What is GRM31A7U2J102JW31D MLCC?
The GRM31A7U2J102JW31D is a SMD Capacitor manufactured by Murata. Key specs include CAP CER 1000PF 630V U2J 1206 ±5%. RoHS compliant, it is designed for high-voltage filtering and coupling applications where stable capacitance and low loss are required.
✔ RoHS Compliant / ✔ SMD / ✔ Murata Quality / ✔ Long-Term Supply
Typical Applications & Why This Part Fits
- Power Supply Snubber Circuits: The 630V rating plus U2J dielectric’s low ESR make it ideal for damping voltage spikes in flyback or bridge converters.
- Automotive High-Voltage Coupling: With ±5% tolerance and stable capacitance across temperature (U2J), it suits signal coupling in EV battery management systems.
- Industrial LED Lighting Drivers: The 1000pF value provides precise EMI filtering at high voltage, while the small 1206 footprint saves board space.
Key Features & Advantages
- High Voltage Rating (630V): Enables use in DC‑link and snubber designs without derating concerns, improving system reliability.
- U2J Dielectric: Offers very low dissipation factor and stable capacitance over a wide temperature range, superior to X7R for timing circuits.
- Tight Tolerance (±5%): Reduces circuit tuning effort and ensures consistent performance across production batches.
Frequently Asked Questions
- Q: What makes GRM31A7U2J102JW31D different from a standard MLCC?
A: Unlike general‑purpose X7R parts, U2J maintains capacitance within ±3% from −55°C to +125°C and has very low ESR, making it preferred for high‑frequency, high‑voltage paths. - Q: Is GRM31A7U2J102JW31D RoHS compliant?
A: Yes, as a Murata product, it is standardly RoHS compliant and lead‑free. - 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 for this exact grade.
Cross Reference & Alternative Sourcing
While GRM31A7U2J102JW31D is our primary recommendation, comparable alternatives are available. We provide comprehensive BOM Kitting service.
SZYY (Shenzhen Yuanyue Electronic Technology Co., Ltd.) is an independent electronic components distributor based in Shenzhen, China. We specialize in BOM kitting and global component supply, offering genuine, traceable parts with extensive inventory and fast shipping. We also provide PCBA coordination services through our trusted EMS partners — helping you achieve a true one-stop experience from BOM to finished PCBA.
📍 Room 19E, Block B, Guangbo Modern Window Building, Shennan Middle Road, Futian District, Shenzhen, Guangdong, China
📞 Mr. Chen: +86 13670242188 / ✉️ SZYY@SZYY.LTD / 🌐 https://szyy.ltd