MLCC GRM31B7U2E103JW31L

What is GRM31B7U2E103JW31L Multilayer Ceramic Capacitor?

The GRM31B7U2E103JW31L is a SMD capacitor manufactured by Murata. Key specs include 10000pF capacitance, 250V rated voltage, U2J dielectric, 1206 package, and ±5% tolerance. RoHS compliant, it is designed for high-stability filtering and decoupling in power circuits requiring low capacitance change over voltage and temperature.

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

Typical Applications & Why This Part Fits

• DC-DC Converter Output Filtering: The 250V rating and U2J dielectric ensure stable capacitance under high bias voltages, critical for ripple suppression in 48V bus converters.
• Resonant Circuit Matching: ±5% tolerance and low voltage coefficient make it suitable for LC tank circuits in wireless power or RF modules where precise capacitance is required.
• High-Voltage Snubber Networks: 10000pF at 250V works well across switching transistors to dampen voltage spikes, benefiting from the low ESR of 1206 size.

Key Features & Advantages

• U2J Dielectric: Offers stable temperature coefficient (±750ppm/°C) and minimal capacitance shift with DC bias, outperforming X7R in high-voltage applications.
• 250V Voltage Rating: Enables direct use in intermediate bus voltages up to 200V with sufficient derating margin, reducing part count.
• 1206 Package: Combines ease of manual assembly with robust mechanical strength for vibration-prone environments, while supporting higher capacitance values than smaller footprints.

Frequently Asked Questions

1. Q: What makes GRM31B7U2E103JW31L different from a standard 1206 10000pF X7R capacitor?
   A: Unlike X7R, the U2J dielectric exhibits nearly flat capacitance vs. DC bias—essential for high-voltage circuits where standard class II ceramics lose up to 70% of rated capacitance.
2. Q: Is GRM31B7U2E103JW31L RoHS compliant?
   A: Yes, as a Murata product, it is standardly RoHS compliant and lead-free, verified by its JW suffix marking.
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 of this specific Murata capacitor.

Cross Reference & Alternative Sourcing

While GRM31B7U2E103JW31L is our primary recommendation, comparable alternatives (e.g., other Murata U2J series 1206 10000pF 250V) are available. We provide comprehensive BOM Kitting service to ensure seamless supply chain integration.