STDCQS1-27M

Overview

The STDCQS1-27M is a surface-mount MHz crystal manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a nominal frequency of 27 MHz with a frequency tolerance of ±15ppm and stability of ±50ppm. The component features an 8pF load capacitance and 100 Ohms equivalent series resistance. Packaged in a 4-SMD, no-lead form factor measuring 3.20mm x 2.50mm x 0.60mm maximum height, it supports base harmonic operation. Rated for AEC-Q200 qualification, it functions within a temperature range of -40°C to 125°C.

Feature Summary

• AEC-Q200 qualified for automotive electronic reliability standards
• High-frequency stability suitable for precision timing applications
• Compact surface-mount package design for automated assembly

Applications

• Automotive infotainment systems
• Telematics control units
• On-board diagnostic interfaces
• Consumer electronics requiring wide temperature operation

Procurement Notes

Verify the specific ordering suffix against the official NDK datasheet to ensure correct frequency tolerance and load capacitance specifications. Confirm that the requested variant matches the required AEC-Q200 automotive grade status. Cross-reference the package dimensions and terminal configuration with the target PCB footprint to prevent mechanical mismatch during procurement.

Selection Notes

Select this component when a 27 MHz reference signal is required in space-constrained designs. Ensure the circuit load capacitance aligns with the specified 8pF value to maintain accuracy. Consider the ±15ppm tolerance limit relative to system clock requirements. Verify thermal management capabilities given the wide operating temperature range up to 125°C.

Part Context

This part belongs to the NX3225SA series of miniature crystal resonators from NDK. The series utilizes synthetic quartz technology for consistent performance. It represents a standard solution for general-purpose clock generation in modern electronic assemblies where size reduction and reliability are prioritized over ultra-high precision oscillation.

Replacement Considerations

STDCRS2-27M is a documented substitute part number.