Small Size, Big Capability: The Samsung CL31B106KBHNNNE (10μF/50V X7R) MLCC at a Glance

Among the vast array of electronic components, an inconspicuous MLCC (Multilayer Ceramic Capacitor) is often the key to stable circuit operation. Today, we are pleased to introduce a star product from Samsung Electro-Mechanics – the CL31B106KBHNNNE.

Parameter Breakdown: Small Size, Big Capability

The CL31B106KBHNNNE belongs to Samsung's CL series standard MLCCs. Its part number encodes rich information: "CL31" denotes a 1206 package (imperial size), "B" indicates an X7R temperature characteristic, "106" means a capacitance of 10 μF, "K" represents ±10% tolerance, "B" stands for a rated voltage of 50 V, and "HNNNE" covers details such as dimensions, termination, and packaging.

It adopts a standard 1206 (3216 metric) surface‑mount package, with dimensions of 3.20 mm × 1.60 mm and a thickness of 1.80 mm. As a Class II ceramic capacitor with X7R dielectric, it offers a capacitance change within ±15% over a wide temperature range of -55 °C to +125 °C, making it ideal for environments with varying temperatures. The large 10 μF capacitance combined with ±10% tolerance meets most power‑supply filtering and energy‑storage requirements, while the 50 V rated voltage provides ample safety margin.

Application Scenarios: The Ubiquitous "Lifeblood" of Electronics

With its balanced performance, the CL31B106KBHNNNE is widely used across various electronic products. In power management, it is commonly employed for output filtering in switching power supplies, as well as input/output filtering and voltage‑regulation energy storage in DC‑DC converters. In consumer electronics, it appears in laptops, mobile phones, LCD TVs, and many other devices. It is also suitable for general‑purpose applications such as signal filtering in industrial controls and main control circuits of small home appliances.

Core Parameter Summary

Parameter	Specification
Manufacturer	Samsung Electro‑Mechanics
Package Size	1206 (3216 metric)
Capacitance	10 µF
Tolerance	±10%
Rated Voltage	50 V
Temperature Coefficient	X7R
Operating Temperature	-55 °C ~ +125 °C

Frequently Asked Questions

Q: What is the main difference between the CL31B106KBHNNNE and a common 10 μF / 25 V MLCC?

A: The most significant difference lies in the rated voltage. The CL31B106KBHNNNE has a voltage rating of 50 V, much higher than the typical 25 V version. In applications that require greater voltage margin – such as 48 V communication power supplies, industrial buses, or pre‑development for automotive electronics – the 50 V rating offers improved reliability and safety. Of course, a higher voltage rating usually comes with a slightly higher cost.

Q: If the CL31B106KBHNNNE is out of stock, what alternatives are available?

A: You can look for alternative parts with matching parameters, such as TDK's C3216X7R1H106KT or Sanyear's C1206X7R106K500NT. When selecting, be sure to verify that the package, capacitance, voltage, temperature coefficient, and tolerance all align with your requirements. It is always recommended to consult the respective datasheets and perform practical validation.

Conclusion

Samsung Electro‑Mechanics' CL31B106KBHNNNE is a general‑purpose MLCC that combines high capacitance, high voltage rating, and a wide temperature range. Whether in power‑supply design, consumer electronics, or industrial control, it is a well‑balanced and reliable choice. Next time you see this tiny 1206 capacitor on a circuit board, remember its quiet yet essential contribution to stable operation.

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