1806J1000221MCRE01

Overview

The Knowles Syfer 1806J1000221MCRE01 is a surface-mount multilayer ceramic capacitor (MLCC) designed for high-reliability applications. It features a C0G/NP0 dielectric material, ensuring stable capacitance characteristics across varying temperatures and voltages. The component operates within a voltage range of up to 100 VDC and provides a nominal capacitance of 220 pF with a tolerance of ±20%. Housed in an EIA 1806 package measuring 4.5 mm by 1.6 mm, it utilizes nickel barrier terminations with tin plating for robust soldering compatibility. The device supports a wide operating temperature range from -55°C to +125°C.

Feature Summary

• Utilizes C0G/NP0 dielectric for minimal capacitance variation over temperature and bias voltage.
• Features nickel barrier termination structure with tin plating for enhanced solderability and reliability.
• Designed as a Class 1 ceramic capacitor suitable for high-frequency and precision circuit applications.

Applications

• High-frequency RF filtering circuits
• Precision timing and oscillator networks
• High-reliability industrial electronics

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm termination finish and packaging configuration. Ensure the selected variant matches the required EMI filter or general-purpose MLCC specifications. Cross-reference the Mouser part number 843-1806J1000221MC to validate availability and technical parameters before finalizing procurement orders.

Selection Notes

Select this component when a stable Class 1 capacitor is required in an 1806 footprint. The C0G dielectric ensures low loss and high Q-factor performance. Verify that the 100V DC rating meets the circuit's peak voltage requirements. Consider the nickel barrier termination for applications requiring strong mechanical adhesion during reflow soldering processes.

Part Context

This part belongs to the Knowles Syfer E01 series of high-reliability MLCCs. The series is engineered for demanding environments where stability and longevity are critical. The 1806 case size offers a balance between capacitance density and physical footprint, making it suitable for dense PCB layouts in aerospace, medical, and communication equipment.

Replacement Considerations

Direct substitutes must match the 1806 package, 100V rating, 220pF value, and C0G dielectric. Verify termination compatibility. Generic equivalents may lack the specific nickel barrier reliability standards of the Syfer line.