CL10B104KB8NNNC 100nF 50V MLCC for Compact Power and Signal Circuits

ElecSuppliers Part Number GuideAug 26, 2026

CL10B104KB8NNNC Is a Small Capacitor With a Very Common Job

A large percentage of electronic circuits need a capacitor that does not attract much attention.

It sits next to an IC power pin, across a supply rail, inside a filtering network or near a sensor interface and quietly handles transient noise.

The CL10B104KB8NNNC fits that category.

With a nominal capacitance of 100nF, a compact 0603 package and a 50V voltage rating, it is the kind of MLCC that can be incorporated into a wide range of digital, analog and power circuits.

Its importance comes less from unusual functionality and more from how often a 100nF capacitor is needed in practical PCB design.

100nF Is a Familiar Value for Decoupling

One of the most common uses for a 100nF ceramic capacitor is local power-supply decoupling.

Digital ICs can produce rapid changes in current when their internal logic switches.

The power supply and PCB traces cannot always respond to those changes instantly.

A capacitor placed close to the IC can provide a local source of charge for short-duration current changes and help reduce high-frequency disturbances on the supply rail.

This is why 100nF capacitors are frequently found around microcontrollers, logic ICs, communication devices and other active components.

Placement Can Matter More Than Capacitance

Choosing the correct 100nF capacitor is only part of the decoupling problem.

Its location on the PCB can have a major effect on performance.

If the capacitor is placed far away from the IC, the traces between the capacitor and the device introduce additional inductance.

At higher frequencies, that parasitic inductance can reduce the effectiveness of the capacitor.

For this reason, a CL10B104KB8NNNC used for local bypassing should normally be positioned close to the relevant power and ground connections.

The shortest practical current path is often more useful than simply adding more capacitors somewhere else on the board.

The 0603 Package Balances Size and Handling

The 0603 package is small enough for densely populated circuit boards without being among the smallest passive formats available.

That makes it a practical compromise.

A designer working on a compact control board can place many capacitors around different ICs without consuming excessive PCB area.

At the same time, 0603 components are generally easier to handle during development and inspection than ultra-miniature packages.

This balance explains why the package remains common across many types of electronic equipment.

X7R Is Useful for General-Purpose Ceramic Capacitors

The CL10B series uses a ceramic dielectric suited to general-purpose capacitor applications.

For circuits where capacitance needs to remain reasonably stable across normal operating conditions, an X7R-class ceramic capacitor is often a practical choice.

It is important, however, not to assume that the nominal capacitance remains unchanged under every condition.

MLCCs can exhibit capacitance reduction under applied DC voltage.

That effect becomes more noticeable with smaller packages and certain dielectric formulations.

For a simple bypass circuit this may not be critical, but precision timing or filtering applications require closer examination of the actual effective capacitance.

100nF Does Not Mean Every 100nF Capacitor Is Equivalent

Two components can both be labeled 100nF while behaving differently in a real circuit.

Voltage rating, dielectric characteristics, tolerance, package size and DC-bias behavior can all affect the final result.

The CL10B104KB8NNNC is specified as a particular component rather than simply a generic 100nF capacitor.

That distinction becomes important when an existing PCB design is transferred into production or when a manufacturer proposes an alternative component.

A substitute should be evaluated against the electrical requirements instead of matching capacitance alone.

Where CL10B104KB8NNNC Can Be Used

The combination of capacitance and package size makes this type of MLCC suitable for many everyday applications.

It can be used for IC power decoupling, local bypassing, noise filtering, signal conditioning and general supply-line stabilization.

It may also appear in control circuits where a capacitor is required to suppress short-duration noise or shape a signal response.

In mixed-signal designs, multiple 100nF capacitors may be distributed across different sections of the PCB so that digital switching activity has less influence on sensitive analog circuitry.

The 50V Rating Gives More Headroom Than Low-Voltage Logic Requires

Many modern digital ICs operate at only a few volts.

Using a 50V-rated capacitor in such a circuit provides substantial voltage headroom.

That does not automatically make it the best choice for every design, since package size, cost and capacitance stability may lead engineers toward another specification.

But the higher voltage rating can be useful in circuits where supply transients or higher-voltage rails are present.

The actual voltage across the capacitor should always be compared with the component's rating, including expected transient conditions.

Watch the Capacitor When It Is Used for Timing

A 100nF MLCC is an excellent general-purpose bypass component, but timing circuits deserve more attention.

If the capacitor forms an RC time constant, its actual capacitance directly influences the timing behavior.

Changes caused by DC bias, temperature or component tolerance can therefore affect the resulting delay or frequency.

In such applications, engineers should evaluate the effective capacitance under the actual operating voltage rather than designing entirely around the printed nominal value.

MLCCs Also Need Mechanical Consideration

Ceramic capacitors are compact and electrically useful, but ceramic materials can be sensitive to mechanical stress.

On larger PCBs, board flex during assembly or handling can place stress on small MLCCs.

That can become particularly important near board edges, mounting points and areas exposed to mechanical loading.

Good PCB layout and assembly practices can reduce unnecessary mechanical stress on the component.

Why CL10B104KB8NNNC Can Be Useful in Production BOMs

For manufacturing teams, a standardized 100nF MLCC can simplify component management.

The same basic capacitor function may be needed dozens of times across a PCB.

Using a consistent component family can make purchasing and assembly planning easier while reducing unnecessary variation in the BOM.

However, the exact component should still be maintained in the approved BOM when its electrical or mechanical characteristics have been validated.

CL10B104KB8NNNC Is a Practical Decoupling Component

The CL10B104KB8NNNC represents one of the most common building blocks in modern PCB design: a compact ceramic capacitor intended for everyday filtering and decoupling work.

Its 100nF capacitance, 0603 package and 50V rating make it suitable for a broad range of electronic circuits.

The important lesson is that selecting an MLCC should go beyond matching the capacitance printed on the schematic.

For reliable designs, engineers should also consider DC-bias effects, voltage rating, tolerance, placement, temperature and mechanical stress.

That is where a seemingly ordinary 100nF capacitor becomes an important part of the overall circuit design.