MLCC GRM31CR72A105KA01K

What is GRM31CR72A105KA01K MLCC?

The GRM31CR72A105KA01K is a SMD capacitor manufactured by Murata. Key specs include 1µF capacitance, 100V DC rating, X7R dielectric, 1206 case size, and ±10% tolerance. RoHS compliant, it is designed for high-voltage decoupling and filtering applications demanding stable performance over a wide temperature range.

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

Typical Applications & Why This Part Fits

• Power Supply Output Smoothing: The 100V rating and 1µF capacitance provide effective ripple reduction in 48V telecom or industrial power rails, while X7R ensures minimal capacitance change under DC bias.
• DC-DC Converter Input/Output Filtering: Its high voltage tolerance and stable dielectric make it ideal for bulk decoupling in 24V–72V bus converters, reducing switching noise and voltage spikes.
• Automotive & Industrial Sensor Interfaces: The 1206 package allows reliable soldering and mechanical robustness, suitable for vibration-prone environments where standard 0805 parts may lack voltage margin.

Key Features & Advantages

• High Voltage Rating (100V): Delivers safety margin in circuits exceeding typical 50V operating levels, reducing failure risk and enabling single-component compliance with 80% derating guidelines.
• X7R Dielectric Stability: Capacitance variation within ±15% from -55°C to +125°C ensures predictable filter cutoff and timing even under extreme temperature swings.
• Compact 1206 Footprint: Balances capacitance density and assembly ease—larger than 0805 for handling convenience yet small enough for dense PCB layouts without consuming excessive board area.

Frequently Asked Questions

1. Q: What makes GRM31CR72A105KA01K different from a standard X7R MLCC?
   A: This part combines a high 100V rating with 1µF capacitance in a 1206 package—most standard X7R 1206 parts are rated at 50V or 25V. The ±10% tolerance and Murata’s tight process control also ensure consistent performance for critical designs.
2. Q: Is GRM31CR72A105KA01K 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—contact our sales team for reel cut or sample quantities.

Cross Reference & Alternative Sourcing

While GRM31CR72A105KA01K is our primary recommendation, comparable alternatives from other manufacturers (e.g., Samsung CL series or TDK C series with matching 100V 1µF X7R 1206 ratings) are available. We provide comprehensive BOM Kitting service to consolidate your entire capacitor needs into one order.