Samsung Electro-Mechanics CL31B333KFESNNE

Summary of CL31B333KFESNNE Samsung Electro-Mechanics 0.033 μF 350V X7R 1206 MLCC

The Samsung Electro-Mechanics CL31B333KFESNNE is a multilayer ceramic capacitor (MLCC) designed with a capacitance of 0.033 μF (33 nF), a rated voltage of 350V, featuring X7R dielectric in a 1206 (3216 metric) surface-mount package. This component aligns with the requirements for compact, high-reliability passive devices in commercial and industrial electronics platforms, providing temperature stability, noise suppression, and rapid surface mount compatibility.

Main attributes of CL31B333KFESNNE Samsung Electro-Mechanics 0.033 μF 350V X7R 1206 MLCC

The CL31B333KFESNNE leverages X7R ceramic for its Class II dielectric, offering ±10% tolerance and maintaining capacitance stability over the -55°C to +125°C temperature range. Its 1206 size is amenable to high-speed automatic PCB assembly. The device's structure includes nickel and copper internal electrodes with external tin plating, optimizing both electrical performance and solderability. RoHS3 compliance and MSL 1 rating enable unrestricted use across global markets and varied manufacturing environments.

Capacitance and voltage classification details for CL31B333KFESNNE Samsung Electro-Mechanics

This model fits into the broader Samsung Electro-Mechanics MLCC family, identified by part number construction where “CL” denotes multilayer ceramic chip capacitors, “31” refers to the 1206 size, “333” indicates 0.033 μF, “K” represents ±10% tolerance, “F” signals 350V rating, and “E” specifies X7R dielectric. The voltage classification (350V) positions the CL31B333KFESNNE as suitable for circuits requiring higher breakdown voltage, such as power modules, display drivers, and industrial signal filtering. The capacitance is expressed per EIA standards, ensuring interoperability and clear specification matching.

Reliability rating and operational durability of CL31B333KFESNNE Samsung Electro-Mechanics

Samsung Electro-Mechanics MLCCs, including the CL31B333KFESNNE, are segmented into multiple reliability levels. The standard grade targets general-purpose electronic circuits, whereas High Level I and II grades provide enhanced moisture resistance (tested at 65°C/90% RH/500 hours and 85°C/85% RH/1000 hours, respectively) and are suitable for industrial, network, and outdoor equipment. Stress tests include board bending and temperature cycling, ensuring the CL31B333KFESNNE sustains integrity in demanding physical and climate conditions.

Special versions Enhanced flex resistance, reduced acoustic interference, and minimized ESL in CL31B333KFESNNE Samsung Electro-Mechanics MLCCs

The CL31B333KFESNNE series features several subtypes that address unique design challenges:

High Bending Strength versions incorporate soft termination and metal/epoxy end caps, drastically improving survival against PCB flexure and mounting stress.

Low Acoustic Noise variants employ piezoelectric effect damping, reducing audio frequency noise transmission to the PCB substrate—critical for consumer and industrial devices subjected to variable AC signals.

Low ESL (Equivalent Series Inductance) MLCCs are engineered for fast energy transfer and high-speed IC power decoupling, permitting efficient integration in dense, high-frequency layouts by minimizing parasitic inductance.

Use cases for CL31B333KFESNNE Samsung Electro-Mechanics 0.033 μF 350V X7R 1206 MLCC

In applied engineering, the CL31B333KFESNNE is deployable in smartphones, tablets, laptops, displays, game consoles, DC-DC converters, and server/network infrastructure. It offers both buffering and noise reduction functions within power management circuits, data signal pathways, and high-voltage isolation blocks. The robust operating characteristics make it particularly valuable in areas with rapidly cycling power demands or elevated environmental stress, such as network base stations and solar inverters.

Electrical and structural factors for CL31B333KFESNNE Samsung Electro-Mechanics

Electrical aspects include:

Capacitance (measured per EIA RS-198-1-F-2002 with AC/DC voltage bias considerations)

Dissipation Factor (DF) and quality factor (Q) for loss assessment—Class II (X7R) capacitors like CL31B333KFESNNE typically present loss characteristics via DF.

Insulation Resistance, measured one minute after rated voltage application.

Self-heating effects and maximum surface temperature (not to exceed 20°C rise above ambient).

Aging (capacitance drop over time for Class II MLCC, restored by thermal cycling).

Voltage and TCC: Capacitance reduces with higher DC bias or temperature, requiring design margin in tightly-toleranced circuits.

Mechanical aspects include:

Impedance and resonance characteristics across operational frequency range (capacitive at low frequency, inductive at high frequency).

Sensitivity to vibration, shock, and PCB flexing—Samsung MLCCs design in crack and stress resistance.

Mounting recommendations near PCB cutouts, screw holes, and areas subject to geometric deformation.

Installation, soldering, and packaging instructions for CL31B333KFESNNE Samsung Electro-Mechanics MLCC

To achieve optimal reliability and electrical connection, follow these practices:

Mount MLCCs aligned with major axis parallel to board stress direction; avoid locations near PCB cutouts or high mechanical loading.

Use pick-and-place equipment with head pressure below 300g.f; regularly inspect suction nozzles and claws for smooth operation.

Reflow soldering: Control peak temperature per solder manufacturer's recommendations (typically <260°C, max 3 cycles), ensuring uniform flux application and minimal difference between PCB and MLCC temperature.

Packaging: Provided in tape and reel or box formats per IEC 60286-3, facilitating automatic handling and ESD-safe operation.

Storage: Maintain MLCCs in original reel packaging, at 0~40°C and ≤70% RH for optimum shelf-life and solderability.

Environmental and storage recommendations for CL31B333KFESNNE Samsung Electro-Mechanics

The CL31B333KFESNNE is RoHS3 compliant and manufactured to withstand environmental stressors. Store in environments free from corrosive gases, direct sunlight, high humidity, and vibration. Solderability can degrade after six months, so requalification is recommended for aging stock. Transport in vibration- and shock-protected packaging to prevent mechanical fracture.

Alternative and substitute options for CL31B333KFESNNE Samsung Electro-Mechanics

When evaluating potential substitutions, engineers should compare capacitance, voltage rating, dielectric, tolerance, package size, and reliability. Within Samsung Electro-Mechanics' own portfolio, similar X7R MLCCs in 1206 or 1210 sizes and 0.033 μF/350V specifications may serve as replacements, including high-level reliability and soft-termination variants for increased mechanical robustness. Compatibility must be confirmed for specialized functions such as low acoustic noise or low ESL requirements, depending on the end-use circuit.

Conclusion

The Samsung Electro-Mechanics CL31B333KFESNNE 0.033 μF 350V X7R 1206 MLCC offers a blend of stability, reliability, and flexible mounting for modern electronics, suitable for engineers seeking dependable passive components for both consumer and industrial programs. With nuanced reliability options, environmental tolerance, and specialized subtypes, CL31B333KFESNNE stands as an effective solution for applications where performance, process compatibility, and ongoing operational robustness are non-negotiable. Selection engineers and procurement professionals should evaluate project-specific requirements to maximize both functionality and lifecycle in their systems.