MLCC KRM31KR72A105KH01K

What is KRM31KR72A105KH01K MLCC?

The KRM31KR72A105KH01K is a SMD capacitor manufactured by Murata. Key specs include 1µF capacitance, 100V rated voltage, X7R dielectric, and 1206 case size with ±10% tolerance. RoHS compliant, it is designed for stable decoupling and filtering in space-constrained power circuits.

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

Typical Applications & Why This Part Fits

• DC-DC Converter Output Filtering: The 100V rating and 1µF capacitance provide effective ripple suppression in high-voltage power modules, while X7R ensures stable capacitance across temperature.
• Industrial Sensor Interface Circuits: ±10% tolerance meets precision requirements for coupling and bypass applications, and the 1206 footprint simplifies manual inspection and rework.
• Automotive Body Electronics: Murata’s rigorous quality control and the part’s robust X7R characteristic make it suitable for harsh under-hood environments requiring reliable decoupling.

Key Features & Advantages

• High Voltage Handling: 100V rating exceeds typical 50V or 25V MLCCs, offering extra margin for power rail designs where voltage spikes occur.
• Stable X7R Dielectric: Capacitance variation within ±15% over -55°C to +125°C ensures consistent filtering performance across wide temperature swings.
• Compact 1206 Case Size: Balances board-area efficiency with sufficient pad size for reliable solder joints, easing assembly for both hand-solder and reflow processes.

Frequently Asked Questions

1. Q: What makes KRM31KR72A105KH01K different from a standard 1µF MLCC?
   A: This specific Murata part combines a 100V rating with X7R stability in the 1206 package, offering higher voltage margin and better temperature behavior than generic 50V X5R alternatives.
2. Q: Is KRM31KR72A105KH01K 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 with flexible lot sizes.

Cross Reference & Alternative Sourcing

While KRM31KR72A105KH01K is our primary recommendation, comparable alternatives are available. We provide comprehensive BOM Kitting service.