MLCC GRM31A7U2J471JW31D

What is GRM31A7U2J471JW31D MLCC?

The GRM31A7U2J471JW31D is a high-voltage SMD capacitor manufactured by Murata. Key specs include 470pF capacitance, 630V rating, U2J dielectric, 1206 package, and ±5% tolerance. RoHS compliant, it is designed for stable, low-loss performance in demanding circuits.

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

Typical Applications & Why This Part Fits

• High-Voltage DC-DC Converters: The 630V rating and 470pF capacitance allow effective input/output filtering without derating, preserving reliability in automotive or industrial power stages.
• Snubber Networks for Switching Circuits: U2J dielectric offers minimal capacitance change under bias and low dissipation factor, making it ideal for damping voltage spikes in MOSFET/IGBT bridges.
• Resonant Tank Circuits in Wireless Chargers: The tight ±5% tolerance and stable temperature characteristics (±30ppm/°C typical for U2J) ensure precise frequency control in high-Q inductive loops.

Key Features & Advantages

• High Voltage & Small Size: 630V rating in a compact 1206 body reduces board space while handling elevated potentials in power modules.
• Low ESR & Low Loss: U2J (Class I) ceramic yields very low equivalent series resistance, minimizing heat generation at high frequencies.
• Excellent Bias Stability: Unlike X7R/X5R, U2J capacitance varies less than ±5% under rated DC voltage, ensuring predictable circuit behavior.

Frequently Asked Questions

1. Q: What makes GRM31A7U2J471JW31D different from a standard X7R MLCC?
   A: This part uses U2J dielectric—a Class I material—offering higher voltage rating (630V), lower capacitance change with DC bias, and lower losses than typical X7R parts, albeit at a smaller capacitance value (470pF).
2. Q: Is GRM31A7U2J471JW31D 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—so any quantity from reels to few pieces is possible.

Cross Reference & Alternative Sourcing

While GRM31A7U2J471JW31D is our primary recommendation, comparable alternatives with similar 630V/470pF/1206 ratings exist. We provide comprehensive BOM Kitting service to simplify your procurement.