A "Power Station" in a Tiny Space: Deconstructing Samsung's CL05A106MQ5NUNC

In the increasingly miniaturized and high-performance consumer electronics industry, an inconspicuous capacitor often determines product stability and lifespan. Samsung Electro-Mechanics' CL05A106MQ5NUNC is exactly such a general-purpose multilayer ceramic capacitor (MLCC) that packs significant energy into a minuscule footprint.

Core Parameter Breakdown

The most striking feature of this capacitor is its 10µF capacitance achieved within an ultra-compact 0402 package (1.0mm × 0.5mm). Key specifications are as follows:

Parameter	Specification
Capacitance	10µF
Rated Voltage	6.3V
Tolerance	±20%
Temperature Characteristic	X5R (−55°C ~ +85°C)
Package Size	0402 (1005 metric)

Technical Features and Design Considerations

The choice of X5R dielectric ensures stable capacitance over a wide temperature range, making it suitable for general-purpose applications. While the ±20% tolerance may be limiting in precision analog circuits, it performs adequately for digital applications such as power supply decoupling and filtering.

Pricing and Supply Trends

Q: What is the current supply and pricing status for this model?
A:This model is highly popular in the market. Major distributors such as DigiKey maintain stock in the millions. For retail, the price is approximately $0.29 per unit, while **bulk purchases (starting from 10,000 pieces) can reduce the price to as low as about $0.056 per unit**. In the Chinese domestic market, bulk unit prices can reach around ¥0.02. It is worth noting that some channels have previously listed it as "obsolete" or with extended lead times, but major e-commerce platforms still show it as "in stock." It is advisable to verify the latest manufacturer lead times before placing an order.

Q: What are the typical application scenarios for this capacitor?
A:Due to its "small size, large capacitance" characteristics, it is highly suitable for space-constrained applications** such as smartphones, wearable devices, and IoT modules**. It is commonly used for bypassing power supply pins on SoC chips to suppress power supply noise.

Q: Are there any recommended alternative models?
A:In case of shortage, the CC0402MRX5R5BB106 from Yageo can be evaluated. Its specifications (10µF / 6.3V / X5R / 0402) are nearly identical.

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