MLCC GRM43DR73A333KW01L

What is GRM43DR73A333KW01L MLCC?

The GRM43DR73A333KW01L is a surface-mount multilayer ceramic capacitor (MLCC) manufactured by Murata. Key specs include a capacitance of 0.033 µF, a voltage rating of 1 kV, X7R dielectric, 1812 case size, and ±10% tolerance. RoHS compliant, it is designed for high-voltage decoupling and filtering in demanding environments.

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

Typical Applications & Why This Part Fits

• High-Voltage DC-DC Converters: With a 1 kV rating and stable X7R dielectric, this capacitor reliably handles bus rail filtering and snubber circuits in power modules.
• Industrial LED Lighting Drivers: The 1812 package provides adequate creepage distance for offline flyback topologies, while 0.033 µF smooths high-frequency ripple without excessive bulk.
• Automotive On-Board Charger (OBC) Input Filters: X7R’s low capacitance change over temperature (-55°C to +125°C) ensures consistent performance under thermal cycling in EV powertrains.

Key Features & Advantages

• 1 kV High-Voltage Rating: Enables use in primary-side circuits and high-potential isolation barriers without derating concerns.
• X7R Dielectric Stability: Capacitance shift within ±15% over the full temperature range guarantees predictable filtering in fluctuating environments.
• Compact 1812 Footprint: Reduces PCB area compared to through-hole alternatives while still offering robust voltage withstand.

Frequently Asked Questions

1. Q: What makes GRM43DR73A333KW01L different from a standard 0.033 µF MLCC?
   A: Its 1 kV voltage rating is significantly higher than typical low-voltage MLCCs; combined with Murata’s X7R formulation, it provides reliable operation in 400 V+ bus applications.
2. Q: Is GRM43DR73A333KW01L RoHS compliant?
   A: Yes, as a Murata product, it is standardly RoHS compliant and lead-free.
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.

Cross Reference & Alternative Sourcing

While GRM43DR73A333KW01L is our primary recommendation, comparable alternatives are available. We provide comprehensive BOM Kitting service.