KEMET C0402C331M8RAC7867 Equivalent & Substitute Parts

Part Overview

The KEMET C0402C331M8RAC7867 is a 330 pF ceramic capacitor in 0402 (1005 Metric) surface mount package, rated at 10V with X7R temperature coefficient and ±20% tolerance. This component is classified as Active product status and is designed for bypass and decoupling applications in electronic circuits. The part is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance can be achieved through alternative tolerance, voltage rating, or temperature coefficient specifications while maintaining the same capacitance value, package size, and mounting technology. The availability of substitute parts ensures design flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	C0402C331M8RAC7867
Manufacturer	KEMET
Capacitance	330 pF
Tolerance	±20%
Voltage - Rated	10V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Package / Case	0402 (1005 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)
Thickness (Max)	0.022" (0.55mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the C0402C331M8RAC7867 are determined by the following criteria:

Fixed Parameters (Non-Substitutable):

Capacitance: 330 pF (must remain constant)
Package / Case: 0402 (1005 Metric) (physical compatibility requirement)
Mounting Type: Surface Mount, MLCC (assembly compatibility requirement)
Size / Dimension: 0.039" L x 0.020" W (1.00mm x 0.50mm) (PCB layout requirement)
Thickness (Max): 0.022" (0.55mm) (clearance requirement)
Operating Temperature Range: -55°C ~ 125°C (thermal performance requirement)
RoHS Status: ROHS3 Compliant (regulatory requirement)
Moisture Sensitivity Level (MSL): 1 (Unlimited) (handling requirement)

Variable Parameters (Substitutable):

Tolerance: ±20%, ±10%, ±5% (tighter tolerances are acceptable upgrades)
Voltage - Rated: 10V, 16V, 25V, 50V, 100V (higher voltage ratings are acceptable upgrades)
Temperature Coefficient: X7R, C0G/NP0 (different dielectric materials with same temperature range)
Series: SMD Comm X7R, SMD Comm C0G (product line variation)

Substitution logic: A part qualifies as a substitute when it maintains all fixed parameters while offering equal or improved performance in variable parameters. Higher voltage ratings and tighter tolerances represent upgrades. Temperature coefficient changes (X7R to C0G/NP0) represent functional improvements with different application characteristics.

Parameter Comparison

Manufacturer Part Number	Capacitance	Tolerance	Voltage - Rated	Temperature Coefficient	Series	Inventory (Pcs)
C0402C331M8RAC7867	330 pF	±20%	10V	X7R	SMD Comm X7R	814
C0402C331K8RAC7867	330 pF	±10%	10V	X7R	SMD Comm X7R	10400
C0402C331K4RAC7867	330 pF	±10%	16V	X7R	SMD Comm X7R	44125
C0402C331K3RAC7867	330 pF	±10%	25V	X7R	SMD Comm X7R	11171
C0402C331J5RAC7867	330 pF	±5%	50V	X7R	SMD Comm X7R	13912
C0402C331K5RAC7867	330 pF	±10%	50V	X7R	SMD Comm X7R	33589
C0402C331J4GAC7867	330 pF	±5%	16V	C0G, NP0	SMD Comm C0G	20677
C0402C331J3GAC7867	330 pF	±5%	25V	C0G, NP0	SMD Comm C0G	65351
C0402C331J5GAC7867	330 pF	±5%	50V	C0G, NP0	SMD Comm C0G	227580
C0402C331K5GAC7867	330 pF	±10%	50V	C0G, NP0	SMD Comm C0G	69654
C0402C331J1GAC7867	330 pF	±5%	100V	C0G, NP0	SMD Comm C0G	20139

Engineering Selection Recommendations

Direct Substitution (Same Voltage Rating):

C0402C331K8RAC7867 is the direct substitute for C0402C331M8RAC7867 at the 10V rating. This part maintains identical voltage and temperature coefficient specifications while improving tolerance from ±20% to ±10%. Both parts are Active status, RoHS3 compliant, and MSL 1 rated. Inventory availability is significantly higher (10400 pcs vs. 814 pcs).

Upgraded Substitution (Higher Voltage Rating, X7R Dielectric):

Parts C0402C331K4RAC7867 (16V), C0402C331K3RAC7867 (25V), C0402C331K5RAC7867 (50V), and C0402C331J5RAC7867 (50V) maintain X7R temperature coefficient while providing higher voltage ratings. These are suitable for applications where the circuit voltage may exceed 10V or where design margin is required. All parts are Active status and fully compliant with RoHS3 and MSL 1 requirements.

Upgraded Substitution (Higher Voltage Rating, C0G/NP0 Dielectric):

Parts C0402C331J4GAC7867 (16V), C0402C331J3GAC7867 (25V), C0402C331J5GAC7867 (50V), C0402C331K5GAC7867 (50V), and C0402C331J1GAC7867 (100V) provide C0G/NP0 temperature coefficient with tighter tolerance (±5% or ±10%) and higher voltage ratings. C0G/NP0 dielectric offers superior frequency stability and lower distortion compared to X7R. These parts are suitable for precision applications and general-purpose circuits requiring stable capacitance across temperature and frequency ranges. All parts are Active status and fully compliant with RoHS3 and MSL 1 requirements.

Selection Basis:

All substitute parts share identical package dimensions, mounting technology, operating temperature range, and regulatory compliance status. Selection among substitutes depends on circuit voltage requirements, tolerance specifications, and dielectric performance characteristics. Higher voltage ratings provide design margin without affecting physical compatibility or assembly processes.

Frequently Asked Questions (FAQ)

Q: Can C0402C331K8RAC7867 replace C0402C331M8RAC7867 in my design?

A: Yes. C0402C331K8RAC7867 is a direct substitute with identical voltage rating (10V) and temperature coefficient (X7R). The only difference is improved tolerance (±10% vs. ±20%), which is a functional upgrade. Physical dimensions, package type, and mounting compatibility are identical.

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

A: X7R dielectric provides ±15% capacitance change across the -55°C to 125°C temperature range and is optimized for bypass and decoupling applications. C0G/NP0 dielectric provides 0±30 ppm/°C stability and is optimized for precision and general-purpose applications. Both maintain the same operating temperature range and are suitable for the 0402 package.

Q: Can I use a 50V rated capacitor in a 10V circuit?

A: Yes. Higher voltage ratings are acceptable substitutes. A 50V capacitor will function correctly in a 10V circuit. The higher voltage rating provides additional design margin and does not affect circuit performance. Physical dimensions and mounting compatibility remain unchanged.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's regulatory status.

Q: What tolerance should I select for my application?

A: Select tolerance based on circuit requirements. ±20% tolerance is suitable for general bypass and decoupling applications. ±10% tolerance provides improved performance for applications with tighter capacitance specifications. ±5% tolerance is recommended for precision circuits requiring stable capacitance values.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All substitute parts use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W, 1.00mm x 0.50mm) and maximum thickness (0.022", 0.55mm). PCB footprints and assembly processes are identical.

Q: Which substitute part has the highest inventory availability?

A: C0402C331J5GAC7867 (330 pF ±5% 50V C0G/NP0) has the highest inventory with 227,580 pcs in stock, followed by C0402C331K5GAC7867 (330 pF ±10% 50V C0G/NP0) with 69,654 pcs.

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