CL10B333KB8SFNC Equivalent & Substitute Parts

Part Overview

The CL10B333KB8SFNC is a 0.033 µF ±10% 50V ceramic capacitor manufactured by Samsung Electro-Mechanics in the 0603 (1608 Metric) package with X7R temperature coefficient. This surface mount multilayer ceramic capacitor (MLCC) is classified as Active product status and is ROHS3 compliant with MSL 1 rating. Substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance, temperature coefficient) and mechanical compatibility (package size, mounting type, physical dimensions) to ensure direct functional equivalence in circuit applications.

Key Parameters

Parameter	Value	Specification Basis
Capacitance	0.033 µF	Core electrical specification
Tolerance	±10%	Acceptable variance range
Voltage Rating	50V	Maximum operating voltage
Temperature Coefficient	X7R	Thermal stability classification
Operating Temperature Range	-55°C to 125°C	Environmental operating limits
Package / Case	0603 (1608 Metric)	Physical footprint compatibility
Mounting Type	Surface Mount, MLCC	Assembly method
RoHS Status	ROHS3 Compliant	Environmental compliance
Moisture Sensitivity Level	1 (Unlimited)	Handling and storage requirements

Substitute Part Grouping Explanation

Substitute parts for CL10B333KB8SFNC are classified into three categories based on substitution criteria:

Parametric Equivalents (Samsung Electro-Mechanics CL Series): Parts CL10B333KB8NFNC and CL10B333KB8NNNC match all electrical parameters (0.033 µF, ±10%, 50V, X7R, -55°C to 125°C) and mechanical specifications (0603 package, surface mount MLCC). These differ only in packaging format (Tape & Reel or Cut Tape & Digi-Reel) and inventory availability. Substitution is direct with no circuit performance impact.

Upgrade Substitutes (Enhanced Features): Parts CL10B333KB8WPNC (Samsung), AC0603KRX7R9BB333 (YAGEO), and C0603C333J5RAC7867 (KEMET) maintain all core electrical and mechanical parameters while offering additional certifications or tighter tolerances. CL10B333KB8WPNC adds AEC-Q200 automotive rating. AC0603KRX7R9BB333 includes AEC-Q200 compliance. C0603C333J5RAC7867 provides ±5% tolerance (tighter than ±10%).

Direct Manufacturer Equivalents (Cross-Manufacturer): Parts from KEMET (C0603C333K5RAC7867, C0603X333K5RAC7867), TDK Corporation (CGJ3E2X7R1H333K080AA), KYOCERA AVX (KGF15AR71H333KT, KGM15BR71H333KT), and YAGEO (AC0603KRX7R9BB333) provide functional equivalence across different manufacturers. All maintain 0.033 µF, ±10% tolerance, 50V rating, X7R coefficient, and 0603 package. Minor dimensional variations (thickness 0.034" to 0.037") remain within acceptable PCB assembly tolerances.

Substitution Logic: All listed parts satisfy the following mandatory criteria:

Capacitance: 0.033 µF (exact match)
Voltage Rating: 50V (exact match)
Temperature Coefficient: X7R (exact match)
Operating Temperature: -55°C to 125°C (exact match)
Package: 0603 (1608 Metric) (exact match)
Mounting: Surface Mount MLCC (exact match)
RoHS3 Compliance (all parts)
MSL 1 Rating (all parts)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Operating Temp	Package	Thickness (Max)	Product Status	Packaging Type
CL10B333KB8SFNC	Samsung Electro-Mechanics	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.035"	Active	Cut Tape
CL10B333KB8WPNC	Samsung Electro-Mechanics	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.035"	Active	Tape & Reel
CL10B333KB8NFNC	Samsung Electro-Mechanics	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.035"	Active	Tape & Reel
CL10B333KB8NNNC	Samsung Electro-Mechanics	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.035"	Active	Cut Tape & Digi-Reel
C0603C333K5RAC7867	KEMET	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.034"	Active	Tape & Reel
C0603X333K5RAC7867	KEMET	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.034"	Active	Tape & Reel
CGJ3E2X7R1H333K080AA	TDK Corporation	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.035"	Obsolete	Cut Tape
KGF15AR71H333KT	KYOCERA AVX	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.035"	Active	Tape & Reel
KGM15BR71H333KT	KYOCERA AVX	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.037"	Active	Tape & Reel
AC0603KRX7R9BB333	YAGEO	0.033 µF	±10%	50V	X7R	-55°C ~ 125°C	0603	0.035"	Active	Tape & Reel
C0603C333J5RAC7867	KEMET	0.033 µF	±5%	50V	X7R	-55°C ~ 125°C	0603	0.034"	Active	Tape & Reel

Engineering Selection Recommendations

Primary Selection (Direct Replacement): CL10B333KB8NFNC or CL10B333KB8NNNC from Samsung Electro-Mechanics provide identical electrical and mechanical specifications to the main part with Active product status. These are preferred for applications requiring continuity within the Samsung CL series ecosystem.

