STDCSW2-20M

Overview

The STDCSW2-20M is a surface-mount quartz crystal resonator manufactured by NDK. It operates at a fundamental frequency of 20 MHz with a load capacitance of 10 pF and an equivalent series resistance of 60 Ohms. The component features a frequency tolerance and stability of ±10 ppm. It utilizes a 4-SMD, no-lead package with dimensions of 2.50mm x 2.00mm x 0.65mm maximum height. The device supports base harmonic operation within a temperature range of -10°C to +60°C.

Feature Summary

• Compact 4-SMD surface-mount design for automated assembly
• High frequency stability of ±10 ppm for precise timing applications
• RoHS compliant construction suitable for modern electronics manufacturing

Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronic circuit synchronization

Procurement Notes

Verify the specific suffix codes against official NDK documentation to ensure correct packaging options such as tape and reel or cut tape. Confirm that the 10pF load capacitance matches the target circuit design requirements before finalizing procurement orders to prevent impedance mismatch issues.

Selection Notes

Select this component when a small footprint is required alongside tight frequency stability specifications. The 4-SMD package offers mechanical robustness compared to larger through-hole alternatives. Ensure the operating temperature range of -10°C to +60°C aligns with the environmental conditions of the intended application board.

Part Context

This part belongs to the NX2520SA series of crystals from NDK. The series is characterized by its miniature size and suitability for portable devices. The STDCSW2-20M specifically addresses the need for stable 20 MHz reference signals in space-constrained digital circuits requiring high precision.

Replacement Considerations

Direct substitutes must match the 20 MHz frequency, 10pF load capacitance, and 4-SMD (2.5x2mm) package dimensions. Verify ESR values and frequency stability tolerances to ensure functional equivalence in the specific circuit topology.