KEMET C0402C331M4RAC7867 Ceramic Capacitor 330pF 16V X7R 0402 Equivalent & Substitute Parts

Part Overview

The KEMET C0402C331M4RAC7867 is a surface-mount multilayer ceramic capacitor (MLCC) with 330 pF capacitance, 16V rated voltage, and X7R temperature coefficient in 0402 (1005 Metric) package. This component is classified as Active and suitable for bypass and decoupling applications in electronic circuits. Substitute parts are identified based on matching capacitance value, package size, and mechanical compatibility while allowing variations in voltage rating, tolerance, and temperature coefficient within acceptable engineering parameters.

Key Parameters

Parameter	Value
Manufacturer Part Number	C0402C331M4RAC7867
Manufacturer	KEMET
Capacitance	330 pF
Tolerance	±20%
Voltage - Rated	16V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Package / Case	0402 (1005 Metric)
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)
Thickness (Max)	0.022" (0.55mm)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the C0402C331M4RAC7867 are classified into two categories based on substitution compatibility:

Upgrade Substitutes maintain the same 330 pF capacitance and 0402 package while offering improved electrical characteristics:

Enhanced voltage ratings (25V, 50V) provide additional design margin
Improved tolerance specifications (±5%, ±10%) compared to the original ±20%
Alternative temperature coefficients (C0G/NP0, X7R) for different application requirements
All upgrade substitutes are Active status products with full availability

Similar Substitutes maintain core parameters but introduce variations:

Higher voltage rating (100V) for applications requiring greater voltage headroom
Alternative dielectric materials (X8R) with extended temperature range
Product status variations (Not For New Designs) indicating legacy or transitional classification

The critical parameters determining substitution validity are:

Capacitance value: 330 pF (fixed)
Package size: 0402 (1005 Metric) (fixed)
Mounting type: Surface Mount, MLCC (fixed)
Voltage rating: Equal to or greater than 16V (acceptable)
Tolerance: Equal to or tighter than ±20% (acceptable)
Temperature coefficient: X7R, C0G/NP0, or X8R (acceptable for respective applications)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Temp Range	Status	Inventory
C0402C331M4RAC7867	KEMET	330 pF	±20%	16V	X7R	-55°C ~ 125°C	Active	2939 Pcs
C0402C331J3GAC7867	KEMET	330 pF	±5%	25V	C0G/NP0	-55°C ~ 125°C	Active	65351 Pcs
C0402C331J4GAC7867	KEMET	330 pF	±5%	16V	C0G/NP0	-55°C ~ 125°C	Active	20677 Pcs
C0402C331J5GAC7867	KEMET	330 pF	±5%	50V	C0G/NP0	-55°C ~ 125°C	Active	227580 Pcs
C0402C331J5RAC7867	KEMET	330 pF	±5%	50V	X7R	-55°C ~ 125°C	Active	13912 Pcs
C0402C331K3RAC7867	KEMET	330 pF	±10%	25V	X7R	-55°C ~ 125°C	Active	11171 Pcs
C0402C331K4RAC7867	KEMET	330 pF	±10%	16V	X7R	-55°C ~ 125°C	Active	44125 Pcs
C0402C331K5GAC7867	KEMET	330 pF	±10%	50V	C0G/NP0	-55°C ~ 125°C	Active	69654 Pcs
C0402C331K5RAC7867	KEMET	330 pF	±10%	50V	X7R	-55°C ~ 125°C	Active	33589 Pcs
C0402C331J1GAC7867	KEMET	330 pF	±5%	100V	C0G/NP0	-55°C ~ 125°C	Active	20139 Pcs
C1005X8R1H331K050BA	TDK Corporation	330 pF	±10%	50V	X8R	-55°C ~ 150°C	Not For New Designs	13585 Pcs

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, Same Temperature Coefficient):

C0402C331K4RAC7867 (KEMET, ±10% tolerance, 16V, X7R) is the primary substitute when maintaining identical electrical specifications is required. This part shares the same voltage rating and X7R temperature coefficient as the original C0402C331M4RAC7867, with improved tolerance specification (±10% versus ±20%). Product status is Active with 44125 units in inventory.

