MLCC for Industrial Power Supplies

MLCC for industrial SMPS, motor drives and power conversion.

MLCC for Industrial Power Supplies
Quick Answer: Industrial power supplies require high-voltage, high-capacitance MLCC with X7R/X5R dielectrics for SMPS, motor drives, and power conversion circuits.

Recommended Dielectric

X7R and X5R for bulk decoupling and filtering; C0G (NP0) for timing and control circuits; X7S for high-capacitance applications.

Recommended Package Sizes

0805, 1206, 1210, 1812, 2220 — larger packages for high-voltage and high-capacitance requirements.

Typical Voltage & Capacitance Ranges

Voltage Range

50V to 3kV for industrial power; 10V to 50V for control and auxiliary circuits.

Capacitance Range

1nF to 100µF for power decoupling; 100pF to 10nF for snubber and EMI filtering.

Typical Design Challenges

High-voltage derating for reliability; thermal management; and meeting safety standards (UL, IEC) for industrial equipment.

Sourcing Challenges

High-voltage MLCC have longer lead times and limited source options. Early specification and alternative evaluation recommended.

RFQ Checklist

  • Voltage rating and derating requirement
  • Capacitance and tolerance
  • Operating temperature and humidity range
  • Safety certification required?
  • Quantity and lead time
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FAQ

What voltage derating should I apply for high-voltage MLCC?

Typical derating is 50-70% of rated voltage for industrial applications to ensure long-term reliability.

Can high-voltage MLCC replace film capacitors in some applications?

In many DC filtering and decoupling applications, high-voltage MLCC can replace film capacitors with smaller size and lower cost, but evaluate DC bias and temperature characteristics.

Does AIMLCC supply high-voltage MLCC?

AIMLCC provides independent sourcing support for high-voltage MLCC up to 3kV. Send RFQ for stock check and quotation.

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