MLCC GRM31A5C2J331JW01D

What is GRM31A5C2J331JW01D MLCC?

The GRM31A5C2J331JW01D is a ceramic SMD capacitor manufactured by Murata. Key specs include a capacitance of 330pF, a rated voltage of 630V, a C0G/NP0 dielectric, a 1206 case size, and ±5% tolerance. RoHS compliant, it is designed for high-voltage, stable filtering and decoupling in precision circuits.

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

Typical Applications & Why This Part Fits

• High-Voltage Power Supplies: With a 630V rating, this capacitor reliably handles high-voltage DC-DC converter bus filtering and snubber circuits where standard 50V or 100V parts would fail.
• Sensor & Measurement Interfaces: The C0G/NP0 dielectric provides exceptional capacitance stability over temperature (drift ±30ppm/°C) and virtually no DC bias effect, making it ideal for precision analog front-end coupling and filtering.
• PoE (Power over Ethernet) Equipment: Typical PoE voltages reach 48-57V, and the 630V rating with ±5% tolerance gives robust margin for line transients in PD controllers or PSE injectors.

Key Features & Advantages

• Ultra-Stable C0G/NP0 Dielectric: No measurable voltage coefficient means capacitance remains 330pF regardless of applied DC voltage—critical for timing and resonant circuits.
• 630V High-Voltage Rating: Offers 3x–10x the headroom of conventional MLCCs, reducing failure risks in industrial, automotive, and telecom power rails.
• Tight ±5% Tolerance: Enables precise matching in filter networks, impedance matching, and frequency control applications without need for trimming.

Frequently Asked Questions

1. Q: What makes GRM31A5C2J331JW01D different from a standard 1206 MLCC?
   A: Most 1206 MLCCs are rated for 50V–100V; this part delivers 630V with C0G/NP0 stability, making it suitable for high-voltage signal and power conditioning where X7R or X5R dielectrics would exhibit dramatic capacitance loss under bias.
2. Q: Is GRM31A5C2J331JW01D 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 BOM kitting support and prototyping supply flexibility.

Cross Reference & Alternative Sourcing

While GRM31A5C2J331JW01D is our primary recommendation, comparable alternatives are available. We provide comprehensive BOM Kitting service.