1210J6300331MXT Equivalent & Substitute Parts

Part Overview

The 1210J6300331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer, rated for 630V with X7R temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) is designed for general purpose applications requiring stable capacitance across a wide operating temperature range of -55°C to 125°C. The part is currently active in production with full inventory availability. Substitute parts are identified when equivalent capacitance, voltage rating, package dimensions, and compliance certifications align with application requirements.

Substiute Parts

1210J6300331MXT

Knowles SyferIn Stock: 11111210J6300331MXT Datasheet

Current PartRFQ

C1210C331JBGAC7800

KEMETIn Stock: 1397C1210C331JBGAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1210J6300331MXT is determined by the following critical parameters:

• Capacitance Value: Must be 330 pF
• Voltage Rating: Must be 630V or higher
• Package Dimensions: Must be 1210 (3225 Metric) form factor
• Mounting Type: Must be Surface Mount, MLCC
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating
• Operating Temperature: Must support -55°C to 125°C range

The substitute part C1210C331JBGAC7800 meets all critical substitution criteria. While the temperature coefficient differs (C0G/NP0 versus X7R), both coefficients support the required operating temperature range and maintain voltage stability across the specified thermal envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the 1210J6300331MXT and C1210C331JBGAC7800 are active production parts with full ROHS3 compliance and MSL 1 ratings, making either suitable for applications requiring 330 pF at 630V in the 1210 package form factor.

The primary distinction is tolerance specification: the KEMET substitute offers ±5% tolerance compared to the Knowles Syfer ±20% tolerance. Applications requiring tighter capacitance accuracy will benefit from the C1210C331JBGAC7800 substitute.

The temperature coefficient difference (X7R versus C0G/NP0) reflects different dielectric materials. Both support the full -55°C to 125°C operating range. The C0G/NP0 coefficient of the KEMET part provides superior capacitance stability across temperature variations, while the X7R coefficient of the Knowles Syfer part provides adequate stability for general purpose applications.

The KEMET substitute features reduced maximum thickness (0.055" versus 0.079"), which may provide design flexibility for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can C1210C331JBGAC7800 directly replace 1210J6300331MXT in existing designs?

A: Yes. Both parts share identical capacitance (330 pF), voltage rating (630V), package dimensions (1210/3225 Metric), and operating temperature range (-55°C to 125°C). Pinout and mounting footprint are identical for surface mount MLCC components in this package class.

Q: What is the significance of the tolerance difference (±20% versus ±5%)?

A: Tolerance defines the acceptable capacitance variation from the nominal 330 pF value. The ±5% KEMET substitute provides tighter capacitance control, beneficial for precision filtering or tuning applications. The ±20% Knowles Syfer part is suitable for general purpose decoupling and coupling applications where exact capacitance is less critical.

Q: Why do the temperature coefficients differ?

A: X7R and C0G/NP0 represent different ceramic dielectric formulations. Both maintain stable capacitance across the -55°C to 125°C operating range. C0G/NP0 provides superior temperature stability with minimal capacitance drift, while X7R offers adequate stability for general applications with slightly higher capacitance variation across temperature extremes.

Q: Does the thickness difference affect compatibility?

A: The KEMET substitute is thinner (0.055" maximum versus 0.079" maximum). This reduced height is mechanically compatible with standard 1210 footprints and may provide advantages in space-constrained PCB designs. No design modifications are required.

Q: Are both parts compliant with current regulations?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.