CL31B103KGFNFNE Equivalent & Substitute Parts

Part Overview

The CL31B103KGFNFNE is a 10000 pF (0.01 µF) ceramic capacitor manufactured by Samsung Electro-Mechanics, rated for 500V with X7R temperature coefficient in 1206 (3216 Metric) surface mount package. This multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection. Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	10000 pF (±10%)	Must match exactly; tolerance variation acceptable within ±10%
Voltage Rating	500V	Minimum requirement; higher voltage ratings are acceptable substitutes
Temperature Coefficient	X7R	Must match; defines capacitance stability across operating temperature
Package / Case	1206 (3216 Metric)	Must match for PCB footprint compatibility
Operating Temperature	-55°C to 125°C	Must support full range; defines application suitability
Mounting Type	Surface Mount, MLCC	Must match; defines assembly process compatibility
RoHS Status	ROHS3 Compliant	Regulatory requirement; substitute must maintain compliance
MSL Rating	1 (Unlimited)	Moisture sensitivity level; substitute must meet or exceed

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical compatibility with the main part CL31B103KGFNFNE:

Direct Substitutes (Equivalent Rating): Parts with identical 500V voltage rating, 10000 pF capacitance, ±10% tolerance, X7R temperature coefficient, and 1206 package. These parts are pin-compatible and electrically interchangeable without circuit modification.

Upgrade Substitutes (Higher Voltage Rating): Parts with 630V or 1000V voltage ratings while maintaining all other electrical parameters (10000 pF, ±10% tolerance, X7R, 1206 package). These provide enhanced voltage margin and are functionally compatible in applications rated for 500V operation.

Key Parameters Determining Substitution:

Capacitance value: 10000 pF (fixed)
Tolerance: ±10% (fixed)
Temperature coefficient: X7R (fixed)
Package: 1206 (3216 Metric) (fixed)
Voltage rating: 500V minimum (equal or higher acceptable)
Operating temperature: -55°C to 125°C (fixed)
Mounting: Surface Mount, MLCC (fixed)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness (Max)	Product Status	Inventory
CL31B103KGFNFNE	Samsung Electro-Mechanics	10000 pF	±10%	500V	X7R	1206 (3216 Metric)	0.055" (1.40mm)	Active	626 Pcs
CC1206KKX7RBBB103	YAGEO	10000 pF	±10%	500V	X7R	1206 (3216 Metric)	0.057" (1.45mm)	Active	15891 Pcs
KGM31DR72H103KU	KYOCERA AVX	10000 pF	±10%	500V	X7R	1206 (3216 Metric)	0.057" (1.45mm)	Active	26108 Pcs
CL31B103KHFNFNE	Samsung Electro-Mechanics	10000 pF	±10%	630V	X7R	1206 (3216 Metric)	0.055" (1.40mm)	Active	60100 Pcs
CL31B103KHFNNNE	Samsung Electro-Mechanics	10000 pF	±10%	630V	X7R	1206 (3216 Metric)	0.055" (1.40mm)	Active	964102 Pcs
C3216X7R2J103K115AA	TDK Corporation	10000 pF	±10%	630V	X7R	1206 (3216 Metric)	0.051" (1.30mm)	Active	6300 Pcs
CC1206KKX7RCBB103	YAGEO	10000 pF	±10%	1000V (1kV)	X7R	1206 (3216 Metric)	0.057" (1.45mm)	Active	4160 Pcs
GRM31BR72J103KW01L	Murata Electronics	10000 pF	±10%	630V	X7R	1206 (3216 Metric)	0.049" (1.25mm)	Not For New Designs	3100 Pcs
KGM31DR72H103JU	KYOCERA AVX	10000 pF	±5%	500V	X7R	1206 (3216 Metric)	0.057" (1.45mm)	Active	2495 Pcs
KGM31ER72J103KU	KYOCERA AVX	10000 pF	±10%	630V	X7R	1206 (3216 Metric)	0.060" (1.52mm)	Active	5070 Pcs

Engineering Selection Recommendations

For Direct Substitution (500V Rating):

CC1206KKX7RBBB103 (YAGEO) and KGM31DR72H103KU (KYOCERA AVX) are direct electrical equivalents to CL31B103KGFNFNE. Both maintain 500V voltage rating, 10000 pF capacitance, ±10% tolerance, X7R temperature coefficient, and 1206 package. Both manufacturers' parts are ROHS3 compliant with MSL 1 rating. KGM31DR72H103KU offers higher inventory availability (26108 Pcs) compared to CC1206KKX7RBBB103 (15891 Pcs). Thickness variation (0.057" vs. 0.055") is within acceptable PCB assembly tolerances.

