1210J5000331MXT Equivalent & Substitute Parts

Part Overview

The 1210J5000331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer, rated for 500V 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 ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent capacitance and voltage ratings are available from alternative manufacturers, enabling supply chain flexibility and inventory optimization.

Substiute Parts

1210J5000331MXT

Knowles SyferIn Stock: 8231210J5000331MXT Datasheet

Current PartRFQ

C1210C331JBGAC7800

KEMETIn Stock: 1397C1210C331JBGAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1210J5000331MXT is determined by the following critical parameters:

• Capacitance Value: Must be 330 pF
• Package / Case: Must be 1210 (3225 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount, MLCC
• Voltage Rating: Must be equal to or greater than 500V
• Temperature Coefficient: X7R or equivalent stable dielectric (C0G/NP0 acceptable for general purpose applications)
• Operating Temperature Range: Must support -55°C to 125°C
• Compliance: RoHS3 and REACH compliance required

The identified substitute part meets all mechanical compatibility requirements and exceeds the voltage specification, providing enhanced performance margin in high-voltage applications.

Parameter Comparison

Engineering Selection Recommendations

The C1210C331JBGAC7800 (KEMET) is a qualified substitute for the 1210J5000331MXT (Knowles Syfer) based on the following engineering criteria:

• Both parts maintain identical capacitance value (330 pF) and package form factor (1210/3225 Metric)
• The KEMET substitute provides higher voltage rating (630V vs 500V), offering increased safety margin in circuit design
• Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements
• Operating temperature range is identical (-55°C to 125°C), ensuring thermal compatibility
• The KEMET part features tighter tolerance (±5% vs ±20%), providing improved capacitance stability
• C0G/NP0 temperature coefficient offers superior temperature stability compared to X7R, beneficial for precision applications
• Reduced thickness (1.40mm vs 2.00mm) on the KEMET part may provide PCB layout advantages in space-constrained designs

Frequently Asked Questions (FAQ)

Q: Can the C1210C331JBGAC7800 be used as a direct replacement for the 1210J5000331MXT?

A: Yes. Both parts share identical capacitance (330 pF), package form factor (1210/3225 Metric), and operating temperature range (-55°C to 125°C). The KEMET substitute meets or exceeds all electrical and mechanical requirements of the original part.

Q: What are the differences between X7R and C0G/NP0 temperature coefficients?

A: X7R dielectrics provide ±15% capacitance variation across the operating temperature range. C0G/NP0 dielectrics provide superior stability with minimal capacitance drift across temperature. For general purpose applications, both are functionally compatible; C0G/NP0 is preferred when temperature stability is critical.

Q: Does the higher voltage rating (630V vs 500V) affect circuit compatibility?

A: No. A component rated for higher voltage can be used in circuits designed for lower voltage operation. The 630V rating on the KEMET part provides additional safety margin and does not negatively impact circuit performance.

Q: Are there physical installation differences between these parts?

A: Both parts use identical 1210 (3225 Metric) package dimensions (0.126" L x 0.098" W). The KEMET part is thinner (1.40mm vs 2.00mm), which may provide advantages in compact PCB designs but does not affect solderability or mechanical mounting.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 1210J5000331MXT and C1210C331JBGAC7800 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings.