1206J6300331MXT Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1206J6300331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer, rated for 630V with X7R temperature coefficient in 1206 (3216 Metric) surface mount package. This component is classified as Active and suitable for general purpose applications requiring high voltage ceramic capacitance. Substitute parts are identified to address inventory availability, tolerance requirements, or alternative manufacturer sourcing while maintaining electrical and mechanical compatibility within the 1206 package form factor.

Substiute Parts

1206J6300331MXT

Knowles SyferIn Stock: 8721206J6300331MXT Datasheet

Current PartRFQ

CC1206KKX7RZBB331

YAGEOIn Stock: 6996CC1206KKX7RZBB331 Datasheet

UpgradeRFQ

C1206C331JBGAC7800

KEMETIn Stock: 9191C1206C331JBGAC7800 Datasheet

MFR RecommendedRFQ

C3216C0G2J331K060AA

TDK CorporationIn Stock: 9362C3216C0G2J331K060AA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1206J6300331MXT is determined by the following mandatory parameters:

• Capacitance value: 330 pF (exact match required)
• Voltage rating: 630V (minimum, equal or higher acceptable)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Mounting type: Surface Mount, MLCC (exact match required)
• Operating temperature range: -55°C ~ 125°C (minimum coverage required)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)
• Moisture sensitivity: MSL 1 (Unlimited) (handling requirement)

Temperature coefficient (X7R or C0G/NP0) and tolerance (±20%, ±10%, ±5%) are secondary parameters that may vary between substitutes while maintaining functional compatibility. Substitute parts meeting all mandatory parameters are electrically and mechanically interchangeable in the 1206 package footprint.

Parameter Comparison

Engineering Selection Recommendations

All four parts meet the mandatory electrical and mechanical substitution criteria for the 1206 package footprint and 330 pF / 630V specification.

CC1206KKX7RZBB331 (YAGEO) maintains X7R temperature coefficient matching the original part while offering improved tolerance (±10% vs ±20%) and reduced thickness (0.057" vs 0.063"). Product status is Active with high inventory availability (6924 pcs).

C1206C331JBGAC7800 (KEMET) provides the tightest tolerance (±5%) with C0G/NP0 temperature coefficient, which offers superior temperature stability and lower capacitance drift. Product status is Active with high inventory (9104 pcs). Thickness is 0.069", within acceptable PCB assembly clearance.

C3216C0G2J331K060AA (TDK) offers C0G/NP0 temperature coefficient with ±10% tolerance and the thinnest profile (0.030"). However, product status is listed as Not For New Designs, indicating this part is in end-of-life phase and should not be selected for new circuit designs.

For new designs, CC1206KKX7RZBB331 or C1206C331JBGAC7800 are recommended based on Active product status and current manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can I use C3216C0G2J331K060AA as a substitute despite "Not For New Designs" status?

A: C3216C0G2J331K060AA meets all mandatory electrical and mechanical parameters for direct substitution in the 1206 package. However, the "Not For New Designs" status indicates the manufacturer has discontinued active development and support for this part. For new circuit designs, select CC1206KKX7RZBB331 or C1206C331JBGAC7800 to ensure long-term availability and manufacturer support.

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

A: Both temperature coefficients are provided in the input data. X7R (used in 1206J6300331MXT and CC1206KKX7RZBB331) exhibits capacitance variation across temperature. C0G/NP0 (used in C1206C331JBGAC7800 and C3216C0G2J331K060AA) provides superior temperature stability with minimal capacitance drift. Selection depends on circuit requirements for temperature compensation.

Q: Are there thickness constraints for PCB assembly?

A: All substitute parts fit within the 1206 (3216 Metric) package specification. Thickness varies from 0.030" (TDK) to 0.069" (KEMET). Verify PCB assembly equipment clearance specifications if components are placed adjacent to tall components or in confined areas.

Q: Does tolerance affect circuit performance?

A: Tolerance specifications (±20%, ±10%, ±5%) define the acceptable capacitance range at nominal conditions. Tighter tolerance parts (±5% KEMET, ±10% YAGEO) provide more precise capacitance values compared to the original ±20% specification. Select based on circuit tuning requirements and frequency response sensitivity.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed parts are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting regulatory requirements for lead-free assembly and unrestricted storage conditions.