Equivalent & Substitute Parts for 1210J1K00331MXT

Part Overview

The 1210J1K00331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer, rated for 1000V (1kV) operation with X7R temperature coefficient characteristics. This component is classified as an Active product with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The part is supplied in Surface Mount, MLCC configuration with 1210 (3225 Metric) package dimensions. Equivalent and substitute parts are identified when they maintain functional compatibility across critical electrical and mechanical parameters while meeting the same regulatory and environmental standards.

Substiute Parts

1210J1K00331MXT

Knowles SyferIn Stock: 11371210J1K00331MXT Datasheet

Current PartRFQ

C1210C331JGGAC7800

KEMETIn Stock: 8046C1210C331JGGAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1210J1K00331MXT is determined by the following critical parameters:

• Capacitance Value: Must be 330 pF to maintain circuit function
• Package Footprint: Must be 1210 (3225 Metric) for PCB compatibility
• Mounting Type: Must be Surface Mount, MLCC
• Operating Temperature Range: Must support -55°C to 125°C minimum
• Regulatory Compliance: Must maintain ROHS3 compliance and MSL 1 rating
• Voltage Rating: Must meet or exceed 1000V (1kV) requirement

The substitute part C1210C331JGGAC7800 (KEMET) satisfies all substitution criteria. While this part features a C0G/NP0 temperature coefficient and higher voltage rating (2000V), these represent enhanced electrical characteristics that do not compromise compatibility. The identical capacitance value, package dimensions, mounting configuration, and regulatory certifications ensure direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The C1210C331JGGAC7800 (KEMET) is a qualified substitute for the 1210J1K00331MXT (Knowles Syfer) based on the following engineering criteria:

• Both parts maintain identical capacitance values and package footprints, ensuring direct PCB compatibility
• Both parts are ROHS3 compliant with MSL 1 rating, meeting identical regulatory and environmental requirements
• The substitute part exceeds the voltage specification (2000V versus 1000V), providing enhanced margin for high-voltage applications
• The substitute part features improved tolerance (±5% versus ±20%), delivering tighter capacitance accuracy
• The substitute part employs C0G/NP0 temperature coefficient, which provides superior temperature stability compared to X7R
• Physical dimensions remain compatible, with maximum thickness difference of 0.012" (0.30mm) within typical PCB assembly tolerances

Frequently Asked Questions (FAQ)

Q: Can the C1210C331JGGAC7800 be used as a direct replacement for the 1210J1K00331MXT?

A: Yes. Both parts share identical capacitance values (330 pF), package dimensions (1210 / 3225 Metric), and mounting configurations (Surface Mount, MLCC). Regulatory compliance and moisture sensitivity ratings are equivalent.

Q: What are the differences between these two parts?

A: The primary differences are temperature coefficient (X7R versus C0G/NP0), voltage rating (1000V versus 2000V), tolerance (±20% versus ±5%), and maximum thickness (0.079" versus 0.091"). These differences represent enhanced electrical performance in the substitute part.

Q: Will the increased thickness of the substitute part affect PCB assembly?

A: The thickness difference is 0.012" (0.30mm). This falls within standard PCB assembly tolerances and does not typically impact reflow soldering, component placement, or board-level clearances for 1210 package devices.

Q: Are both parts suitable for high-voltage applications?

A: The original part is rated for 1000V (1kV). The substitute part is rated for 2000V (2kV), making it suitable for applications requiring higher voltage margins or operating in elevated voltage environments.

Q: Do both parts meet the same environmental and regulatory standards?

A: Yes. Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity ratings, and support the same operating temperature range (-55°C to 125°C).