MLCC KCM55QR72A685KH01K

What is KCM55QR72A685KH01K MLCC?

The KCM55QR72A685KH01K is a SMD Capacitor manufactured by Murata. Key specs include 6.8µF capacitance, 100V rating, X7R dielectric, ±10% tolerance. RoHS compliant, it is designed for high-voltage decoupling and energy storage in demanding power circuits.

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

Typical Applications & Why This Part Fits

• DC-DC Converter Output Filtering: With 100V rating and 6.8µF capacitance in X7R, it provides stable filtering in 48V or 72V bus converters, handling ripple and transients reliably.
• Base Station Power Supplies: The high voltage (100V) combined with X7R temperature-stable dielectric ensures consistent performance in outdoor telecom power modules operating from -55°C to +125°C.
• Industrial Motor Drive Snubbers: ±10% tolerance and robust SMD construction allow effective snubbing of voltage spikes in 3-phase inverters, reducing EMI without sacrificing board space.

Key Features & Advantages

• 100V DC Rating: Enables direct use in high-voltage rails without derating worries, simplifying design for 48V and 60V systems.
• X7R Dielectric Stability: Capacitance change within ±15% over -55°C to +125°C ensures predictable behavior in harsh thermal environments.
• Compact SMD Footprint: Saves PCB area compared to through-hole alternatives, allowing higher density layouts in space-constrained power electronics.

Frequently Asked Questions

1. Q: What makes KCM55QR72A685KH01K different from a standard MLCC?
   A: Its 100V rating in a standard SMD package combined with 6.8µF capacitance and X7R stability makes it ideal for high-voltage decoupling where typical 50V parts would fail.
2. Q: Is KCM55QR72A685KH01K 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 BOM kitting support at SZYY, including prototyping supply with flexible quantities.

Cross Reference & Alternative Sourcing

While KCM55QR72A685KH01K is our primary recommendation, comparable alternatives with similar 100V X7R 6.8µF SMD specs are available. We provide comprehensive BOM Kitting service.