MLCC GRM31BR73A471KW01L

What is GRM31BR73A471KW01L MLCC?

The GRM31BR73A471KW01L is a high-voltage multilayer ceramic capacitor (MLCC) manufactured by Murata. Key specs include a capacitance of 470pF, rated voltage of 1KV, X7R dielectric, 1206 package, and ±10% tolerance. RoHS compliant, it is designed for demanding circuits requiring stable capacitance under high DC bias.

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

Typical Applications & Why This Part Fits

• Snubber Networks in Switching Power Supplies: The 1KV voltage rating and 470pF value are ideal for absorbing voltage spikes in flyback and bridge topologies, while X7R ensures stable capacitance across temperature ranges.
• High-Voltage DC-Link Filtering: In industrial inverters or motor drives, this capacitor provides low-loss filtering at 1KV DC bus levels, with the 1206 package offering good creepage distance and thermal dissipation.
• Automotive On-Board Charger Circuits: The ±10% tolerance and X7R stability meet stringent requirements for EMI suppression and decoupling in electric vehicle charging modules operating under high voltage stress.

Key Features & Advantages

• High Voltage Capability (1KV Rated): Allows direct use in 400V–800V DC systems without voltage derating concerns, reducing BOM component count.
• Stable X7R Dielectric: Capacitance change within ±15% over -55°C to +125°C ensures reliable performance in harsh thermal environments.
• Compact 1206 Footprint: Saves PCB space compared to higher-voltage film capacitors while still handling 1KV with proper clearance design.

Frequently Asked Questions

1. Q: What makes GRM31BR73A471KW01L different from a standard X7R MLCC?
   A: Its 1KV rated voltage is significantly higher than typical 50V or 100V X7R capacitors, enabling direct use in high-voltage power stages without series stacking.
2. Q: Is GRM31BR73A471KW01L 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 and flexible quantity breaks for engineering builds.

Cross Reference & Alternative Sourcing

While GRM31BR73A471KW01L is our primary recommendation, comparable alternatives with similar 470pF/1KV/X7R/1206 ratings are available. We provide comprehensive BOM Kitting service to consolidate all passives for your project.