MLCC for Data Centers

MLCC for data center power supplies and server motherboards.

MLCC for Data Centers
Quick Answer: Data center power supplies and server motherboards use high-capacitance X7R/X5R MLCC for bulk decoupling, and C0G for timing and control circuits.

Recommended Dielectric

X7R and X5R for power decoupling; C0G (NP0) for timing, oscillators, and precision analog circuits.

Recommended Package Sizes

0402, 0603, 0805, 1206, 1210 — balance of capacitance density and PCB real estate.

Typical Voltage & Capacitance Ranges

Voltage Range

10V to 50V for main power rails; 6.3V for low-voltage logic.

Capacitance Range

0.1µF to 47µF for decoupling; 10pF to 100nF for timing and RF.

Typical Design Challenges

High-density PCB layout with limited space for decoupling; thermal cycling reliability; and maintaining signal integrity in high-speed interfaces.

Sourcing Challenges

Data center volume requirements need stable supply. Diversifying MLCC sourcing across multiple brands is recommended to mitigate shortage risk.

RFQ Checklist

  • Application (power supply, motherboard, storage)
  • Capacitance and voltage requirements
  • Operating temperature range
  • Quantity and delivery schedule
  • Quality documentation required?
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FAQ

What dielectric should I choose for data center power?

X7R is the standard choice for power decoupling in data center equipment due to its balance of capacitance density and temperature stability.

Are AEC-Q200 MLCC needed for data center applications?

While not always required, AEC-Q200 MLCC offer enhanced reliability for data center equipment with high uptime requirements.

How to manage MLCC sourcing for high-volume data center projects?

Submit BOM early, consider multi-brand qualification, and work with AIMLCC for stock check and alternative suggestions.

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