KEMET C0603C331M3RAC7867 Equivalent & Substitute Parts

Part Overview

The KEMET C0603C331M3RAC7867 is a surface-mount multilayer ceramic capacitor (MLCC) with a capacitance of 330 pF, rated voltage of 25V, and X7R temperature coefficient. This component is designed for bypass and decoupling applications in electronic circuits. The part is currently active in production with 1019 units in stock. Substitute parts are identified when design requirements allow for alternative electrical specifications, such as higher voltage ratings, improved tolerance grades, or different temperature coefficient characteristics, while maintaining the same 0603 package footprint and 330 pF capacitance value.

Key Parameters

Parameter	Value
Manufacturer Part Number	C0603C331M3RAC7867
Manufacturer	KEMET
Capacitance	330 pF
Tolerance	±20%
Voltage - Rated	25V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	0603 (1608 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	0.063" L x 0.031" W (1.60mm x 0.80mm)
Thickness (Max)	0.034" (0.87mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the C0603C331M3RAC7867 are organized based on three primary electrical parameters that determine functional compatibility:

1. Capacitance Value: All substitute parts maintain 330 pF capacitance, ensuring equivalent circuit behavior.

2. Voltage Rating: Substitute parts are available at 25V, 50V, and 100V ratings. Higher voltage-rated parts (50V, 100V) are direct substitutes when circuit design permits, as they provide additional safety margin. The original 25V rating is the minimum requirement.

3. Temperature Coefficient & Tolerance: Substitute parts are grouped into two dielectric types:

X7R Dielectric: Maintains the same temperature coefficient as the original part with tolerance options of ±5% and ±10%
C0G/NP0 Dielectric: Offers superior temperature stability and tighter tolerances (±1%, ±2%, ±5%, ±10%) compared to X7R

4. Package & Mounting: All substitute parts use identical 0603 (1608 Metric) surface-mount package, ensuring mechanical and thermal compatibility.

5. Compliance & Certifications: All substitute parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status, with one exception noted in the selection table.

Parameter Comparison

Part Number	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	RoHS Status	Inventory (Pcs)
C0603C331M3RAC7867	330 pF	±20%	25V	X7R	0603	ROHS3 Compliant	1019
C0603C331F5GAC7867	330 pF	±1%	50V	C0G/NP0	0603	ROHS3 Compliant	162575
C0603C331G5GAC7867	330 pF	±2%	50V	C0G/NP0	0603	ROHS3 Compliant	20015
C0603C331J1GAC7867	330 pF	±5%	100V	C0G/NP0	0603	ROHS3 Compliant	10061
C0603C331J3GAC7867	330 pF	±5%	25V	C0G/NP0	0603	ROHS3 Compliant	11986
C0603C331J5GAL7867	330 pF	±5%	50V	C0G/NP0	0603	RoHS non-compliant	8598
C0603C331J5RAC7867	330 pF	±5%	50V	X7R	0603	ROHS3 Compliant	1560
C0603C331K1RAC7867	330 pF	±10%	100V	X7R	0603	ROHS3 Compliant	102053
C0603C331K2RAC7867	330 pF	±10%	200V	X7R	0603	ROHS3 Compliant	11124
C0603C331K3RAC7867	330 pF	±10%	25V	X7R	0603	ROHS3 Compliant	8855
C0603C331K5GAC7867	330 pF	±10%	50V	C0G/NP0	0603	ROHS3 Compliant	7200

Engineering Selection Recommendations

Direct Substitutes (Same Voltage Rating - 25V):

C0603C331J3GAC7867: Suitable when improved tolerance (±5% vs. ±20%) and C0G/NP0 temperature stability are required while maintaining the 25V rating. ROHS3 compliant.
C0603C331K3RAC7867: Suitable when X7R temperature coefficient must be retained with relaxed tolerance (±10%) at 25V rating. ROHS3 compliant. Available in Cut Tape (CT) & Digi-Reel® packaging.

Upgraded Substitutes (Higher Voltage Rating - 50V):

C0603C331F5GAC7867: Highest precision option (±1% tolerance) with C0G/NP0 dielectric and 50V rating. Provides maximum voltage margin and temperature stability. ROHS3 compliant. Largest inventory availability (162,575 pcs).
C0603C331G5GAC7867: Mid-range precision (±2% tolerance) with C0G/NP0 dielectric and 50V rating. ROHS3 compliant.
C0603C331J5RAC7867: Maintains X7R dielectric with ±5% tolerance and 50V rating. ROHS3 compliant.
C0603C331K5GAC7867: X7R alternative with ±10% tolerance and 50V rating. C0G/NP0 variant also available. ROHS3 compliant.

High Voltage Substitutes (100V and Above):

C0603C331J1GAC7867: C0G/NP0 dielectric with ±5% tolerance and 100V rating. ROHS3 compliant.
C0603C331K1RAC7867: X7R dielectric with ±10% tolerance and 100V rating. ROHS3 compliant. Highest inventory (102,053 pcs).
C0603C331K2RAC7867: X7R dielectric with ±10% tolerance and 200V rating for maximum voltage margin applications. ROHS3 compliant.

Compliance Note: Part C0603C331J5GAL7867 is RoHS non-compliant and should be selected only when legacy design requirements mandate SnPb finish. All other substitutes are ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can I use a 50V or 100V rated capacitor in place of the 25V C0603C331M3RAC7867?

A: Yes. Higher voltage-rated capacitors are direct substitutes when the circuit design permits. The voltage rating indicates the maximum voltage the capacitor can withstand; using a higher-rated part provides additional safety margin and does not affect circuit performance at lower operating voltages.

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

A: X7R dielectric exhibits capacitance variation of ±15% across the -55°C to 125°C operating range. C0G/NP0 dielectric provides superior temperature stability with minimal capacitance change across the same range. C0G/NP0 is preferred for precision applications; X7R is suitable for general bypass and decoupling.

Q: Does tolerance grade affect substitutability?

A: Tolerance grade affects circuit precision but does not prevent substitution. The original part has ±20% tolerance. Substitute parts with tighter tolerances (±1%, ±2%, ±5%, ±10%) are direct replacements and provide improved capacitance accuracy. Relaxed tolerance grades are also acceptable if circuit design permits.

Q: Are all substitute parts available in the same 0603 package?

A: Yes. All substitute parts listed use the 0603 (1608 Metric) surface-mount package with identical dimensions (0.063" L x 0.031" W, 1.60mm x 0.80mm) and maximum thickness (0.034", 0.87mm). Mechanical and thermal compatibility is maintained across all substitutes.

Q: What is the significance of MSL 1 rating?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1 rating, ensuring no special storage or handling procedures are necessary.

Q: Which substitute offers the best availability?

A: C0603C331F5GAC7867 has the highest inventory at 162,575 units. C0603C331K1RAC7867 is the second most available at 102,053 units.

Q: Is the C0603C331J5GAL7867 suitable for new designs?

A: C0603C331J5GAL7867 is RoHS non-compliant due to SnPb finish. This part should be used only in legacy designs or applications where RoHS exemption applies. For new designs, select ROHS3-compliant alternatives.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes, provided all parts meet the circuit's electrical requirements (voltage rating, capacitance value, tolerance). However, using a single part number across the design simplifies procurement, inventory management, and manufacturing.

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