MLCC GC355DD7LQ474KX18K

What is GC355DD7LQ474KX18K MLCC?

The GC355DD7LQ474KX18K is a multilayer ceramic capacitor manufactured by Murata. Key specs include 0.47µF capacitance, 630V rated voltage, X7T dielectric, and 2220 case size with ±10% tolerance. RoHS compliant, it is designed for high-voltage energy storage and filtering in power management circuits.

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

Typical Applications & Why This Part Fits

• DC-DC Converter Output Smoothing: The 630V rating and 0.47µF value provide stable bulk capacitance for high-voltage rails, reducing ripple in telecom and industrial power modules.
• Input Filter Capacitors for Power Supplies: X7T dielectric ensures capacitance stability across wide temperature ranges, critical for AC-DC front-end filtering in harsh environments.
• Snubber Networks in High-Power Switching: The large 2220 footprint handles higher current ripple, while ±10% tolerance suits non-critical decoupling in motor drives and inverters.

Key Features & Advantages

• High Voltage Rating (630V): Enables use in circuits exceeding 400V, eliminating the need for series stacking of lower-voltage capacitors.
• Stable X7T Dielectric: Capacitance change within ±15% over –55°C to +125°C, ensuring reliable performance under temperature stress.
• Compact 2220 Surface Mount Package: Balances high capacitance with a relatively small footprint, saving PCB space in dense power designs.

Frequently Asked Questions

1. Q: What makes GC355DD7LQ474KX18K different from a standard MLCC?
   A: This part combines a high voltage rating (630V) with a mid-range capacitance (0.47µF) in an industry-standard 2220 package, making it ideal for power filtering without sacrificing board space.
2. Q: Is GC355DD7LQ474KX18K 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 fast prototyping supply, enabling flexible quantity fulfillment for design validation.

Cross Reference & Alternative Sourcing

While GC355DD7LQ474KX18K is our primary recommendation, comparable alternatives are available for your BOM requirements.