 50V or 100V. Higher voltage ratings provide additional safety margin in the circuit without affecting the capacitance value or tolerance.

Q: What is the difference between C0G/NP0 and X7R temperature coefficients?

A: C0G/NP0 provides superior temperature stability with minimal capacitance change across the operating temperature range. X7R provides acceptable stability for general applications with slightly greater capacitance variation. Both temperature coefficients are suitable for the -55°C ~ 125°C operating range specified for this product category.

Q: Are there physical dimension differences between the main part and substitutes?

A: The main part 1210Y0100104KCT has dimensions of 3.20mm x 2.50mm length and width with 2.00mm maximum thickness. The KEMET substitutes (C1210X104K1RAC7800 and C1210X104K5RAC7800) have dimensions of 3.30mm x 2.60mm length and width with 1.05mm and 0.88mm thickness respectively. All parts conform to the 1210 (3225 Metric) package specification and are compatible with standard 1210 footprints.

Q: Can I substitute across manufacturers?

A: Yes. The KEMET parts C1210X104K1RAC7800 and C1210X104K5RAC7800 are qualified substitutes for the Knowles Syfer original. All parts meet identical electrical specifications for capacitance, tolerance, operating temperature, and compliance certifications.

Q: What does MSL 1 rating mean for this component?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life and moisture protection. This component does not require special moisture control during storage or handling, making it suitable for standard manufacturing environments.