MLCC KCM55V5C3A443JDL2L

What is KCM55V5C3A443JDL2L MLCC?

The KCM55V5C3A443JDL2L is a high-voltage SMD capacitor manufactured by Murata. Key specs include 0.044µF capacitance, 1kV DC rating, C0G/NP0 dielectric, and ±5% tolerance in a 2SMD package. RoHS compliant, it is designed for demanding power conversion and snubber circuits requiring stable capacitance under high bias.

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

Typical Applications & Why This Part Fits

• DC-DC Converter Snubbers: The 0.044µF value and 1kV voltage rating make it ideal for reducing voltage ringing in high-voltage power stages while C0G/NP0 ensures minimal capacitance loss with DC bias.
• Resonant LLC Converters: ±5% tolerance and stable temperature coefficient deliver predictable resonant frequency performance, critical for efficient energy transfer in high-frequency switching.
• Automotive XEV Auxiliary Inverters: The robust 2SMD construction and Murata’s rigorous reliability testing suit harsh under-hood environments where 1kV isolation is required.

Key Features & Advantages

• High Voltage Handling (1kV): Enables direct placement on high-voltage rails without derating concerns, reducing PCB footprint compared to stacked solutions.
• C0G/NP0 Dielectric: Offers near-zero capacitance change over temperature and voltage, maintaining circuit accuracy across -55°C to +125°C.
• 2SMD Package – Ultra-Compact: The small footprint combined with a 0.044µF / 1kV rating in a single component simplifies layout and reduces assembly cost.

Frequently Asked Questions

1. Q: What makes KCM55V5C3A443JDL2L different from a standard 1kV MLCC?
   A: Unlike many high-voltage MLCCs that use X7R dielectric, this part employs C0G/NP0, offering superior stability and low losses – critical for resonant and timing circuits where capacitance drift is unacceptable.
2. Q: Is KCM55V5C3A443JDL2L RoHS compliant?
   A: Yes, as a Murata product, it is standardly RoHS compliant and lead-free, meeting current environmental regulations.
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 C0G capacitor.

Cross Reference & Alternative Sourcing

While KCM55V5C3A443JDL2L is our primary recommendation for designs requiring a 0.044µF / 1kV C0G MLCC, comparable alternatives from other trusted brands are available. We provide comprehensive BOM Kitting service to ensure you get exactly the right components for your project.