MLCC KR355QD7LF224KH01K

What is KR355QD7LF224KH01K MLCC?

The KR355QD7LF224KH01K is a SMD Capacitor manufactured by Murata. Key specs include 0.22µF capacitance, 1kV voltage rating, X7T dielectric, and ±10% tolerance in a 2220 package. RoHS compliant, it is designed for high-voltage filtering and decoupling in demanding power applications.

✔ RoHS Compliant  /  ✔ SMD  /  ✔ Murata Quality  /  ✔ Long-Term Supply

Typical Applications & Why This Part Fits

• High-Voltage Power Supplies: The 1kV rating and 0.22µF capacitance provide reliable bulk decoupling in DC-DC converters and offline flyback circuits, reducing ripple without exceeding voltage margins.
• Snubber Networks: X7T dielectric offers stable capacitance over temperature (-55°C to +125°C), making this MLCC ideal for absorbing transient spikes in motor drives and switching regulators.
• LED Lighting Drivers: The 2220 package combines high voltage capability with a compact footprint, enabling space-saving designs in ballasts and constant-current drivers operating at up to 1kV.

Key Features & Advantages

• 1kV High Voltage Rating: Supports direct connection to high-voltage DC links without need for series stacking, simplifying layout and boosting system reliability.
• X7T Temperature Stability: Maintains ±15% capacitance change from -55°C to +125°C, ensuring predictable performance in thermally cycling environments.
• 2220 Large Case Size: Enables higher capacitance per unit volume while improving solder joint reliability compared to smaller packages under vibration or thermal shock.

Frequently Asked Questions

1. Q: What makes KR355QD7LF224KH01K different from a standard 50V MLCC?
   A: It offers 20× higher voltage rating (1kV) and uses X7T dielectric optimized for stability under bias. The 2220 package also provides better mechanical robustness for industrial designs.
2. Q: Is KR355QD7LF224KH01K RoHS compliant?
   A: Yes, as a Murata product, it is standardly RoHS compliant and lead-free, meeting EU environmental directives.
3. Q: What is the MOQ? Can we get small batches?
   A: We support small batch orders and full BOM kitting at SZYY, including fast prototyping supply for this high-voltage MLCC. Sample quantities are available.

Cross Reference & Alternative Sourcing

While KR355QD7LF224KH01K is our primary recommendation, comparable alternatives from other manufacturers exist. We provide comprehensive BOM Kitting service to match exact project requirements.