For Upgrade Substitution (Higher Voltage Rating):

CL31B103KHFNFNE and CL31B103KHFNNNE (Samsung Electro-Mechanics, 630V) provide voltage margin enhancement while maintaining identical capacitance, tolerance, temperature coefficient, and package. CL31B103KHFNNNE offers significantly higher inventory (964102 Pcs) in Tape & Reel packaging. C3216X7R2J103K115AA (TDK Corporation, 630V) and KGM31ER72J103KU (KYOCERA AVX, 630V) are alternative 630V options. CC1206KKX7RCBB103 (YAGEO, 1000V) provides maximum voltage margin for high-reliability applications.

Avoid for New Designs:

GRM31BR72J103KW01L (Murata Electronics) carries "Not For New Designs" status and should not be selected for new product development despite electrical compatibility.

Tolerance Consideration:

KGM31DR72H103JU offers tighter ±5% tolerance compared to the standard ±10% specification. This part is suitable for applications requiring improved capacitance accuracy but should be evaluated for cost-benefit in the specific circuit design.

Frequently Asked Questions (FAQ)

Q: Can I use a 630V-rated capacitor in place of the 500V CL31B103KGFNFNE?

A: Yes. Higher voltage-rated capacitors are functionally compatible in circuits designed for lower voltage operation. The 630V rating provides additional voltage margin and safety factor. All upgrade substitutes (CL31B103KHFNFNE, CL31B103KHFNNNE, C3216X7R2J103K115AA, KGM31ER72J103KU) maintain identical capacitance, tolerance, temperature coefficient, and package specifications.

Q: What is the difference between CL31B103KHFNFNE and CL31B103KHFNNNE?

A: Both parts are Samsung Electro-Mechanics 630V equivalents with identical electrical specifications. The difference is packaging: CL31B103KHFNFNE is supplied in Cut Tape (CT) & Digi-Reel format (60100 Pcs inventory), while CL31B103KHFNNNE is supplied in Tape & Reel (TR) format (964102 Pcs inventory). Select based on assembly line requirements and inventory availability.

Q: Are there physical size differences between substitute parts?

A: All substitute parts use the 1206 (3216 Metric) package with identical length (0.126" / 3.20mm) and width (0.063" / 1.60mm). Thickness varies slightly: CL31B103KGFNFNE and Samsung 630V parts are 0.055" (1.40mm), YAGEO and KYOCERA AVX 500V parts are 0.057" (1.45mm), TDK 630V is 0.051" (1.30mm), and KYOCERA AVX 630V is 0.060" (1.52mm). These variations are within standard PCB assembly tolerances and do not affect footprint compatibility.

Q: Why would I choose KGM31DR72H103JU with ±5% tolerance over the standard ±10% parts?

A: The ±5% tolerance option (KGM31DR72H103JU) provides tighter capacitance accuracy for applications requiring improved circuit performance or tighter filtering characteristics. This part maintains 500V rating and 1206 package but should be evaluated for cost impact and circuit necessity before selection.

Q: Which substitute offers the best inventory availability?

A: CL31B103KHFNNNE (Samsung Electro-Mechanics, 630V, Tape & Reel) provides the highest inventory with 964102 Pcs in stock. This part is recommended for high-volume production requiring immediate availability and supply chain security.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the regulatory and environmental requirements of the original CL31B103KGFNFNE.

Q: Can I use CC1206KKX7RCBB103 (1000V) in a 500V circuit?

A: Yes. The 1000V rating provides maximum voltage margin and is fully compatible with 500V circuit operation. This part is suitable for high-reliability applications or designs requiring extended voltage safety factor. Capacitance, tolerance, temperature coefficient, and package remain identical to the original specification.

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