For Voltage Margin Enhancement (Higher Voltage Rating):

C0402C331J5RAC7867 (KEMET, ±5% tolerance, 50V, X7R) provides increased voltage headroom while maintaining X7R temperature coefficient. This upgrade substitute operates at 50V rated voltage with tighter tolerance (±5%), suitable for applications requiring additional design margin. Product status is Active with 13912 units available.

C0402C331K5RAC7867 (KEMET, ±10% tolerance, 50V, X7R) offers the same voltage upgrade with ±10% tolerance, maintaining compatibility with the original tolerance class. Product status is Active with 33589 units in inventory.

For Tolerance Improvement (Tighter Tolerance Specification):

C0402C331J4GAC7867 (KEMET, ±5% tolerance, 16V, C0G/NP0) maintains the 16V voltage rating with significantly improved tolerance (±5% versus ±20%) and C0G/NP0 temperature coefficient. This substitute is suitable for precision applications requiring stable capacitance values. Product status is Active with 20677 units available.

For Extended Voltage and Tolerance (Maximum Specification Upgrade):

C0402C331J5GAC7867 (KEMET, ±5% tolerance, 50V, C0G/NP0) combines maximum voltage rating (50V), tightest tolerance (±5%), and C0G/NP0 temperature coefficient for general-purpose applications. Product status is Active with highest inventory availability (227580 units).

For High-Temperature Applications:

C1005X8R1H331K050BA (TDK Corporation, ±10% tolerance, 50V, X8R) extends operating temperature range to -55°C ~ 150°C with X8R temperature coefficient. This substitute is classified as Not For New Designs, indicating legacy status. Use only when high-temperature performance is mandatory and alternative Active-status parts are unsuitable.

Compliance and Regulatory Status:

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status, matching the original part's regulatory classification. All KEMET substitutes are Active products suitable for new designs.

Frequently Asked Questions (FAQ)

Q: Can C0402C331K4RAC7867 directly replace C0402C331M4RAC7867 in existing designs?

A: Yes. Both parts share identical capacitance (330 pF), voltage rating (16V), temperature coefficient (X7R), package size (0402), and operating temperature range (-55°C ~ 125°C). The substitute features improved tolerance (±10% versus ±20%), which is a beneficial change. No circuit modifications are required.

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

A: X7R temperature coefficient specifies capacitance variation of ±15% across the operating temperature range (-55°C ~ 125°C). C0G/NP0 temperature coefficient specifies ±30 ppm/°C, resulting in significantly lower capacitance drift. C0G/NP0 is preferred for precision applications; X7R is suitable for bypass and decoupling functions.

Q: Can I use a 50V-rated capacitor in a 16V circuit?

A: Yes. Voltage rating indicates the maximum voltage the capacitor can withstand. Using a higher-rated capacitor (50V) in a lower-voltage circuit (16V) is electrically safe and common practice. This provides additional design margin and reliability. Physical dimensions remain identical in the 0402 package.

Q: What does "Not For New Designs" status mean for the TDK C1005X8R1H331K050BA?

A: This classification indicates the part is in legacy or transitional status. While functionally operational and available in inventory (13585 units), the manufacturer does not recommend this part for new circuit designs. KEMET Active-status alternatives are preferred for new development.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts, including both KEMET and TDK options, maintain ROHS3 compliance status matching the original C0402C331M4RAC7867. Moisture sensitivity level (MSL 1 - Unlimited) and REACH Unaffected status are consistent across all substitutes.

Q: Which substitute offers the best tolerance specification?

A: C0402C331J3GAC7867, C0402C331J5GAC7867, C0402C331J4GAC7867, and C0402C331J1GAC7867 all feature ±5% tolerance, the tightest specification available. Among these, C0402C331J5GAC7867 combines ±5% tolerance with the highest voltage rating (50V) and maximum inventory availability (227580 units).

Q: Can I substitute based on capacitance value alone?

A: No. Valid substitution requires matching capacitance (330 pF), package size (0402), and mounting type (Surface Mount, MLCC). Voltage rating must equal or exceed the original 16V. Temperature coefficient and tolerance may vary based on application requirements. All other parameters must remain compatible with circuit design specifications.

Q: What inventory considerations should guide part selection?

A: C0402C331J5GAC7867 offers maximum availability (227580 units), ensuring supply continuity for high-volume production. C0402C331K4RAC7867 (44125 units) and C0402C331K5RAC7867 (33589 units) provide adequate stock for standard applications. Verify current inventory status with supplier before finalizing design selection.

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