1206J0630331MXT Ceramic Capacitor 330pF 63V X7R Equivalent & Substitute Parts

Part Overview

The 1206J0630331MXT is a surface-mount multilayer ceramic capacitor (MLCC) manufactured by Knowles Syfer with a capacitance of 330 pF, rated voltage of 63V, and X7R temperature coefficient. This component is in active product status and widely used in general-purpose applications requiring stable capacitance across operating temperatures. Substitute parts are identified to provide design flexibility, improved voltage ratings, enhanced tolerance specifications, or alternative sourcing options while maintaining mechanical and electrical compatibility within the 1206 (3216 Metric) package footprint.

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±20%
Voltage Rating	63V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount, MLCC
Physical Dimensions	0.126" L × 0.063" W (3.20mm × 1.60mm)
Moisture Sensitivity Level	MSL 1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following criteria:

Mandatory Compatibility Parameters:

Capacitance value: 330 pF (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
Moisture Sensitivity Level: MSL 1 (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Allowable Variation Parameters:

Voltage Rating: May be equal to or greater than 63V
Tolerance: May be equal to or tighter than ±20%
Temperature Coefficient: May differ (X7R, C0G/NP0 acceptable)
Thickness: May vary within package constraints

All identified substitute parts meet the mandatory compatibility parameters. Variations in voltage rating, tolerance, and temperature coefficient represent either upgraded specifications or alternative dielectric materials suitable for the same application space.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Thickness (Max)	Product Status
1206J0630331MXT	Knowles Syfer	330 pF	±20%	63V	X7R	0.063" (1.60mm)	Active
CC1206KRX7R0BB331	YAGEO	330 pF	±10%	100V	X7R	0.037" (0.95mm)	Active
C1206C331J1GAC7800	KEMET	330 pF	±5%	100V	C0G, NP0	0.035" (0.88mm)	Active
C1206C331K1GAC7800	KEMET	330 pF	±10%	100V	C0G, NP0	0.035" (0.88mm)	Active
CC1206JRNPO0BN331	YAGEO	330 pF	±5%	100V	C0G, NP0	0.028" (0.70mm)	Active
CC1206JRNPOABN331	YAGEO	330 pF	±5%	200V	C0G, NP0	0.028" (0.70mm)	Active
KGM31BCG2A331FT	KYOCERA AVX	330 pF	±1%	100V	C0G, NP0	0.037" (0.94mm)	Active
KGM31BCG2A331KT	KYOCERA AVX	330 pF	±10%	100V	C0G, NP0	0.037" (0.94mm)	Active

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the original 1206J0630331MXT.

Voltage Rating Consideration: The original part is rated at 63V. All substitute options provide equal or higher voltage ratings (100V or 200V), which are electrically compatible with circuits designed for 63V operation. Higher voltage ratings do not degrade performance in lower-voltage applications.

Temperature Coefficient Selection: The original part uses X7R dielectric, which provides ±15% capacitance variation across the operating temperature range. Substitute parts using C0G/NP0 dielectric offer superior temperature stability (±30 ppm/°C typical), making them suitable for applications requiring tighter capacitance tolerance over temperature. X7R substitutes (CC1206KRX7R0BB331) maintain the original dielectric type.

Tolerance Specifications: The original ±20% tolerance can be replaced with tighter tolerances (±10%, ±5%, or ±1%) without functional degradation. Tighter tolerances provide improved circuit performance in precision applications.

Physical Dimensions: Substitute parts with reduced thickness (0.028" to 0.037" versus original 0.063") are mechanically compatible with 1206 package footprints and may offer advantages in space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating than the original 63V specification?

A: Yes. All substitute parts rated at 100V or 200V are electrically compatible with circuits designed for 63V operation. Higher voltage ratings provide additional safety margin and do not negatively impact circuit performance.

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

A: X7R dielectric exhibits ±15% capacitance change across the -55°C to 125°C operating range. C0G/NP0 dielectric provides superior stability with approximately ±30 ppm/°C temperature coefficient, resulting in minimal capacitance variation. C0G/NP0 is preferred for precision timing, filtering, and frequency-critical applications.

Q: Are all substitute parts mechanically compatible with the original 1206 footprint?

A: Yes. All substitute parts use the 1206 (3216 Metric) package with identical length (0.126") and width (0.063") dimensions. Thickness variations (0.028" to 0.063") are within standard 1206 package tolerances and do not affect PCB assembly compatibility.

Q: What does MSL 1 (Unlimited) moisture sensitivity mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts maintain MSL 1 rating, ensuring consistent handling requirements across substitutions.

Q: Can I substitute a ±5% tolerance part for the original ±20% tolerance part?

A: Yes. Tighter tolerance specifications (±5% or ±1%) are direct functional improvements over the original ±20% tolerance. They provide enhanced capacitance accuracy without introducing compatibility issues.

Q: Are all substitute parts ROHS3 compliant like the original?

A: Yes. All substitute parts listed maintain ROHS3 compliance, ensuring regulatory alignment and long-term supply chain viability.

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