Equivalent & Substitute Parts for 1206J0630123KXT

Part Overview

The 1206J0630123KXT is a 0.012 µF ceramic capacitor manufactured by Knowles Syfer, rated at 63V with X7R temperature coefficient in 1206 (3216 Metric) surface mount package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this product category.

Substiute Parts

1206J0630123KXT

Knowles SyferIn Stock: 8351206J0630123KXT Datasheet

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C1206C123K1RAC7800

KEMETIn Stock: 4780C1206C123K1RAC7800 Datasheet

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KGM31BR72A123KT

KYOCERA AVXIn Stock: 21840KGM31BR72A123KT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1206J0630123KXT are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Capacitance: 0.012 µF
• Tolerance: ±10%
• Temperature Coefficient: X7R
• Operating Temperature Range: -55°C ~ 125°C

Mechanical Parameters (Must Match):

• Package / Case: 1206 (3216 Metric)
• Mounting Type: Surface Mount, MLCC
• Size / Dimension: 0.126" L x 0.063" W (3.20mm x 1.60mm)

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Voltage Rating (Allowed Variation): Substitute parts may have equal or higher voltage ratings than the main part (63V). Rated voltage of 100V is acceptable as it maintains backward compatibility in circuits designed for 63V operation.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts C1206C123K1RAC7800 (KEMET) and KGM31BR72A123KT (KYOCERA AVX) meet the electrical and mechanical requirements for direct substitution with the 1206J0630123KXT. All three parts maintain Active product status and ROHS3 compliance with MSL 1 rating.

The substitute parts feature higher voltage ratings (100V versus 63V), which provides additional design margin in applications where the original 63V specification is sufficient. The reduced thickness of substitute parts (0.035" to 0.037" versus 0.063") may provide advantages in space-constrained PCB layouts while maintaining identical footprint compatibility.

Selection between substitute parts should be based on manufacturer availability, lead time, and cost considerations, as all three parts are electrically and mechanically interchangeable within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can C1206C123K1RAC7800 or KGM31BR72A123KT be used as direct replacements for 1206J0630123KXT?

A: Yes. Both substitute parts match the required capacitance (0.012 µF), tolerance (±10%), temperature coefficient (X7R), operating temperature range (-55°C ~ 125°C), package (1206), and compliance requirements (ROHS3, MSL 1). The higher voltage ratings (100V) are compatible with circuits designed for 63V operation.

Q: What is the significance of the voltage rating difference?

A: The substitute parts are rated at 100V compared to the original 63V rating. A higher voltage rating does not affect circuit operation when the applied voltage remains at or below 63V. The higher rating provides additional safety margin and is acceptable for direct substitution.

Q: Are there any physical compatibility concerns?

A: All three parts use the identical 1206 (3216 Metric) package with matching footprint dimensions (0.126" L x 0.063" W). The substitute parts have reduced thickness (0.035" to 0.037" versus 0.063"), which is compatible with standard PCB assembly processes and does not create mounting or clearance issues.

Q: Do all parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, classified as EAR99, and carry MSL 1 (Unlimited) moisture sensitivity rating. Compliance certifications are equivalent across all parts.

Q: What factors should determine which substitute part to select?

A: Selection should be based on manufacturer availability, inventory levels, lead time, and cost. From an engineering standpoint, all three parts are functionally equivalent and interchangeable within the specified electrical and mechanical parameters.