Cross-Manufacturer Selection: KEMET C0603C333K5RAC7867, KYOCERA AVX KGM15BR71H333KT, and YAGEO AC0603KRX7R9BB333 are suitable alternatives with Active product status and full ROHS3 compliance. These parts are functionally equivalent and support supply chain diversification.

Automotive Applications: For circuits requiring AEC-Q200 certification, select CL10B333KB8WPNC (Samsung), AC0603KRX7R9BB333 (YAGEO), or CGJ3E2X7R1H333K080AA (TDK). These parts carry automotive-grade ratings.

Enhanced Tolerance Requirement: C0603C333J5RAC7867 from KEMET offers ±5% tolerance compared to the standard ±10%, providing tighter capacitance control for precision applications.

Flexible Termination Applications: KGF15AR71H333KT (KYOCERA AVX FLEXITERM) and C0603X333K5RAC7867 (KEMET Flex) feature soft termination technology for board-flex sensitive applications.

Obsolete Part Avoidance: CGJ3E2X7R1H333K080AA (TDK) is marked Obsolete and should not be selected for new designs despite functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can CL10B333KB8WPNC replace CL10B333KB8SFNC in general-purpose applications?

A: Yes. CL10B333KB8WPNC is a direct electrical and mechanical equivalent with identical capacitance (0.033 µF), tolerance (±10%), voltage rating (50V), temperature coefficient (X7R), and package (0603). The difference is packaging format (Tape & Reel vs. Cut Tape) and the addition of AEC-Q200 automotive certification, which does not restrict use in general-purpose circuits.

Q: What is the significance of the ±5% tolerance in C0603C333J5RAC7867 compared to the ±10% specification?

A: The ±5% tolerance provides tighter capacitance control, meaning the actual capacitance value will be closer to the nominal 0.033 µF specification. This is beneficial for applications with strict capacitance requirements but is not necessary for general bypass and decoupling functions where ±10% tolerance is acceptable.

Q: Are KEMET and KYOCERA AVX parts fully compatible with Samsung parts in the same circuit?

A: Yes. All listed substitute parts maintain identical electrical specifications (0.033 µF, ±10%, 50V, X7R, -55°C to 125°C) and mechanical compatibility (0603 package, surface mount MLCC, 0.034" to 0.037" thickness). Physical dimensions remain within PCB assembly tolerances. Cross-manufacturer substitution is supported.

Q: Why is CGJ3E2X7R1H333K080AA marked as Obsolete?

A: CGJ3E2X7R1H333K080AA is classified as Obsolete by TDK Corporation, indicating it is no longer in active production. While electrically and mechanically equivalent, this part should not be selected for new designs due to limited future availability and potential supply discontinuation.

Q: What is the difference between Cut Tape, Tape & Reel, and Cut Tape & Digi-Reel packaging?

A: These are packaging and delivery formats that do not affect electrical or mechanical performance. Cut Tape (CT) is supplied in individual strips for manual handling. Tape & Reel (TR) is supplied on continuous reels for automated assembly. Cut Tape & Digi-Reel combines both formats. Selection depends on manufacturing process requirements and volume.

Q: Can parts with soft termination (FLEXITERM, Flex) be used in standard applications?

A: Yes. Soft termination technology is a manufacturing feature that reduces mechanical stress on component terminations during board flexing. Parts with soft termination (KGF15AR71H333KT, C0603X333K5RAC7867) are fully compatible with standard applications and provide additional reliability in flex-sensitive environments.

Q: Is MSL 1 rating consistent across all substitute parts?

A: Yes. All listed substitute parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating they require no special moisture control during storage and handling. This specification is uniform across all alternatives.

Q: What compliance standards apply to all substitute parts?

A: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Parts designated for automotive use additionally carry AEC-Q200 certification.

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