MLCC GRM31CR73A103KW03L

What is GRM31CR73A103KW03L MLCC?

The GRM31CR73A103KW03L is a SMD capacitor manufactured by Murata. Key specs include 10000PF capacitance, 1KV voltage rating, X7R dielectric, and 1206 case size with ±10% tolerance. RoHS compliant, it is designed for high-voltage decoupling and filtering in space-constrained circuits.

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

Typical Applications & Why This Part Fits

• DC-DC Converter Output Filtering: The 1KV rating and X7R stability make this MLCC ideal for smoothing high-voltage rails in power modules, reducing ripple without derating concerns.
• Industrial Power Supply Snubber Circuits: Its 10000PF capacitance at 1KV provides reliable snubbing for switching transients, while the 1206 package supports compact PCB layouts.
• Automotive On-Board Charger Noise Suppression: The X7R dielectric ensures stable capacitance over -55°C to +125°C, critical for withstanding under-hood thermal cycles while filtering EMI.

Key Features & Advantages

• High Voltage Rating: 1KV capability allows direct use on high-voltage buses without series stacking, simplifying design and reducing component count.
• Compact 1206 Footprint: The ±10% tolerance in a standard 1206 case enables drop-in replacement for existing designs while saving board space compared to larger high-voltage caps.
• X7R Temperature Stability: ±15% capacitance change over -55°C to +125°C ensures consistent performance across wide temperature swings, matching industrial and automotive reliability needs.

Frequently Asked Questions

1. Q: What makes GRM31CR73A103KW03L different from a standard X7R capacitor?
   A: This part combines a 1KV voltage rating with 10000PF in a 1206 case, which is uncommon for standard X7R MLCCs that typically top out at 500V or lower for this package size.
2. Q: Is GRM31CR73A103KW03L 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 with flexible qty options for this high-voltage MLCC.

Cross Reference & Alternative Sourcing

While GRM31CR73A103KW03L is our primary recommendation, comparable alternatives are available from other reputable brands. We provide comprehensive BOM Kitting service to streamline your supply chain for this and all high-voltage MLCCs.